master..03b452e · Idris-dev

.travis.yml+36−54

since splitsnapshots

unifiedsplit

@@ -1,4 +1,5 @@

1−dist: xenial

1+dist: trusty

2+sudo: false

2

3

3language: c

4language: c

4

5

@@ -8,37 +9,35 @@ env:

8

9

9matrix:

10matrix:

10 include:

11 include:

11− - env: CABALVER="2.4" GHCVER="8.6.5" STACKVER="15.4" STYLISH=YES

12+ - env: CABALVER="2.2" GHCVER="8.6.5" STACKVER="14.15" STYLISH=YES

12− addons: {apt: {packages: [cabal-install-2.4,ghc-8.6.5,hscolour], sources: [hvr-ghc]}}

13+ addons: {apt: {packages: [cabal-install-2.2,ghc-8.6.5,hscolour], sources: [hvr-ghc]}}

14+ - env: CABALVER="2.2" GHCVER="7.10.3" TESTS="test_c"

15+ compiler: ": #GHC 7.10.3"

16+ addons: {apt: {packages: [cabal-install-2.2,ghc-7.10.3,cppcheck,hscolour], sources: [hvr-ghc]}}

17+# Disabled because it's always timing out

18+# - env: CABALVER="1.24" GHCVER="8.0.1" TESTS="test_c"

19+# compiler: ": #GHC 8.0.1"

20+# addons: {apt: {packages: [cabal-install-1.24,ghc-8.0.1,cppcheck,hscolour], sources: [hvr-ghc]}}

13− - env: CABALVER="2.4" GHCVER="8.2.2" TESTS="lib_doc doc"

21+ - env: CABALVER="2.0" GHCVER="8.2.2" TESTS="lib_doc doc"

14 compiler: ": #GHC 8.2.2"

22 compiler: ": #GHC 8.2.2"

15− addons: {apt: {packages: [cabal-install-2.4,ghc-8.2.2,cppcheck,hscolour], sources: [hvr-ghc]}}

23+ addons: {apt: {packages: [cabal-install-2.0,ghc-8.2.2,cppcheck,hscolour], sources: [hvr-ghc]}}

16− - env: CABALVER="2.4" GHCVER="8.2.2" TESTS="test_js"

24+ - env: CABALVER="2.0" GHCVER="8.2.2" TESTS="test_js"

17 compiler: ": #GHC 8.2.2"

25 compiler: ": #GHC 8.2.2"

18− addons: {apt: {packages: [cabal-install-2.4,ghc-8.2.2,cppcheck,hscolour], sources: [hvr-ghc]}}

26+ addons: {apt: {packages: [cabal-install-2.0,ghc-8.2.2,cppcheck,hscolour], sources: [hvr-ghc]}}

19− - env: CABALVER="2.4" GHCVER="8.2.2" TESTS="test_c"

27+ - env: CABALVER="2.0" GHCVER="8.2.2" TESTS="test_c"

20 compiler: ": #GHC 8.2.2"

28 compiler: ": #GHC 8.2.2"

21− addons: {apt: {packages: [cabal-install-2.4,ghc-8.2.2,cppcheck,hscolour], sources: [hvr-ghc]}}

29+ addons: {apt: {packages: [cabal-install-2.0,ghc-8.2.2,cppcheck,hscolour], sources: [hvr-ghc]}}

22− - env: CABALVER="2.4" GHCVER="8.4.4" TESTS="lib_doc doc"

30+#TODO: The idris built with those fails due to libffi dynamic linking version mismatch.

23− compiler: ": #GHC 8.4.4"

31+# Caused by the GHC backport to Trusty?

24− addons: {apt: {packages: [cabal-install-2.4,ghc-8.4.4,cppcheck,hscolour], sources: [hvr-ghc]}}

25− - env: CABALVER="2.4" GHCVER="8.4.4" TESTS="test_js"

26− compiler: ": #GHC 8.4.4"

27− addons: {apt: {packages: [cabal-install-2.4,ghc-8.4.4,cppcheck,hscolour], sources: [hvr-ghc]}}

28− - env: CABALVER="2.4" GHCVER="8.4.4" TESTS="test_c"

32+# - env: CABALVER="2.2" GHCVER="8.4.1" TESTS="lib_doc doc"

29− compiler: ": #GHC 8.4.4"

33+# compiler: ": #GHC 8.4.1"

30− addons: {apt: {packages: [cabal-install-2.4,ghc-8.4.4,cppcheck,hscolour], sources: [hvr-ghc]}}

34+# addons: {apt: {packages: [cabal-install-2.2,ghc-8.4.1,cppcheck,hscolour], sources: [hvr-ghc]}}

31− - env: CABALVER="3.0" GHCVER="8.8.3" TESTS="lib_doc doc"

32− compiler: ": #GHC 8.8.3"

33− addons: {apt: {packages: [cabal-install-3.0,ghc-8.8.3,cppcheck,hscolour], sources: [hvr-ghc]}}

34− - env: CABALVER="3.0" GHCVER="8.8.3" TESTS="test_js"

35+# - env: CABALVER="2.2" GHCVER="8.4.1" TESTS="test_js"

35− compiler: ": #GHC 8.8.3"

36+# compiler: ": #GHC 8.4.1"

36− addons: {apt: {packages: [cabal-install-3.0,ghc-8.8.3,cppcheck,hscolour], sources: [hvr-ghc]}}

37+# addons: {apt: {packages: [cabal-install-2.2,ghc-8.4.1,cppcheck,hscolour], sources: [hvr-ghc]}}

37− - env: CABALVER="3.0" GHCVER="8.8.3" TESTS="test_c"

38+# - env: CABALVER="2.2" GHCVER="8.4.1" TESTS="test_c"

38− compiler: ": #GHC 8.8.3"

39+# compiler: ": #GHC 8.4.1"

39− addons: {apt: {packages: [cabal-install-3.0,ghc-8.8.3,cppcheck,hscolour], sources: [hvr-ghc]}}

40+# addons: {apt: {packages: [cabal-install-2.2,ghc-8.4.1,cppcheck,hscolour], sources: [hvr-ghc]}}

40− - env: CABALVER="3.0" GHCVER="8.8.3" IDRIS2=YES

41− addons: {apt: {packages: [cabal-install-3.0,ghc-8.8.3], sources: [hvr-ghc]}}

42 fast-finish: true

41 fast-finish: true

43

42

44cache:

43cache:

@@ -57,7 +56,7 @@ before_install:

57 - unset CC

56 - unset CC

58 - if [[ $TRAVIS_OS_NAME == 'linux' ]];

57 - if [[ $TRAVIS_OS_NAME == 'linux' ]];

59 then

58 then

60− export PATH=/opt/ghc/$GHCVER/bin:/opt/cabal/$CABALVER/bin:$HOME/.cabal/bin:$HOME/opt/scheme/bin/:$PATH;

59+ export PATH=/opt/ghc/$GHCVER/bin:/opt/cabal/$CABALVER/bin:$HOME/.cabal/bin:$PATH;

61 export SED=sed;

60 export SED=sed;

62 export ZCAT=zcat;

61 export ZCAT=zcat;

63 fi

62 fi

@@ -72,21 +71,6 @@ before_install:

72 export PKG_CONFIG_PATH=/usr/local/opt/libffi/lib/pkgconfig:$PKG_CONFIG_PATH;

71 export PKG_CONFIG_PATH=/usr/local/opt/libffi/lib/pkgconfig:$PKG_CONFIG_PATH;

73 fi

72 fi

74 - if [ -n "$STYLISH" ]; then ./stylize.sh; exit $?; fi

73 - if [ -n "$STYLISH" ]; then ./stylize.sh; exit $?; fi

75− - if [ -n "$IDRIS2" ];

76− then

77− git clone https://github.com/edwinb/Idris2 &&

78− wget https://github.com/cisco/ChezScheme/archive/v9.5.2.tar.gz &&

79− tar xvzf v9.5.2.tar.gz &&

80− cd ChezScheme-9.5.2 &&

81− ./configure --threads --installprefix=$HOME/opt/scheme &&

82− make -j install &&

83− cd .. &&

84− cabal v1-update &&

85− travis_wait cabal v1-install &&

86− cd Idris2 &&

87− make idris2 && make base && make contrib;

88− exit $?;

89− fi

90

74

91install:

75install:

92 - which cabal

76 - which cabal

@@ -104,7 +88,7 @@ install:

104 # causing cabal's default configuration (jobs: $ncpus)

88 # causing cabal's default configuration (jobs: $ncpus)

105 # to run into the GHC #9221 bug which can result in longer build-times.

89 # to run into the GHC #9221 bug which can result in longer build-times.

106 - $SED -i -r 's/(^jobs:).*/\1 2/' $HOME/.cabal/config

90 - $SED -i -r 's/(^jobs:).*/\1 2/' $HOME/.cabal/config

107− - cabal v1-install -f FFI --only-dependencies --enable-tests --dry -v > installplan.txt

91+ - cabal install -f FFI --only-dependencies --enable-tests --dry -v > installplan.txt

108 - $SED -i -e '1,/^Resolving /d' installplan.txt; cat installplan.txt

92 - $SED -i -e '1,/^Resolving /d' installplan.txt; cat installplan.txt

109 # check whether current requested install-plan matches cached package-db snapshot

93 # check whether current requested install-plan matches cached package-db snapshot

110 - if diff -u installplan.txt $HOME/.cabsnap/installplan.txt;

94 - if diff -u installplan.txt $HOME/.cabsnap/installplan.txt;

@@ -117,7 +101,7 @@ install:

117 echo "cabal build-cache MISS";

101 echo "cabal build-cache MISS";

118 rm -rf $HOME/.cabsnap;

102 rm -rf $HOME/.cabsnap;

119 mkdir -p $HOME/.ghc $HOME/.cabal/lib $HOME/.cabal/share $HOME/.cabal/bin;

103 mkdir -p $HOME/.ghc $HOME/.cabal/lib $HOME/.cabal/share $HOME/.cabal/bin;

120− cabal v1-install -f FFI --only-dependencies --enable-tests;

104+ cabal install -f FFI --only-dependencies --enable-tests;

121 fi

105 fi

122 # snapshot package-db on cache miss

106 # snapshot package-db on cache miss

123 - if [ ! -d $HOME/.cabsnap ];

107 - if [ ! -d $HOME/.cabsnap ];

@@ -128,30 +112,28 @@ install:

128 cp -a $HOME/.cabal/lib $HOME/.cabal/share $HOME/.cabal/bin installplan.txt $HOME/.cabsnap/;

112 cp -a $HOME/.cabal/lib $HOME/.cabal/share $HOME/.cabal/bin installplan.txt $HOME/.cabsnap/;

129 fi

113 fi

130

114

131−

132before_script:

115before_script:

133 - ORIGINAL_DIR=$(pwd)

116 - ORIGINAL_DIR=$(pwd)

134− - cabal v1-sdist

117+ - cabal sdist

135 - cd ..

118 - cd ..

136 - tar -xf ${ORIGINAL_DIR}/dist/${PKGNAME}*.tar.gz

119 - tar -xf ${ORIGINAL_DIR}/dist/${PKGNAME}*.tar.gz

137 - cd ${PKGNAME}*

120 - cd ${PKGNAME}*

138script:

121script:

139− - export LD_PRELOAD=/opt/ghc/${GHCVER}/lib/ghc-${GHCVER}/rts/libffi.so.7

140###

122###

141 - echo 'Configure...' && echo -en 'travis_fold:start:script.configure\\r'

123 - echo 'Configure...' && echo -en 'travis_fold:start:script.configure\\r'

142− - cabal v1-configure -f FFI -f CI --enable-tests

124+ - cabal configure -f FFI -f CI --enable-tests

143 - echo -en 'travis_fold:end:script.configure\\r'

125 - echo -en 'travis_fold:end:script.configure\\r'

144###

126###

145 - echo 'Build...' && echo -en 'travis_fold:start:script.build\\r'

127 - echo 'Build...' && echo -en 'travis_fold:start:script.build\\r'

146− - cabal v1-build

128+ - cabal build

147 - echo -en 'travis_fold:end:script.build\\r'

129 - echo -en 'travis_fold:end:script.build\\r'

148###

130###

149 - echo 'Copy...' && echo -en 'travis_fold:start:script.copy\\r'

131 - echo 'Copy...' && echo -en 'travis_fold:start:script.copy\\r'

150− - cabal v1-copy

132+ - cabal copy

151 - echo -en 'travis_fold:end:script.copy\\r'

133 - echo -en 'travis_fold:end:script.copy\\r'

152###

134###

153 - echo 'Register...' && echo -en 'travis_fold:start:script.register\\r'

135 - echo 'Register...' && echo -en 'travis_fold:start:script.register\\r'

154− - cabal v1-register

136+ - cabal register

155 - echo -en 'travis_fold:end:script.register\\r'

137 - echo -en 'travis_fold:end:script.register\\r'

156###

138###

157 - echo 'Cppcheck...' && echo -en 'travis_fold:start:script.cppcheck\\r'

139 - echo 'Cppcheck...' && echo -en 'travis_fold:start:script.cppcheck\\r'

CHANGELOG.md−3

@@ -1,6 +1,3 @@

1−# New since last release

2−+ Updated to work with GHC 8.8 and cabal 3.0

3−

4# New in 1.3.2

1# New in 1.3.2

5+ Documentation added to proof section

2+ Documentation added to proof section

6

3

CITATION.md+1−1

@@ -17,7 +17,7 @@ If you use `Idris` in your work we would prefer it if you would use the followin

17 pages = {552--593},

18 numpages = {42},

19 doi = {10.1017/S095679681300018X},

20− URL = {https://journals.cambridge.org/article_S095679681300018X},

20+ URL = {http://journals.cambridge.org/article_S095679681300018X},

21}

22```

23

CONTRIBUTING.md+5−5

@@ -6,9 +6,9 @@ Here are a few guidelines that we would like contributors to follow so that we c

6

7## Getting Started

8

9−1. Make sure you are familiar with [Git](https://git-scm.com/book).

9+1. Make sure you are familiar with [Git](http://git-scm.com/book).

101. Make sure you have a [GitHub account](https://github.com/signup/free).

11−1. Make sure you are familiar with: [Idris](https://eb.host.cs.st-andrews.ac.uk/writings/idris-tutorial.pdf).

11+1. Make sure you are familiar with: [Idris](http://eb.host.cs.st-andrews.ac.uk/writings/idris-tutorial.pdf).

121. Make sure you can install Idris:

13 * [Mac OS X](https://github.com/idris-lang/Idris-dev/wiki/Idris-on-OS-X-using-Homebrew)

14 * [Ubuntu](https://github.com/idris-lang/Idris-dev/wiki/Idris-on-Ubuntu)

@@ -72,7 +72,7 @@ We do not want you wasting your time nor duplicating somebody's work!

72

73## Making Changes

74

75−Idris developers and hackers try to adhere to something similar to the [successful git branching model](https://nvie.com/posts/a-successful-git-branching-model/).

75+Idris developers and hackers try to adhere to something similar to the [successful git branching model](http://nvie.com/posts/a-successful-git-branching-model/).

76The steps are described below.

77

78### New contributors

@@ -175,8 +175,8 @@ To help increase the chance of your pull request being accepted:

175* Idris FAQs: [Official](https://idris.readthedocs.io/en/latest/faq/faq.html); [Unofficial](https://github.com/idris-lang/Idris-dev/wiki/Unofficial-FAQ);

176* [Idris Manual](https://github.com/idris-lang/Idris-dev/wiki/Manual);

177* [Idris Tutorial](https://idris.readthedocs.io/en/latest/tutorial/index.html);

178−* [Idris News](https://www.idris-lang.org/news/);

178+* [Idris News](http://www.idris-lang.org/news/);

179−* [other Idris docs](https://www.idris-lang.org/documentation/).

179+* [other Idris docs](http://www.idris-lang.org/documentation/).

180* [Using Pull Requests](https://help.github.com/articles/using-pull-requests)

181* [General GitHub Documentation](https://help.github.com/).

182

INSTALL.md+2−11

@@ -130,8 +130,7 @@ PKG_CONFIG_PATH=/usr/local/opt/libffi/lib/pkgconfig stack build

130## Issue with GHC on Ubuntu/Fedora

131

132There is an upstream issue with GHC on some Ubuntu and Fedora machines.

133−The issue is that for GHC versions greater than 8.4.X linking to libFFI uses the version of libFFI shipped with GHC, instead of the system version.

133+The issue is that for GHC versions greater than 8.4.X linking to libFFI is broken.

134−

135See the following GHC issue page for more information:

134See the following GHC issue page for more information:

136

135

137 <https://gitlab.haskell.org/ghc/ghc/issues/15397>

136 <https://gitlab.haskell.org/ghc/ghc/issues/15397>

@@ -142,12 +141,4 @@ Specifically, one will see an error message along the lines of:

142

141

143> error while loading shared libraries: libffi.so.7: cannot open shared object file: No such file or directory

142> error while loading shared libraries: libffi.so.7: cannot open shared object file: No such file or directory

144

143

145−A workround for this bug is to override the used libffi version (this is what we use on CI):

144+We have supplied an alternative stack configuration file (`stack-alt.yaml`) that will use a version of GHC prior to the upstream issue being introduced.

146−

147−```bash

148−export LD_PRELOAD=/opt/ghc/${GHCVER}/lib/ghc-${GHCVER}/rts/libffi.so.7

149−```

150−

151−## GHC 8.6

152−

153−For reasons that haven't been investigated building the Idris compiler with GHC 8.6 leads to a compiler which doesn't pass test.

Makefile+4−4

@@ -30,15 +30,15 @@ stylize:

30 ./stylize.sh

31

32test_c:

33− $(CABAL) v1-test $(ARGS) --test-options \

33+ $(CABAL) test $(ARGS) --test-options \

34 "$(TEST-ARGS) --rerun-update +RTS -N$(TEST-JOBS) -RTS"

35

36test_js:

37− $(CABAL) v1-test $(ARGS) --test-options \

37+ $(CABAL) test $(ARGS) --test-options \

38 "$(TEST-ARGS) --node --rerun-update +RTS -N$(TEST-JOBS) -RTS"

39

40test_update:

41− $(CABAL) v1-test $(ARGS) --test-options \

41+ $(CABAL) test $(ARGS) --test-options \

42 "$(TEST-ARGS) --accept +RTS -N$(TEST-JOBS) -RTS"

43

44test_clean:

@@ -56,7 +56,7 @@ linecount:

56

57#Note: this doesn't yet link to Hackage properly

58doc: dist/setup-config

59− $(CABAL) v1-haddock --hyperlink-source --html --hoogle --html-location="https://hackage.haskell.org/packages/archive/\$$pkg/latest/doc/html" --haddock-options="--title Idris"

59+ $(CABAL) haddock --hyperlink-source --html --hoogle --html-location="http://hackage.haskell.org/packages/archive/\$$pkg/latest/doc/html" --haddock-options="--title Idris"

60

61lib_doc:

62 $(MAKE) -C libs IDRIS=../../dist/build/idris/idris doc

README.md+4−7

@@ -4,11 +4,11 @@

4[![Appveyor build](https://ci.appveyor.com/api/projects/status/xi8yu81oy1134g7o/branch/master?svg=true)](https://ci.appveyor.com/project/idrislang/idris-dev)

5[![Documentation Status](https://readthedocs.org/projects/idris/badge/?version=latest)](https://readthedocs.org/projects/idris/?badge=latest)

6[![Hackage](https://img.shields.io/hackage/v/idris.svg)](https://hackage.haskell.org/package/idris)

7−[![Stackage LTS](https://stackage.org/package/idris/badge/lts)](https://stackage.org/lts/package/idris)

7+[![Stackage LTS](http://stackage.org/package/idris/badge/lts)](http://stackage.org/lts/package/idris)

8−[![Stackage Nightly](https://stackage.org/package/idris/badge/nightly)](https://stackage.org/nightly/package/idris)

8+[![Stackage Nightly](http://stackage.org/package/idris/badge/nightly)](http://stackage.org/nightly/package/idris)

9[![IRC](https://img.shields.io/badge/IRC-%23idris-1e72ff.svg?style=flat)](https://www.irccloud.com/invite?channel=%23idris&hostname=irc.freenode.net&port=6697&ssl=1)

10

11−Idris (https://idris-lang.org/) is a general-purpose functional programming

11+Idris (http://idris-lang.org/) is a general-purpose functional programming

12language with dependent types.

13

14## Installation Guides.

@@ -28,7 +28,7 @@ Idris has support for external code generators. Supplied with the distribution

28is a C code generator to compile executables, and a JavaScript code generator

29with support for node.js and browser JavaScript.

30

31−More information about [code generators can be found on the wiki](https://idris.readthedocs.io/en/latest/reference/codegen.html).

31+More information about [code generators can be found on the wiki](http://idris.readthedocs.io/en/latest/reference/codegen.html).

32

33## More Information

34

@@ -44,6 +44,3 @@ where some interesting projects are being hosted.

44

45For those interested in contributing to Idris directly we kindly ask that

46prospective developers please consult the [Contributing Guide](CONTRIBUTING.md) first.

47−

48−[Idris 2](https://github.com/edwinb/Idris2) is an early preview of the next generation

49−of Idris, implemented in Idris.

Setup.hs+33

@@ -215,6 +215,36 @@ idrisConfigure _ flags pkgdesc local = do

215 autogenComponentModulesDir lbi _ = autogenModulesDir lbi

216#endif

217

218+idrisPreSDist args flags = do

219+ let dir = S.fromFlag (S.sDistDirectory flags)

220+ let verb = S.fromFlag (S.sDistVerbosity flags)

221+ generateVersionModule verb "src" True

222+ generateBuildFlagsModule verb "src" []

223+ generateTargetModule verb "src" "./libs"

224+ generateToolchainModule verb "src" Nothing

225+ preSDist simpleUserHooks args flags

226+

227+idrisSDist sdist pkgDesc bi hooks flags = do

228+ pkgDesc' <- addGitFiles pkgDesc

229+ sdist pkgDesc' bi hooks flags

230+ where

231+ addGitFiles :: PackageDescription -> IO PackageDescription

232+ addGitFiles pkgDesc = do

233+ files <- gitFiles

234+ return $ pkgDesc { extraSrcFiles = extraSrcFiles pkgDesc ++ files}

235+ gitFiles :: IO [FilePath]

236+ gitFiles = liftM lines (readProcess "git" ["ls-files"] "")

237+

238+idrisPostSDist args flags desc lbi = do

239+ Control.Exception.catch (do let file = "src" </> "Version_idris" Px.<.> "hs"

240+ let targetFile = "src" </> "Target_idris" Px.<.> "hs"

241+ putStrLn $ "Removing generated modules:\n "

242+ ++ file ++ "\n" ++ targetFile

243+ removeFile file

244+ removeFile targetFile)

245+ (\e -> let e' = (e :: SomeException) in return ())

246+ postSDist simpleUserHooks args flags desc lbi

247+

218#if !(MIN_VERSION_Cabal(2,0,0))

248#if !(MIN_VERSION_Cabal(2,0,0))

219rewriteFileEx :: Verbosity -> FilePath -> String -> IO ()

249rewriteFileEx :: Verbosity -> FilePath -> String -> IO ()

220rewriteFileEx _ = rewriteFile

250rewriteFileEx _ = rewriteFile

@@ -323,5 +353,8 @@ main = defaultMainWithHooks $ simpleUserHooks

323 , postInst = \_ flags pkg local ->

353 , postInst = \_ flags pkg local ->

324 idrisInstall (S.fromFlag $ S.installVerbosity flags)

354 idrisInstall (S.fromFlag $ S.installVerbosity flags)

325 NoCopyDest pkg local

355 NoCopyDest pkg local

356+ , preSDist = idrisPreSDist

357+ , sDistHook = idrisSDist (sDistHook simpleUserHooks)

358+ , postSDist = idrisPostSDist

326 , testHook = idrisTestHook

359 , testHook = idrisTestHook

327 }

360 }

appveyor.yml+3−3

@@ -1,17 +1,17 @@

1version: 1.0.{build}

2init:

3- ps: >-

4− choco install cabal --no-progress

4+ choco install cabal --version=2.4.1.0 --no-progress

5

6 mkdir C:\ghc

7

8− Invoke-WebRequest "https://downloads.haskell.org/~ghc/8.8.2/ghc-8.8.2-x86_64-unknown-mingw32.tar.xz" -OutFile C:\ghc\ghc.tar.xz -UserAgent "Curl"

8+ Invoke-WebRequest "http://downloads.haskell.org/~ghc/8.4.3/ghc-8.4.3-x86_64-unknown-mingw32.tar.xz" -OutFile C:\ghc\ghc.tar.xz -UserAgent "Curl"

9

10 7z x C:\ghc\ghc.tar.xz -oC:\ghc

11

12 7z x C:\ghc\ghc.tar -oC:\ghc

13

14− $env:PATH="$env:PATH;c:\ghc\ghc-8.8.2\bin;$HOME\AppData\Roaming\cabal\bin"

14+ $env:PATH="$env:PATH;c:\ghc\ghc-8.4.3\bin;$HOME\AppData\Roaming\cabal\bin"

15

16 cabal v1-update

17

azure-pipelines.yml+1−1

@@ -68,7 +68,7 @@ jobs:

68 choco install 7zip.portable -y --no-progress

69 choco install msys2 -y --no-progress --params "/InstallDir=C:/msys64/"

70 mkdir C:\ghc

71− Invoke-WebRequest "https://downloads.haskell.org/~ghc/8.4.3/ghc-8.4.3-x86_64-unknown-mingw32.tar.xz" -OutFile C:\ghc\ghc.tar.xz -UserAgent "Curl"

71+ Invoke-WebRequest "http://downloads.haskell.org/~ghc/8.4.3/ghc-8.4.3-x86_64-unknown-mingw32.tar.xz" -OutFile C:\ghc\ghc.tar.xz -UserAgent "Curl"

72 7z x C:\ghc\ghc.tar.xz -oC:\ghc

73 7z x C:\ghc\ghc.tar -oC:\ghc

74 displayName: "Setting up environment"

benchmarks/pidigits/pidigits.idr+1−1

@@ -3,7 +3,7 @@ import Data.Vect

3

4{- Toy program that outputs the n first digits of Pi.

5

6− Inspired from https://www.haskell.org/haskellwiki/Shootout/Pidigits.

6+ Inspired from http://www.haskell.org/haskellwiki/Shootout/Pidigits.

7 The original ns and str lazy lists have been replaced by strict functions.

8

9 Memory usage seems to be excessive. One of the branches of str is tail recursive, and

docs/LICENSE+1−1

@@ -7,4 +7,4 @@ rights to Documentation for Idris.

7

8More information concerning the CC0 can be found online at:

9

10− https://creativecommons.org/publicdomain/zero/1.0/

10+ http://creativecommons.org/publicdomain/zero/1.0/

docs/Makefile+1−1

@@ -9,7 +9,7 @@ BUILDDIR = _build

9

10# User-friendly check for sphinx-build

11ifeq ($(shell which $(SPHINXBUILD) >/dev/null 2>&1; echo $$?), 1)

12−$(error The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed, then set the SPHINXBUILD environment variable to point to the full path of the '$(SPHINXBUILD)' executable. Alternatively you can add the directory with the executable to your PATH. If you don't have Sphinx installed, grab it from https://www.sphinx-doc.org/)

12+$(error The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed, then set the SPHINXBUILD environment variable to point to the full path of the '$(SPHINXBUILD)' executable. Alternatively you can add the directory with the executable to your PATH. If you don't have Sphinx installed, grab it from http://sphinx-doc.org/)

13endif

14

15# Internal variables.

docs/README.md+3−3

@@ -1,7 +1,7 @@

1# Documentation for the Idris Language.

2

3

4−This manual has been prepared using ReStructured Text and the [Sphinx Documentation Generator](https://www.sphinx-doc.org) for future inclusion on [Read The Docs](https://www.readthedocs.org).

4+This manual has been prepared using ReStructured Text and the [Sphinx Documentation Generator](http://sphinx-doc.org) for future inclusion on [Read The Docs](http://www.readthedocs.org).

5

6## Dependencies

7

@@ -12,7 +12,7 @@ To build the manual the following dependencies must be met. We assume that you h

12Python should be installed by default on most systems.

13Sphinx can be installed either through your hosts package manager or using pip/easy_install.

14

15−*Note* [ReadTheDocs](https://www.readthedocs.org) works with Sphinx

15+*Note* [ReadTheDocs](http://www.readthedocs.org) works with Sphinx

16 `v1.2.2`. If you install a more recent version of sphinx then

17 'incorrectly' marked up documentation may get passed the build system

18 of readthedocs and be ignored. In the past we had several code-blocks

@@ -45,7 +45,7 @@ rights to Documentation for Idris.

45

46More information concerning the CC0 can be found online at:

47

48− https://creativecommons.org/publicdomain/zero/1.0/

48+ http://creativecommons.org/publicdomain/zero/1.0/

49

50

51When contributing material to the manual please bear in mind that the work will be licensed as above.

docs/_static/theme_overrides.cssdeleted−13

@@ -1,13 +0,0 @@

1−/* override table width restrictions */

2−@media screen and (min-width: 767px) {

3−

4− .wy-table-responsive table td {

5− /* !important prevents the common CSS stylesheets from overriding

6− this as on RTD they are loaded after this stylesheet */

7− white-space: normal !important;

8− }

9−

10− .wy-table-responsive {

11− overflow: visible !important;

12− }

13−}

docs/conf.py+2−9

@@ -51,7 +51,7 @@ master_doc = 'index'

51

52# General information about the project.

53project = u'Idris'

54−copyright = u'2017-2020, The Idris Community'

54+copyright = u'2017, The Idris Community'

55author = u'The Idris Community'

56

57# The version info for the project you're documenting, acts as replacement for

@@ -151,12 +151,6 @@ if not on_rtd: # only import and set the theme if we're building docs locally

151# so a file named "default.css" will overwrite the builtin "default.css".

152html_static_path = ['_static']

153

154−html_context = {

155− 'css_files': [

156− '_static/theme_overrides.css', # override wide tables in RTD theme

157− ],

158− }

159−

160# Add any extra paths that contain custom files (such as robots.txt or

154# Add any extra paths that contain custom files (such as robots.txt or

161# .htaccess) here, relative to this directory. These files are copied

155# .htaccess) here, relative to this directory. These files are copied

162# directly to the root of the documentation.

156# directly to the root of the documentation.

@@ -251,7 +245,6 @@ latex_elements = {

251# Additional stuff for the LaTeX preamble.

245# Additional stuff for the LaTeX preamble.

252'preamble': r'''

246'preamble': r'''

253\usepackage{lmodern}

247\usepackage{lmodern}

254−\usepackage{textalpha}

255\usepackage[T1]{fontenc}

248\usepackage[T1]{fontenc}

256\usepackage[utf8x]{inputenc}

249\usepackage[utf8x]{inputenc}

257\usepackage{titlesec}

250\usepackage{titlesec}

@@ -301,7 +294,7 @@ latex_elements = {

301# (source start file, target name, title,

294# (source start file, target name, title,

302# author, documentclass [howto, manual, or own class]).

295# author, documentclass [howto, manual, or own class]).

303latex_documents = [

296latex_documents = [

304− # (master_doc, 'idris.tex', u'Documentation for the Idris Language', u'The Idris Community', 'report')

297+ ('index', 'idris-documentation-complete.tex', u'Documentation for the Idris Language', u'The Idris Community', 'report'),

305 ('tutorial/index', 'idris-tutorial.tex', u'The Idris Tutorial', u'The Idris Community', 'howto'),

298 ('tutorial/index', 'idris-tutorial.tex', u'The Idris Tutorial', u'The Idris Community', 'howto'),

306]

299]

307

300

docs/effects/conclusions.rst+1−1

@@ -51,7 +51,7 @@ foundations are also well-studied see [5]_, [6]_, [7]_, [8]_.

51 Programming Languages and Systems (APLAS '09), Zhenjiang Hu

52 (Ed.). Springer-Verlag, Berlin, Heidelberg,

53 95-110. DOI=10.1007/978-3-642-10672-9_9

54− https://link.springer.com/chapter/10.1007%2F978-3-642-10672-9_9

54+ http://link.springer.com/chapter/10.1007%2F978-3-642-10672-9_9

55

56

57.. [4] Ohad Kammar, Sam Lindley, and Nicolas Oury. 2013. Handlers in

docs/effects/depeff.rst+7−16

@@ -153,21 +153,12 @@ file management follows a resource usage protocol with the following

153

154- When a file is closed, its handle should no longer be used

155

156−These requirements can be expressed formally by creating a

156+These requirements can be expressed formally in , by creating a

157``FILE_IO`` effect parameterised over a file handle state, which is

158either empty, open for reading, or open for writing. The ``FILE_IO``

159−effect’s definition is given below.

159+effect’s definition is given below. Note that this

160−

161−.. note::

162− This effect is mainly for illustrative purposes.

160+effect is mainly for illustrative purposes—typically we would also like

163− Typically we would also like to support random access files and

164− better reporting of error conditions.

161+to support random access files and better reporting of error conditions.

165−

166− Moreover, the ``FILE`` effect in the ``Effect.File`` module of

167− the ``effects`` library uses slightly more complicated types to

168− support erroneous behaviour of each function and to support more

169− compilcated modes of opening, like for reading **and** writing,

170− appending or truncating.

171

162

172.. code-block:: idris

163.. code-block:: idris

173

164

@@ -182,7 +173,7 @@ effect’s definition is given below.

182

173

183 open : (fname : String)

174 open : (fname : String)

184 -> (m : Mode)

175 -> (m : Mode)

185− -> Eff Bool [FILE_IO ()]

176+ -> Eff Bool [FILE_IO ()]

186 (\res => [FILE_IO (case res of

177 (\res => [FILE_IO (case res of

187 True => OpenFile m

178 True => OpenFile m

188 False => ())])

179 False => ())])

@@ -200,7 +191,7 @@ In particular, consider the type of ``open``:

200

191

201 open : (fname : String)

192 open : (fname : String)

202 -> (m : Mode)

193 -> (m : Mode)

203− -> Eff Bool [FILE_IO ()]

194+ -> Eff Bool [FILE_IO ()]

204 (\res => [FILE_IO (case res of

195 (\res => [FILE_IO (case res of

205 True => OpenFile m

196 True => OpenFile m

206 False => ())])

197 False => ())])

@@ -216,7 +207,7 @@ we continue the protocol accordingly.

216

207

217 readFile : Eff (List String) [FILE_IO (OpenFile Read)]

208 readFile : Eff (List String) [FILE_IO (OpenFile Read)]

218 readFile = readAcc [] where

209 readFile = readAcc [] where

219− readAcc : List String -> Eff (List String) [FILE_IO (OpenFile Read)]

210+ readAcc : List String -> Eff (List String) [FILE_IO (OpenFile Read)]

220 readAcc acc = if (not !eof)

211 readAcc acc = if (not !eof)

221 then readAcc (!readLine :: acc)

212 then readAcc (!readLine :: acc)

222 else pure (reverse acc)

213 else pure (reverse acc)

docs/effects/index.rst+1−1

@@ -25,7 +25,7 @@ A tutorial on the `Effects` package in `Idris`.

25 Idris Community* has waived all copyright and related or neighbouring

26 rights to Documentation for Idris.

27

28− More information concerning the CC0 can be found online at: https://creativecommons.org/publicdomain/zero/1.0/

28+ More information concerning the CC0 can be found online at: http://creativecommons.org/publicdomain/zero/1.0/

29

30.. toctree::

31 :maxdepth: 1

docs/effects/introduction.rst+2−3

@@ -3,7 +3,7 @@ Introduction

3************

4

5Pure functional languages with dependent types such as `Idris

6−<https://www.idris-lang.org/>`_ support reasoning about programs directly

6+<http://www.idris-lang.org/>`_ support reasoning about programs directly

7in the type system, promising that we can *know* a program will run

8correctly (i.e. according to the specification in its type) simply

9because it compiles. Realistically, though, things are not so simple:

@@ -17,8 +17,7 @@ exceptions, and verified resource management.

17This tutorial assumes familiarity with pure programming in Idris,

18as described in Sections 1–6 of the main tutorial [1]_. The examples

19presented are tested with Idris and can be found in the

20−examples directory of the Idris repository. The ``-p effects`` flag

20+examples directory of the Idris repository.

21−is needed when starting Idris.

22

21

23Consider, for example, the following introductory function which

22Consider, for example, the following introductory function which

24illustrates the kind of properties which can be expressed in the type

23illustrates the kind of properties which can be expressed in the type

docs/effects/summary.rst+23−23

@@ -43,16 +43,16 @@ FILE\_IO

43 data OpenFile : Mode -> Type

44

45 open : (fname : String)

46− -> (m : Mode)

46+ -> (m : Mode)

47− -> Eff Bool [FILE_IO ()]

47+ -> Eff Bool [FILE_IO ()]

48− (\res => [FILE_IO (case res of

48+ (\res => [FILE_IO (case res of

49− True => OpenFile m

49+ True => OpenFile m

50− False => ())])

50+ False => ())])

51 close : Eff () [FILE_IO (OpenFile m)] [FILE_IO ()]

52

53− readLine : Eff String [FILE_IO (OpenFile Read)]

53+ readLine : Eff String [FILE_IO (OpenFile Read)]

54 writeLine : String -> Eff () [FILE_IO (OpenFile Write)]

55− eof : Eff Bool [FILE_IO (OpenFile Read)]

55+ eof : Eff Bool [FILE_IO (OpenFile Read)]

56

57 Handler FileIO IO where { ... }

58

@@ -69,9 +69,9 @@ RND

69

70 RND : EFFECT

71

72− srand : Integer -> Eff () [RND]

72+ srand : Integer -> Eff m () [RND]

73− rndInt : Integer -> Integer -> Eff Integer [RND]

73+ rndInt : Integer -> Integer -> Eff m Integer [RND]

74− rndFin : (k : Nat) -> Eff (Fin (S k)) [RND]

74+ rndFin : (k : Nat) -> Eff m (Fin (S k)) [RND]

75

76 Handler Random m where { ... }

77

@@ -86,7 +86,7 @@ SELECT

86

87 SELECT : EFFECT

88

89− select : List a -> Eff a [SELECT]

89+ select : List a -> Eff m a [SELECT]

90

91 Handler Selection Maybe where { ... }

92 Handler Selection List where { ... }

@@ -102,10 +102,10 @@ STATE

102

103 STATE : Type -> EFFECT

104

105− get : Eff x [STATE x]

105+ get : Eff m x [STATE x]

106− put : x -> Eff () [STATE x]

106+ put : x -> Eff m () [STATE x]

107− putM : y -> Eff () [STATE x] [STATE y]

107+ putM : y -> Eff m () [STATE x] [STATE y]

108− update : (x -> x) -> Eff () [STATE x]

108+ update : (x -> x) -> Eff m () [STATE x]

109

110 Handler State m where { ... }

111

@@ -121,12 +121,12 @@ STDIO

121

122 STDIO : EFFECT

123

124− putChar : Char -> Eff () [STDIO]

124+ putChar : Handler StdIO m => Char -> Eff m () [STDIO]

125− putStr : String -> Eff () [STDIO]

125+ putStr : Handler StdIO m => String -> Eff m () [STDIO]

126− putStrLn : String -> Eff () [STDIO]

126+ putStrLn : Handler StdIO m => String -> Eff m () [STDIO]

127

128− getStr : Eff String [STDIO]

128+ getStr : Handler StdIO m => Eff m String [STDIO]

129− getChar : Eff Char [STDIO]

129+ getChar : Handler StdIO m => Eff m Char [STDIO]

130

131 Handler StdIO IO where { ... }

132 Handler StdIO (IOExcept a) where { ... }

@@ -144,9 +144,9 @@ SYSTEM

144

145 SYSTEM : EFFECT

146

147− getArgs : Eff (List String) [SYSTEM]

147+ getArgs : Handler System e => Eff e (List String) [SYSTEM]

148− time : Eff Int [SYSTEM]

148+ time : Handler System e => Eff e Int [SYSTEM]

149− getEnv : String -> Eff (Maybe String) [SYSTEM]

149+ getEnv : Handler System e => String -> Eff e (Maybe String) [SYSTEM]

150

151 Handler System IO where { ... }

152 Handler System (IOExcept a) where { ... }

docs/elaboratorReflection/elabReflection.rstdeleted−60

@@ -1,60 +0,0 @@

1−Extending Idris using Elaborator Reflection

2−===========================================

3−

4−Idris provides a mechanism to modify the language without having to recompile Idris itself. We can think of this in terms of metaprogramming or domain specific languages or just building in new capabilities.

5−

6−In order to extend the language we need to know something about how Idris is compiled. This page explains only what is needed to customise the elaboration. For more information about the compiler's implementation see `Edwin Brady's 2013 paper`_ and for customising the elaboration process see `Elaborator reflection: extending Idris in Idris`_ and `David Christiansen's PhD thesis`_.

7−

8−Compilation of Idris proceeds through a number of stages.

9−

10−- First, Idris is desugared by inserting placeholders for terms to be guessed by the compiler and replacing certain syntactic forms, such as do-notation, with the functions that implement them.

11−- Then, this desugared Idris is translated into a much simpler core language, called TT. This translation process is called elaboration.

12−- Finally, TT is type checked a second time to rule out errors, and then compiled into the target language.

13−

14−.. image:: ../image/idrisTopLevel.png

15− :width: 484px

16− :height: 147px

17− :alt: diagram illustrating these stages of Idris compilation

18−

19−TT is a core language which is syntactically very simple. This makes it easy for computers to process but very verbose and hard for humans to read. The Idris elaborator is written in Haskell using an elaboration library that was inspired by the tactics in interactive proof assistants such as Coq.

20−

21−.. list-table::

22−

23− * - There are some similarities with a proof assistant but in Idris the elaborator is an interpreter of Idris source in the elaboration monad, where each syntactic construct of Idris is interpreted as a sequence of tactics.

24− - .. image:: ../image/compareToProofAssist.png

25− :width: 206px

26− :height: 112px

27− :alt: diagram comparing elaboration with proof assistant

28−

29−The primitives in the elaboration library are not just useful for the implementors of Idris itself. They can also be used by authors of extensions to the compiler, using a mechanism known as elaborator reflection.

30−During elaboration TT (Raw) structure contains:

31−

32−- holes - placeholders for terms that have not yet been filled in.

33−- guesses - similar to let bindings, except with no reduction rule, so that elaboration programs can control the precise shape of terms that are under construction.

34−

35−For more information about holes and guesses see `Dependently Typed Functional Programs and their Proofs by McBride 1999`_.

36−

37−The following diagram is intended to illustrate a high level view of the tactics and how this eventually results in the TT language being generated. It is not necessary to understand the details at this stage. The intention is to help build up some intuition so that, when we get into the details, we can recognise how this fits into the big picture.

38−

39−.. image:: ../image/elabOverview.png

40− :width: 410px

41− :height: 282px

42− :alt: diagram illustrating overview of TT language being generated from tactics.

43−

44−As already mentioned the TT core language is kept syntactically very simple, for instance, here are the binders in TT with corresponding code and logic type validity rules:

45−

46−.. list-table::

47−

48− * - This diagram illustrates the basis of the compilation process in logic (in this case for binders). It is not necessary to be an expert logician to understand elaborator reflection. However, when learning about tactics, they may appear arbitrary without knowing some theory. For more information about this see `Edwin Brady's 2013 paper`_.

49− - .. image:: ../image/binders.png

50− :width: 310px

51− :height: 203px

52− :alt: diagram illustrating basis of code in logic

53−

54−.. target-notes::

55−.. _`Edwin Brady's 2013 paper`: https://eb.host.cs.st-andrews.ac.uk/drafts/impldtp.pdf

56−.. _`Elaborator reflection: extending Idris in Idris`: https://dl.acm.org/citation.cfm?doid=2951913.2951932

57−.. _`David Christiansen's PhD thesis`: https://davidchristiansen.dk/david-christiansen-phd.pdf

58−.. _`Dependently Typed Functional Programs and their Proofs by McBride 1999`: https://www.era.lib.ed.ac.uk/handle/1842/374

59−

60−

docs/elaboratorReflection/example1.rstdeleted−192

@@ -1,192 +0,0 @@

1−Elaborator Reflection - Identity Example

2−========================================

3−

4−.. list-table::

5−

6− * - This example of elaborator reflection steps through this metaprogram that generates the identity function:

7− - .. code-block:: idris

8−

9− %language ElabReflection

10−

11− idNat : Nat -> Nat

12− idNat = %runElab (do intro `{{x}}

13− fill (Var `{{x}})

14− solve)

15−

16−.. list-table::

17− :widths: 200 100

18−

19− * - At the beginning of executing the elaboration script, the initial state consists of a single hole of type Nat -> Nat.

20−

21− As a first approximation, the state consists of a term with holes in it, an indicator of which hole is focused, a queue of the next holes to focus on, and miscellaneous information like a source of fresh names. The intro tactic modifies this state, replacing the focused hole with a lambda and focusing on the lambda's body.

22− - .. image:: ../image/tree.png

23− :width: 119px

24− :height: 109px

25−

26−The following is a walkthough looking at the state after each tactic:

27−

28−.. list-table::

29−

30− * - Start with the type signature like this:

31− - .. code-block:: idris

32−

33− %language ElabReflection

34−

35− idNat : Nat -> Nat

36− idNat = %runElab (do

37−

38− * - In order to investigate how the program works this table shows the proof state at each stage as the tactics are applied. So here is the proof state at the start:

39− - .. image:: ../image/elabProofStateEx1_1.png

40− :width: 310px

41− :height: 115px

42−

43− * - This table shows the hole types and what they depend on. The aim is to illustrate the types by analogy with proofs, as a line with the premises above it and the conclusion below it.

44− - .. image:: ../image/elabLogicEx1_1.png

45− :width: 277px

46− :height: 15px

47−

48− * - The term is:

49− - ?{hole_0} ≈ ? {hole_2} . {hole_2} . {hole_0}

50−

51− * - It is possible to read the state from the script by calling getEnv, getGoal and getHoles.

52−

53− - The output of these calls contain structures with TT code. To show the results I hacked this: `my code`_. TT code is not really designed to be readable by humans, all the names are fully expanded, everything has a type down to universes (type of types). This is shown here to illustrate the information available.

54−

55− .. code-block:: idris

56−

57− getEnv=[]

58−

59− getGoal=(hole_2, __pi_arg:(Nat.["Nat", "Prelude"]:{

60− type constructor tag=8 number=0}.Type:U=(20:./Prelude/Nat.idr)->.

61− {name ref{type constructor tag=8 number=0}Nat.["Nat","Prelude"]:

62− Type:U=(20:./Prelude/Nat.idr)

63− })

64− })

65−

66− getHoles=[{hole_2},{hole_0}]

67−

68− * - getGuess

69− - error no guess

70−

71− * - Introduce a lambda binding around the current hole and focus on the body.

72− - intro \`{{x}}

73−

74− * - The state now looks like this:

75− - .. image:: ../image/elabProofStateEx1_2.png

76− :width: 312px

77− :height: 84px

78−

79− * - The hole types now looks like this:

80− - .. image:: ../image/elabLogicEx1_2.png

81− :width: 279px

82− :height: 26px

83−

84− * - The term now looks like this:

85− - ?{hole_0} ≈ λ x . ? {hole_2} . {hole_2} . {hole_0}

86−

87− * - Again we can check the state by calling getEnv, getGoal and getHoles: see `my code`_

88−

89− - .. code-block:: idris

90−

91− getEnv=[(x, {λ (Nat.["Nat", "Prelude"]:{

92− type constructor tag=8 number=0}).

93− Type:U=(20:./Prelude/Nat.idr)

94− })]

95−

96− getGoal=(hole_2, {name ref{type constructor tag=8 number=0}

97− Nat.["Nat","Prelude"]:Type:U=(20:./Prelude/Nat.idr)

98− })

99−

100− getHoles=[{hole_2},{hole_0}]

101−

102− * - getGuess

103− - error no guess

104−

105− * - Place a term into a hole, unifying its type

106− - fill (Var \`{{x}})

107−

108− * - The state still looks like this:

109− - .. image:: ../image/elabProofStateEx1_3.png

110− :width: 312px

111− :height: 57px

112−

113− * - The hole types now looks like this:

114− - .. image:: ../image/elabLogicEx1_3.png

115− :width: 290px

116− :height: 26px

117−

118− * - The term now looks like this:

119− - ?{hole_0} ≈ λ x . ?{hole_2} ≈ x . {hole_2} . {hole_0}

120−

121− * - Again we can check the state by calling getEnv, getGoal and getHoles: see `my code`_

122−

123− - .. code-block:: idris

124−

125− getEnv=[(x, {λ (Nat.["Nat", "Prelude"]:

126− {type constructor tag=8 number=0}).

127− Type:U=(20:./Prelude/Nat.idr)

128− })]

129−

130− getGoal=(hole_2, {name ref{type constructor tag=8 number=0}

131− Nat.["Nat","Prelude"]:Type:U=(20:./Prelude/Nat.idr)

132− })

133−

134− getHoles=[{hole_2}, {hole_0}]

135−

136− * - getGuess

137− - .. code-block:: idris

138−

139− {name ref bound x:

140− {name ref{type constructor tag=8 number=0}

141− Nat.["Nat","Prelude"]:Type:U=(20:./Prelude/Nat.idr)

142− }

143− }

144−

145− * - Substitute a guess into a hole.

146− - solve

147−

148− * - The hole types now looks like this:

149− - .. image:: ../image/elabLogicEx1_4.png

150− :width: 131px

151− :height: 14px

152−

153− * - The term now looks like this:

154− - ?{hole_0} ≈ λ x . x . {hole_0}

155−

156− * - getEnv

157−

158− getGoal

159−

160− getHoles

161−

162− - .. code-block:: idris

163−

164− getEnv=[]

165−

166− getGoal=(hole_0, __pi_arg:(Nat.["Nat", "Prelude"]:{

167− type constructor tag=8 number=0}.

168− Type:U=(20:./Prelude/Nat.idr)

169− ->.{name ref

170− {type constructor tag=8 number=0}

171− Nat.["Nat","Prelude"]:Type:U=(20:./Prelude/Nat.idr)

172− })

173− })

174−

175− getHoles=[{hole_0}]

176−

177− * - getGuess

178− - .. code-block:: idris

179−

180− x:({λ (Nat.["Nat", "Prelude"]:{

181− type constructor tag=8 number=0}).

182− Type:U=(20:./Prelude/Nat.idr)

183− }.{

184− name ref bound

185− x:{name ref {type constructor tag=8 number=0}

186− Nat.["Nat","Prelude"]:Type:U=(20:./Prelude/Nat.idr)

187− }

188− })

189− }

190−

191−.. target-notes::

192−.. _`my code`: https://github.com/martinbaker/Idris-dev/blob/uglyTTPrinter/libs/prelude/Language/Reflection/TTPrinter.idr

docs/elaboratorReflection/generatingData.rstdeleted−385

@@ -1,385 +0,0 @@

1−Generating Datatypes and Functions at Compile Time

2−==================================================

3−

4−Program elements, such as datatypes and functions can be constructed at compile-time in the Elab monad.

5−This can allow proofs to be generated for user defined types or it could allow types to be automatically generated to support user defined types.

6−An example is the code, from `Elaborator reflection: extending Idris in Idris`_, that automatically generates accessibility predicates using the Bove-Capretta method.

7−

8−Generating Datatypes

9−--------------------

10−

11−There are two main 'tactics' associated with generating datatypes:

12−

13−- declareDatatype

14−- defineDatatype

15−

16−Which declare and define the datatype as the names suggest.

17−

18−.. list-table::

19−

20− * - These 'tactics' and the data structures associated with them are listed in the tables later on this page, for now, here is a summary:

21− - .. image:: ../image/generateDatatype.png

22− :width: 332px

23− :height: 246px

24− :alt: diagram illustrating data structures associated with declareDatatype defineDatatype.

25−

26−.. list-table::

27−

28− * - As a first example, the following boolean-like type can be constructed. When the compiler has run it will be available to us as if we had compiled it in the usual way:

29− - .. code-block:: idris

30−

31− λΠ> :printdef Two

32− data Two : Type where

33− F : Two

34− T : Two

35−

36−This was generated by the following code:

37−

38−.. code-block:: idris

39−

40− module TwoDef

41− %language ElabReflection

42−

43− addTwo : Elab ()

44− addTwo = do let twoname : TTName = `{{TwoDef.Two}}

45− let F2 = `{{TwoDef.F}}

46− let T2 = `{{TwoDef.T}}

47− declareDatatype $ Declare twoname [] `(Type)

48− defineDatatype $ DefineDatatype twoname [

49− Constructor `{{F}} [] (Var `{{TwoDef.Two}}),

50− Constructor `{{T}} [] (Var `{{TwoDef.Two}})

51− ]

52−

53− %runElab addTwo

54−

55−.. list-table::

56−

57− * - The constructors T and F can be called as would be expected:

58− - .. code-block:: idris

59−

60− λΠ> F

61− F : Two

62− λΠ> T

63− T : Two

64−

65−Generating Functions

66−--------------------

67−

68−There are two main 'tactics' associated with generating functions:

69−

70−- declareType

71−- defineFunction

72−

73−Which declare and define the function as the names suggest.

74−

75−.. list-table::

76−

77− * - These 'tactics' and the data structures associated with them are listed in the tables later on this page, for now, here is a summary:

78− - .. image:: ../image/generateFunction.png

79− :width: 332px

80− :height: 246px

81− :alt: diagram illustrating data structures associated with function declare and define.

82−

83−Note: The left hand side (lhs) and right hand side (rhs) of FunClause typically is of type 'Raw'.

84−

85−.. list-table::

86−

87− * - Bound pattern variables are represented by 'PVar' binders:

88− This diagram shows an example of a possible Raw structure that might be used in a function definition.

89− - .. image:: ../image/generateFunction2.png

90− :width: 264px

91− :height: 239px

92− :alt: diagram illustrating data structures associated with functions.

93−

94−.. list-table::

95−

96− * - Some function definitions can now be added to the above datatype. This is what they will look like:

97− - .. code-block:: idris

98−

99− λΠ> :printdef perm1

100− perm1 : Two -> Two

101− perm1 F = F

102− perm1 T = T

103− λΠ> :printdef perm2

104− perm2 : Two -> Two

105− perm1 F = T

106− perm1 T = F

107−

108−This was generated with the following code:

109−

110−.. code-block:: idris

111−

112− let perm1 = `{{TwoDef.perm1}}

113− declareType (Declare perm1 [MkFunArg `{{code}} (Var twoname) Explicit NotErased] (Var twoname))

114− defineFunction $ DefineFun perm1 [

115− MkFunClause (RApp (Var perm1) (Var `{{TwoDef.F}})) (Var F2),

116− MkFunClause (RApp (Var perm1) (Var `{{TwoDef.T}})) (Var T2)

117− ]

118−

119− let perm2 = `{{TwoDef.perm2}}

120− declareType (Declare perm2 [MkFunArg `{{code}} (Var twoname) Explicit NotErased] (Var twoname))

121− defineFunction $ DefineFun perm2 [

122− MkFunClause (RApp (Var perm1) (Var `{{TwoDef.F}})) (Var T2),

123− MkFunClause (RApp (Var perm1) (Var `{{TwoDef.T}})) (Var F2)

124− ]

125−

126−.. list-table::

127−

128− * - This is what happens when we call the functions:

129− - .. code-block:: idris

130−

131− λΠ> perm1 F

132− F : Two

133− λΠ> perm1 T

134− T : Two

135− λΠ> perm2 F

136− T : Two

137− λΠ> perm2 T

138− F : Two

139−

140−So far these datatypes and functions could have been written, statically, in the usual way. However, it is possible to imagine situations where we may need a lot of functions to be generated automatically at compile time. For example, if we extend this Boolean datatype to a datatype with more simple constructors (a finite set), we could generate a function for every possible permutation of that datatype back to itself.

141−

142−A Different Example which has Type Parameters

143−---------------------------------------------

144−

145−.. list-table::

146−

147− * - Here is an example of a datatype with type parameters:

148− - .. code-block:: idris

149−

150− data N : Nat -> Type where

151− MkN : N x

152− MkN' : (x : Nat) -> N (S x)

153−

154−This was produced by the following code:

155−

156−.. code-block:: idris

157−

158− module DataDef

159− %language ElabReflection

160−

161− addData : Elab ()

162− addData = do

163− let dataname : TTName = `{{DataDef.N}}

164− declareDatatype $ Declare dataname [MkFunArg `{{n}} `(Nat) Explicit NotErased] `(Type)

165− defineDatatype $ DefineDatatype dataname [

166− Constructor `{{MkN}} [MkFunArg `{{x}} `(Nat) Implicit NotErased]

167− (RApp (Var dataname) (Var `{{x}})),

168− Constructor `{{MkN'}} [MkFunArg `{{x}} `(Nat) Explicit NotErased]

169− (RApp (Var dataname) (RApp (Var `{S}) (Var `{{x}})))

170− ]

171−

172− %runElab addData

173−

174−So this declares and defines the following data structure 'N' with a constructor 'MkN' which can have an implicit or an explicit Nat argument. Which can be used like this:

175−

176−.. code-block:: idris

177−

178− λΠ> :t N

179− N : Nat -> Type

180− λΠ> N 2

181− N 2 : Type

182− λΠ> N 0

183− N 0 : Type

184− λΠ> :t MkN

185− MkN : N x

186−

187−Table of 'tactics' for Generating Data and Functions

188−----------------------------------------------------

189−

190−These are the functions that we can use to create data and functions in the Elab monad:

191−

192−.. list-table::

193− :widths: 10 30

194− :stub-columns: 1

195−

196− * - declareType

197− - Add a type declaration to the global context.

198−

199− Signature:

200−

201− declareType : TyDecl -> Elab ()

202− * - defineFunction

203− - Define a function in the global context. The function must have already been declared, either in ordinary Idris code or using `declareType`.

204−

205− Signature:

206−

207− defineFunction : FunDefn Raw -> Elab ()

208−

209− * - declareDatatype

210− - Declare a datatype in the global context. This step only establishes the type constructor; use `defineDatatype` to give it constructors.

211−

212− Signature:

213−

214− declareDatatype : TyDecl -> Elab ()

215−

216− * - defineDatatype

217− - Signature:

218−

219− defineDatatype : DataDefn -> Elab ()

220−

221− * - addImplementation

222− - Register a new implementation for interface resolution.

223−

224− Arguments:

225−

226− - ifaceName the name of the interface for which an implementation is being registered

227− - implName the name of the definition to use in implementation search

228−

229− Signature:

230−

231− addImplementation : (ifaceName, implName : TTName) -> Elab ()

232−

233− * - isTCName

234− - Determine whether a name denotes an interface.

235−

236− Arguments:

237−

238− - name - a name that might denote an interface.

239−

240− Signature:

241−

242− isTCName : (name : TTName) -> Elab Bool

243−

244−Table of Datatypes Associated with Generating Data and Functions

245−----------------------------------------------------------------

246−

247−The above functions use the following data/records:

248−

249−.. list-table::

250− :widths: 10 30

251− :stub-columns: 1

252−

253− * - Plicity

254− - How an argument is provided in high-level Idris

255−

256− .. code-block:: idris

257−

258− data Plicity=

259− ||| The argument is directly provided at the application site

260− Explicit |

261− ||| The argument is found by Idris at the application site

262− Implicit |

263− ||| The argument is solved using interface resolution

264− Constraint

265−

266− * - FunArg

267− - Function arguments

268−

269− These are the simplest representation of argument lists, and are used for functions. Additionally, because a FunArg provides enough

270− information to build an application, a generic type lookup of a top-level identifier will return its FunArgs, if applicable.

271−

272− .. code-block:: idris

273−

274− record FunArg where

275− constructor MkFunArg

276− name : TTName

277− type : Raw

278− plicity : Plicity

279− erasure : Erasure

280−

281− * - TyConArg

282− - Type constructor arguments

283−

284− Each argument is identified as being either a parameter that is

285−

286− consistent in all constructors, or an index that varies based on

287−

288− which constructor is selected.

289−

290− .. code-block:: idris

291−

292− data TyConArg =

293− ||| Parameters are uniform across the constructors

294− TyConParameter FunArg |

295− ||| Indices are not uniform

296− TyConIndex FunArg

297−

298− * - TyDecl

299− - A type declaration for a function or datatype

300−

301− .. code-block:: idris

302−

303− record TyDecl where

304− constructor Declare

305− ||| The fully-qualified name of the function or datatype being declared.

306− name : TTName

307− ||| Each argument is in the scope of the names of previous arguments.

308− arguments : List FunArg

309− ||| The return type is in the scope of all the argument names.

310− returnType : Raw

311−

312− * - FunClause

313− - A single pattern-matching clause

314−

315− .. code-block:: idris

316−

317− data FunClause : Type -> Type where

318− MkFunClause : (lhs, rhs : a) -> FunClause a

319− MkImpossibleClause : (lhs : a) -> FunClause a

320−

321− * - FunDefn

322− - A reflected function definition.

323−

324− .. code-block:: idris

325−

326− record FunDefn a where

327− constructor DefineFun

328− name : TTName

329− clauses : List (FunClause a)

330−

331− * - ConstructorDefn

332− - A constructor to be associated with a new datatype.

333−

334− .. code-block:: idris

335−

336− record ConstructorDefn where

337− constructor Constructor

338− ||| The name of the constructor. The name must _not_ be qualified -

339− ||| that is, it should begin with the `UN` or `MN` constructors.

340− name : TTName

341− ||| The constructor arguments. Idris will infer which arguments are

342− ||| datatype parameters.

343− arguments : List FunArg

344− ||| The specific type constructed by the constructor.

345− returnType : Raw

346−

347− * - DataDefn

348− - A definition of a datatype to be added during an elaboration script.

349−

350− .. code-block:: idris

351−

352− record DataDefn where

353− constructor DefineDatatype

354− ||| The name of the datatype being defined. It must be

355− ||| fully-qualified, and it must have been previously declared as a

356− ||| datatype.

357− name : TTName

358− ||| A list of constructors for the datatype.

359− constructors : List ConstructorDefn

360−

361− * - CtorArg

362− - CtorParameter

363−

364− .. code-block:: idris

365−

366− data CtorArg = CtorParameter FunArg | CtorField FunArg

367−

368− * - Datatype

369− - A reflected datatype definition

370−

371− .. code-block:: idris

372−

373− record Datatype where

374− constructor MkDatatype

375− ||| The name of the type constructor

376− name : TTName

377− ||| The arguments to the type constructor

378− tyConArgs : List TyConArg

379− ||| The result of the type constructor

380− tyConRes : Raw

381− ||| The constructors for the family

382− constructors : List (TTName, List CtorArg, Raw)</td>

383−

384−.. target-notes::

385−.. _`Elaborator reflection: extending Idris in Idris`: https://dl.acm.org/citation.cfm?doid=2951913.2951932

docs/elaboratorReflection/holes.rstdeleted−196

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1−Elaborator Reflection - Holes

2−=============================

3−

4−The process of doing proofs and elaborator reflection tends to involve stating with a desired conclusion and working back to known premises. This often needs intermediate sub-goals which may only be partially solved, these are encoded using 'holes' and 'guesses'.

5−

6−* A hole is a term (an expression - a chunk of code) which is yet to be determined. We do have information about its type (this process tends to be type driven).

7−* A guess is like a hole that is not yet bound.

8−

9−The theory around this was developed in `Dependently Typed Functional Programs and their Proofs by McBride 1999`_.

10−

11−Notation for Holes and Guesses

12−------------------------------

13−

14−There is a notation used in the McBride 1999 thesis which is adapted for the TT language. When working on elaborator reflection it is useful to know this notation, for instance when reading the output of the 'debug' tactic.

15−

16−* A focused hole is notated like this ?x:t . t

17−* A guess is notated like this ?x ≈ t:t . t

18−

19−The following example shows how this is used:

20−

21−Simple Example

22−--------------

23−

24−Start with a code file that just contains:

25−

26−.. code-block:: idris

27−

28− %language ElabReflection

29−

30− testFn : Nat

31− testFn = %runElab (do debug {a = ()})

32−

33−when this is loaded the following is displayed:

34−

35−.. code-block:: idris

36−

37− Holes:

38− ----------------------------------

39− {hole_2} : Prelude.Nat.Nat

40−

41− ----------------------------------

42− {hole_0} : Prelude.Nat.Nat

43−

44− Term:

45− ?{hole_0} ≈ ? {hole_2} . {hole_2} . {hole_0}

46−

47−This shows information about the state when debug is encountered, during tactic execution, which allows us to investigate what is happening at each stage.

48−

49−* The "Holes" part shows the types of the holes and the local context of each

50−* The "Term" part shows where these holes are in the expression being constructed.

51−

52−So starting with the "Term" part we have.

53−

54−.. code-block:: idris

55−

56− ?{hole_0} ≈ ? {hole_2} . {hole_2} . {hole_0}

57−

58−.. sidebar:: attack tactic

59−

60− This kind of thing tends to arise from "attack", which helps keep binding forms in order.

61−

62−The meaning of this is not immediately apparent so it helps to add some parentheses to make the structure clearer:

63−

64−.. code-block:: idris

65−

66− (?{hole_0} ≈ (? {hole_2} . {hole_2}) . {hole_0})

67−

68−First lets look at the inner part:

69−

70−.. code-block:: idris

71−

72− ? {hole_2} . {hole_2}

73−

74−We can substitute in the type from the "Holes" part:

75−

76−.. code-block:: idris

77−

78− ? {hole_2}:Nat . {hole_2}:Nat

79−

80−So we are looking for a hole of type Nat and all we know is it has type Nat.

81−

82−Going back to the full term, the above is wrapped in a guess, so it means: 'a guess that is itself a hole'.

83−

84−Since the elaborator does not have any further information it has to be given a value:

85−

86−.. code-block:: idris

87−

88− %language ElabReflection

89−

90− testFn : Nat

91− testFn = %runElab (do fill `(Z)

92− debug {a = ()}

93− solve)

94−

95−Now we have a guess for hole_2 which is itself a guess for hole_0:

96−

97−.. code-block:: idris

98−

99− ?{hole_0} ≈ ?{hole_2} ≈ Prelude.Nat.Z . {hole_2} . {hole_0}

100−

101−The guesses can be accepted by calling the 'solve' tactic.

102−

103−Example Showing Patterns

104−------------------------

105−

106−In this next example a parameter 'n' has been added to the function. This allows us to see how patterns are used. Starting with this file:

107−

108−.. code-block:: idris

109−

110− %language ElabReflection

111−

112− testFn : Nat -> Nat

113− testFn n = %runElab (do debug {a = ()})

114−

115−when loaded gives:

116−

117−.. code-block:: idris

118−

119− Holes:

120− n : Prelude.Nat.Nat

121− ----------------------------------

122− {hole_3} : Prelude.Nat.Nat

123−

124− n : Prelude.Nat.Nat

125− ----------------------------------

126− {hole_1} : Prelude.Nat.Nat

127−

128− ----------------------------------

129− {hole_0} : patTy n : Prelude.Nat.Nat . Prelude.Nat.Nat

130−

131− Term:

132− ?{hole_0} ≈ pat n : Prelude.Nat.Nat .

133− ?{hole_1} ≈ ? {hole_3} . {hole_3} . {hole_1} .

134− {hole_0}

135−

136−The ns above the lines show the context of the holes on the right hand side - they include the variable n that is an argument!

137−

138−patTy is a binding form in Idris's core language that introduces a pattern variable. The idea is that the left-hand side and right-hand side of each pattern should have the same type. Because pattern variables may occur multiple times on either side of the equation, we can achieve this by documenting their types with a binding form that wraps each side. This new binding form is why an "attack" was necessary prior to elaborating the RHS.

139−

140−patTy is a type former, and pat is the corresponding introduction form. So you can think of patTy as being a bit like a dependent function type, and pat as being a bit like lambda, except they don't introduce functions (they instead are used for pattern-matching definitions).

141−

142−More Complicated Example

143−------------------------

144−

145−This example does not introduce any new notation but the extra complexity gives a more realistic idea of how it is used. Here we start with this file:

146−

147−.. code-block:: idris

148−

149− %language ElabReflection

150−

151− testFn : (n : Nat) -> (n = plus n Z) -> (S n = S (plus n Z))

152− testFn k ih = %runElab (do debug {a = ()})

153−

154−when loaded gives:

155−

156−.. code-block:: idris

157−

158− Holes:

159− k : Prelude.Nat.Nat

160− ih : = Prelude.Nat.Nat Prelude.Nat.Nat k

161− (Prelude.Nat.plus k Prelude.Nat.Z)

162− ----------------------------------

163− {hole_4} : = Prelude.Nat.Nat Prelude.Nat.Nat (Prelude.Nat.S k)

164− (Prelude.Nat.S (Prelude.Nat.plus k Prelude.Nat.Z))

165−

166− k : Prelude.Nat.Nat

167− ih : = Prelude.Nat.Nat Prelude.Nat.Nat k

168− (Prelude.Nat.plus k Prelude.Nat.Z)

169− ----------------------------------

170− {hole_2} : = Prelude.Nat.Nat Prelude.Nat.Nat (Prelude.Nat.S k)

171− (Prelude.Nat.S (Prelude.Nat.plus k Prelude.Nat.Z))

172−

173− k : Prelude.Nat.Nat

174− ----------------------------------

175− {hole_1} : patTy ih : = Prelude.Nat.Nat Prelude.Nat.Nat k

176− (Prelude.Nat.plus k Prelude.Nat.Z) .

177− = Prelude.Nat.Nat Prelude.Nat.Nat (Prelude.Nat.S k)

178− (Prelude.Nat.S (Prelude.Nat.plus k Prelude.Nat.Z))

179−

180− ----------------------------------

181− {hole_0} : patTy k : Prelude.Nat.Nat .

182− patTy ih : = Prelude.Nat.Nat Prelude.Nat.Nat k

183− (Prelude.Nat.plus k Prelude.Nat.Z) .

184− = Prelude.Nat.Nat Prelude.Nat.Nat (Prelude.Nat.S k)

185− (Prelude.Nat.S (Prelude.Nat.plus k Prelude.Nat.Z))

186−

187− Term:

188− ?{hole_0} ≈ pat k : Prelude.Nat.Nat .

189− ?{hole_1} ≈ pat ih : = Prelude.Nat.Nat Prelude.Nat.Nat k

190− (Prelude.Nat.plus k Prelude.Nat.Z) .

191− ?{hole_2} ≈ ? {hole_4} . {hole_4} . {hole_2} .

192− {hole_1} .

193− {hole_0}

194−

195−.. target-notes::

196−.. _`Dependently Typed Functional Programs and their Proofs by McBride 1999`: https://www.era.lib.ed.ac.uk/handle/1842/374

docs/elaboratorReflection/index.rstdeleted−27

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1−.. _elaborator-index:

2−

3−#####################

4−Elaborator Reflection

5−#####################

6−

7−A tutorial on theorem proving in Idris.

8−

9−.. note::

10−

11− The documentation for Idris has been published under the Creative

12− Commons CC0 License. As such to the extent possible under law, *The

13− Idris Community* has waived all copyright and related or neighboring

14− rights to Documentation for Idris.

15−

16− More information concerning the CC0 can be found online at: http://creativecommons.org/publicdomain/zero/1.0/

17−

18−.. toctree::

19− :maxdepth: 1

20−

21− elaborator-reflection

22− elabReflection

23− tactics

24− holes

25− example1

26− primitive

27− generatingData

docs/elaboratorReflection/primitive.rstdeleted−518

@@ -1,518 +0,0 @@

1−Primitive Operators

2−===================

3−

4−.. list-table::

5− :widths: 10 30

6− :stub-columns: 1

7−

8− * - gensym

9− - Generate a unique name based on some hint.

10−

11− Useful when establishing a new binder.

12−

13− **NB**: the generated name is unique **for this run of the elaborator**.

14−

15− Do not assume that they are globally unique.

16−

17− Signature:

18−

19− gensym : (hint : String) -> Elab TTName

20−

21− * - solve

22− - Substitute a guess into a hole.

23−

24−

25− .. image:: ../image/solve.png

26− :width: 141px

27− :height: 74px

28− :alt: diagram illustrating solve tactic

29−

30−

31− Substitute the focused guess throughout its scope, eliminating it and moving focus to the next element of the hole queue. Fail if the focus is not a guess.

32−

33− Signature:

34−

35− solve : Elab ()

36−

37− Example:

38−

39− .. code-block:: idris

40−

41− %language ElabReflection

42−

43− testFn : Nat

44− testFn = %runElab (do fill `(Z)

45− solve)

46−

47− * - fill

48− - Place a term into a hole, unifying its type. Fails if the focus is not a hole.

49−

50−

51− .. image:: ../image/fill.png

52− :width: 140px

53− :height: 74px

54− :alt: diagram illustrating fill tactic

55−

56−

57− Signature:

58−

59− fill : (e : Raw) -> Elab ()

60−

61− Place a term e with type tc into the focused hole:

62−

63− ?h : th.e'

64−

65− and convert it to a guess:

66−

67− ?h ≈ e:t.e'

68−

69− and fail if the current focus is not a hole. The type t of the guess is constructed by unifying tc and th, which may instantiate holes that they refer to. Fail if the current focus is not a hole or if unification fails.

70−

71− This unification can result in the solution of further holes or the establishment of additional unsolved unification constraints.

72−

73− Example:

74−

75− .. code-block:: idris

76−

77− %language ElabReflection

78−

79− testFn : Nat

80− testFn = %runElab (do fill `(Z)

81− solve)

82−

83− * - apply

84− - Attempt to apply an operator to fill the current hole, potentially solving arguments by unification.

85−

86− A hole is established for each argument.

87−

88− The return value is the list of holes established for the arguments to the function.

89−

90− Note that not all of the returned hole names still exist, as they may have been solved.

91−

92− - @ op the term to apply

93− - @ argSpec - A list of booleans, one for each argument that the operator will be applied to. If true then attempt to solve the argument by unification.

94−

95− Signature:

96−

97− apply : (op : Raw) -> (argSpec : List Bool) -> Elab (List TTName)

98−

99− Example: elaborating an application of a function f that takes one implicit and two explicit arguments might invoke:

100−

101− apply \`(f) [False, True, True]

102−

103− Here is an example of an elab script that uses apply to insert the term plus Z (S Z) into a goal of type Nat.

104−

105− .. code-block:: idris

106−

107− do [x,y] <- apply `(plus) [False, False]

108− solve

109− focus x; fill `(Z); solve

110− focus y; fill `(S Z); solve

111−

112− The names of the established holes are returned.

113−

114− Note: This was added to the original tactic language to allow elaborator reflection.

115−

116− * - matchApply

117− - Attempt to apply an operator to fill the current hole, potentially solving arguments by matching.

118−

119− The return value is the list of holes established for the arguments to the function.

120−

121− Note that not all of the returned hole names still exist, as they may have been solved.

122−

123− - @ op the term to apply

124− - @ argSpec instructions for finding the arguments to the term, where the Boolean states whether or not to attempt to solve the argument by matching.

125−

126− Signature:

127−

128− matchApply : (op : Raw) -> (argSpec : List Bool) -> Elab (List TTName)

129−

130− * - focus

131− - Move the focus to the specified hole, bringing it to the front of the hole queue. Fails if the hole does not exist.

132−

133− @ hole the hole to focus on

134−

135− Signature:

136−

137− focus : (hole : TTName) -> Elab ()

138−

139− * - unfocus

140− - Send the currently-focused hole to the end of the hole queue and focus on the next hole.

141−

142− Signature:

143−

144− unfocus : TTName -> Elab ()

145−

146− * - attack

147− - Convert a hole to make it suitable for bindings.

148−

149−

150− .. image:: ../image/attack.png

151− :width: 152px

152− :height: 70px

153− :alt: diagram illustrating attack tactic

154−

155−

156− The binding tactics require that a hole be directly under its binding, or else the scopes of the generated terms won't make sense. This tactic creates a new hole of the proper form, and points the old hole at it.

157−

158− Signature:

159−

160− attack : Elab ()

161−

162− * - claim

163− - Establish a new hole binding named n with type t, surrounding the current focus.

164−

165− Introduce a new hole with a specified name and type.

166−

167− The new hole will be focused, and the previously-focused hole will be immediately after it in the hole queue. Because this tactic introduces a new binding, you may need to 'attack' first.

168−

169− Signature:

170−

171− claim : TTName -> Raw -> Elab ()

172−

173− * - patvar

174− - Convert a hole into a pattern variable.

175−

176− Signature:

177−

178− patvar : TTName -> Elab ()

179−

180− * - compute

181− - Normalise the goal.

182−

183− Often this is not necessary because normanisation is applied during other tactics.

184−

185− Signature:

186−

187− compute : Elab ()

188−

189− * - normalise

190− - Normalise a term in some lexical environment

191−

192− - @ env the environment in which to compute (get one of these from `getEnv`)

193− - @ term the term to normalise

194−

195− Signature:

196−

197− normalise : (env : List (TTName, Binder TT)) -> (term : TT) -> Elab TT

198−

199− * - whnf

200− - Reduce a closed term to weak-head normal form

201−

202− @ term the term to reduce

203−

204− Signature:

205−

206− whnf : (term : TT) -> Elab TT

207−

208− * - convertsInEnv

209− - Check that two terms are convertible in the current context and in some environment.

210−

211− - @ env a lexical environment to compare the terms in (see `getEnv`)

212− - @ term1 the first term to convert

213− - @ term2 the second term to convert

214−

215− Signature:

216−

217− convertsInEnv : (env : List (TTName, Binder TT)) -> (term1, term2 : TT) -> Elab ()

218−

219− * - converts

220− - Check that two terms are convertable in the current context and environment

221−

222− - @ term1 the first term to convert

223− - @ term2 the second term to convertconverts : (term1, term2 : TT) -> Elab ()

224−

225− converts term1 term2 = convertsInEnv !getEnv term1 term2

226−

227− * - getSourceLocation

228− - Find the source context for the elaboration script

229−

230− Signature:

231−

232− getSourceLocation : Elab SourceLocation

233−

234− * - sourceLocation

235− - Attempt to solve the current goal with the source code

236−

237− locationsourceLocation : Elab ()

238−

239− .. code-block:: idris

240−

241− sourceLocation = do loc <- getSourceLocation

242− fill (quote loc)

243− solve

244−

245− * - currentNamespace

246− - Get the current namespace at the point of tactic execution. This allows scripts to define top-level names conveniently.

247−

248− The namespace is represented as a reverse-order list of strings, just as in the representation of names.

249−

250− Signature:

251−

252− currentNamespace : Elab (List String)

253−

254− * - rewriteWith

255− - Attempt to rewrite the goal using an equality.

256−

257− The tactic searches the goal for applicable subterms, and constructs a context for `replace` using them. In some cases, this is not possible, and `replace` must be called manually with an appropriate context.

258−

259− Because this tactic internally introduces a `let` binding, it requires that the hole be immediately under its binder (use 'attack' if it might not be).

260−

261− Signature:

262−

263− rewriteWith : Raw -> Elab ()

264−

265− * - resolveTC

266− - Attempt to solve the current goal with an interface dictionary

267−

268− @ fn the name of the definition being elaborated (to prevent Idris from looping)

269−

270− Signature:

271−

272− resolveTC : (fn : TTName) -> Elab ()

273−

274− * - search

275− - Use Idris's internal proof search.

276−

277− Signature:

278−

279− search : Elab ()

280−

281− * - search'

282− - Use Idris's internal proof search, with more control.

283−

284− - @ depth the search depth

285− - @ hints additional names to try

286−

287− Signature:

288−

289− search' : (depth : Int) -> (hints : List TTName) -> Elab ()

290−

291− * - operatorFixity

292− - Look up the declared fixity for an operator.

293−

294− The lookup fails if the operator does not yet have a fixity or if the string is not a valid operator.

295−

296− @ operator the operator string to look up

297−

298− Signature:

299−

300− operatorFixity : (operator : String) -> Elab Fixity

301−

302− * - debug

303− - Halt elaboration, dumping the internal state for inspection.

304−

305− This is intended for elaboration script developers, not for end-users. Use `fail` for final scripts.

306−

307− Signature:

308−

309− debug : Elab a

310−

311− If 'debug' is not the last tactic then make sure its type is sufficiently constrained. In particular, its type is Elab a, but there's no way for Idris to find out which type was meant for a. This can be fixed by either writing an explicit type (e.g. debug {a = ()}) or by using a helper that constrains the type (such as simple in Pruviloj, e.g. simple debug as a line).

312−

313− .. code-block:: idris

314−

315− %language ElabReflection

316−

317− idNat : Nat -> Nat

318− idNat = %runElab (do intro `{{x}}

319− debug {a = ()}

320− fill (Var `{{x}})

321− solve)

322−

323− * - debugMessage

324− - Halt elaboration, dumping the internal state and displaying a message.

325−

326− This is intended for elaboration script developers, not for end-users. Use `fail` for final scripts.

327−

328− @ msg the message to display

329−

330− Signature:

331−

332− debugMessage : (msg : List ErrorReportPart) -> Elab a

333−

334− If 'debugMessage' is not the last tactic then make sure its type is sufficiently constrained. In particular, its type is Elab a, but there's no way for Idris to find out which type was meant for a. This can be fixed by either writing an explicit type (e.g. debugMessage [TextPart "message"] {a = ()}) or by using a helper that constrains the type (such as simple in Pruviloj, e.g. simple debug as a line).

335−

336− .. code-block:: idris

337−

338− %language ElabReflection

339− idNat : Nat -> Nat

340− idNat = %runElab (do intro `{{x}}

341− debugMessage [TextPart "error message"] {a = ()}

342− fill (Var `{{x}})

343− solve)

344−

345− * - metavar

346− - Create a new top-level metavariable to solve the current hole.

347−

348− @ name the name for the top-level variable

349−

350− Signature:

351−

352− metavar : (name : TTName) -> Elab ()

353−

354− * - runElab

355− - Recursively invoke the reflected elaborator with some goal.

356−

357− The result is the final term and its type.

358−

359− Signature:

360−

361− runElab : Raw -> Elab () -> Elab (TT, TT)

362−

363−

364−Read and Write State

365−--------------------

366−

367−.. list-table::

368− :widths: 10 30

369− :stub-columns: 1

370−

371− * - getEnv

372− - Look up the lexical binding at the focused hole. Fails if no holes are present.

373−

374− Signature:

375−

376− getEnv : Elab (List (TTName, Binder TT))

377−

378− * - getGoal

379− - Get the name and type of the focused hole. Fails if not holes are present.

380−

381− Signature:

382−

383− getGoal : Elab (TTName, TT)

384−

385− * - getHoles

386− - Get the hole queue, in order.

387−

388− Signature:

389−

390− getHoles : Elab (List TTName)

391−

392− * - getGuess

393− - If the current hole contains a guess, return it. Otherwise, fail.

394−

395− Signature:

396−

397− getGuess : Elab TT

398−

399− * - lookupTy

400− - Look up the types of every overloading of a name.

401−

402− Signature:

403−

404− lookupTy : TTName -> Elab (List (TTName, NameType, TT))

405−

406− * - lookupTyExact

407− - Get the type of a fully-qualified name. Fail if it doesn't resolve uniquely.

408−

409− Signature:

410−

411− lookupTyExact : TTName -> Elab (TTName, NameType, TT)

412−

413− * - lookupDatatype

414− - Find the reflected representation of all datatypes whose names are overloadings of some name.

415−

416− Signature:

417−

418− lookupDatatype : TTName -> Elab (List Datatype)

419−

420− * - lookupDatatypeExact

421− - Find the reflected representation of a datatype, given its fully-qualified name. Fail if the name does not uniquely resolve to a datatype.

422−

423− Signature:

424−

425− lookupDatatypeExact : TTName -> Elab Datatype

426−

427− * - lookupFunDefn

428− - Find the reflected function definition of all functions whose names are overloadings of some name.

429−

430− Signature:

431−

432− lookupFunDefn : TTName -> Elab (List (FunDefn TT))

433−

434− * - lookupFunDefnExact

435− - Find the reflected function definition of a function, given its fully-qualified name. Fail if the name does not uniquely resolve to a function.

436−

437− Signature:

438−

439− lookupFunDefnExact : TTName -> Elab (FunDefn TT)

440−

441− * - lookupArgs

442− - Get the argument specification for each overloading of a name.

443−

444− Signature:

445−

446− lookupArgs : TTName -> Elab (List (TTName, List FunArg, Raw))

447−

448− * - lookupArgsExact

449− - Get the argument specification for a name. Fail if the name does not uniquely resolve.

450−

451− Signature:

452−

453− lookupArgsExact : TTName -> Elab (TTName, List FunArg, Raw)

454−

455− * - check

456− - Attempt to type-check a term, getting back itself and its type.

457−

458− - @ env the environment within which to check the type

459− - @ tm the term to check

460−

461− Signature:

462−

463− check : (env : List (TTName, Binder TT)) -> (tm : Raw) -> Elab (TT, TT)

464−

465−Error Handling

466−--------------

467−

468−.. list-table::

469− :widths: 10 30

470− :stub-columns: 1

471−

472− * - tryCatch

473− - `tryCatch t (\err => t')` will run `t`, and if it fails, roll back the elaboration state and run `t'`,

474− but with access to the knowledge of why `t` failed.

475−

476− Signature:

477−

478− tryCatch : Elab a -> (Err -> Elab a) -> Elab a

479−

480− .. code-block:: idris

481−

482− %language ElabReflection

483−

484− f : Err -> Elab ()

485− f (Msg _) = fill `("message error")

486− f (CantUnify _ _ _ _ _ _) = fill `("unification error")

487− f _ = fill `("other")

488−

489− s2 : String

490− s2 = %runElab (do tryCatch (fill `(True)) f ; solve)

491−

492− * - fail

493− - Halt elaboration with an error

494−

495− Signature:

496−

497− fail : List ErrorReportPart -> Elab a

498−

499− Note: we may need to make sure the return type 'a' is sufficiently constrained. If required add an explicit type {a = ()}.

500−

501− Below is some code which includes 'fail'. This will always fail but we could replace 'True' with some more useful condition.

502−

503− .. code-block:: idris

504−

505− %language ElabReflection

506−

507− id1 : Elab ()

508− id1 = do

509− intro `{{x}}

510− fill (Var `{{x}})

511− if True

512− then

513− fail [TextPart "put error message here"]

514− else

515− solve

516−

517− idNat : Nat -> Nat

518− idNat = %runElab id1

docs/elaboratorReflection/tactics.rstdeleted−430

@@ -1,430 +0,0 @@

1−Elaborator Reflection - Tactics

2−===============================

3−

4−The Idris part of the code for elaborator reflection is in

5−Elab.idr `<https://github.com/idris-lang/Idris-dev/blob/master/libs/prelude/Language/Reflection/Elab.idr>`_

6−Before looking at the Elab monad we need to know how to construct terms.

7−

8−

9−Proof State

10−-----------

11−

12−The terminology 'Proof State' is used by analogy to proof assistants but, as used here, it's really more of a metaprogramming state.

13−

14−Tactics operate on the proof state. The proof state contains various pieces of information, at this stage, the important ones for us are:

15−

16−- A hole queue - This contains a list of the names of the holes used in the proof term. The solution to each hole may depend on the other holes. For more information about holes and guesses see `Dependently Typed Functional Programs and their Proofs by McBride 1999`_.

17−- A goal type - The type of the term that is under construction for the current goal.

18−- A possibly incomplete proof term, which is being calculated and should be the goal type at the end of elaboration.

19−- Context - A collection of open unification problems, representing recoverable failures of unification that may yet unify once more variables are solved.

20−

21−There are many other pieces of information in the proof state such as the names used , such as the bodies of case blocks that need to be elaborated.but, for now, we will leave the system to handle these.

22−

23−.. image:: ../image/elabProofState.png

24− :width: 283px

25− :height: 232px

26−

27−Names TTName

28−------------

29−

30−Names in an Idris program are evaluated at runtime but sometimes a 'variable name' is needed, which can be referred to as an unevaluated symbol.

31−The names used in terms have different constructors depending on their type:

32−

33−+---------------------------+-----------------------------------------------+

34−| UN String | A user-provided name |

35−+---------------------------+-----------------------------------------------+

36−| NS (UN "foo") ["B", "A"]) | A name in some namespace |

37−+---------------------------+-----------------------------------------------+

38−| MN Int String | Machine-chosen names |

39−+---------------------------+-----------------------------------------------+

40−| SN SpecialName | Special names, to make conflicts impossible |

41−| | and language features predictable |

42−+---------------------------+-----------------------------------------------+

43−

44−

45−A user defined name can be constructed like this:

46−

47−.. code-block:: idris

48−

49− Idris> UN "x"

50− UN "x" : TTName

51−

52−.. code-block:: idris

53−

54− Idris> NS (UN "x") ["b","a"]

55− NS (UN "x") ["b", "a"] : TTName

56−

57−.. list-table:: machine-chosen names

58−

59− * - A machine-chosen name needs to be generated within an Elab monad (see below for details) and is unique within that monad. This produced: {abc_140}{abc_141} so although gensym "abc" was called twice each one had a different integer:

60− - example of unique names:

61−

62− .. code-block:: idris

63−

64− implementation Show TTName where

65− show (UN s) = "`{{"++s++"}}"

66− show (NS t a) = "{"++(show t)++

67− "."++(show a)++"}"

68− show (MN i s) = "{"++s++"_"++(show i)++"}"

69− show (SN sn) = "TTName special name"

70−

71− showGensym : String

72− showGensym = %runElab (do

73− debugMessage [TextPart (

74− show !(gensym "abc") ++

75− show !(gensym "abc")

76− )]

77− )

78−

79−Quasiquotation

80−--------------

81−

82−Since names are used frequently in elaborator reflection there is a shortcut for constructing them:

83−

84−.. list-table::

85−

86− * - An unresolved variable "x" is wrapped in backtick and double braces:

87− - .. code-block:: idris

88−

89− Idris> `{{x}}

90− UN "x" : TTName

91−

92−

93− * - Single braces are used for existing variables:

94− - .. code-block:: idris

95−

96− Idris> `{x}

97− No such variable x

98− Idris> :let x=2

99− Idris> `{x}

100− UN "x" : TTName

101−

102−

103− * - brackets are used for an expression:

104−

105− here type is inferable

106− - .. code-block:: idris

107−

108− Idris> :let a=2

109− Idris> `(a)

110− P Ref (UN "a") (TConst (AType (ATInt ITBig))) : TT

111−

112−

113− * - Expression with explicit type:

114− - .. code-block:: idris

115−

116− Idris> `(a:Integer)

117− P Ref (UN "a") (TConst (AType (ATInt ITBig))) : TT

118−

119−

120− * - If we want the value we can escape from quasiquotation by using anti-quotation (tilde)

121− - .. code-block:: idris

122−

123− Idris> `(~a)

124− 2 : Integer

125−

126−quasiquotation summary:

127−

128−+------------+-----------+----------------------------------------------------------+

129−| |Reification| |

130−+============+===========+==========================================================+

131−| \`{{n}} | TTName | Use for new names. Unresolved quotation of the name n. |

132−+------------+-----------+----------------------------------------------------------+

133−| \`{n} | TTName | Use for existing names. Resolved quotation of the name |

134−| | | n. n is a reference to a unique name in scope. |

135−+------------+-----------+----------------------------------------------------------+

136−| \`(e) | | expression e for which a type is inferable. |

137−+------------+-----------+----------------------------------------------------------+

138−| \`(e:t) | | expression e with a given type e. |

139−+------------+-----------+----------------------------------------------------------+

140−| ~a | | anti-quotation - sub region which can be evaluated rather|

141−| | | than quoted. |

142−+------------+-----------+----------------------------------------------------------+

143−|(Var\`{{x}})| Raw | |

144−+------------+-----------+----------------------------------------------------------+

145−

146−TT

147−--

148−

149−There is a notation for a term in TT as it is being constructed (based on a BNF-like grammar), this is used for example in the debug output, it is a compact way to see the state of the term so it is used here.

150−So internally the program is stored as a tree structure using the following syntax:

151−

152−+------------+-------+-------------+---------------------------------------------+

154−+============+=======+=============+=============================================+

155−| term | | t | |

156−+------------+-------+-------------+---------------------------------------------+

157−| binding | | b | |

158−+------------+-------+-------------+---------------------------------------------+

159−| constant | t ::= | c | |

160−+------------+-------+-------------+---------------------------------------------+

161−| variable | t ::= | x | |

162−+------------+-------+-------------+---------------------------------------------+

163−| variable | t ::= | b.t | so a dot '.' tells us this is some sort of |

165−+------------+-------+-------------+---------------------------------------------+

166−| application| t ::= | t t | As with Idris, juxtaposition indicates |

167−| | | | function application. Note: the same symbol |

168−| | | | 't' is used for both terms, this does not |

169−| | | | imply they are the same term. |

170−+------------+-------+-------------+---------------------------------------------+

171−| Type | t ::= | T | |

172−| constructor| | | |

173−+------------+-------+-------------+---------------------------------------------+

174−| Data | t ::= | C | |

175−| constructor| | | |

176−+------------+-------+-------------+---------------------------------------------+

177−| function | b::= | λ c:t | colon ':' separates parameters from body of |

178−| | | | binding. |

179−+------------+-------+-------------+---------------------------------------------+

180−| let binding| b::= | let\|-> t:t | |

181−+------------+-------+-------------+---------------------------------------------+

182−| function | b::= | ∀ x:t | |

183−+------------+-------+-------------+---------------------------------------------+

184−| Type | c::= | \*i | The universe hierarchy is usually handled |

186−| | | | type of types. |

187−+------------+-------+-------------+---------------------------------------------+

188−| integer | c:== | i | |

189−| literal | | | |

190−+------------+-------+-------------+---------------------------------------------+

191−|integer type| c:== | Integer | |

192−+------------+-------+-------------+---------------------------------------------+

193−| string | c:== | s | |

194−| literal | | | |

195−+------------+-------+-------------+---------------------------------------------+

196−| string type| c:== | String | |

197−+------------+-------+-------------+---------------------------------------------+

198−|focused hole| | ?x : t | Conor McBride 1999 thesis. |

199−+------------+-------+-------------+---------------------------------------------+

200−| guess | | ?x ≈ t : t | Conor McBride 1999 thesis. |

201−+------------+-------+-------------+---------------------------------------------+

202−

203−Sometimes the part of the term in focus is underlined.

204−

205−Reflection of the well typed core language

206−

207−.. code-block:: idris

208−

209− data TT =

210− ||| A reference to some name (P for Parameter)

211− P NameType TTName TT |

212− ||| de Bruijn variables

213− V Int |

214− ||| Bind a variable

215− Bind TTName (Binder TT) TT |

216− ||| Apply one term to another

217− App TT TT |

218− ||| Embed a constant

219− TConst Const |

220− ||| Erased terms

221− Erased |

222− ||| The type of types along (with universe constraints)

223− TType TTUExp |

224− ||| Alternative universes for dealing with uniqueness

225− UType Universe |

226−

227−TT stores local bound variables using De Bruijn index, when working in Idris this does not concern the user because string names are used for variables. Converting bound variables internally to index values means that the same variable name can be used, in different lambda terms, without ambiguity and without the need for α-substitution.

228−De Bruijn index which is a integer where:

229−

230−- 0=inside current (inner) lambda term

231−- 1= next outer lambda term

232−- 2= next outer and so on

233−

234−Raw

235−---

236−

237−Raw is similar to TT except it is used before types are known. The types should be resolved by the type checker.

238−

239−.. code-block:: idris

240−

241− data Raw =

242− ||| Variables, global or local

243− Var TTName |

244− ||| Bind a variable

245− RBind TTName (Binder Raw) Raw |

246− ||| Application

247− RApp Raw Raw |

248− ||| The type of types

249− RType |

250− ||| Alternative universes for dealing with uniqueness

251− RUType Universe |

252− ||| Embed a constant

253− RConstant Const |

254−

255−Expression Syntax

256−-----------------

257−

258−There is a way of notating expressions such as those used in the proof state (example: goal type and proof terms) which is reasonably standard in the papers written about this subject.

259−

260−This notation is not entered directly by metaprogrammers but it is seen, for example in debug output. So this notation is explained here because it is useful to be familiar with it.

261−

262−The notation assumes right-associativity, in the absence of brackets, the term to the right binds more tightly than the one on the left.

263−So, for nested lambda terms:

264−

265−+---------------+--------+-------------------+

266−| λ a . λ b . f | means | λ a .( λ b . f) |

267−+---------------+--------+-------------------+

268−

269−and the same for function application:

270−

271−+---------------+--------+-------------------+

272−| f g x | means | f (g x) |

273−+---------------+--------+-------------------+

274−

275−In contrast, in lambda calculus, function application is usually regarded as left-associative,

276−Here are some typical examples of the notation used for expressions:

277−

278−+-----------------------+

279−| ? {hole_0} . {hole_0} |

280−+-----------------------+

281−

282−The term, to be derived, may start off in this state following something like this:

283−

284−.. code-block:: idris

285−

286− myScript : Elab ()

287− myScript= do

288−

289−The dot '.' tells us this is some sort of binding.

290−

291−+----------------------------------------------+

292−| ?{hole_0} ≈ ? {hole_2} . {hole_2} . {hole_0} |

293−+----------------------------------------------+

294−

295−This is a slightly more complicated example arising from:

296−

297−.. code-block:: idris

298−

299− idNat : Nat -> Nat

300− idNat = %runElab (do

301−

302−This introduces a guess that hole_0 = hole_2 .

303−

304−+----------------------------------------------------+

305−| ?{hole_0} ≈ λ x . ? {hole_2} . {hole_2} . {hole_0} |

306−+----------------------------------------------------+

307−

308−Following on from the previous example a lambda function is introduced like this:

309−

310−.. code-block:: idris

311−

312− intro `{{x}}

313−

314−So now the expression is wrapped in a lambda binding.

315−

316−+-------------------------------------------------------+

317−| ?{hole_0} ≈ λ x . ?{hole_2} ≈ x . {hole_2} . {hole_0} |

318−+-------------------------------------------------------+

319−

320−Following on, we can use the fill tactic like this:

321−

322−.. code-block:: idris

323−

324− fill (Var `{{x}})

325−

326−which introduces another guess.

327−

328−+--------------------------------+

329−| ?{hole_0} ≈ λ x . x . {hole_0} |

330−+--------------------------------+

331−

332−The solve tactic completes the proof

333−

334−Binders

335−-------

336−

337−Here we look at each tactic in turn to see how they affect the proof state.

338−

339−Introduction tactics for binders. The binder types are:

340−

341−- lambda function (intro)

342−- dependent function (forall)

343−- let (letBind)

344−- pattern (patbind)

345−

346−A precondition of these tactics is that the focused hole is of the form:

347−

348−+-----------+

349−| ?h : t.h |

350−+-----------+

351−

352−that is, that the body of its scope consists directly of a reference to the hole-bound variable. If a hole binder were of the form:

353−

354−+--------------------+

355−| ?h : t1 -> t2.f h |

356−+--------------------+

357−

358−and a tactic such as

359−

360−+------------------+

361−| intro \`{{x}} |

362−+------------------+

363−

364−were applied, the result would be the term

365−

366−+---------------------------+

367−| ?h : t2 . λ x:t1. f h |

368−+---------------------------+

369−

370−However this would cause the application of f to be ill-typed, as it expects an argument of type t1->t2, not an argument of type t2. Additionally, some binding tactics require that t, the type of the hole h, have a specific form, because the binder to be established may have a typing rule associated with it.

371−

372−.. list-table:: Binders

373− :widths: 10 30

374− :stub-columns: 1

375−

376− * - intro

377− - Introduce a lambda binding around the current hole and focus on the body.

378−

379− Requires that the hole be in binding form (use 'attack' if it might not be).

380−

381− @ n the name to use for the argument.

382−

383− Signature:

384−

385− intro : (n : TTName) -> Elab ()

386−

387− Result

388−

389− λn:t1.?h:[n/x]t2.h

390−

391− * - intro'

392− - Introduce a lambda binding around the current hole and focus on the body, using the name provided by the type of the hole.

393−

394− Requires that the hole be immediately under its binder (use 'attack' if it might not be).

395−

396− Signature:

397−

398− intro' : Elab ()

399−

400− * - forall

401− - Introduce a dependent function type binding into the current hole, and focus on the body. Requires that the hole be immediately under its binder

402−

403− (use 'attack' if it might not be).

404−

405− Signature:

406−

407− forall : TTName -> Raw -> Elab ()

408−

409− * - patbind

410− - Introduce a new pattern binding. Requires that the hole be immediately under its binder (use 'attack' if it might not be).

411−

412− Signature:

413−

414− patbind : TTName -> Elab ()

415−

416− * - letbind

417− - Introduce a new let binding.

418−

419− Requires that the hole be immediately under its binder (use 'attack' if it might not be).

420−

421− - @ n the name to let bind

422− - @ ty the type of the term to be let-bound

423− - @ tm the term to be bound

424−

425− Signature:

426−

427− letbind : (n : TTName) -> (ty, tm : Raw) -> Elab ()

428−

429−.. target-notes::

430−.. _`Dependently Typed Functional Programs and their Proofs by McBride 1999`: https://www.era.lib.ed.ac.uk/handle/1842/374

docs/faq/faq.rst+2−2

@@ -37,7 +37,7 @@ Is there some documentation for the standard lib? List of functions?

37=====================================================================

38

39API documentation for the shipped packages is listed on `the

40−documentation page <https://www.idris-lang.org/documentation/>`_.

40+documentation page <http://www.idris-lang.org/documentation/>`_.

41

42Unfortunately, the default prelude and shipped packages for `Idris`

43are not necessarily complete with regards to documentation. Other

@@ -310,7 +310,7 @@ better and it will make sense to revisit this. For now, however, Idris will not

310be offering arbitrary Unicode symbols in operators.

311

312This seems like an instance of `Wadler's

313−Law <https://www.haskell.org/haskellwiki/Wadler%27s_Law>`__ in action.

313+Law <http://www.haskell.org/haskellwiki/Wadler%27s_Law>`__ in action.

314

315This answer is based on Edwin Brady's response in the following

316`pull request <https://github.com/idris-lang/Idris-dev/pull/694#issuecomment-29559291>`_.

docs/guides/index.rst+1−1

@@ -12,7 +12,7 @@ Tutorials submitted by community members.

12 Idris Community* has waived all copyright and related or neighboring

13 rights to Documentation for Idris.

14

15− More information concerning the CC0 can be found online at: https://creativecommons.org/publicdomain/zero/1.0/

15+ More information concerning the CC0 can be found online at: http://creativecommons.org/publicdomain/zero/1.0/

16

17

18.. toctree::

docs/guides/theorem-prover.rst+1−1

@@ -22,7 +22,7 @@ We will be given the following prompt, in future releases the version string wil

22 ____ __ _

23 / _/___/ /____(_)____

24 / // __ / ___/ / ___/ Version 0.9.18.1

25− _/ // /_/ / / / (__ ) https://www.idris-lang.org/

25+ _/ // /_/ / / / (__ ) http://www.idris-lang.org/

26 /___/\__,_/_/ /_/____/ Type :? for help

27

28 Idris is free software with ABSOLUTELY NO WARRANTY.

docs/guides/type-providers-ffi.rst+1−1

@@ -3,7 +3,7 @@ Type Providers in Idris

3***********************

4

5`Type providers in Idris

6−<https://www.davidchristiansen.dk/pubs/dependent-type-providers.pdf>`__

6+<http://www.davidchristiansen.dk/pubs/dependent-type-providers.pdf>`__

7are simple enough, but there are a few caveats to using them that it

8would be worthwhile to go through the basic steps. We also go over

9foreign functions, because these will often be used with type

docs/image/README.mddeleted−16

@@ -1,16 +0,0 @@

1−Many of the images in this directory have two files with the same name but a different extension:

2−

3−* The SVG file, being vector graphics, is best for drawing and modifying.

4−* The PNG file, being raster graphics, gives more consistent rendering.

5−

6−The image has therefore been generated as an SVG file and then exported to the PNG file.

7−

8−So, if you need to modify an image, I suggest the following sequence:

9−

10−* Edit the SVG file using a suitable editor (I use Inkscape).

11−* Export the changes to the PNG file, overwriting the old version.

12−* upload both files.

13−

14−Note, when exporting in Inkscape:

15−* Select everything first, this stops an enormous boundary being exported.

16−* After selecting the file to export to and clicking OK, don't forget to click on export button as well.

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883− y="192.75421"

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886− sodipodi:role="line">module Idris.IDEMode.Parser</tspan></text>

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908− sodipodi:role="line">module Idris.REPL</tspan></text>

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999− y="95.970665"

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1002− id="tspan968">Representation of expressions ready</tspan><tspan

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1007− id="tspan974">for compiling: CExp</tspan><tspan

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1011− sodipodi:role="line"

1012− id="tspan972">Type erased, explicit case trees</tspan></text>

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1060− sodipodi:role="line">module Idris.Error</tspan></text>

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120− id="tspan837"> SeqEmpty : Recognise e1 -> Recognise e2 -> Recognise (e1 || e2)</tspan><tspan

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135− id="tspan843">||| A token recogniser. Guaranteed to consume at least one character.</tspan><tspan

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237− id="tspan973">(<|>) : Recognise c1 -> Recognise c2 -></tspan><tspan

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docs/index.rst+1−3

@@ -13,7 +13,7 @@ Documentation for the Idris Language

13 Idris Community* has waived all copyright and related or neighboring

14 rights to Documentation for Idris.

15

16− More information concerning the CC0 can be found online at: https://creativecommons.org/publicdomain/zero/1.0/

16+ More information concerning the CC0 can be found online at: http://creativecommons.org/publicdomain/zero/1.0/

17

18

19.. toctree::

@@ -24,7 +24,5 @@ Documentation for the Idris Language

24 st/index

25 effects/index

26 proofs/index

27− elaboratorReflection/index

28− parserLibrary/index

29 reference/index

27 reference/index

30 guides/index

28 guides/index

docs/listing/idris-prompt-helloworld.txt+1−1

@@ -2,7 +2,7 @@ $ idris hello.idr

2 ____ __ _

3 / _/___/ /____(_)____

4 / // __ / ___/ / ___/ Version 1.3.2

5− _/ // /_/ / / / (__ ) https://www.idris-lang.org/

5+ _/ // /_/ / / / (__ ) http://www.idris-lang.org/

6 /___/\__,_/_/ /_/____/ Type :? for help

7

8Type checking ./hello.idr

docs/listing/idris-prompt-interp.txt+1−1

@@ -2,7 +2,7 @@ $ idris interp.idr

2 ____ __ _

3 / _/___/ /____(_)____

4 / // __ / ___/ / ___/ Version 1.3.2

5− _/ // /_/ / / / (__ ) https://www.idris-lang.org/

5+ _/ // /_/ / / / (__ ) http://www.idris-lang.org/

6 /___/\__,_/_/ /_/____/ Type :? for help

7

8Type checking ./interp.idr

docs/listing/idris-prompt-start.txt+1−1

@@ -2,7 +2,7 @@ $ idris

2 ____ __ _

3 / _/___/ /____(_)____

4 / // __ / ___/ / ___/ Version 1.3.2

5− _/ // /_/ / / / (__ ) https://www.idris-lang.org/

5+ _/ // /_/ / / / (__ ) http://www.idris-lang.org/

6/___/\__,_/_/ /_/____/ Type :? for help

7

8Idris>

docs/make.bat+1−1

@@ -65,7 +65,7 @@ if errorlevel 9009 (

65 echo.may add the Sphinx directory to PATH.

66 echo.

67 echo.If you don't have Sphinx installed, grab it from

68− echo.https://www.sphinx-doc.org/

68+ echo.http://sphinx-doc.org/

69 exit /b 1

70)

71

docs/parserLibrary/index.rstdeleted−24

@@ -1,24 +0,0 @@

1−.. _parserLibrary:

2−

3−########################

4−Lexer and Parser Library

5−########################

6−

7−A tutorial on the lexer and parser library in Idris.

8−

9−.. note::

10−

11− The documentation for Idris has been published under the Creative

12− Commons CC0 License. As such to the extent possible under law, *The

13− Idris Community* has waived all copyright and related or neighboring

14− rights to Documentation for Idris.

15−

16− More information concerning the CC0 can be found online at: http://creativecommons.org/publicdomain/zero/1.0/

17−

18−.. toctree::

19− :maxdepth: 1

20−

21− introduction

22− lexer

23− parser

24− whitespace

docs/parserLibrary/introduction.rstdeleted−76

@@ -1,76 +0,0 @@

1−.. _parserLibraryIntro:

2−

3−***************************

4−Parser Library Introduction

5−***************************

6−

7−The parser library can be used to build Idris structures from text. It involves a

8−certain amount of complexity and so it would typically be used for big projects.

9−An example might be a compiler for another language, written in Idris.

10−

11−Of course the parser library can also be used to compile to Idris, this is what

12−is done in Idris 2 and that is what the this library appears to have been

13−written for.

14−

15−So a secondary use for this tutorial would be to help understanding the internal

16−workings of Idris 2.

17−

18−The parser library is used in a similar way to Parsec which is a library for

19−writing parsers in Haskell. It is based on higher-order parser combinators, so a

20−complicated parser can be made out of many smaller ones.

21−

22−.. list-table::

23−

24− * - This is a two stage process:

25− - Lexer - This takes the input string and turns it into a list of Tokens.

26− - Parser - This takes the list of tokens and outputs the code.

27−

28− - .. image:: ../image/parserTopLevel.png

29− :width: 307px

30− :height: 76px

31− :alt: diagram illustrating these stages of lexer and parser

32−

33−The advantage of using two stages, like this, is that things like whitespace and

34−comments don't need to be considered in every parser rule.

35−

36−The Idris parser library differs from Parsec in that you need to say, in the

37−Recogniser, whether a rule is guaranteed to consume input. This means that the

38−Idris type system prevents the construction of recognisers/rules that can't

39−consume the input.

40−

41−The Lexer is similar but works at the level of characters rather than tokens, and

42−you need to provide a TokenMap which defines how to build a token from

43−a string when a rule is matched.

44−

45−The following pages contain a tutorial for the :ref:`parserLibraryLexer` and a

46−tutorial for the :ref:`parserLibraryParser`. These tutorials have a running

47−example of a parser for integer expressions. This is a very simple example, there

48−may be easier ways to do something so simple, but it illustrates some of the

49−principles.

50−

51−Parser Library and Idris 2

52−--------------------------

53−

54−The parser library, in Idris 1, is almost the same as the code that the Idris 2

55−parser is built on. Even if you only want to use the Idris 1 parser library it

56−is useful to look at the code in the Idris 2 compilers to see how the library

57−can be used.

58−

59−Idris 2 has at least 3 compilers:

60−

61−- IDEMode - complies to SExp which is a Lisp-like structure used to communicate

62− with external editors like Emacs and Vim.

63−- Idris.Parser - This is the main compiler which compiles from a file to

64− PTerm (and eventually TT structure).

65−- REPL - compiles input from the command line.

66−

67−The following diagram is my first attempt to work out how some of the modules in

68−Idris 2 fit together (with a few of the dependencies between them shown). The

69−Idris 1 library is based on the modules at the bottom of the diagram (shown

70−in red).

71−

72−.. image:: ../image/parserModules.png

73− :width: 460px

74− :height: 496px

75− :alt: diagram illustrating these stages of lexer and parser

76−

docs/parserLibrary/lexer.rstdeleted−288

@@ -1,288 +0,0 @@

1−.. _parserLibraryLexer:

2−

3−Lexer

4−=====

5−

6−The lexer is run by calling the 'lex' function in the Text.Lexer.Core

7−module:

8−

9−.. code-block:: idris

10−

11− lex : TokenMap a -> String -> (List (TokenData a), (Int, Int, String))

12−

13−.. list-table::

14−

15− * - This function takes a String and returns a list of tokens. With the

16− tokens we have indexes back to the original string which can be used

17− in error messages:

18−

19− - .. image:: ../image/tokenise.png

20− :width: 330px

21− :height: 73px

22− :alt: diagram illustrating these stages of lexer

23−

24−TokenMap

25−--------

26−

27−In order to construct this list of tokens we need:

28−

29−- A way to recognise the tokens in the input string.

30−- A way to construct these individual tokens.

31−

32−This is given by the TokenMap which is a list of pairs containing

33−this information:

34−

35−.. code-block:: idris

36−

37− (Lexer, String -> tokenType)

38−

39−So for each Lexer in the list, if a substring in the input matches, run

40−the associated function to produce a token of type ``tokenType``

41−

42−.. list-table::

43−

44− * - from Text.Lexer.Core

45− : https://github.com/idris-lang/Idris-dev/blob/master/libs/contrib/Text/Lexer/Core.idr

46−

47− - .. code-block:: idris

48−

49− TokenMap : (tokenType : Type) -> Type

50− TokenMap tokenType = List (Lexer, String -> tokenType)

51−

52− * - We can create a tokenMap by using a function like this:

53−

54− - .. code-block:: idris

55−

56− myTokenMap : TokenMap Token

57− myTokenMap = [(is 'a',CharLit)]

58−

59−Once we have a TokenMap we can use it to lex many strings.

60−

61−Recognisers

62−-----------

63−

64−The first part of each entry in the TokenMap is the recogniser.

65−

66−A simple recogniser is 'Pred' which uses a predicate (Char -> Bool) to

67−test whether to accept the character. It can be constructed using the

68−'is' function:

69−

70−.. code-block:: idris

71−

72− *parserEx> is 'a'

73− Pred (\ARG =>

74− intToBool (prim__eqChar ARG 'a'))

75− : Recognise True

76−

77−More complicated structures can be recognised as tokens, this is done using

78−the combinator structure of recognisers. This allows recognisers to be

79−combined, for example,

80−

81−.. list-table::

82−

83− * - ``<+>`` means sequence two recognisers. If either consumes a character,

84− the sequence is guaranteed to consume a character.

85−

86− - .. code-block:: idris

87−

88− *parserEx> is 'a' <+> is 'b'

89− SeqEat (Pred (\ARG => intToBool (prim__eqChar ARG 'a')))

90− (Delay (is 'b')) : Recognise True

91−

92− * - ``<|>`` means if both consume, the combination is guaranteed

93− to consumer a character:

94−

95− - .. code-block:: idris

96−

97− *parserEx> is 'a' <|> is 'b'

98− Alt (Pred (\ARG => intToBool (prim__eqChar ARG 'a')))

99− (Pred (\ARG => intToBool (prim__eqChar ARG 'b')))

100− : Recognise True

101−

102−This diagram shows the recogniser combinator with some of its constructors:

103−

104−.. image:: ../image/recogniser.png

105− :width: 487px

106− :height: 249px

107− :alt: recogniser data structure

108−

109−A recogniser consumes its input, that is it advances the index to its input

110−string, as it generates the token list. In some cases we don't want this to

111−happen, for instance, we may need to lookahead before consuming the input

112−string.

113−

114−If a recogniser does not consume input there is a danger of an infinite loop.

115−To prevent this the recogniser is dependent on a boolean called 'consumes' which

116−is true if the recogniser is guaranteed to consume at least one character.

117−

118−The constructors of Recognise allow us to ensure that, even though parts of

119−the recogniser may not consume, overall the recogniser will consume.

120−

121−Since 'Recognise True' is more common than 'Recognise False' it is convenient to

122−use 'Lexer' as a type synonym for 'Recognise True'.

123−

124−Whitespace and Comments

125−-----------------------

126−

127−An important reason to have a lexer is to simplify the parser when whitespace

128−or comments are required. Without this the parser would require a match for

129−every combination, with and without, whitespace and comments.

130−

131−In some languages the lexer needs to remove whitespace and comments so that

132−they don't appear in the token list. In some cases whitespace is significant

133−but a single whitespace token can stand for any number of spaces, tabs,

134−carriage returns and so on.

135−

136−In some cases, such as when parsing the Idris language itself, whitespace

137−is important to indicate blocks. In this case we might want to output a

138−start-of-block token when the indent increases and an end-of-block token

139−when the indent decreases.

140−

141−This topic will be discussed more fully on this page

142−:ref:`parserLibraryWhitespace`.

143−

144−Simple Expression Example for Lexer

145−-----------------------------------

146−

147−On this page we will implement a lexer to 'lex' a very simple expression as

148−a running example, on the next page, we will go on to implement a parser for it.

149−

150−First import the lexer and parser code:

151−

152−.. code-block:: idris

153−

154− module ParserExample

155−

156− import Text.Lexer

157− import public Text.Parser.Core

158− import public Text.Parser

159−

160−Then decide on the tokens that are needed. For this example the idea is to be

161−able to parse simple arithmetic expressions, like this:

162−

163−.. code-block:: idris

164−

165− 1+(2*3)

166−

167−so we need:

168−

169−- Numbers (for now integer literals are good enough).

170−- Some operators (for now ``+``, ``-`` and ``*`` will do.

171−- Opening and closing Parentheses.

172−

173−We can define these, as tokens, like this:

174−

175−.. code-block:: idris

176−

177− %default total

178−

179− public export

180− data ExpressionToken = Number Integer

181− | Operator String

182− | OParen

183− | CParen

184− | EndInput

185−

186−It may help with debugging and to implement error messages to

187−implement ``show`` for these tokens:

188−

189−.. code-block:: idris

190−

191− export

192− Show ExpressionToken where

193− show (Number x) = "number " ++ show x

194− show (Operator x) = "operator " ++ x

195− show OParen = "("

196− show CParen = ")"

197− show EndInput = "end of input"

198−

199− export

200− Show (TokenData ExpressionToken) where

201− show (MkToken l c t) = "line=" ++ show l ++ " col=" ++ show c ++ "tok=" ++ show t

202−

203−The following defines the 'TokenMap' for this example:

204−

205−.. code-block:: idris

206−

207− ||| integer arithmetic operators plus, minus and multiply.

208− export

209− opChars : String

210− opChars = "+-*"

211−

212− operator : Lexer

213− operator = some (oneOf opChars)

214−

215− toInt' : String -> Integer

216− toInt' = cast

217−

218− expressionTokens : TokenMap ExpressionToken

219− expressionTokens =

220− [(digits, \x => Number (toInt' x)),

221− (operator, \x => Operator x),

222− (is '(' ,\x => OParen),

223− (is ')' ,\x => CParen)]

224−

225−This specifies the lexer. It gives, for each token, a function to recognise

226−the token type and a function to construct the token.

227−

228−The library module 'Text.Lexer' contains useful functions to help with this.

229−For example, the digits function used above, which reads one or more

230−numeric characters.

231−

232−We can now run the code with various strings to see what output the lexer

233−produces. This is done by calling the 'lex' function with the TokenMap and

234−input string as parameters:

235−

236−.. code-block:: idris

237−

238− cd Idris-dev/libs/contrib

239− idris -p contrib parserEx.idr

240− ____ __ _

241− / _/___/ /____(_)____

242− / // __ / ___/ / ___/ Version 1.3.2

243− _/ // /_/ / / / (__ ) http://www.idris-lang.org/

244− /___/\__,_/_/ /_/____/ Type :? for help

245−

246− Idris is free software with ABSOLUTELY NO WARRANTY.

247− For details type :warranty.

248− Type checking ./Text/Token.idr

249− Type checking ./Text/Quantity.idr

250− Type checking ./Control/Delayed.idr

251− Type checking ./Data/Bool/Extra.idr

252− Type checking ./Text/Lexer/Core.idr

253− Type checking ./Text/Lexer.idr

254− Type checking ./parserEx.idr

255−

256− *parserEx> lex expressionTokens "1+2"

257− ([MkToken 0 0 (Number 1),

258− MkToken 0

259− (case fspan (\ARG => not (intToBool (prim__eqChar ARG '\n'))) "1" of

260− (incol, "") => c + cast (length incol)

261− (incol, b) => cast (length incol))

262− (Operator "+"),

263− MkToken 0

264− (case fspan (\ARG => not (intToBool (prim__eqChar ARG '\n'))) "+" of

265− (incol, "") => c + cast (length incol)

266− (incol, b) => cast (length incol))

267− (Number 2)],

268− 0,

269− case fspan (\ARG => not (intToBool (prim__eqChar ARG '\n'))) "2" of

270− (incol, "") => c + cast (length incol)

271− (incol, b) => cast (length incol),

272− getString (MkStrLen "" 0)) : (List (TokenData ExpressionToken),

273− Int,

274− Int,

275− String)

276−

277−The lexer uses potentially infinite data structures. It has recursive

278−arguments (codata type) so code is lazy. In the output above the indexes

279−have not been computed but we can pick out the tokens:

280−

281−- (Number 1)

282−- (Operator "+")

283−- (Number 2)

284−

285−So the code is working.

286−

287−We can now go ahead and parse this token list. A parser for this example will

288−be constructed on the next page.

docs/parserLibrary/parser.rstdeleted−700

@@ -1,700 +0,0 @@

1−.. _parserLibraryParser:

2−

3−Parser

4−======

5−

6−To run the parser we call ``parse``. This requires a grammar and the output

7−from the lexer (which is a list of tokens).

8−

9−.. code-block:: idris

10−

11− parse : (act : Grammar tok c ty) -> (xs : List tok) ->

12− Either (ParseError tok) (ty, List tok)

13−

14−If successful this returns 'Right' with a pair of

15−

16−- the parse result.

17−- the unparsed tokens (the remaining input).

18−

19−otherwise it returns 'Left' with the error message.

20−

21−So we need to define the grammar for our parser, this is done using the following

22−'Grammar' data structure. This is a combinator structure, similar in principle

23−to the recogniser combinator for the lexer, which was discussed on the

24−previous page.

25−

26−As with the Recogniser the ``Grammar`` type is dependent on a boolean 'consumes'

27−value which allows us to ensure that complicated ``Grammar`` structures will always

28−consume input.

29−

30−.. code-block:: idris

31−

32− ||| Description of a language's grammar. The `tok` parameter is the type

33− ||| of tokens, and the `consumes` flag is True if the language is guaranteed

34− ||| to be non-empty - that is, successfully parsing the language is guaranteed

35− ||| to consume some input.

36− public export

37− data Grammar : (tok : Type) -> (consumes : Bool) -> Type -> Type where

38− Empty : (val : ty) -> Grammar tok False ty

39− Terminal : String -> (tok -> Maybe a) -> Grammar tok True a

40− NextIs : String -> (tok -> Bool) -> Grammar tok False tok

41− EOF : Grammar tok False ()

42−

43− Fail : Bool -> String -> Grammar tok c ty

44− Commit : Grammar tok False ()

45− MustWork : Grammar tok c a -> Grammar tok c a

46−

47− SeqEat : Grammar tok True a -> Inf (a -> Grammar tok c2 b) ->

48− Grammar tok True b

49− SeqEmpty : {c1, c2 : Bool} ->

50− Grammar tok c1 a -> (a -> Grammar tok c2 b) ->

51− Grammar tok (c1 || c2) b

52− Alt : {c1, c2 : Bool} ->

53− Grammar tok c1 ty -> Grammar tok c2 ty ->

54− Grammar tok (c1 && c2) ty

55−

56−So an example of a grammer type may look something like this:

57−``Grammar (TokenData ExpressionToken) True Integer``.

58−This is a complicated type name and a given parser will need to use it a lot.

59−So to reduce the amount of typing we can use the following type synonym (similar

60−to what is done in Idris 2

61−: https://github.com/edwinb/Idris2/blob/master/src/Parser/Support.idr

62−)

63−

64−.. code-block:: idris

65−

66− public export

67− Rule : Type -> Type

68− Rule ty = Grammar (TokenData ExpressionToken) True ty

69−

70−Parser Example

71−--------------

72−

73−On the previous page we implemented a lexer to 'lex' a very simple expression, on

74−this page we will go on to add a parser for this running example.

75−

76−.. list-table::

77−

78− * - The syntax we are aiming at is something

79− like this (expressed in Backus–Naur form (BNF)):

80− - .. code-block:: idris

81−

82− <expr> ::= <integer literal>

83− | <expr>'+'<expr>

84− | <expr>'-'<expr>

85− | <expr>'*'<expr>

86− | '('<expr>')'

87−

88− <integer literal> ::= <digit>|<integer literal><digit>

89−

90−.. list-table::

91−

92− * - To start, here is a grammar to parse an integer literal (that is, a

93− sequence of numeric characters).

94−

95− - .. code-block:: idris

96−

97− export

98− intLiteral : Rule Integer

99− intLiteral

100− = terminal (\x => case tok x of

101− Number i => Just i

102− _ => Nothing)

103−

104−In order to try this out, here is a temporary function, this calls

105−parse which takes two parameters:

106−

107−- The grammar (in this case intLiteral)

108−- The token list from the lexer.

109−

110−.. code-block:: idris

111−

112− test1 : String -> Either (ParseError (TokenData ExpressionToken))

113− (Integer, List (TokenData ExpressionToken))

114− test1 s = parse intLiteral (fst (lex expressionTokens s))

115−

116−As required, if we pass it a string which is a number literal then it will

117−return the number in the 'Right' option.

118−

119−.. code-block:: idris

120−

121− *parserEx> test1 "123"

122− Right (123, []) : Either (ParseError (TokenData ExpressionToken))

123− (Integer, List (TokenData ExpressionToken))

124−

125−If we pass it a string which is not a number literal then it will return an

126−error message.

127−

128−.. code-block:: idris

129−

130− *parserEx> test1 "a"

131− Left (Error "End of input"

132− []) : Either (ParseError (TokenData ExpressionToken))

133− (Integer, List (TokenData ExpressionToken))

134−

135−If we pass it a number followed by something else, then it will still be

136−successful, this is because we are not specifically checking for end-of-file.

137−

138−.. code-block:: idris

139−

140− *parserEx> test1 "123a"

141− Right (123, []) : Either (ParseError (TokenData ExpressionToken))

142− (Integer, List (TokenData ExpressionToken))

143− *parserEx>

144−

145−.. list-table::

146−

147− * - The ``intLiteral`` function above uses the ``terminal`` function to

148− construct the grammar

149− - .. code-block:: idris

150−

151− ||| Succeeds if running the predicate on the

152− ||| next token returns Just x, returning x.

153− ||| Otherwise fails.

154− export

155− terminal : (tok -> Maybe a) -> Grammar tok True a

156− terminal = Terminal

157−

158−This is defined here

159−: https://github.com/idris-lang/Idris-dev/blob/master/libs/contrib/Text/Parser/Core.idr

160−Idris 2 uses a slightly different version which stores an error message like

161−"Expected integer literal" which can be output if the rule fails

162−: https://github.com/edwinb/Idris2/blob/master/src/Text/Parser/Core.idr

163−

164−.. list-table::

165−

166− * - The 'terminal' function is also used to construct the other

167− elements of the grammar that we require, for instance,

168− opening parenthesis:

169−

170− - .. code-block:: idris

171−

172− openParen : Rule Integer

173− openParen = terminal (\x => case tok x of

174− OParen => Just 0

175− _ => Nothing)

176−

177−Integer value is not really relevant for parenthesis so ``0`` (zero) is used as

178−a default value.

179−

180−As before, this can be tested with a function like this:

181−

182−.. code-block:: idris

183−

184− test2 : String -> Either (ParseError (TokenData ExpressionToken))

185− (Integer, List (TokenData ExpressionToken))

186− test2 s = parse openParen (fst (lex expressionTokens s))

187−

188−We can see below that it correctly parses an open parenthesis and gives an

189−error for anything else:

190−

191−.. code-block:: idris

192−

193− *parserEx> test2 "("

194− Right (0, []) : Either (ParseError (TokenData ExpressionToken))

195− (Integer, List (TokenData ExpressionToken))

196− *parserEx> test2 "123"

197− Left (Error "Unrecognised token"

198− [MkToken 0

199− 0

200− (Number 123)]) : Either (ParseError (TokenData ExpressionToken))

201− (Integer,

202− List (TokenData ExpressionToken))

203−

204−Now we have two Grammars we can try combining them. The following test looks

205−for ``openParen`` followed by ``intLiteral``, the two Grammars are combined using

206−``<*>``. The ``map const`` part uses the integer value from the first.

207−

208−The following test is looking for ``(`` followed by a number:

209−

210−.. code-block:: idris

211−

212− test3 : String -> Either (ParseError (TokenData ExpressionToken))

213− (Integer, List (TokenData ExpressionToken))

214− test3 s = parse (map const openParen <*> intLiteral) (fst (lex expressionTokens s))

215−

216−We can see below that ``(`` followed by a number is successfully parsed but, as

217−required, other token lists are not:

218−

219−.. code-block:: idris

220−

221− *parserEx> test3 "(123"

222− Right (0, []) : Either (ParseError (TokenData ExpressionToken))

223− (Integer, List (TokenData ExpressionToken))

224− *parserEx> test3 "(("

225− Left (Error "Unrecognised token"

226− [MkToken 0

227− (case fspan (\ARG => not (intToBool (prim__eqChar ARG '\n')))

228− "(" of

229− (incol, "") => c + cast (length incol)

230− (incol, b) => cast (length incol))

231− OParen]) : Either (ParseError (TokenData ExpressionToken))

232− (Integer, List (TokenData ExpressionToken))

233−

234− *parserEx> test3 "123"

235− Left (Error "Unrecognised token"

236− [MkToken 0

237− 0

238− (Number 123)]) : Either (ParseError (TokenData ExpressionToken))

239− (Integer,

240− List (TokenData ExpressionToken))

241− *parserEx> test3 "123("

242− Left (Error "Unrecognised token"

243− [MkToken 0 0 (Number 123),

244− MkToken 0

245− (case fspan (\ARG => not (intToBool (prim__eqChar ARG '\n')))

246− "321" of

247− (incol, "") => c + cast (length incol)

248− (incol, b) => cast (length incol))

249− OParen]) : Either (ParseError (TokenData ExpressionToken))

250− (Integer, List (TokenData ExpressionToken))

251−

252−.. list-table::

253−

254− * - The closing parenthesis is constructed in the same way.

255−

256− - .. code-block:: idris

257−

258− closeParen : Rule Integer

259− closeParen = terminal (\x => case tok x of

260− CParen => Just 0

261− _ => Nothing)

262−

263−.. list-table::

264−

265− * - Now we can generate a Grammar for an expression inside parenthesis

266− like this.

267−

268− - .. code-block:: idris

269−

270− paren : Rule Integer -> Rule Integer

271− paren exp = openParen *> exp <* closeParen

272−

273−The use of ``*>`` and ``<*`` instead of ``<*>`` is an easy way to use the integer

274−value from the inner expression.

275−

276−So lets try to use this to define a grammar which recognises either:

277−

278−- An integer literal

279−- An integer literal inside parenthesis

280−- An integer literal inside parenthesis inside parenthesis

281−- ... and so on.

282−

283−.. list-table::

284−

285− * - This requires a recursively defined structure like this:

286−

287− - .. code-block:: idris

288−

289− partial

290− expr : Rule Integer

291− expr = intLiteral <|> (paren expr)

292−

293−This is a valid grammar because every time it is called it is guaranteed to

294−consume a token. However, as an Idris structure, it is problematic due to

295−the recursion. Defining it as partial allows it to compile but at runtime

296−we are likely to get a crash with an (unhelpful) error message like

297−``killed by signal 11``.

298−

299−So a better method is to use ``do`` notation as described in the following

300−section.

301−

302−Monadic Combinator

303−------------------

304−

305−In addition to ``<|>`` and ``<*>`` there is a ``>>=`` combinator, which is

306−defined like this:

307−

308−.. code-block:: idris

309−

310− ||| Sequence two grammars. If either consumes some input, the sequence is

311− ||| guaranteed to consume some input. If the first one consumes input, the

312− ||| second is allowed to be recursive (because it means some input has been

313− ||| consumed and therefore the input is smaller)

314− export %inline

315− (>>=) : {c1 : Bool} ->

316− Grammar tok c1 a ->

317− inf c1 (a -> Grammar tok c2 b) ->

318− Grammar tok (c1 || c2) b

319− (>>=) {c1 = False} = SeqEmpty

320− (>>=) {c1 = True} = SeqEat

321−

322−.. list-table::

323−

324− * - This allows us to use ``do`` notation for the previous parenthesis example:

325−

326− - .. code-block:: idris

327−

328− expr = intLiteral <|> do

329− openParen

330− r <- expr

331− closeParen

332− pure r

333−

334−This can be more flexible than using the ``<*>`` operator. Also it is defined

335−using ``Inf`` so we can implement recursively defined grammars as above.

336−

337−Implementing the Arithmetic Operators

338−-------------------------------------

339−

340−.. list-table::

341−

342− * - Now for the operations, in this case: ``+``, ``-`` and ``*``.

343− The syntax we require for these infix operators

344− would require recursive grammars like this:

345−

346− - .. code-block:: idris

347−

348− expr = expr (op "+") expr

349−

350−As already explained, ``do`` notation can allow us to use recursive

351−definitions but not necessarily left-recursion like this.

352−

353−In order to work up to this gradually lets start with prefix operators

354−(sometimes known as Polish notation) then modify later for infix operators.

355−

356−.. list-table::

357−

358− * - So prefix operators would have this sort of form:

359−

360− - .. code-block:: idris

361−

362− expr = (add (op "+") expr expr)

363−

364−where ``op`` is defined like this:

365−

366−.. code-block:: idris

367−

368− ||| Matches if this is an operator token and string matches, that is,

369− ||| it is the required type of operator.

370− op : String -> Rule Integer

371− op s = terminal (\x => case tok x of

372− (Operator s1) => if s==s1 then Just 0 else Nothing

373− _ => Nothing)

374−

375−.. list-table::

376−

377− * - and ``add`` is defined like this:

378−

379− Where:

380−

381− - x is the add operator.

382− - y is the first operand.

383− - z is the second operand.

384−

385− - .. code-block:: idris

386−

387− addInt : Integer -> Integer -> Integer

388− addInt a b = a+b

389−

390− export

391− add : Grammar tok c1 Integer ->

392− Grammar tok c2 Integer ->

393− Grammar tok c3 Integer ->

394− Grammar tok ((c1 || c2) || c3) Integer

395− add x y z = map addInt (x *> y) <*> z

396−

397−

398−

399−The resulting integer will be the sum of the two operands.

400−

401−.. list-table::

402−

403− * - The other operators are defined in a similar way:

404−

405− - .. code-block:: idris

406−

407− subInt : Integer -> Integer -> Integer

408− subInt a b = a-b

409−

410− export

411− sub : Grammar tok c1 Integer ->

412− Grammar tok c2 Integer ->

413− Grammar tok c3 Integer ->

414− Grammar tok ((c1 || c2) || c3) Integer

415− sub x y z = map subInt (x *> y) <*> z

416−

417− multInt : Integer -> Integer -> Integer

418− multInt a b = a*b

419−

420− export

421− mult : Grammar tok c1 Integer ->

422− Grammar tok c2 Integer ->

423− Grammar tok c3 Integer ->

424− Grammar tok ((c1 || c2) || c3) Integer

425− mult x y z = map multInt (x *> y) <*> z

426−

427−So the top level ``Grammar`` can now be defined as follows. Note that this is

428−partial as it is a potentially infinite structure and so not total.

429−

430−.. code-block:: idris

431−

432− partial

433− expr : Rule Integer

434− expr = (add (op "+") expr expr)

435− <|> (sub (op "-") expr expr)

436− <|> (mult (op "*") expr expr)

437− <|> intLiteral <|> (paren expr)

438−

439−.. list-table::

440−

441− * - To make the testing easier we can use this function:

442−

443− - .. code-block:: idris

444−

445− partial

446− test : String -> Either (ParseError (TokenData ExpressionToken))

447− (Integer, List (TokenData ExpressionToken))

448− test s = parse expr (fst (lex expressionTokens s))

449−

450−.. list-table::

451−

452− * - First test a valid (prefix) expression:

453−

454− - .. code-block:: idris

455−

456− *parserEx> test "+1*6(4)"

457− Right (25,

458− []) : Either (ParseError (TokenData ExpressionToken))

459− (Integer, List (TokenData ExpressionToken))

460−

461−Then an invalid syntax:

462−

463−.. code-block:: idris

464−

465− *parserEx> test "))"

466− Left (Error "Unrecognised token"

467− [MkToken 0 0 CParen,

468− MkToken 0

469− (case fspan (\ARG =>

470− not (intToBool (prim__eqChar ARG

471− '\n')))

472− ")" of

473− (incol, "") => c + cast (length incol)

474− (incol, b) => cast (length incol))

475− CParen]) : Either (ParseError (TokenData ExpressionToken))

476− (Integer,

477− List (TokenData ExpressionToken))

478−

479−However if we try something that is invalid, but starts with a valid token,

480−then it will return ``Right`` (to indicate success)

481−

482−.. code-block:: idris

483−

484− *parserEx> test "1))"

485− Right (1,

486− [MkToken 0

487− (case fspan (\ARG =>

488− not (intToBool (prim__eqChar ARG '\n')))

489− "1" of

490− (incol, "") => c + cast (length incol)

491− (incol, b) => cast (length incol))

492− CParen,

493− MkToken 0

494− (case fspan (\ARG =>

495− not (intToBool (prim__eqChar ARG '\n')))

496− ")" of

497− (incol, "") => c + cast (length incol)

498− (incol, b) => cast (length incol))

499− CParen]) : Either (ParseError (TokenData ExpressionToken))

500− (Integer,

501− List (TokenData ExpressionToken))

502−

503−Infix Notation

504−--------------

505−

506−So far we have implemented a prefix notation for operators (like this:

507−``+ expr expr``) but the aim is to implemented an infix notation (like this:

508−``expr + expr``). To do this we must be able to deal with potentially

509−infinite data structures (see Codata Types here :ref:`sect-typefuns`).

510−

511−First alter the grammar to have infix operations:

512−

513−.. code-block:: idris

514−

515− addInt : Integer -> Integer -> Integer

516− addInt a b = a+b

517−

518− export

519− add : Grammar tok c1 Integer ->

520− Grammar tok c2 Integer ->

521− Grammar tok c3 Integer ->

522− Grammar tok ((c1 || c2) || c3) Integer

523− add x y z = map addInt (x <* y) <*> z

524−

525− subInt : Integer -> Integer -> Integer

526− subInt a b = a-b

527−

528− export

529− sub : Grammar tok c1 Integer ->

530− Grammar tok c2 Integer ->

531− Grammar tok c3 Integer ->

532− Grammar tok ((c1 || c2) || c3) Integer

533− sub x y z = map subInt (x <* y) <*> z

534−

535−

536− multInt : Integer -> Integer -> Integer

537− multInt a b = a*b

538−

539− export

540− mult : Grammar tok c1 Integer ->

541− Grammar tok c2 Integer ->

542− Grammar tok c3 Integer ->

543− Grammar tok ((c1 || c2) || c3) Integer

544− mult x y z = map multInt (x <* y) <*> z

545−

546− partial

547− expr : Rule Integer

548− expr = (add expr (op "+") expr)

549− <|> (sub expr (op "-") expr)

550− <|> (mult expr (op "*") expr)

551− <|> intLiteral <|> (paren expr)

552−

553−However, if this was run, the code would not terminate.

554−

555−Implement Left Recursion Elimination

556−------------------------------------

557−

558−Left factoring, like this, is a general problem.

559−

560−If we have a rule like this:

561−

562−.. code-block:: idris

563−

564− A -> (x<*>y) <|> (x<*>z)

565−

566−If ``x<*>y`` fails but ``x<*>z`` would succeed a problem is that, ``x<*>y`` has

567−already consumed ``x``, so now ``x<*>z`` will fail.

568−

569−so we could write code to backtrack. That is ``try`` ``x<*>y`` without consuming

570−so that, if the first token succeeds but the following tokens fail, then the

571−first tokens would not be consumed.

572−

573−Another approach is left factoring:

574−

575−Left Factoring

576−--------------

577−

578−Replace the rule with two rules (that is we add a non-terminal symbol) so

579−for example, instead of:

580−

581−.. code-block:: idris

582−

583− A -> (x<*>y) <|> (x<*>z)

584−

585−we add an extra rule to give:

586−

587−.. code-block:: idris

588−

589− A -> x<*>N

590− N -> y <|> z

591−

592−That is we convert a general context-free grammar to a LL(1) grammar. Although

593−not every context-free grammar can be converted to a LL(1) grammar.

594−

595−This still does not solve the infinite recursion issue and there is another

596−problem: the precedence of the operators ``+``, ``-`` and ``*`` is not explicit.

597−

598−.. list-table::

599−

600− * - To resolve this we can alter the example to have a BNF like this:

601− Where braces ``{ ... }`` mean the contents can occur 1 or more times.

602−

603− - .. code-block:: idris

604−

605− 'expression' ::= ('+'|'-') 'term' {('+'|'-') 'term'}

606−

607− 'term' ::= 'factor' {'*' 'factor'}

608−

609− 'factor' ::=

610− number

611− | '(' 'expression' ')'

612−

613−

614−.. code-block:: idris

615−

616− expr : Rule Integer

617−

618− factor : Rule Integer

619− factor = intLiteral <|> do

620− openParen

621− r <- expr

622− closeParen

623− pure r

624−

625− term : Rule Integer

626− term = map multInt factor <*> (

627− (op "*")

628− *> factor)

629− <|> factor

630−

631− expr = map addInt term <*> (

632− (op "+")

633− *> term)

634− <|> map subInt term <*> (

635− (op "-")

636− *> term)

637− <|> term

638−

639− calc : String -> Either (ParseError (TokenData ExpressionToken))

640− (Integer, List (TokenData ExpressionToken))

641− calc s = parse expr (fst (lex expressionTokens s))

642−

643− lft : (ParseError (TokenData ExpressionToken)) -> IO ()

644− lft (Error s lst) = putStrLn ("error:"++s)

645−

646− rht : (Integer, List (TokenData ExpressionToken)) -> IO ()

647− rht i = putStrLn ("right " ++ (show i))

648−

649− main : IO ()

650− main = do

651− putStr "alg>"

652− x <- getLine

653− either lft rht (calc x) -- eliminator for Either

654−

655−As the following tests show, this now handles infix operators and precedence.

656−

657−.. list-table::

658−

659− * - For example '*' is an infix operator:

660−

661− - .. code-block:: idris

662−

663− *algebraREPL> :exec

664− alg>2*3

665− right (6, [])

666−

667− * - Check that atomic number literals work:

668−

669− - .. code-block:: idris

670−

671− *algebraREPL> :exec

672− alg>2

673− right (2, [])

674−

675− * - Check that '*' has a higher precedence than '+'.

676−

677− - .. code-block:: idris

678−

679− *algebraREPL> :exec

680− alg>2+3*4

681− right (14, [])

682−

683− * - Also '*' has a higher precedence than '+' when the order is reversed.

684−

685− - .. code-block:: idris

686−

687− *algebraREPL> :exec

688− alg>3*4+2

689− right (14, [])

690−

691− * - Also precedence can be overridden by parenthesis.

692−

693− - .. code-block:: idris

694−

695− *algebraREPL> :exec

696− alg>(2+3)*4

697− right (20, [])

698−

699−This is still not correct because it does not correctly parse multiple sums or terms

700−like ``1+2+3`` or ``1*2*3``.

docs/parserLibrary/whitespace.rstdeleted−250

@@ -1,250 +0,0 @@

1−.. _parserLibraryWhitespace:

2−

3−Whitespace and Comments

4−=======================

5−

6−The previous two pages introduced the lexer and parser but have not yet

7−discussed how to handle whitespace and comments.

8−

9−In some grammars whitespace and comments would not be considered significant and

10−so we might be tempted not to generate any tokens for them. However, in the

11−running example, we may want to make spaces significant in the future. For

12−example, we might want to implement function application expressed by

13−juxtaposition as in Haskell and Idris like this: ``f x``.

14−

15−So, on this page, we will add a token for whitespace and comments. We will

16−then consider two ways to process this:

17−

18−- Filter all whitespace tokens from the lexer results before passing to

19− the parser.

20−- Process the whitespace tokens in the parser.

21−

22−Whitespace and Comments in Lexer

23−--------------------------------

24−

25−To start with we can use the same token for both whitespace and comments. Here

26−it is called ``Comment`` and added to the ``ExpressionToken`` data structure

27−like this:

28−

29−.. code-block:: idris

30−

31− public export

32− data ExpressionToken = Number Integer

33− | Operator String

34− | OParen

35− | CParen

36− | Comment String

37− | EndInput

38−

39−This is added to the ``TokenMap`` like this:

40−

41−.. code-block:: idris

42−

43− ||| from https://github.com/edwinb/Idris2/blob/master/src/Parser/Lexer.idr

44− comment : Lexer

45− comment = is '-' <+> is '-' <+> many (isNot '\n')

46−

47− expressionTokens : TokenMap ExpressionToken

48− expressionTokens =

49− [(digits, \x => Number (toInt' x)),

50− (operator, \x => Operator x),

51− (is '(' ,\x => OParen),

52− (is ')' ,\x => CParen),

53− (spaces, Comment),

54− (comment, Comment)]

55−

56−As you can see, the comment is defined like a single line Idris comment,

57−it starts with ``--`` and continues for the remainder of the line.

58−

59−We don't need to define ``spaces`` because it is already defined in

60−: https://github.com/idris-lang/Idris-dev/blob/master/libs/contrib/Text/Lexer.idr

61−like this:

62−

63−.. code-block:: idris

64−

65− ||| Recognise a single whitespace character

66− ||| /\\s/

67− space : Lexer

68− space = pred isSpace

69−

70− ||| Recognise one or more whitespace characters

71− ||| /\\s+/

72− spaces : Lexer

73− spaces = some space

74−

75−If these whitespace tokens are not significant, that is, they can appear

76−anywhere and they are optional then we can filter them out before the parser

77−gets them like this:

78−

79−.. code-block:: idris

80−

81− processWhitespace : (List (TokenData ExpressionToken), Int, Int, String)

82− -> (List (TokenData ExpressionToken), Int, Int, String)

83− processWhitespace (x,l,c,s) = ((filter notComment x),l,c,s) where

84− notComment : TokenData ExpressionToken -> Bool

85− notComment t = case tok t of

86− Comment _ => False

87− _ => True

88−

89− calc : String -> Either (ParseError (TokenData ExpressionToken))

90− (Integer, List (TokenData ExpressionToken))

91− calc s = parse expr (fst (processWhitespace (lex expressionTokens s)))

92−

93−

94−Whitespace and Comments in Parser

95−---------------------------------

96−

97−If we sometimes require whitespace to be significant then we can't filter

98−them out as above. In this case the ``Comment`` tokens are sent to the parser

99−which now needs to be able to handle them.

100−

101−.. code-block:: idris

102−

103− commentSpace : Rule Integer

104− commentSpace = terminal (\x => case tok x of

105− Comment s => Just 0

106− _ => Nothing)

107−

108−So far we don't have any syntax that requires spaces to be significant so we

109−need to define the grammar so that it will parse with, or without, spaces.

110−This needs to be done in a systematic way, here I have defined the grammar so

111−that there is an optional space to the right of every atom or operator.

112−First add versions of ``intLiteral`` , ``openParen`` , ``closeParen``

113−and ``op`` that allow optional spaces/comments to the right of them:

114−

115−.. code-block:: idris

116−

117− intLiteralC : Rule Integer

118− intLiteralC = (intLiteral <* commentSpace) <|> intLiteral

119−

120− openParenC : Rule Integer

121− openParenC = (openParen <* commentSpace) <|> openParen

122−

123− closeParenC : Rule Integer

124− closeParenC = (closeParen <* commentSpace) <|> closeParen

125−

126− ||| like op but followed by optional comment or space

127− opC : String -> Rule Integer

128− opC s = ((op s) <* commentSpace) <|> (op s)

129−

130−Then just use these functions instead of the original functions:

131−

132−.. code-block:: idris

133−

134− expr : Rule Integer

135−

136− factor : Rule Integer

137− factor = intLiteralC <|> do

138− openParenC

139− r <- expr

140− closeParenC

141− pure r

142−

143− term : Rule Integer

144− term = map multInt factor <*> (

145− (opC "*")

146− *> factor)

147− <|> factor

148−

149− expr = map addInt term <*> (

150− (opC "+")

151− *> term)

152− <|> map subInt term <*> (

153− (opC "-")

154− *> term)

155− <|> term

156−

157− calc : String -> Either (ParseError (TokenData ExpressionToken))

158− (Integer, List (TokenData ExpressionToken))

159− calc s = parse expr (fst (lex expressionTokens s))

160−

161− lft : (ParseError (TokenData ExpressionToken)) -> IO ()

162− lft (Error s lst) = putStrLn ("error:"++s)

163−

164− rht : (Integer, List (TokenData ExpressionToken)) -> IO ()

165− rht i = putStrLn ("right " ++ (show i))

166−

167− main : IO ()

168− main = do

169− putStr "alg>"

170− x <- getLine

171− either lft rht (calc x) -- eliminator for Either

172−

173−

174−Defining Block Structure using Indents

175−--------------------------------------

176−

177−Many languages such as Python, Haskell and Idris use indents to delimit

178−the block structure of the language.

179−

180−We can see how Idris2 does it here

181−: https://github.com/edwinb/Idris2/blob/master/src/Parser/Support.idr

182−

183−.. code-block:: idris

184−

185− export

186− IndentInfo : Type

187− IndentInfo = Int

188−

189− export

190− init : IndentInfo

191− init = 0

192−

193−EndInput Token

194−--------------

195−

196−So far, the parser will return a successful result even if the full input

197−is not consumed. To ensure that the top level syntax is fully matched we

198−add a ``EndInput`` token to indicate the last token.

199−

200−``EndInput`` is added to the other tokens like this:

201−

202−.. code-block:: idris

203−

204− data ExpressionToken = Number Integer

205− | Operator String

206− | OParen

207− | CParen

208− | Comment String

209− | EndInput

210−

211−A rule to consume this token is added:

212−

213−.. code-block:: idris

214−

215− eoi : Rule Integer

216− eoi = terminal (\x => case tok x of

217− EndInput => Just 0

218− _ => Nothing)

219−

220−Instead of using ``expr`` at the top level of the syntax we can now define

221−``exprFull`` as shown here. This will make sure that only when ``EndInput``

222−is consumed will the parse be successful:

223−

224−.. code-block:: idris

225−

226− exprFull : Rule Integer

227− exprFull = expr <* eoi

228−

229−The following code makes sure ``EndInput`` is added to the end of the token

230−list:

231−

232−.. code-block:: idris

233−

234− processWhitespace : (List (TokenData ExpressionToken), Int, Int, String)

235− -> (List (TokenData ExpressionToken), Int, Int, String)

236− processWhitespace (x,l,c,s) = ((filter notComment x)++

237− [MkToken l c EndInput],l,c,s) where

238− notComment : TokenData ExpressionToken -> Bool

239− notComment t = case tok t of

240− Comment _ => False

241− _ => True

242−

243−All we have to do now is use ``exprFull`` instead of ``expr``:

244−

245−.. code-block:: idris

246−

247− calc : String -> Either (ParseError (TokenData ExpressionToken))

248− (Integer, List (TokenData ExpressionToken))

249− calc s = parse exprFull (fst (processWhitespace (lex expressionTokens s)))

250−

docs/proofs/definitional.rst+8−12

@@ -1,7 +1,3 @@

1−*******************

2−Background Material

3−*******************

4−

5In order to understand how to write proofs in Idris I think its worth clarifying some fundamentals, such as,

1In order to understand how to write proofs in Idris I think its worth clarifying some fundamentals, such as,

6

2

7- Propositions and judgments

3- Propositions and judgments

@@ -99,11 +95,11 @@ So now that we can represent propositions as types other aspects of propositiona

99+----------+-------------------+--------------------------+

95+----------+-------------------+--------------------------+

100| B | y=z | |

96| B | y=z | |

101+----------+-------------------+--------------------------+

97+----------+-------------------+--------------------------+

102−| and | A /\\ B | ``Pair(x=y,y=z)`` |

98+| and | A /\ B | Pair(x=y,y=z) |

103+----------+-------------------+--------------------------+

99+----------+-------------------+--------------------------+

104−| or | A \\/ B | ``Either(x=y,y=z)`` |

100+| or | A \/ B | Either(x=y,y=z) |

105+----------+-------------------+--------------------------+

101+----------+-------------------+--------------------------+

106−| implies | A -> B | ``(x=y) -> (y=x)`` |

102+| implies | A -> B | (x=y) -> (y=x) |

107+----------+-------------------+--------------------------+

103+----------+-------------------+--------------------------+

108| for all | y=z | |

104| for all | y=z | |

109+----------+-------------------+--------------------------+

105+----------+-------------------+--------------------------+

@@ -130,8 +126,8 @@ We can have a type which corresponds to disjunction:

130.. code-block:: idris

126.. code-block:: idris

131

127

132 data Or : Type -> Type -> Type where

128 data Or : Type -> Type -> Type where

133− OrIntroLeft : a -> A a b

129+ OrIntroLeft : a -> A a b

134− OrIntroRight : b -> A a b

130+ OrIntroRight : b -> A a b

135

131

136There is a built in type called 'Either'.

132There is a built in type called 'Either'.

137

133

@@ -206,7 +202,7 @@ In the following pages we discuss how to resolve propositionaly equalies.

206Axiomatic and Constructive Approaches

202Axiomatic and Constructive Approaches

207=====================================

203=====================================

208

204

209−How should we define types so that we can do proofs on them? In the natural numbers with the plus example we could have started by treating it as a group based on the plus operator. So we have axioms:

205+How should we define types so that we can do proofs on them? In the natural numbers with plus example we could have started by treating it as a group based on the plus operator. So we have axioms:

210

206

211- for all x,y : ``x+y=y+x``

207- for all x,y : ``x+y=y+x``

212- for all x: ``x + 0 = x = 0 + x``

208- for all x: ``x + 0 = x = 0 + x``

@@ -219,13 +215,13 @@ These are axioms, that is a propositions/types that are asserted to be true with

219

215

220.. code-block:: idris

216.. code-block:: idris

221

217

222− postulate commutePlus: (x:Nat) -> (y:Nat) -> plus x y = plus y x

218+ commutePlus ``postulate``: x -> y -> plus x y = plus y x

223

219

224Alternatively we could define the natural numbers based on Zero and Successor. The axioms above then become derived rules and we also gain the ability to do inductive proofs.

220Alternatively we could define the natural numbers based on Zero and Successor. The axioms above then become derived rules and we also gain the ability to do inductive proofs.

225

221

226As we know, Idris uses both of these approaches with automatic coercion between them which gives the best of both worlds.

222As we know, Idris uses both of these approaches with automatic coercion between them which gives the best of both worlds.

227

223

228−So what can we learn from this to implement our own types:

224+So what can we learn from this to implement out own types:

229

225

230- Should we try to implement both approaches?

226- Should we try to implement both approaches?

231- Should we define our types by constructing up from primitive types?

227- Should we define our types by constructing up from primitive types?

docs/proofs/index.rst+2−2

@@ -4,7 +4,7 @@

4Theorem Proving

5###############

6

7−A tutorial on theorem proving in Idris.

7+A tutorial on theorem proving in Idris.

8

9.. note::

10

@@ -13,7 +13,7 @@ A tutorial on theorem proving in Idris.

13 Idris Community* has waived all copyright and related or neighboring

14 rights to Documentation for Idris.

15

16− More information concerning the CC0 can be found online at: https://creativecommons.org/publicdomain/zero/1.0/

16+ More information concerning the CC0 can be found online at: http://creativecommons.org/publicdomain/zero/1.0/

17

18.. toctree::

19 :maxdepth: 1

docs/proofs/interactive.rst+17−17

@@ -15,15 +15,15 @@ construct proofs as described on this page.

15Elab and Pruviloj Libraries

16===========================

17

18−Elaborator reflection is defined in ``prelude/Language/Reflection/Elab.idr``

18+Elaborator reflection is defined in prelude/Language/Reflection/Elab.idr

19−and ``pruviloj`` is defined in ``Idris-dev/libs/pruviloj/``.

19+and pruviloj is defined in Idris-dev/libs/pruviloj/

20

21−``Elab`` defines the basics such as: ``solve``, ``attack``, ``intro``, ``compute``,

21+``Elab`` defines the basics such as: solve, attack, intro, compute,

22−``rewriteWith`` and others.

22+rewriteWith and others.

23``pruviloj`` defines some more advanced derived commands such as:

24−``reflexivity`` and others.

24+reflexivity and others.

25

26−To use ``pruviloj`` call Idris with the ``-p pruviloj`` option and add:

26+To use ``pruviloj`` call Idris with the "-p pruviloj" option and add:

27

28.. code-block:: idris

29

@@ -34,7 +34,7 @@ to the top of your file.

34

35It is useful to get the docs at the REPL by using the ``:doc`` command, and

36search the docstrings using ``:apropos``. So to introduce the functions from

37−``Elab`` and ``Pruviloj``, that we will need for the following example, here are

37+Elab and Pruviloj, that we will need for the following example, here are

38their docstrings:

39

40.. code-block:: idris

@@ -84,7 +84,7 @@ their docstrings:

84 that the hole be immediately under its binder (use attack if it might

85 not be).

86

87−Here is the command from ``pruviloj`` that we will need for the example on

87+Here is the command from pruviloj that we will need for the example on

88this page:

89

90.. code-block:: idris

@@ -129,18 +129,18 @@ On running , two global names are created, ``plusredZ_Z`` and

129

130 . / _/___/ /____(_)____

131 / // __ / ___/ / ___/ Version 1.2.0

132− _/ // /_/ / / / (__ ) https://www.idris-lang.org/

132+ _/ // /_/ / / / (__ ) http://www.idris-lang.org/

133 /___/\__,_/_/ /_/____/ Type :? for help

134

135 Idris is free software with ABSOLUTELY NO WARRANTY.

136 For details type :warranty.

137 Holes: Main.plusredZ_S, Main.plusredZ_Z

138

139−This tells us that we have two holes ``Main.plusredZ_S`` and ``Main.plusredZ_Z``. We can solve

139+This tells us that we have two holes Main.plusredZ_S and Main.plusredZ_Z. We can solve

140these separately, ``plusredZ_Z`` is the simplest so we will do that first.

141

142The ``:elab plusredZ_Z`` command enters interactive elaboration mode, which can be used to

143−complete the missing definition for ``plusredZ_Z``.

143+complete the missing definition for plusredZ_Z.

144

145.. code-block:: idris

146

@@ -150,7 +150,7 @@ complete the missing definition for ``plusredZ_Z``.

150 {hole_0} : 0 = 0

151

152This has been normalised to ``0 = 0`` so now we have to prove that ``0`` equals ``0``, which

153−is easy to prove by ``reflexivity`` from the ``pruviloj`` library:

153+is easy to prove by reflexivity from the pruviloj library:

154

155.. code-block:: idris

156

@@ -190,7 +190,7 @@ accessible by pattern matching) and ``ih`` — the local variable

190containing the result of the recursive call. We can introduce these as

191assumptions using the ``intro`` tactic twice. The parameter is entered as

192a constant of type ``TTName`` which is entered as a backtick with double

193−braces ```{{ih}}``. This gives:

193+braces \`{{ih}}. This gives:

194

195.. code-block:: idris

196

@@ -223,11 +223,11 @@ like to use this knowledge to replace ``plus k 0`` in the goal with

223 {hole_0} : S k = S k

224

225The ``rewriteWith`` tactic takes an equality proof as an argument, and tries

226−to rewrite the goal using that proof. The ``ih`` value is entered as a constant

226+to rewrite the goal using that proof. The ih value is entered as a constant

227−of type ``TTName`` which is entered as a backtick with double braces ```{{ih}}`` but

227+of type ``TTName`` which is entered as a backtick with double braces `{{ih}} but

228``rewriteWith`` requires an expression of type ``Raw``, rather than just a name,

229−so the ``Var`` constructor is used to make a variable. Here, it results in an equality

229+so the Var constructor is used to make a variable. Here, it results in an equality

230−which is trivially provable using ``reflexivity``:

230+which is trivially provable using reflexivity:

231

232.. code-block:: idris

233

docs/proofs/pluscomm.rst+1−1

@@ -182,7 +182,7 @@ interface rather than using ``plus`` directly. They have the names

182

183In the remainder of this tutorial, we will explore several different

184ways of proving ``plus_commutes`` (or, to put it another way, writing

185−the function). We will also discuss how to use such equality proofs, and

185+the function.) We will also discuss how to use such equality proofs, and

186see where the need for them arises in practice.

187

188.. [1]

docs/proofs/propositional.rst+22−27

@@ -1,22 +1,19 @@

1−******************************

2−Proving Propositional Equality

3−******************************

4−

5This page attempts to explain some of the techniques used in Idris to prove propositional equalities.

1This page attempts to explain some of the techniques used in Idris to prove propositional equalities.

6

2

7−We have seen that definitional equalities can be proved using ``Refl`` since they always normalise to unique values that can be compared directly.

3+Proving Propositional Equality

4+==============================

8

5

9−However with propositional equalities we are using symbolic variables they do not always normalise.

6+We have seen that definitional equalities can be proved using Refl since they always normalise to unique values that can be compared directly.

10

7

11−So to take the previous example:

8+However with propositional equalities we are using symbolic variables they do not always normalse.

12

9

13−.. code-block:: idris

10+So to take the previous example:

14

11

15− plusReducesR : (n:Nat) -> plus n Z = n

12+plusReducesR : (n:Nat) -> plus n Z = n

16

13

17−In this case ``plus n Z`` does not normalise to ``n``. Even though both sides are equal we cannot pattern match ``Refl``.

14+In this case 'plus n Z' does not normalise to n. Even though both sides are equal we cannot pattern match Refl.

18

15

19−If the pattern match cannot match for all ``n`` then the way around this is to separately match all possible values of ``n``. In the case of natural numbers we do this by induction.

16+If the pattern match cannot match for all 'n' then the way around this is to separately match all possible values of 'n'. In the case of natural numbers we do this by induction.

20

17

21So here:

18So here:

22

19

@@ -27,21 +24,19 @@ So here:

27 plusReducesR {n = (S k)} = let rec = plus_commutes_Z {n=k} in

24 plusReducesR {n = (S k)} = let rec = plus_commutes_Z {n=k} in

28 rewrite rec in Refl

25 rewrite rec in Refl

29

26

30−we don't call ``Refl`` to match on ``n = plus n 0`` forall ``n`` we call it for every number separately. So, in the second line, the pattern matcher knows to substitute ``Z`` for ``n`` in the type being matched. This uses ``rewrite`` which is explained below.

27+we don't call Refl to match on 'n = plus n 0' forall 'n' we call it for every number separately. So, in the second line, the pattern matcher knows to substitute Z for n in the type being matched. This uses 'rewrite' which is explained below.

31

28

32Replace

29Replace

33=======

30=======

34

31

35−This implements the *indiscernability of identicals* principle, if two terms are equal then they have the same properties. In other words, if ``x=y``, then we can substitute ``y`` for ``x`` in any expression. In our proofs we can express this as:

32+This implements the 'indiscernability of identicals' principle, if two terms are equal then they have the same properties. In other words, if x=y, then we can substitute y for x in any expression. In our proofs we can express this as:

36−

37−.. code-block:: idris

38

33

39 if x=y

34 if x=y

40 then P x = P y

35 then P x = P y

41

36

42−where ``P`` is a pure function representing the property. In the examples below ``P`` is an expression in some variable with a type like this: ``P: n -> Type``.

37+where P is a pure function representing the property. In the examples below P is an expression in some variable with a type like this: P: n -> Type

43

38

44−So if ``n`` is a natural number variable then ``P`` could be something like ``2*n + 3``.

39+So if n is a natural number variable then P could be something like 2*n + 3.

45

40

46To use this in our proofs there is the following function in the prelude:

41To use this in our proofs there is the following function in the prelude:

47

42

@@ -51,14 +46,14 @@ To use this in our proofs there is the following function in the prelude:

51 replace : {a:_} -> {x:_} -> {y:_} -> {P : a -> Type} -> x = y -> P x -> P y

46 replace : {a:_} -> {x:_} -> {y:_} -> {P : a -> Type} -> x = y -> P x -> P y

52 replace Refl prf = prf

47 replace Refl prf = prf

53

48

54−Removing the implicits, if we supply an equality ``x=y`` and a proof of a property of ``x`` (i.e. ``P x``) then we get a proof of a property of ``y`` (i.e. ``P y``)

49+Removing the implicits, if we supply an equality (x=y) and a proof of a property of x (P x) then we get a proof of a property of y (P y)

55

50

56.. code-block:: idris

51.. code-block:: idris

57

52

58 > :t replace

53 > :t replace

59 replace : (x = y) -> P x -> P y

54 replace : (x = y) -> P x -> P y

60

55

61−So, in the following example, if we supply ``p1 x`` which is a proof that ``x=2`` and the equality ``x=y`` then we get a proof that ``y=2``.

56+So, in the following example, if we supply p1 x which is a proof that x=2 and the equality x=y then we get a proof that y=2.

62

57

63.. code-block:: idris

58.. code-block:: idris

64

59

@@ -71,16 +66,16 @@ So, in the following example, if we supply ``p1 x`` which is a proof that ``x=2`

71Rewrite

66Rewrite

72=======

67=======

73

68

74−Similar to ``replace`` above but Idris provides a nicer syntax which makes ``rewrite`` easier to use in examples like ``plusReducesR`` above.

69+Similar to 'replace' above but Idris provides a nicer syntax which makes 'rewrite' easier to use in examples like plusReducesR above.

75

70

76.. code-block:: idris

71.. code-block:: idris

77

72

78 rewrite__impl : (P : a -> Type) -> x = y -> P y -> P x

73 rewrite__impl : (P : a -> Type) -> x = y -> P y -> P x

79 rewrite__impl p Refl prf = prf

74 rewrite__impl p Refl prf = prf

80

75

81−The difference from ``replace`` above is nicer syntax and the property ``p1`` is explicitly supplied and it goes in the opposite direction (input and output reversed).

76+The difference from 'replace' above is nicer syntax and the property p1 is explicitly supplied and it goes in the opposite direction (input and output reversed).

82

77

83−Example: again we supply ``p1`` which is a proof that ``x=2`` and the equality ``x=y`` then we get a proof that ``y=2``.

78+Example: again we supply p1 which is a proof that x=2 and the equality x=y then we get a proof that y=2.

84

79

85.. code-block:: idris

80.. code-block:: idris

86

81

@@ -92,16 +87,16 @@ Example: again we supply ``p1`` which is a proof that ``x=2`` and the equality `

92

87

93We can think of rewrite doing this:

88We can think of rewrite doing this:

94

89

95− * start with a equation ``x=y`` and a property ``P: x -> Type``;

90+ * Start with a equation x=y and a property P: x -> Type

96− * search ``y`` in ``P``;

91+ * Searches y in P

97− * replace all occurrences of ``y`` with ``x`` in ``P``.

92+ * Replaces all occurrences of y with x in P.

98

93

99That is, we are doing a substitution.

94That is, we are doing a substitution.

100

95

101Symmetry and Transitivity

96Symmetry and Transitivity

102=========================

97=========================

103

98

104−In addition to *reflexivity* equality also obeys *symmetry* and *transitivity* and these are also included in the prelude:

99+In addition to 'reflexivity' equality also obeys 'symmetry' and 'transitivity' and these are also included in the prelude:

105

100

106.. code-block:: idris

101.. code-block:: idris

107

102

@@ -116,7 +111,7 @@ In addition to *reflexivity* equality also obeys *symmetry* and *transitivity* a

116Heterogeneous Equality

111Heterogeneous Equality

117======================

112======================

118

113

119−Also included in the prelude:

114+Also included in the prelude:

120

115

121.. code-block:: idris

116.. code-block:: idris

122

117

docs/reference/codegen.rst+4−6

@@ -1,5 +1,3 @@

1−.. _code-generation-targets:

2−

3************************

1************************

4Code Generation Targets

2Code Generation Targets

5************************

3************************

@@ -36,10 +34,10 @@ issue the following command:

36 $ idris --codegen javascript hello.idr -o hello.js

34 $ idris --codegen javascript hello.idr -o hello.js

37

35

38

36

39−Idris can produce big chunks of JavaScript code (hello world weighs in at about

37+Idris can produce very big chunks of JavaScript code (hello world

40−60 lines). However, the generated code can be minified using the

38+weighs in at 1500 lines). However, the generated code can be minified

39+using the `closure-compiler

41−`closure-compiler <https://developers.google.com/closure/compiler/>`__ from

40+<https://developers.google.com/closure/compiler/>`__ from Google.

42−Google.

43

41

44::

42::

45

43

docs/reference/compilation.rst+15−15

@@ -54,7 +54,7 @@ by setting a verbosity level.

54 Checking, and the individual steps prior to code generation.

55

56

57−By default Idris' progress reporting is set to quiet: ``-q``, or ``--quiet``.

57+By default Idris' progress reporting is set to quiet-``-q``, or ``--quiet``.

58

59Logging Internal Operation

60===========================

@@ -100,32 +100,32 @@ Environment Variables

100Several paths set by default within the Idris compiler can be

101overridden through environment variables. The provided variables are:

102

103−* ``IDRIS_CC`` Change the *C compiler* used by the *C backend*.

103+* `IDRIS_CC` Change the `C` compiler used by the `C` backend.

104−* ``IDRIS_CFLAGS`` Change the *C flags* passed to the *C compiler*.

104+* `IDRIS_CFLAGS` Change the `C` flags passed to the `C` compiler.

105−* ``TARGET`` Change the target directory i.e. *data dir* where Idris installs files when installing using Cabal/Stack.

105+* `TARGET` Change the target directory i.e. `data dir` where Idris installs files when installing using Cabal/Stack.

106−* ``IDRIS_LIBRARY_PATH`` Change the location of where installed packages are found/installed.

106+* `IDRIS_LIBRARY_PATH` Change the location of where installed packages are found/installed.

107−* ``IDRIS_DOC_PATH`` Change the location of where generated idrisdoc for packages are installed.

107+* `IDRIS_DOC_PATH` Change the location of where generated idrisdoc for packages are installed.

108

109.. note::

110

111 In versions of Idris prior to 0.12.3 the environment variables

112− ``IDRIS_LIBRARY_PATH`` and ``TARGET`` were both used to affect the

112+ `IDRIS_LIBRARY_PATH` and `TARGET` were both used to affect the

113 installation of single packages and direct where Idris installed

114 its data. The meaning of these variables has changed, and command

115 line options are preferred when changing where individual packages

116 are installed.

117

118−The CLI option ``--ibcsubdir`` can be used to direct where generated IBC

118+The CLI option `--ibcsubdir` can be used to direct where generated IBC

119files are placed. However, this means Idris will install files in a

120non-standard location separate from the rest of the installed

121−packages. The CLI option ``--idrispath <dir>`` allows you to add a

121+packages. The CLI option `--idrispath <dir>` allows you to add a

122directory to the library search path; this option can be used multiple

123−times and can be shortened to ``-i <dir>``. Similary, the ``--sourcepath

123+times and can be shortened to `-i <dir>`. Similary, the `--sourcepath

124−<dir>`` option can be used to add directories to the source search

124+<dir>` option can be used to add directories to the source search

125−path. There is no shortened version for this option as ``-s`` is a

125+path. There is no shortened version for this option as `-s` is a

126reserved flag.

127

128Further, Idris also supports options to augment the paths used, and

129−pass options to the code generator backend. The option ``--cg-opt

129+pass options to the code generator backend. The option `--cg-opt

130−<ARG>`` can be used to pass options to the code generator. The format

130+<ARG>` can be used to pass options to the code generator. The format

131−of ``<ARG>`` is dependent on the selected backend.

131+of `<ARG>` is dependent on the selected backend.

docs/elaboratorReflection/elaborator-reflection.rst → docs/reference/elaborator-reflection.rstrenamed+5−11

@@ -1,8 +1,8 @@

1.. _elaborator-reflection:

2

3−**********************************

3+*********************

4−Elaborator Reflection Introduction

4+Elaborator Reflection

5−**********************************

5+*********************

6

7The Idris elaborator is responsible for converting high-level Idris code into the core language.

8It is implemented as a kind of embedded tactic language in Haskell, where tactic scripts are written in an *elaboration monad* that provides error handling and a proof state.

@@ -198,12 +198,6 @@ This is primarily useful for code generation, particularly for generating patter

198

199Learn More

200==========

201−

201+While this documentation is still incomplete, elaboration reflection works in Idris today.

202−Some tactics are introduced in the :ref:`proofs-index` section with further details, of those most relevant to elaborator reflection, on the following pages.

203−

204−The list of built-in tactics can be obtained using the ``:browse`` command in an Idris REPL or the corresponding feature in one of the graphical IDE clients to explore the ``Language.Reflection.Elab.Tactics`` namespace.

202+As you wait for the completion of the documentation, the list of built-in tactics can be obtained using the ``:browse`` command in an Idris REPL or the corresponding feature in one of the graphical IDE clients to explore the ``Language.Reflection.Elab.Tactics`` namespace.

205All of the built-in tactics contain documentation strings.

203All of the built-in tactics contain documentation strings.

206−

207−For alternative ways to extend the Idris language see the :ref:`reference-index` section.

208−

209−The following pages explain more about the theory and practice of elaborator reflection.

docs/reference/erasure.rst+3−3

@@ -254,7 +254,7 @@ Benchmarks

254==========

255

256- source: https://github.com/ziman/idris-benchmarks

257−- results: https://ziman.functor.sk/erasure-bm/

257+- results: http://ziman.functor.sk/erasure-bm/

258

259It can be clearly seen that asymptotics are improved by erasure.

260

@@ -269,7 +269,7 @@ Usage warnings are quite bad and unhelpful at the moment. We should

269include more information and at least translate argument numbers to

270their names.

271

272−There is no decent documentation yet. This page is the first one.

272+There is no decent documentation yet. This wiki page is the first one.

273

274There is no generally accepted terminology. We switch between

275"dotted", "unused", "erased", "irrelevant", "inaccessible", while each

@@ -499,4 +499,4 @@ References

499

500.. [BMM04] Edwin Brady, Conor McBride, James McKinna: `Inductive

501 families need not store their indices

502− <https://citeseerx.ist.psu.edu/viewdoc/summary;jsessionid=1F796FCF0F2C4C535FC70F62BE2FB821?doi=10.1.1.62.3849>`__

502+ <http://citeseerx.ist.psu.edu/viewdoc/summary;jsessionid=1F796FCF0F2C4C535FC70F62BE2FB821?doi=10.1.1.62.3849>`__

docs/reference/ffi.rst+6−7

@@ -204,10 +204,9 @@ unable to pass the closed-over values through C. If we want to pass Idris values

204to the callback we have to pass them through C explicitly. Non-primitive Idris

205values can be passed to C via the ``Raw`` type.

206

207−The other big limitation is that it doesn't support ``IO`` functions. Use

207+The other big limitation is that it doesn't support IO functions. Use

208−``unsafePerformIO`` to wrap them (i.e. to make an ``IO`` function usable as a

208+``unsafePerformIO`` to wrap them (i.e. to make an IO function usable as a callback, change the return type

209−callback, change the return type from ``IO r`` to ``r``, and change the ``= do``

210−to ``= unsafePerformIO $ do``).

209+from IOr to r, and change the = do to = unsafePerformIO $ do).

211

210

212There are two special function names:

211There are two special function names:

213``%wrapper`` returns the function pointer that wraps an Idris function. This

212``%wrapper`` returns the function pointer that wraps an Idris function. This

@@ -259,7 +258,7 @@ useful to access constants that are preprocessor definitions (like ``INT_MAX``).

259 main = print !intMax

258 main = print !intMax

260

259

261For more complicated interactions with C (such as reading and setting fields

260For more complicated interactions with C (such as reading and setting fields

262−of a C ``struct``), there is a module C FFI available in the contrib package.

261+of a C struct), there is a module CFFI available in the contrib package.

263

262

264C heap

263C heap

265------

264------

@@ -372,7 +371,7 @@ Usage from C code

372The ``Raw`` type constructor allows you to access or return a runtime

371The ``Raw`` type constructor allows you to access or return a runtime

373representation of the value. For instance, if you want to copy a string

372representation of the value. For instance, if you want to copy a string

374generated from C code into an Idris value, you may want to return a

373generated from C code into an Idris value, you may want to return a

375−``Raw String`` instead of a ``String`` and use ``MKSTR`` or ``MKSTRlen`` to

374+``Raw String``instead of a ``String`` and use ``MKSTR`` or ``MKSTRlen`` to

376copy it over.

375copy it over.

377

376

378.. code-block:: idris

377.. code-block:: idris

@@ -394,7 +393,7 @@ FFI implementation

394------------------

393------------------

395

394

396In order to write bindings to external libraries, the details of how

395In order to write bindings to external libraries, the details of how

397−``foreign`` works are unnecessary: you simply need to know that

396+``foreign`` works are unnecessary --- you simply need to know that

398``foreign`` takes an FFI descriptor, the function name, and its

397``foreign`` takes an FFI descriptor, the function name, and its

399type. It is instructive to look a little deeper, however:

398type. It is instructive to look a little deeper, however:

400

399

docs/reference/index.rst+2−1

@@ -14,7 +14,7 @@ This will tell you how Idris works, for using it you should read the Idris Tutor

14 Idris Community* has waived all copyright and related or neighboring

15 rights to Documentation for Idris.

16

17− More information concerning the CC0 can be found online at: https://creativecommons.org/publicdomain/zero/1.0/

17+ More information concerning the CC0 can be found online at: http://creativecommons.org/publicdomain/zero/1.0/

18

19

20.. toctree::

@@ -36,6 +36,7 @@ This will tell you how Idris works, for using it you should read the Idris Tutor

36 internals

37 language-features

38 language-extensions

39+ elaborator-reflection

39 type-directed-search

40 type-directed-search

40 partial-evaluation

41 partial-evaluation

41 misc

42 misc

docs/reference/internals.rst+28−31

@@ -10,8 +10,8 @@ free to contribute.

10This document assumes that you are already familiar with Idris. It is

11intended for those who want to work on the internals.

12

13−People looking to develop new back ends may want to look at

13+People looking to develop new back ends may want to look at [[Idris back

14−:ref:`code-generation-targets`

14+end IRs\|Idris-back-end-IRs]]

15

16Core/TT.hs

17==========

@@ -53,7 +53,7 @@ with ``SC`` and ``CaseAlt`` to get GHC to generate a function for

53mapping over contained terms.

54

55Constructor cases (``ConCase`` in ``CaseAlt``) refer to numbered

56−constructors. Every constructor is numbered *0,1,2,…*. At this stage in

56+constructors. Every constructor is numbered 0,1,2,…. At this stage in

57the compiler, the tags are datatype-local. After defunctionalization,

58however, they are made globally unique.

59

@@ -91,12 +91,12 @@ dictionary which makes totality checking easier.

91The ``normalise*`` functions give different behaviors - but

92``normalise`` is the most common.

93

94−- ``normaliseC`` - "resolved" means with names converted to de Bruijn

94+``normaliseC`` - "resolved" means with names converted to de Bruijn

95− indices as appropriate;

95+indices as appropriate.

96

97−- ``normaliseAll`` - reduce everything, even if it's non-total;

97+``normaliseAll`` - reduce everything, even if it's non-total

98

99−- ``normaliseTrace`` - special-purpose for debugging.

99+``normaliseTrace`` - special-purpose for debugging

100

101``simplify`` - reduce the things that are small - the list argument is

102the things to not reduce.

@@ -110,8 +110,8 @@ Core/Elaborate.hs

110=================

111

112Idris definitions are elaborated one by one and turned into the

113−corresponding ``TT``. This is done with a tactic language as an EDSL in the

113+corresponding TT. This is done with a tactic language as an EDSL in the

114−``Elab`` monad (or ``Elab'`` when there's a custom state).

114+Elab monad (or Elab' when there's a custom state).

115

116Lots of plumbing for errors.

117

@@ -122,17 +122,17 @@ The string in the pair returned by elaborate is log information.

122See JFP paper, but the names don't necessarily map to each other. The

123paper is the "idealized version" without logging, additional state, etc.

124

125−All the tactics take ``Raw`` s, typechecking happens there.

125+All the tactics take Raws, typechecking happens there.

126

127−``claim (x : t)`` assumes a new ``x : t``.

127+claim (x : t) assumes a new x : t.

128

129PLEASE TIDY THINGS UP!

130

131−``proofSearch`` flag is to try whether the failure came from a human (so

131+proofSearch flag to try' is whether the failure came from a human (so

132fail) or from a machine (so continue)

133

134−Idris-level syntax for providing alternatives explicitly: ``(| x, y, z

134+Idris-level syntax for providing alternatives explicitly: (\| x, y, z

135−|)`` try ``x``, ``y``, ``z`` in order, and take the first that succeeds.

135+\|) try x, y, z in order, and take the first that succeeds.

136

137Core/ProofState.hs

138==================

@@ -140,40 +140,37 @@ Core/ProofState.hs

140Core/Unify.hs

141=============

142

143−Deals with unification. Unification can reply with:

143+Deals with unification. Unification can reply with: - this works - this

144+can never work - this will work if these other unification problems work

145+out (eg unifying f x with 1)

144

146

145−- this works

146−- this can never work

147−- this will work if these other unification problems work out (e.g.

148− unifying ``f x`` with ``1``)

149−

150−``match_unify``: same thing as unification except it's just matching name

147+match\_unify: same thing as unification except it's just matching name

151−against name, term against term. ``x + y`` matches to ``0 + y`` with

148+against name, term against term. x + y matches to 0 + y with x = 0. Used

152−``x = 0``. Used for ``<==`` syntax as well as type class resolution.

149+for <== syntax as well as type class resolution.

153

150

154Idris/AbsSyntaxTree.hs

151Idris/AbsSyntaxTree.hs

155======================

152======================

156

153

157−``PTerm`` is the datatype of Idris syntax. ``P`` is for *Program*.

154+PTerm is the datatype of Idris syntax. P is for Program. Each PTerm

158−Each ``PTerm`` turns into a TT term by applying a series of tactics.

155+turns into a TT term by applying a series of tactics.

159

156

160−``IState`` is the major interpreter state. The global context is the

157+IState is the major interpreter state. The global context is the

161−``tt_ctxt`` field.

158+tt\_ctxt field.

162

159

163−``Ctxt`` maps possibly ambiguous names to their referents.

160+Ctxt maps possibly ambiguous names to their referents.

164

161

165Idris/ElabDecls.hs

162Idris/ElabDecls.hs

166==================

163==================

167

164

168−This is where the actual elaboration from ``PTerm`` to ``TT`` happens.

165+This is where the actual elaboration from PTerm to TT happens.

169

166

170Idris/ElabTerm.hs

167Idris/ElabTerm.hs

171=================

168=================

172

169

173−``build`` is the function that creates a ``Raw``. All the "junk" is to deal with

170+build is the function that creates a Raw. All the "junk" is to deal with

174things like metavars and so forth. It has to remember what names are

171things like metavars and so forth. It has to remember what names are

175still to be defined, and it doesn't yet know the type (filled in by

172still to be defined, and it doesn't yet know the type (filled in by

176unificaiton later). Also case expressions have to turn into top-level

173unificaiton later). Also case expressions have to turn into top-level

177functions.

174functions.

178

175

179−``resolveTC`` is type class resolution.

176+resolveTC is type class resolution.

docs/reference/language-extensions.rst+3−8

@@ -3,12 +3,13 @@ Language Extensions

3*******************

4

5

6+

6Type Providers

7Type Providers

7===============

8===============

8

9

9Idris type providers are a way to get the type system to reflect

10Idris type providers are a way to get the type system to reflect

10observations about the world outside of Idris. Similarly to `F# type

11observations about the world outside of Idris. Similarly to `F# type

11−providers <https://msdn.microsoft.com/en-us/library/vstudio/hh156509.aspx>`__,

12+providers <http://msdn.microsoft.com/en-us/library/vstudio/hh156509.aspx>`__,

12they cause effectful computations to run during type checking, returning

13they cause effectful computations to run during type checking, returning

13information that the type checker can use when checking the rest of the

14information that the type checker can use when checking the rest of the

14program. While F# type providers are based on code generation, Idris

15program. While F# type providers are based on code generation, Idris

@@ -31,11 +32,5 @@ to the user.

31Example Idris type providers can be seen at `this

32Example Idris type providers can be seen at `this

32repository <https://github.com/david-christiansen/idris-type-providers>`__.

33repository <https://github.com/david-christiansen/idris-type-providers>`__.

33More detailed descriptions are available in David Christiansen's `WGP

34More detailed descriptions are available in David Christiansen's `WGP

34−'13 paper <https://dx.doi.org/10.1145/2502488.2502495>`__ and `M.Sc.

35+'13 paper <http://dx.doi.org/10.1145/2502488.2502495>`__ and `M.Sc.

35thesis <http://itu.dk/people/drc/david-christiansen-thesis.pdf>`__.

36thesis <http://itu.dk/people/drc/david-christiansen-thesis.pdf>`__.

36−

37−Elaborator Reflection

38−=====================

39−

40−Another way to extend the language is elaborator reflection which is described

41−in the :ref:`elaborator-index` section.

docs/reference/misc.rst+5−5

@@ -115,11 +115,11 @@ Here is an example:

115 import Syntax.PreorderReasoning

116 multThree : (a, b, c : Nat) -> a * b * c = c * a * b

117 multThree a b c =

118− (a * b * c) ={ sym (multAssociative a b c) }=

118+ (a * b * c) ={ sym (multAssociative a b c) }=

119− (a * (b * c)) ={ cong (multCommutative b c) }=

119+ (a * (b * c)) ={ cong (multCommutative b c) }=

120− (a * (c * b)) ={ multAssociative a c b }=

120+ (a * (c * b)) ={ multAssociative a c b }=

121− (a * c * b) ={ cong {f = (* b)} (multCommutative a c) }=

121+ (a * c * b) ={ cong {f = (* b)} (multCommutative a c) }=

122− (c * a * b) QED

122+ (c * a * b) QED

123

124Note that the parentheses are required -- only a simple expression can

125be on the left of ``={ }=`` or ``QED``. Also, when using preorder

docs/reference/partial-evaluation.rst+2−2

@@ -8,7 +8,7 @@ of functions with arguments annotated as ``%static``.

8

9(This is an implementation of the partial evaluator described in `this

10ICFP 2010

11−paper <https://eb.host.cs.st-andrews.ac.uk/writings/icfp10.pdf>`__.

11+paper <http://eb.host.cs.st-andrews.ac.uk/writings/icfp10.pdf>`__.

12Please refer to this for more precise definitions of what follows.)

13

14Partial evaluation is switched off by default since Idris 1.0. It can

@@ -207,7 +207,7 @@ Specialising Interpreters

207A particularly useful situation where partial evaluation becomes

208effective is in defining an interpreter for a well-typed expression

209language, defined as follows (see the `Idris tutorial, section

210−4 <https://eb.host.cs.st-andrews.ac.uk/writings/idris-tutorial.pdf>`__

210+4 <http://eb.host.cs.st-andrews.ac.uk/writings/idris-tutorial.pdf>`__

211for more details on how this works):

212

213::

docs/reference/type-directed-search.rst+1−1

@@ -4,7 +4,7 @@ Type Directed Search ``:search``

4

5Idris' ``:search`` command searches for terms according to their

6approximate type signature (much like

7−`Hoogle <https://www.haskell.org/hoogle/>`__ for Haskell). For

7+`Hoogle <http://www.haskell.org/hoogle/>`__ for Haskell). For

8example::

9

10 Idris> :search e -> List e -> List e

docs/reference/uniqueness-types.rst+2−2

@@ -13,7 +13,7 @@ ideally while giving up as little high level conveniences as possible.

13

14They are inspired by linear types, `Uniqueness Types

15<https://en.wikipedia.org/wiki/Uniqueness_type>`__ in the `Clean

16−<https://wiki.clean.cs.ru.nl/Clean>`__ programming language, and

16+<http://wiki.clean.cs.ru.nl/Clean>`__ programming language, and

17ownership types and borrowed pointers in the `Rust

18<https://www.rust-lang.org/>`__ programming language.

19

@@ -199,7 +199,7 @@ return it in exactly the condition in which it was received!

199The restriction is that when a ``Borrowed`` type is matched, any

200pattern variables under the ``Read`` which have a unique type may not

201be referred to at all on the right hand side (unless they are

202−themselves lent to another function).

202+themselves ``lent`` to another function).

203

204Uniqueness information is stored in the type, and in particular in

205function types. Once we're in a unique context, any new function which

docs/st/index.rst+1−1

@@ -14,7 +14,7 @@ the `Control.ST` library in `Idris`.

14 Idris Community* has waived all copyright and related or neighbouring

15 rights to Documentation for Idris.

16

17− More information concerning the CC0 can be found online at: https://creativecommons.org/publicdomain/zero/1.0/

17+ More information concerning the CC0 can be found online at: http://creativecommons.org/publicdomain/zero/1.0/

18

19.. toctree::

20 :maxdepth: 1

docs/st/introduction.rst+1−1

@@ -3,7 +3,7 @@ Overview

3********

4

5Pure functional languages with dependent types such as `Idris

6−<https://www.idris-lang.org/>`_ support reasoning about programs directly

6+<http://www.idris-lang.org/>`_ support reasoning about programs directly

7in the type system, promising that we can *know* a program will run

8correctly (i.e. according to the specification in its type) simply

9because it compiles.

docs/tutorial/conclusions.rst+5−5

@@ -7,7 +7,7 @@ Further Reading

7Further information about Idris programming, and programming with

8dependent types in general, can be obtained from various sources:

9

10−- The Idris web site (https://www.idris-lang.org/) and by asking

10+- The Idris web site (http://www.idris-lang.org/) and by asking

11 questions on the mailing list.

12

13- The IRC channel ``#idris``, on

@@ -25,7 +25,7 @@ dependent types in general, can be obtained from various sources:

25 https://github.com/idris-lang/Idris-dev.

26

27- Existing projects on the ``Idris Hackers`` web space:

28− https://idris-hackers.github.io.

28+ http://idris-hackers.github.io.

29

30- Various papers (e.g. [1]_, [2]_, and [3]_). Although these mostly

31 describe older versions of Idris.

@@ -36,14 +36,14 @@ dependent types in general, can be obtained from various sources:

36 Aspects of Declarative Languages (PADL'12), Claudio Russo and

37 Neng-Fa Zhou (Eds.). Springer-Verlag, Berlin, Heidelberg,

38 242-257. DOI=10.1007/978-3-642-27694-1_18

39− https://dx.doi.org/10.1007/978-3-642-27694-1_18

39+ http://dx.doi.org/10.1007/978-3-642-27694-1_18

40

41.. [2] Edwin C. Brady. 2011. IDRIS ---: systems programming meets full

42 dependent types. In Proceedings of the 5th ACM workshop on

43 Programming languages meets program verification (PLPV

44 '11). ACM, New York, NY, USA,

45 43-54. DOI=10.1145/1929529.1929536

46− https://doi.acm.org/10.1145/1929529.1929536

46+ http://doi.acm.org/10.1145/1929529.1929536

47

48.. [3] Edwin C. Brady and Kevin Hammond. 2010. Scrapping your

49 inefficient engine: using partial evaluation to improve

@@ -51,4 +51,4 @@ dependent types in general, can be obtained from various sources:

51 15th ACM SIGPLAN international conference on Functional

52 programming (ICFP '10). ACM, New York, NY, USA,

53 297-308. DOI=10.1145/1863543.1863587

54− https://doi.acm.org/10.1145/1863543.1863587

54+ http://doi.acm.org/10.1145/1863543.1863587

docs/tutorial/index.rst+1−1

@@ -15,7 +15,7 @@ existing functional programming language such as Haskell or OCaml.

15 Idris Community* has waived all copyright and related or neighboring

16 rights to Documentation for Idris.

17

18− More information concerning the CC0 can be found online at: https://creativecommons.org/publicdomain/zero/1.0/

18+ More information concerning the CC0 can be found online at: http://creativecommons.org/publicdomain/zero/1.0/

19

20

21.. toctree::

docs/tutorial/introduction.rst+2−2

@@ -6,7 +6,7 @@ Introduction

6

7In conventional programming languages, there is a clear distinction

8between *types* and *values*. For example, in `Haskell

9−<https://www.haskell.org>`_, the following are types, representing

9+<http://www.haskell.org>`_, the following are types, representing

10integers, characters, lists of characters, and lists of any value

11respectively:

12

@@ -49,7 +49,7 @@ Intended Audience

49

50This tutorial is intended as a brief introduction to the language, and

51is aimed at readers already familiar with a functional language such

52−as `Haskell <https://www.haskell.org>`_ or `OCaml <https://ocaml.org>`_.

52+as `Haskell <http://www.haskell.org>`_ or `OCaml <http://ocaml.org>`_.

53In particular, a certain amount of familiarity with Haskell syntax is

54assumed, although most concepts will at least be explained

55briefly. The reader is also assumed to have some interest in using

docs/tutorial/miscellany.rst+1−1

@@ -560,7 +560,7 @@ But what about the type of ``Type``? If we ask Idris it reports:

560 Type : Type 1

561

562If ``Type`` were its own type, it would lead to an inconsistency due to

563−`Girard’s paradox <https://www.cs.cmu.edu/afs/cs.cmu.edu/user/kw/www/scans/girard72thesis.pdf>`_,

563+`Girard’s paradox <http://www.cs.cmu.edu/afs/cs.cmu.edu/user/kw/www/scans/girard72thesis.pdf>`_,

564so internally there is a *hierarchy* of types (or *universes*):

565

566.. code-block:: idris

docs/tutorial/syntax.rst+3−3

@@ -196,16 +196,16 @@ syntax rule, we can even go as far as:

196 Aspects of Declarative Languages (PADL'12), Claudio Russo and

197 Neng-Fa Zhou (Eds.). Springer-Verlag, Berlin, Heidelberg,

198 242-257. DOI=10.1007/978-3-642-27694-1_18

199− https://dx.doi.org/10.1007/978-3-642-27694-1_18

199+ http://dx.doi.org/10.1007/978-3-642-27694-1_18

200

201.. [2] Edwin C. Brady. 2011. IDRIS ---: systems programming meets full

202 dependent types. In Proceedings of the 5th ACM workshop on

203 Programming languages meets program verification (PLPV

204 '11). ACM, New York, NY, USA,

205 43-54. DOI=10.1145/1929529.1929536

206− https://doi.acm.org/10.1145/1929529.1929536

206+ http://doi.acm.org/10.1145/1929529.1929536

207

208.. [3] Edwin Brady and Kevin Hammond. 2010. Correct-by-Construction

209 Concurrency: Using Dependent Types to Verify Implementations of

210 Effectful Resource Usage Protocols. Fundam. Inf. 102, 2 (April

211− 2010), 145-176. https://dl.acm.org/citation.cfm?id=1883636

211+ 2010), 145-176. http://dl.acm.org/citation.cfm?id=1883636

idris-tutorial.pdf

Binary file not shown.

idris.cabal+49−103

@@ -1,11 +1,10 @@

1−Cabal-Version: 2.4

2Name: idris

1Name: idris

3Version: 1.3.2

2Version: 1.3.2

4−License: BSD-3-Clause

3+License: BSD3

5License-file: LICENSE

4License-file: LICENSE

6Author: Edwin Brady

5Author: Edwin Brady

7Maintainer: Edwin Brady <eb@cs.st-andrews.ac.uk>

6Maintainer: Edwin Brady <eb@cs.st-andrews.ac.uk>

8−Homepage: https://www.idris-lang.org/

7+Homepage: http://www.idris-lang.org/

9Bug-reports: https://github.com/idris-lang/Idris-dev/issues

8Bug-reports: https://github.com/idris-lang/Idris-dev/issues

10

9

11Stability: Beta

10Stability: Beta

@@ -17,7 +16,7 @@ Description: Idris is a general purpose language with full dependent types.

17 meaning that some aspects of a program's behaviour can be

16 meaning that some aspects of a program's behaviour can be

18 specified precisely in the type. The language is closely

17 specified precisely in the type. The language is closely

19 related to Epigram and Agda. There is a tutorial at

18 related to Epigram and Agda. There is a tutorial at

20− <https://www.idris-lang.org/documentation>.

19+ <http://www.idris-lang.org/documentation>.

21 Features include:

20 Features include:

22 .

21 .

23 * Full, first class, dependent types with dependent pattern matching

22 * Full, first class, dependent types with dependent pattern matching

@@ -42,25 +41,42 @@ Description: Idris is a general purpose language with full dependent types.

42 .

41 .

43 * Hugs style interactive environment

42 * Hugs style interactive environment

44

43

44+Cabal-Version: >= 1.22

45+

45Build-type: Custom

46Build-type: Custom

46

47

47Tested-With: GHC == 7.10.3, GHC == 8.0.1

48Tested-With: GHC == 7.10.3, GHC == 8.0.1

48

49

49−-- NOTE: due to https://github.com/haskell/cabal/issues/6125 the use of ** is

50−-- heavily discouraged.

51Data-files: idrisdoc/styles.css

50Data-files: idrisdoc/styles.css

52− jsrts/jsbn/*.js

51+ jsrts/jsbn/jsbn-browser.js

53− jsrts/*.js

52+ jsrts/jsbn/jsbn-node.js

53+ jsrts/Runtime-common.js

54+ jsrts/Runtime-javascript.js

55+ jsrts/Runtime-node.js

54 jsrts/jsbn/LICENSE

56 jsrts/jsbn/LICENSE

55− rts/Makefile

56− rts/*.c

57− rts/seL4/*.c

58− rts/arduino/*.c

57+ rts/arduino/idris_main.c

59− rts/windows/*.c

58+ rts/idris_bitstring.c

60− rts/windows/*.h

59+ rts/idris_bitstring.h

61− rts/*.h

60+ rts/idris_gc.c

62− rts/seL4/CMakeLists.txt

61+ rts/idris_gc.h

63− rts/seL4/README.md

62+ rts/idris_gmp.c

63+ rts/idris_gmp.h

64+ rts/idris_heap.c

65+ rts/idris_heap.h

66+ rts/idris_main.c

67+ rts/idris_net.c

68+ rts/idris_net.h

69+ rts/idris_opts.c

70+ rts/idris_opts.h

71+ rts/idris_rts.c

72+ rts/idris_rts.h

73+ rts/idris_stats.c

74+ rts/idris_stats.h

75+ rts/idris_stdfgn.c

76+ rts/idris_stdfgn.h

77+ rts/mini-gmp.c

78+ rts/mini-gmp.h

79+ rts/libtest.c

64

80

65Extra-doc-files:

81Extra-doc-files:

66 CHANGELOG.md

82 CHANGELOG.md

@@ -70,75 +86,13 @@ Extra-doc-files:

70 README.md

86 README.md

71 RELEASE-CHECKS.md

87 RELEASE-CHECKS.md

72 idris-tutorial.pdf

88 idris-tutorial.pdf

73− man/idris.1

74 samples/effects/*.idr

89 samples/effects/*.idr

75 samples/misc/*.idr

90 samples/misc/*.idr

76− samples/tutorial/*.idr

77− samples/ST/*.idr

78− samples/ST/Graphics/*.idr

79− samples/ST/Net/*.idr

80 samples/misc/*.lidr

91 samples/misc/*.lidr

92+ samples/tutorial/*.idr

81

93

82-- extra-source-files is generated by Setup.hs using `git --ls-files`.

94-- extra-source-files is generated by Setup.hs using `git --ls-files`.

83Extra-source-files:

95Extra-source-files:

84− Makefile

85− config.mk

86− custom.mk-alldeps

87− mkpkg.sh

88− stack-shell.nix

89− stack.yaml

90− stylize.sh

91− win-release.sh

92−

93− benchmarks/*.pl

94− benchmarks/fasta/*.idr

95− benchmarks/fasta/*.ipkg

96− benchmarks/pidigits/*.idr

97− benchmarks/pidigits/*.ipkg

98− benchmarks/quasigroups/*.idr

99− benchmarks/quasigroups/*.ipkg

100− benchmarks/trivial/*.idr

101− benchmarks/trivial/*.ipkg

102− benchmarks/quasigroups/board

103−

104− icons/*.png

105− icons/*.ico

106− icons/*.rc

107− icons/*.svg

108− icons/*.xml

109−

110− libs/**/*.idr

111− libs/**/*.ipkg

112− libs/**/*.txt

113− libs/Makefile

114− libs/base/Makefile

115− libs/contrib/Makefile

116− libs/effects/Makefile

117− libs/prelude/Makefile

118− libs/pruviloj/Makefile

119−

120− scripts/generate-multi-ghc-travis-template

121− scripts/runidris

122− scripts/runidris-node

123−

124− src/.ghci

125−

126− test/*.md

127− test/*.hs

128− test/**/*.idr

129− test/**/*.lidr

130− test/**/*.ipkg

131− test/**/*.out

132− test/**/*.sh

133− test/**/*.c

134− test/**/*.h

135− test/**/*.in

136− test/**/*.txt

137− test/**/*.js

138− test/base001/Makefile

139− test/ffi004/theOtherType

140− test/ffi004/theType

141− test/scripts/timeout

142

96

143source-repository head

97source-repository head

144 type: git

98 type: git

@@ -146,7 +100,7 @@ source-repository head

146

100

147custom-setup

101custom-setup

148 setup-depends:

102 setup-depends:

149− Cabal >= 2.4 && < 3.1,

103+ Cabal >= 1.10 && <2.5,

150 base >= 4 && <5,

104 base >= 4 && <5,

151 directory,

105 directory,

152 filepath,

106 filepath,

@@ -307,29 +261,26 @@ Library

307 Util.Pretty

261 Util.Pretty

308 , Util.Net

262 , Util.Net

309

263

264+

265+

266+ -- Auto Generated

310 , Paths_idris

267 , Paths_idris

311 , Version_idris

268 , Version_idris

312 , Tools_idris

269 , Tools_idris

313 , BuildFlags_idris

270 , BuildFlags_idris

314

271

315− -- Auto Generated

316− Autogen-modules: Paths_idris

317− , Version_idris

318− , Tools_idris

319− , BuildFlags_idris

320−

321 Build-depends: base >=4 && <5

272 Build-depends: base >=4 && <5

322 , aeson >= 0.6 && < 1.5

273 , aeson >= 0.6 && < 1.5

323 , annotated-wl-pprint >= 0.7 && < 0.8

274 , annotated-wl-pprint >= 0.7 && < 0.8

324− , ansi-terminal < 0.11

275+ , ansi-terminal < 0.10

325 , ansi-wl-pprint < 0.7

276 , ansi-wl-pprint < 0.7

326 , array >= 0.4.0.1 && < 0.6

277 , array >= 0.4.0.1 && < 0.6

327 , base64-bytestring < 1.1

278 , base64-bytestring < 1.1

328 , binary >= 0.8.4.1 && < 0.9

279 , binary >= 0.8.4.1 && < 0.9

329 , blaze-html >= 0.6.1.3 && < 0.10

280 , blaze-html >= 0.6.1.3 && < 0.10

330− , blaze-markup >= 0.5.2.1 && < 0.10

281+ , blaze-markup >= 0.5.2.1 && < 0.9

331 , bytestring < 0.11

282 , bytestring < 0.11

332− , cheapskate >= 0.1.1.2 && < 0.2

283+ , cheapskate >= 0.1.1 && < 0.2

333 , code-page >= 0.1 && < 0.3

284 , code-page >= 0.1 && < 0.3

334 , containers >= 0.5 && < 0.7

285 , containers >= 0.5 && < 0.7

335 , deepseq < 1.5

286 , deepseq < 1.5

@@ -338,10 +289,10 @@ Library

338 , fingertree >= 0.1.4.1 && < 0.2

289 , fingertree >= 0.1.4.1 && < 0.2

339 , haskeline >= 0.7 && < 0.8

290 , haskeline >= 0.7 && < 0.8

340 , ieee754 >= 0.7 && < 0.9

291 , ieee754 >= 0.7 && < 0.9

341− , megaparsec >= 7.0.4 && < 9

292+ , megaparsec >= 7.0.4 && < 8

342 , mtl >= 2.1 && < 2.3

293 , mtl >= 2.1 && < 2.3

343− , network >= 2.7 && < 3.1.2

294+ , network >= 2.7 && < 2.9

344− , optparse-applicative >= 0.13 && < 0.16

295+ , optparse-applicative >= 0.13 && < 0.15

345 , parser-combinators >= 1.0.0

296 , parser-combinators >= 1.0.0

346 , pretty < 1.2

297 , pretty < 1.2

347 , process < 1.7

298 , process < 1.7

@@ -349,8 +300,8 @@ Library

349 , safe >= 0.3.9

300 , safe >= 0.3.9

350 , split < 0.3

301 , split < 0.3

351 , terminal-size < 0.4

302 , terminal-size < 0.4

352− , text >=1.2.1.0 && < 1.4

303+ , text >=1.2.1.0 && < 1.3

353− , time >= 1.4 && < 2.0

304+ , time >= 1.4 && < 1.9

354 , transformers >= 0.5 && < 0.6

305 , transformers >= 0.5 && < 0.6

355 , uniplate >=1.6 && < 1.7

306 , uniplate >=1.6 && < 1.7

356 , unordered-containers < 0.3

307 , unordered-containers < 0.3

@@ -358,12 +309,11 @@ Library

358 , vector < 0.13

309 , vector < 0.13

359 , vector-binary-instances < 0.3

310 , vector-binary-instances < 0.3

360 , zip-archive > 0.2.3.5 && < 0.5

311 , zip-archive > 0.2.3.5 && < 0.5

361− , fsnotify >= 0.2 && < 0.4

312+ , fsnotify >= 0.2 && < 2.2

362 , async < 2.3

313 , async < 2.3

363

314

364 if !impl(ghc >= 8.0)

315 if !impl(ghc >= 8.0)

365− Build-Depends: semigroups == 0.18.*

316+ Build-Depends: semigroups == 0.18.*

366− , fail == 4.9.0.*

367

317

368 Default-Language: Haskell2010

318 Default-Language: Haskell2010

369 ghc-prof-options: -auto-all -caf-all

319 ghc-prof-options: -auto-all -caf-all

@@ -382,7 +332,6 @@ Library

382 cpp-options: -DIDRIS_GMP

332 cpp-options: -DIDRIS_GMP

383 if flag(freestanding)

333 if flag(freestanding)

384 other-modules: Target_idris

334 other-modules: Target_idris

385− autogen-modules: Target_idris

386 cpp-options: -DFREESTANDING

335 cpp-options: -DFREESTANDING

387 if flag(CI)

336 if flag(CI)

388 ghc-options: -Werror

337 ghc-options: -Werror

@@ -416,7 +365,7 @@ Test-suite regression-and-feature-tests

416 , filepath

365 , filepath

417 , directory

366 , directory

418 , haskeline >= 0.7

367 , haskeline >= 0.7

419− , optparse-applicative >= 0.13 && < 0.16

368+ , optparse-applicative >= 0.13 && < 0.15

420 , tagged

369 , tagged

421 , tasty >= 0.8

370 , tasty >= 0.8

422 , tasty-golden >= 2.0

371 , tasty-golden >= 2.0

@@ -431,7 +380,6 @@ Test-suite regression-and-feature-tests

431

380

432Executable idris-codegen-c

381Executable idris-codegen-c

433 Main-is: Main.hs

382 Main-is: Main.hs

434− autogen-modules: Paths_idris

435 other-modules: Paths_idris

383 other-modules: Paths_idris

436 hs-source-dirs: codegen/idris-codegen-c

384 hs-source-dirs: codegen/idris-codegen-c

437

385

@@ -447,7 +395,6 @@ Executable idris-codegen-c

447

395

448Executable idris-codegen-javascript

396Executable idris-codegen-javascript

449 Main-is: Main.hs

397 Main-is: Main.hs

450− autogen-modules: Paths_idris

451 other-modules: Paths_idris

398 other-modules: Paths_idris

452 hs-source-dirs: codegen/idris-codegen-javascript

399 hs-source-dirs: codegen/idris-codegen-javascript

453

400

@@ -463,7 +410,6 @@ Executable idris-codegen-javascript

463

410

464Executable idris-codegen-node

411Executable idris-codegen-node

465 Main-is: Main.hs

412 Main-is: Main.hs

466− autogen-modules: Paths_idris

467 other-modules: Paths_idris

413 other-modules: Paths_idris

468 hs-source-dirs: codegen/idris-codegen-node

414 hs-source-dirs: codegen/idris-codegen-node

469

415

libs/base/Control/Isomorphism.idr+23−20

@@ -17,22 +17,21 @@ record Iso a b where

17

18-- Isomorphism properties

19

20−||| Isomorphism is reflexive

20+||| Isomorphism is Reflexive

21isoRefl : Iso a a

22−isoRefl = MkIso id id (\_ => Refl) (\_ => Refl)

22+isoRefl = MkIso id id (\x => Refl) (\x => Refl)

23

24||| Isomorphism is transitive

25isoTrans : Iso a b -> Iso b c -> Iso a c

26isoTrans (MkIso to from toFrom fromTo) (MkIso to' from' toFrom' fromTo') =

27− MkIso xto xfrom xtoFrom xfromTo where

27+ MkIso (\x => to' (to x))

28− xto : a -> c

28+ (\y => from (from' y))

29− xto = to' . to

29+ (\y => (to' (to (from (from' y)))) ={ cong (toFrom (from' y)) }=

30− xfrom : c -> a

31− xfrom = from . from'

32− xtoFrom : (z : c) -> xto (xfrom z) = z

33− xtoFrom z = rewrite toFrom $ from' z in toFrom' z

30+ (to' (from' y)) ={ toFrom' y }=

34− xfromTo : (x : a) -> xfrom (xto x) = x

31+ y QED)

32+ (\x => (from (from' (to' (to x)))) ={ cong (fromTo' (to x)) }=

35− xfromTo x = rewrite fromTo' (to x) in fromTo x

33+ (from (to x)) ={ fromTo x }=

34+ x QED)

36

35

37Category Iso where

36Category Iso where

38 id = isoRefl

37 id = isoRefl

@@ -100,7 +99,8 @@ eitherBotRight = isoTrans eitherComm eitherBotLeft

100

99

101||| Isomorphism is a congruence with regards to disjunction

100||| Isomorphism is a congruence with regards to disjunction

102eitherCong : Iso a a' -> Iso b b' -> Iso (Either a b) (Either a' b')

101eitherCong : Iso a a' -> Iso b b' -> Iso (Either a b) (Either a' b')

102+eitherCong {a = a} {a' = a'} {b = b} {b' = b'}

103−eitherCong (MkIso to from toFrom fromTo)

103+ (MkIso to from toFrom fromTo)

104 (MkIso to' from' toFrom' fromTo') =

105 MkIso (eitherMap to to') (eitherMap from from') ok1 ok2

106 where eitherMap : (c -> c') -> (d -> d') -> Either c d -> Either c' d'

@@ -143,7 +143,9 @@ pairAssoc = MkIso to from ok1 ok2

143

144||| Conjunction with truth is a no-op

145pairUnitRight : Iso (a, ()) a

146−pairUnitRight = MkIso fst (\x => (x, ())) (\_ => Refl) (\(_, ()) => Refl)

146+pairUnitRight = MkIso fst (\x => (x, ())) (\x => Refl) ok

147+ where ok : (x : (a, ())) -> (fst x, ()) = x

148+ ok (x, ()) = Refl

147

149

148||| Conjunction with truth is a no-op

150||| Conjunction with truth is a no-op

149pairUnitLeft : Iso ((), a) a

151pairUnitLeft : Iso ((), a) a

@@ -159,7 +161,8 @@ pairBotRight = isoTrans pairComm pairBotLeft

159

161

160||| Isomorphism is a congruence with regards to conjunction

162||| Isomorphism is a congruence with regards to conjunction

161pairCong : Iso a a' -> Iso b b' -> Iso (a, b) (a', b')

163pairCong : Iso a a' -> Iso b b' -> Iso (a, b) (a', b')

164+pairCong {a = a} {a' = a'} {b = b} {b' = b'}

162−pairCong (MkIso to from toFrom fromTo)

165+ (MkIso to from toFrom fromTo)

163 (MkIso to' from' toFrom' fromTo') =

166 (MkIso to' from' toFrom' fromTo') =

164 MkIso to'' from'' iso1 iso2

167 MkIso to'' from'' iso1 iso2

165 where to'' : (a, b) -> (a', b')

168 where to'' : (a, b) -> (a', b')

@@ -202,7 +205,7 @@ distribLeft = MkIso to from toFrom fromTo

202

205

203||| Products distribute over sums

206||| Products distribute over sums

204distribRight : Iso (a, Either b c) (Either (a, b) (a, c))

207distribRight : Iso (a, Either b c) (Either (a, b) (a, c))

205−distribRight = (pairComm `isoTrans` distribLeft) `isoTrans` eitherCong pairComm pairComm

208+distribRight {a} {b} {c} = (pairComm `isoTrans` distribLeft) `isoTrans` eitherCong pairComm pairComm

206

209

207

210

208-- Enable preorder reasoning syntax over isomorphisms

211-- Enable preorder reasoning syntax over isomorphisms

@@ -219,7 +222,7 @@ step a iso1 iso2 = isoTrans iso1 iso2

219-- Isomorphisms over Maybe

222-- Isomorphisms over Maybe

220||| Isomorphism is a congruence with respect to Maybe

223||| Isomorphism is a congruence with respect to Maybe

221maybeCong : Iso a b -> Iso (Maybe a) (Maybe b)

224maybeCong : Iso a b -> Iso (Maybe a) (Maybe b)

222−maybeCong (MkIso to from toFrom fromTo) = MkIso (map to) (map from) ok1 ok2

225+maybeCong {a} {b} (MkIso to from toFrom fromTo) = MkIso (map to) (map from) ok1 ok2

223 where ok1 : (y : Maybe b) -> map to (map from y) = y

226 where ok1 : (y : Maybe b) -> map to (map from y) = y

224 ok1 Nothing = Refl

227 ok1 Nothing = Refl

225 ok1 (Just x) = (Just (to (from x))) ={ cong (toFrom x) }= (Just x) QED

228 ok1 (Just x) = (Just (to (from x))) ={ cong (toFrom x) }= (Just x) QED

@@ -250,7 +253,7 @@ maybeVoidUnit = (Maybe Void) ={ maybeEither }=

250 () QED

253 () QED

251

254

252eitherMaybeLeftMaybe : Iso (Either (Maybe a) b) (Maybe (Either a b))

255eitherMaybeLeftMaybe : Iso (Either (Maybe a) b) (Maybe (Either a b))

253−eitherMaybeLeftMaybe =

256+eitherMaybeLeftMaybe {a} {b} =

254 (Either (Maybe a) b) ={ eitherCongLeft maybeEither }=

257 (Either (Maybe a) b) ={ eitherCongLeft maybeEither }=

255 (Either (Either a ()) b) ={ eitherAssoc }=

258 (Either (Either a ()) b) ={ eitherAssoc }=

256 (Either a (Either () b)) ={ eitherCongRight eitherComm }=

259 (Either a (Either () b)) ={ eitherCongRight eitherComm }=

@@ -260,7 +263,7 @@ eitherMaybeLeftMaybe =

260

263

261

264

262eitherMaybeRightMaybe : Iso (Either a (Maybe b)) (Maybe (Either a b))

265eitherMaybeRightMaybe : Iso (Either a (Maybe b)) (Maybe (Either a b))

263−eitherMaybeRightMaybe =

266+eitherMaybeRightMaybe {a} {b} =

264 (Either a (Maybe b)) ={ eitherComm }=

267 (Either a (Maybe b)) ={ eitherComm }=

265 (Either (Maybe b) a) ={ eitherMaybeLeftMaybe }=

268 (Either (Maybe b) a) ={ eitherMaybeLeftMaybe }=

266 (Maybe (Either b a)) ={ maybeCong eitherComm }=

269 (Maybe (Either b a)) ={ maybeCong eitherComm }=

@@ -285,8 +288,8 @@ maybeIsoS = MkIso forth back fb bf

285 fb (FS x) = Refl

288 fb (FS x) = Refl

286

289

287finZeroBot : Iso (Fin 0) Void

290finZeroBot : Iso (Fin 0) Void

288−finZeroBot = MkIso (void . uninhabited)

291+finZeroBot = MkIso (\x => void (uninhabited x))

289− void

292+ (\x => void x)

290 (\x => void x)

293 (\x => void x)

291 (\x => void (uninhabited x))

294 (\x => void (uninhabited x))

292

295

libs/base/Data/Fin.idr−9

@@ -65,11 +65,6 @@ weakenN : (n : Nat) -> Fin m -> Fin (m + n)

65weakenN n FZ = FZ

66weakenN n (FS f) = FS (weakenN n f)

67

68−||| Weaken the bound on a Fin using an inequality proof

69−weakenLTE : LTE n m -> Fin n -> Fin m

70−weakenLTE (LTESucc p) FZ = FZ

71−weakenLTE (LTESucc p) (FS f) = FS $ weakenLTE p f

72−

73||| Attempt to tighten the bound on a Fin.

68||| Attempt to tighten the bound on a Fin.

74||| Return `Left` if the bound could not be tightened, or `Right` if it could.

69||| Return `Left` if the bound could not be tightened, or `Right` if it could.

75strengthen : Fin (S n) -> Either (Fin (S n)) (Fin n)

70strengthen : Fin (S n) -> Either (Fin (S n)) (Fin n)

@@ -106,10 +101,6 @@ implementation MinBound (Fin (S n)) where

106implementation MaxBound (Fin (S n)) where

101implementation MaxBound (Fin (S n)) where

107 maxBound = last

102 maxBound = last

108

103

109−||| Add two Fins

110−addFin : (x : Fin n) -> (y : Fin m) -> Fin (finToNat x + m)

111−addFin FZ y = y

112−addFin (FS x) y = FS $ addFin x y

113

104

114-- Construct a Fin from an integer literal which must fit in the given Fin

105-- Construct a Fin from an integer literal which must fit in the given Fin

115

106

libs/base/Data/List/Quantifiers.idr−5

@@ -75,8 +75,3 @@ all d (x::xs) with (d x)

75 case all d xs of

76 Yes prf' => Yes (prf :: prf')

77 No prf' => No (notAllThere prf')

78−

79−||| Given a proof of membership for some element, extract the property proof for it

80−indexAll : Elem x xs -> All p xs -> p x

81−indexAll Here (p::_ ) = p

82−indexAll (There e) ( _::ps) = indexAll e ps

libs/base/Data/So.idr+1−11

@@ -12,7 +12,7 @@ module Data.So

12||| If you find yourself using `So` for something other than primitive types,

13||| it may be appropriate to define a type of evidence for the property that you

14||| care about instead.

15−data So : Bool -> Type where

15+data So : Bool -> Type where

16 Oh : So True

17

18implementation Uninhabited (So False) where

@@ -23,14 +23,4 @@ choose : (b : Bool) -> Either (So b) (So (not b))

23choose True = Left Oh

24choose False = Right Oh

25

26−||| Absurd when you have proof that both `b` and `not b` is true.

27−export

28−soAbsurd : So b -> So (not b) -> Void

29−soAbsurd sb snb with (sb)

30− | Oh = uninhabited snb

31−

32−||| Transmission between usage of value-level `not` and type-level `Not`.

33−export

34−soNotToNotSo : So (not b) -> Not (So b)

35−soNotToNotSo = flip soAbsurd

36

26

libs/contrib/Control/Algebra/Laws.idr+80−128

@@ -6,146 +6,98 @@ import Interfaces.Verified

6

7%access export

8

9−||| -(-x) = x in any verified group.

10−inverseSquaredIsIdentity : VerifiedGroup t => (x : t) ->

11− inverse (inverse x) = x

12−inverseSquaredIsIdentity x =

13− let

14− ix = inverse x

15− iix = inverse ix

16− in

17− rewrite sym $ monoidNeutralIsNeutralR iix in

18− rewrite sym $ groupInverseIsInverseL x in

19− rewrite sym $ semigroupOpIsAssociative x ix iix in

20− rewrite groupInverseIsInverseL ix in

21− monoidNeutralIsNeutralL x

22−

23−||| -0 = 0 in any verified group.

9+||| A prof that -0 = 0 in any verified group.

24−inverseNeutralIsNeutral : VerifiedGroup t =>

10+inverseNeutralIsNeutral : VerifiedGroup t => inverse (the t A.neutral) = A.neutral

25− inverse (the t A.neutral) = A.neutral

26inverseNeutralIsNeutral {t} =

11inverseNeutralIsNeutral {t} =

27− let e = the t neutral in

12+ let zero = the t neutral

13+ step1 = cong {f = (<+> inverse zero)} (the (zero = zero) Refl)

28− rewrite sym $ cong {f = inverse} (groupInverseIsInverseL e) in

14+ step2 = replace {P = \x => zero <+> inverse zero = x} (groupInverseIsInverseL zero) step1

15+ in

29− rewrite monoidNeutralIsNeutralR $ inverse e in

16+ replace {P = \x => x = neutral} (monoidNeutralIsNeutralR $ inverse zero) step2

30− inverseSquaredIsIdentity e

31

17

32−||| -(x + y) = -y + -x in any verified group.

18+||| A proof that -(-x) = x in any verified group.

33−inverseOfSum : VerifiedGroup t => (l, r : t) ->

19+inverseSquaredIsIdentity : VerifiedGroup t => (x : t) -> inverse (inverse x) = x

34− inverse (l <+> r) = inverse r <+> inverse l

20+inverseSquaredIsIdentity {t} x =

35−inverseOfSum {t} l r =

36− let

37− e = the t neutral

21+ let zero = the t neutral

38− il = inverse l

22+ step1 = cong {f = (x <+>)} (groupInverseIsInverseL (inverse x))

39− ir = inverse r

23+ step2 = replace {P = \r => r = x <+> neutral} (semigroupOpIsAssociative x (inverse x) (inverse $ inverse x)) step1

40− sum = l <+> r

24+ step3 = replace {P = \r => r <+> inverse (inverse x) = x <+> neutral} (groupInverseIsInverseL x) step2

41− ilr = inverse sum

42− iril = ir <+> il

43− ile = il <+> e

44− in

45− -- expand

46− rewrite sym $ monoidNeutralIsNeutralR ilr in

25+ step4 = replace {P = \r => r = x <+> neutral} (monoidNeutralIsNeutralR (inverse $ inverse x)) step3

47− rewrite sym $ groupInverseIsInverseR r in

26+ in

48− rewrite sym $ monoidNeutralIsNeutralL ir in

49− rewrite sym $ groupInverseIsInverseR l in

50− -- shuffle

51− rewrite semigroupOpIsAssociative ir il l in

52− rewrite sym $ semigroupOpIsAssociative iril l r in

53− rewrite sym $ semigroupOpIsAssociative iril sum ilr in

54− -- contract

55− rewrite sym $ monoidNeutralIsNeutralL il in

56− rewrite groupInverseIsInverseL sum in

57− rewrite sym $ semigroupOpIsAssociative (ir <+> ile) l ile in

58− rewrite semigroupOpIsAssociative l il e in

59− rewrite groupInverseIsInverseL l in

60− rewrite monoidNeutralIsNeutralL e in

27+ replace {P = \r => inverse (inverse x) = r} (monoidNeutralIsNeutralL x) step4

61− Refl

62

28

63−||| -(x + y) = -x + -y in any verified abelian group.

29+||| A proof that -(x + y) = -x - y in any verified abelian group.

64−inverseDistributesOverGroupOp : VerifiedAbelianGroup t => (l, r : t) ->

30+inverseDistributesOverGroupOp : VerifiedAbelianGroup t => (l, r : t) -> inverse (l <+> r) = inverse l <+> inverse r

65− inverse (l <+> r) = inverse l <+> inverse r

66−inverseDistributesOverGroupOp l r =

31+inverseDistributesOverGroupOp {t} l r =

32+ let step1 = replace {P = \x => x = neutral} (sym $ groupInverseIsInverseL (l <+> r)) $ the (the t neutral = neutral) Refl

33+ step2 = cong {f = ((inverse r) <+>) . ((inverse l) <+>)} step1

34+ step3 = replace {P = \x => inverse r <+> (inverse l <+> (l <+> r <+> inverse (l <+> r))) = inverse r <+> x} (monoidNeutralIsNeutralL (inverse l)) step2

35+ step4 = replace {P = \x => x = inverse r <+> inverse l} (semigroupOpIsAssociative (inverse r) (inverse l) (l <+> r <+> inverse (l <+> r))) step3

36+ step5 = replace {P = \x => x = inverse r <+> inverse l} (semigroupOpIsAssociative (inverse r <+> inverse l) (l <+> r) (inverse (l <+> r))) step4

37+ step6 = replace {P = \x => x <+> inverse (l <+> r) = inverse r <+> inverse l} (semigroupOpIsAssociative (inverse r <+> inverse l) l r) step5

38+ step7 = replace {P = \x => x <+> r <+> inverse (l <+> r) = inverse r <+> inverse l} (sym $ semigroupOpIsAssociative (inverse r) (inverse l) l) step6

39+ step8 = replace {P = \x => inverse r <+> x <+> r <+> inverse (l <+> r) = inverse r <+> inverse l} (groupInverseIsInverseR l) step7

40+ step9 = replace {P = \x => x <+> r <+> inverse (l <+> r) = inverse r <+> inverse l} (monoidNeutralIsNeutralL (inverse r)) step8

41+ step10 = replace {P = \x => x <+> inverse (l <+> r) = inverse r <+> inverse l} (groupInverseIsInverseR r) step9

42+ step11 = replace {P = \x => x = inverse r <+> inverse l} (monoidNeutralIsNeutralR (inverse (l <+> r))) step10

43+ in

67− rewrite abelianGroupOpIsCommutative (inverse l) (inverse r) in

44+ replace {P = \x => inverse (l <+> r) = x} (abelianGroupOpIsCommutative (inverse r) (inverse l)) step11

68− inverseOfSum l r

69

45

70−||| Anything multiplied by zero yields zero back in a verified ring.

46+||| A proof that anything multiplied by zero yields zero back.

71−multNeutralAbsorbingL : VerifiedRing t => (r : t) ->

47+multNeutralAbsorbingL : VerifiedRingWithUnity t => (r : t) -> A.neutral <.> r = A.neutral

72− A.neutral <.> r = A.neutral

73−multNeutralAbsorbingL {t} r =

48+multNeutralAbsorbingL r =

74− let

49+ let step1 = the (unity <.> r = r) (ringWithUnityIsUnityR r)

75− e = the t neutral

76− ir = inverse r

77− exr = e <.> r

78− iexr = inverse exr

79− in

80− rewrite sym $ monoidNeutralIsNeutralR exr in

50+ step2 = replace {P = \x => x <.> r = r} (sym $ monoidNeutralIsNeutralR unity) step1

81− rewrite sym $ groupInverseIsInverseR exr in

82− rewrite sym $ semigroupOpIsAssociative iexr exr ((iexr <+> exr) <.> r) in

83− rewrite groupInverseIsInverseR exr in

84− rewrite sym $ ringOpIsDistributiveR e e r in

51+ step3 = replace {P = \x => x = r} (ringOpIsDistributiveR neutral unity r) step2

85− rewrite monoidNeutralIsNeutralR e in

52+ step4 = replace {P = \x => neutral <.> r <+> x = r} (ringWithUnityIsUnityR r) step3

86− groupInverseIsInverseR exr

53+ step5 = cong {f = \x => x <+> inverse r} step4

54+ step6 = replace {P = \x => x = r <+> inverse r} (sym $ semigroupOpIsAssociative (neutral <.> r) r (inverse r)) step5

55+ step7 = replace {P = \x => neutral <.> r <+> x = x} (groupInverseIsInverseL r) step6

56+ in

57+ replace {P = \x => x = neutral} (monoidNeutralIsNeutralL (neutral <.> r)) step7

87

58

88−||| Anything multiplied by zero yields zero back in a verified ring.

59+||| A proof that anything multiplied by zero yields zero back.

89−multNeutralAbsorbingR : VerifiedRing t => (l : t) ->

60+multNeutralAbsorbingR : VerifiedRingWithUnity t => (l : t) -> l <.> A.neutral = A.neutral

90− l <.> A.neutral = A.neutral

91−multNeutralAbsorbingR {t} l =

61+multNeutralAbsorbingR l =

92− let

62+ let step1 = the (l <.> unity = l) (ringWithUnityIsUnityL l)

93− e = the t neutral

63+ step2 = replace {P = \x => l <.> x = l} (sym $ monoidNeutralIsNeutralR unity) step1

94− il = inverse l

95− lxe = l <.> e

96− ilxe = inverse lxe

97− in

98− rewrite sym $ monoidNeutralIsNeutralL lxe in

99− rewrite sym $ groupInverseIsInverseL lxe in

100− rewrite semigroupOpIsAssociative (l <.> (lxe <+> ilxe)) lxe ilxe in

101− rewrite groupInverseIsInverseL lxe in

102− rewrite sym $ ringOpIsDistributiveL l e e in

64+ step3 = replace {P = \x => x = l} (ringOpIsDistributiveL l neutral unity) step2

65+ step4 = replace {P = \x => l <.> neutral <+> x = l} (ringWithUnityIsUnityL l) step3

66+ step5 = cong {f = \x => x <+> inverse l} step4

67+ step6 = replace {P = \x => x = l <+> inverse l} (sym $ semigroupOpIsAssociative (l <.> neutral) l (inverse l)) step5

68+ step7 = replace {P = \x => l <.> neutral <+> x = x} (groupInverseIsInverseL l) step6

69+ in

103− rewrite monoidNeutralIsNeutralL e in

70+ replace {P = \x => x = neutral} (monoidNeutralIsNeutralL (l <.> neutral)) step7

104− groupInverseIsInverseL lxe

105

71

106−||| Inverse operator can be extracted before multiplication.

72+||| A proof that inverse operator can be extracted before multiplication

107||| (-x)y = -(xy)

73||| (-x)y = -(xy)

108−multInverseInversesL : VerifiedRing t => (l, r : t) ->

74+multInverseInversesL : VerifiedRingWithUnity t => (l, r : t) -> inverse l <.> r = inverse (l <.> r)

109− inverse l <.> r = inverse (l <.> r)

110multInverseInversesL l r =

75multInverseInversesL l r =

111− let

112− il = inverse l

113− lxr = l <.> r

114− ilxr = il <.> r

115− i_lxr = inverse lxr

116− in

117− rewrite sym $ monoidNeutralIsNeutralR ilxr in

118− rewrite sym $ groupInverseIsInverseR lxr in

119− rewrite sym $ semigroupOpIsAssociative i_lxr lxr ilxr in

120− rewrite sym $ ringOpIsDistributiveR l il r in

121− rewrite groupInverseIsInverseL l in

76+ let step1 = replace {P = \x => x <.> r = neutral} (sym $ groupInverseIsInverseL l) (multNeutralAbsorbingL r)

122− rewrite multNeutralAbsorbingL r in

77+ step2 = replace {P = \x => x = neutral} (ringOpIsDistributiveR l (inverse l) r) step1

78+ step3 = cong {f = ((inverse (l <.> r)) <+>)} step2

123− monoidNeutralIsNeutralL i_lxr

79+ step4 = replace {P = \x => inverse (l <.> r) <+> (l <.> r <+> inverse l <.> r) = x} (monoidNeutralIsNeutralL (inverse (l <.> r))) step3

80+ step5 = replace {P = \x => x = inverse (l <.> r)} (semigroupOpIsAssociative (inverse (l <.> r)) (l <.> r) (inverse l <.> r)) step4

81+ step6 = replace {P = \x => x <+> inverse l <.> r = inverse (l <.> r)} (groupInverseIsInverseR (l <.> r)) step5

82+ in

83+ replace {P = \x => x = inverse (l <.> r)} (monoidNeutralIsNeutralR (inverse l <.> r)) step6

124

84

125−||| Inverse operator can be extracted before multiplication.

85+||| A proof that inverse operator can be extracted before multiplication

126||| x(-y) = -(xy)

86||| x(-y) = -(xy)

127−multInverseInversesR : VerifiedRing t => (l, r : t) ->

87+multInverseInversesR : VerifiedRingWithUnity t => (l, r : t) -> l <.> inverse r = inverse (l <.> r)

128− l <.> inverse r = inverse (l <.> r)

129multInverseInversesR l r =

88multInverseInversesR l r =

130− let

131− ir = inverse r

132− lxr = l <.> r

133− lxir = l <.> ir

134− ilxr = inverse lxr

135− in

136− rewrite sym $ monoidNeutralIsNeutralL lxir in

137− rewrite sym $ groupInverseIsInverseL lxr in

89+ let step1 = replace {P = \x => l <.> x = neutral} (sym $ groupInverseIsInverseL r) (multNeutralAbsorbingR l)

138− rewrite semigroupOpIsAssociative lxir lxr ilxr in

139− rewrite sym $ ringOpIsDistributiveL l ir r in

90+ step2 = replace {P = \x => x = neutral} (ringOpIsDistributiveL l r (inverse r)) step1

91+ step3 = cong {f = ((inverse (l <.> r)) <+>)} step2

92+ step4 = replace {P = \x => inverse (l <.> r) <+> (l <.> r <+> l <.> inverse r) = x} (monoidNeutralIsNeutralL (inverse (l <.> r))) step3

93+ step5 = replace {P = \x => x = inverse (l <.> r)} (semigroupOpIsAssociative (inverse (l <.> r)) (l <.> r) (l <.> inverse r)) step4

140− rewrite groupInverseIsInverseR r in

94+ step6 = replace {P = \x => x <+> l <.> inverse r = inverse (l <.> r)} (groupInverseIsInverseR (l <.> r)) step5

141− rewrite multNeutralAbsorbingR l in

95+ in

142− monoidNeutralIsNeutralR ilxr

96+ replace {P = \x => x = inverse (l <.> r)} (monoidNeutralIsNeutralR (l <.> inverse r)) step6

143

97

144−||| Multiplication of inverses is the same as multiplication of

98+||| A proof that multiplication of inverses is the same as multiplication of original

145−||| original elements.

99+||| elements. (-x)(-y) = xy

146−||| (-x)(-y) = xy

147−multNegativeByNegativeIsPositive : VerifiedRing t => (l, r : t) ->

100+multNegativeByNegativeIsPositive : VerifiedRingWithUnity t => (l, r : t) -> inverse l <.> inverse r = l <.> r

148− inverse l <.> inverse r = l <.> r

149multNegativeByNegativeIsPositive l r =

101multNegativeByNegativeIsPositive l r =

150 rewrite multInverseInversesR (inverse l) r in

102 rewrite multInverseInversesR (inverse l) r in

151 rewrite sym $ multInverseInversesL (inverse l) r in

103 rewrite sym $ multInverseInversesL (inverse l) r in

libs/contrib/Data/Combinators.idr+2−2

@@ -26,13 +26,13 @@ infixl 9 ...

26(...) = (.) . (.)

27

28||| Warbler, as named in "To Mock a Mockingbird".

29−||| See https://code.jsoftware.com/wiki/Vocabulary/tilde

29+||| See http://code.jsoftware.com/wiki/Vocabulary/tilde

30||| Equivalent to `join` on the Reader monad (`(->) e` in Haskell)

31reflex : (a -> a -> b) -> (a -> b)

32reflex f x = f x x

33

34||| Phoenix, according to Data.Aviary.

35−||| See https://code.jsoftware.com/wiki/Vocabulary/fork.

35+||| See http://code.jsoftware.com/wiki/Vocabulary/fork.

36||| Equivalent to `liftA2` on the Reader monad (`(->) e` in Haskell)

37fork2 : (b -> c -> d) -> (a -> b) -> (a -> c) -> (a -> d)

38fork2 f g h x = f (g x) (h x)

libs/contrib/Data/List/Extra.idrnew file+46

@@ -0,0 +1,46 @@

1+module Data.List.Extra

2+

3+%default total

4+%access export

5+

6+||| The final segment of the accumulator is the final segment of the result.

7+reverseOntoAcc : (xs, ys, zs : List a) ->

8+ reverseOnto (ys ++ zs) xs = (reverseOnto ys xs) ++ zs

9+reverseOntoAcc [] _ _ = Refl

10+reverseOntoAcc (x :: xs) (ys) (zs) = reverseOntoAcc xs (x :: ys) zs

11+

12+||| Serves as a specification for reverseOnto.

13+reverseOntoSpec : (xs, ys : List a) -> reverseOnto xs ys = reverse ys ++ xs

14+reverseOntoSpec xs ys = reverseOntoAcc ys [] xs

15+

16+||| The reverse of an empty list is an empty list. Together with reverseCons,

17+||| serves as a specification for reverse.

18+reverseNil : reverse [] = []

19+reverseNil = Refl

20+

21+||| The reverse of a cons is the reverse of the tail followed by the head.

22+||| Together with reverseNil serves as a specification for reverse.

23+reverseCons : (x : a) -> (xs : List a) -> reverse (x::xs) = reverse xs ++ [x]

24+reverseCons x xs = reverseOntoSpec [x] xs

25+

26+||| Reversing an append is appending reversals backwards.

27+reverseAppend : (xs, ys : List a) ->

28+ reverse (xs ++ ys) = reverse ys ++ reverse xs

29+reverseAppend [] ys = sym (appendNilRightNeutral (reverse ys))

30+reverseAppend (x :: xs) ys =

31+ rewrite reverseCons x (xs ++ ys) in

32+ rewrite reverseAppend xs ys in

33+ rewrite reverseCons x xs in

34+ sym $ appendAssociative (reverse ys) (reverse xs) [x]

35+

36+||| Reversing a singleton list is a no-op.

37+reverseSingletonId : (x : a) -> reverse [x] = [x]

38+reverseSingletonId _ = Refl

39+

40+||| Reversing a reverse gives the original.

41+reverseReverseId : (xs : List a) -> reverse (reverse xs) = xs

42+reverseReverseId [] = Refl

43+reverseReverseId (x :: xs) =

44+ rewrite reverseCons x xs in

45+ rewrite reverseAppend (reverse xs) [x] in

46+ cong $ reverseReverseId xs

libs/contrib/Data/List/Reverse.idrdeleted−99

@@ -1,99 +0,0 @@

1−||| Properties of the reverse function.

2−module Data.List.Reverse

3−

4−%default total

5−%access export

6−

7−||| The final segment of the accumulator is the final segment of the result.

8−reverseOntoAcc : (xs, ys, zs : List a) ->

9− reverseOnto (ys ++ zs) xs = (reverseOnto ys xs) ++ zs

10−reverseOntoAcc [] _ _ = Refl

11−reverseOntoAcc (x :: xs) (ys) (zs) = reverseOntoAcc xs (x :: ys) zs

12−

13−||| Serves as a specification for reverseOnto.

14−reverseOntoSpec : (xs, ys : List a) -> reverseOnto xs ys = reverse ys ++ xs

15−reverseOntoSpec xs ys = reverseOntoAcc ys [] xs

16−

17−||| The reverse of an empty list is an empty list. Together with reverseCons,

18−||| serves as a specification for reverse.

19−reverseNil : reverse [] = []

20−reverseNil = Refl

21−

22−||| The reverse of a cons is the reverse of the tail followed by the head.

23−||| Together with reverseNil serves as a specification for reverse.

24−reverseCons : (x : a) -> (xs : List a) -> reverse (x::xs) = reverse xs ++ [x]

25−reverseCons x xs = reverseOntoSpec [x] xs

26−

27−||| Reversing an append is appending reversals backwards.

28−reverseAppend : (xs, ys : List a) ->

29− reverse (xs ++ ys) = reverse ys ++ reverse xs

30−reverseAppend [] ys = sym (appendNilRightNeutral (reverse ys))

31−reverseAppend (x :: xs) ys =

32− rewrite reverseCons x (xs ++ ys) in

33− rewrite reverseAppend xs ys in

34− rewrite reverseCons x xs in

35− sym $ appendAssociative (reverse ys) (reverse xs) [x]

36−

37−||| A recursive definition of reverse.

38−reverseRec : List a -> List a

39−reverseRec [] = []

40−reverseRec (x :: xs) = reverseRec xs ++ [x]

41−

42−||| The iterative and recursive defintions of reverse are the same.

43−reverseEquiv : (xs : List a) -> reverseRec xs = reverse xs

44−reverseEquiv [] = Refl

45−reverseEquiv (x :: xs) =

46− rewrite reverseEquiv xs in

47− rewrite reverseAppend [x] xs in

48− Refl

49−

50−||| Reversing a singleton list is a no-op.

51−reverseSingletonId : (x : a) -> reverse [x] = [x]

52−reverseSingletonId _ = Refl

53−

54−||| Reversing a reverse gives the original.

55−reverseReverseId : (xs : List a) -> reverse (reverse xs) = xs

56−reverseReverseId [] = Refl

57−reverseReverseId (x :: xs) =

58− rewrite reverseCons x xs in

59− rewrite reverseAppend (reverse xs) [x] in

60− cong $ reverseReverseId xs

61−

62−||| Reversing onto preserves list length.

63−reverseOntoLength : (xs, acc : List a) ->

64− length $ reverseOnto acc xs = length acc + length xs

65−reverseOntoLength [] acc = rewrite plusZeroRightNeutral (length acc) in Refl

66−reverseOntoLength (x :: xs) acc =

67− rewrite reverseOntoLength xs (x :: acc) in

68− plusSuccRightSucc (length acc) (length xs)

69−

70−||| Reversing preserves list length.

71−reverseLength : (xs : List a) -> length $ reverse xs = length xs

72−reverseLength xs = reverseOntoLength xs []

73−

74−||| Equal reversed lists are equal.

75−reverseEqual : (xs, ys : List a) -> reverse xs = reverse ys -> xs = ys

76−reverseEqual xs ys prf =

77− rewrite sym $ reverseReverseId xs in

78− rewrite prf in

79− reverseReverseId ys

80−

81−||| Do geese see God?

82−data Palindrome : (xs : List a) -> Type where

83− Empty : Palindrome []

84− Single : Palindrome [_]

85− Multi : Palindrome xs -> Palindrome $ [x] ++ xs ++ [x]

86−

87−||| A Palindrome reversed is itself.

88−palindromeReverse : (xs : List a) -> Palindrome xs -> reverse xs = xs

89−palindromeReverse [] Empty = Refl

90−palindromeReverse [_] Single = Refl

91−palindromeReverse ([x] ++ ys ++ [x]) (Multi pf) =

92− rewrite reverseAppend ([x] ++ ys) [x] in

93− rewrite reverseAppend [x] ys in

94− rewrite palindromeReverse ys pf in

95− Refl

96−

97−||| Only Palindromes are equal to their own reverse.

98−postulate -- This is a tough one. Any takers?

99−reversePalindrome : (xs : List a) -> reverse xs = xs -> Palindrome xs

libs/contrib/Data/Nat/Fact.idrdeleted−56

@@ -1,56 +0,0 @@

1−||| Properties of factorial functions.

2−module Data.Nat.Fact

3−

4−%access public export

5−

6−%default total

7−

8−||| Recursive definition of factorial.

9−factRec : Nat -> Nat

10−factRec Z = 1

11−factRec (S k) = (S k) * factRec k

12−

13−||| Tail-recursive accumulator for factItr.

14−factAcc : Nat -> Nat -> Nat

15−factAcc Z acc = acc

16−factAcc (S k) acc = factAcc k $ (S k) * acc

17−

18−||| Iterative definition of factorial.

19−factItr : Nat -> Nat

20−factItr n = factAcc n 1

21−

22−----------------------------------------

23−

24−||| Multiplicand-shuffling lemma.

25−multShuffle : (a, b, c : Nat) -> a * (b * c) = b * (a * c)

26−multShuffle a b c =

27− rewrite multAssociative a b c in

28− rewrite multCommutative a b in

29− sym $ multAssociative b a c

30−

31−||| Multiplication of the accumulator.

32−factAccMult : (a, b, c : Nat) ->

33− a * factAcc b c = factAcc b (a * c)

34−factAccMult _ Z _ = Refl

35−factAccMult a (S k) c =

36− rewrite factAccMult a k (S k * c) in

37− rewrite multShuffle a (S k) c in

38− Refl

39−

40−||| Addition of accumulators.

41−factAccPlus : (a, b, c : Nat) ->

42− factAcc a b + factAcc a c = factAcc a (b + c)

43−factAccPlus Z _ _ = Refl

44−factAccPlus (S k) b c =

45− rewrite factAccPlus k (S k * b) (S k * c) in

46− rewrite sym $ multDistributesOverPlusRight (S k) b c in

47− Refl

48−

49−||| The recursive and iterative definitions are the equivalent.

50−factRecItr : (n : Nat) -> factRec n = factItr n

51−factRecItr Z = Refl

52−factRecItr (S k) =

53− rewrite factRecItr k in

54− rewrite factAccMult k k 1 in

55− rewrite multOneRightNeutral k in

56− factAccPlus k 1 k

libs/contrib/Data/Nat/Parity.idr+29−155

@@ -2,9 +2,18 @@ module Data.Nat.Parity

2

3%access public export

4

5−----------------------------------------

5+--------------------------------------------------------------------------------

6+-- Parity

7+--------------------------------------------------------------------------------

6

8

7−-- Type-level, constructive definitions of parity.

9+mutual

10+ even : Nat -> Bool

11+ even Z = True

12+ even (S k) = odd k

13+

14+ odd : Nat -> Bool

15+ odd Z = False

16+ odd (S k) = even k

8

17

9||| A nat is Even when it is twice some other nat.

18||| A nat is Even when it is twice some other nat.

10Even : Nat -> Type

19Even : Nat -> Type

@@ -14,8 +23,6 @@ Even n = (half : Nat ** n = half * 2)

14Odd : Nat -> Type

23Odd : Nat -> Type

15Odd n = (haf : Nat ** n = S $ haf * 2)

24Odd n = (haf : Nat ** n = S $ haf * 2)

16

25

17−----------------------------------------

18−

19||| Two more than an Even is Even.

26||| Two more than an Even is Even.

20add2Even : Even n -> Even (2 + n)

27add2Even : Even n -> Even (2 + n)

21add2Even (half ** pf) = (S half ** cong {f = (+) 2} pf)

28add2Even (half ** pf) = (S half ** cong {f = (+) 2} pf)

@@ -45,73 +52,20 @@ succDoublePredPred {k = S _} prf = cong {f = Nat.pred} prf

45predEvenOdd : Even (S n) -> Odd n

52predEvenOdd : Even (S n) -> Odd n

46predEvenOdd (half ** pf) = (pred half ** succDoublePredPred pf)

53predEvenOdd (half ** pf) = (pred half ** succDoublePredPred pf)

47

54

48−----------------------------------------

49−

50−-- Boolean definitions of parity.

51−

52−mutual

53− even : Nat -> Bool

54− even Z = True

55− even (S k) = odd k

56−

57− odd : Nat -> Bool

58− odd Z = False

59− odd (S k) = even k

60−

61−----------------------------------------

62−

63−-- The boolean and type-level definitions are equivalent in the sense

64−-- that a proof of one can be gotten from a proof of the other.

65−

66−mutual

67− ||| Evens are even.

68− evenEven : Even n -> even n = True

69− evenEven {n = Z} _ = Refl

70− evenEven {n = S _} pf = oddOdd $ predEvenOdd pf

71−

72− ||| Odds are odd.

73− oddOdd : Odd n -> odd n = True

74− oddOdd {n = Z} (_ ** pf) = absurd pf

75− oddOdd {n = S _} pf = evenEven $ predOddEven pf

76−

77−mutual

78− ||| If it's even, it's Even.

79− evenEvenConverse : even n = True -> Even n

80− evenEvenConverse {n = Z} prf = (0 ** Refl)

81− evenEvenConverse {n = S k} prf =

82− let (haf ** pf) = oddOddConverse prf in

83− (S haf ** cong pf)

84−

85− ||| If it's odd, it's Odd

86− oddOddConverse : odd n = True -> Odd n

87− oddOddConverse {n = Z} prf = absurd prf

88− oddOddConverse {n = S k} prf =

89− let (half ** pf) = evenEvenConverse prf in

90− (half ** cong pf)

91−

92−----------------------------------------

93−

94−||| Every nat is either even or odd.

95−evenorodd : (n : Nat) -> Either (even n = True) (odd n = True)

96−evenorodd Z = Left Refl

97−evenorodd (S k) = case evenorodd k of

98− Left l => Right l

99− Right r => Left r

100−

101||| Every nat is either Even or Odd.

55||| Every nat is either Even or Odd.

102evenOrOdd : (n : Nat) -> Either (Even n) (Odd n)

56evenOrOdd : (n : Nat) -> Either (Even n) (Odd n)

103−evenOrOdd n = case evenorodd n of

57+evenOrOdd Z = Left (0 ** Refl)

104− Left e => Left $ evenEvenConverse e

58+evenOrOdd (S k) = case evenOrOdd k of

105− Right o => Right $ oddOddConverse o

59+ Left (half ** pf) => Right (half ** cong {f = S} pf)

106−

60+ Right (haf ** pf) => Left (S haf ** cong {f = S} pf)

107−||| No nat is both even and odd.

108−notevenandodd : even n = True -> odd n = True -> Void

109−notevenandodd {n = Z} en on = absurd on

110−notevenandodd {n = S _} en on = notevenandodd on en

111

61

112||| No nat is both Even and Odd.

62||| No nat is both Even and Odd.

113notEvenAndOdd : Even n -> Odd n -> Void

63notEvenAndOdd : Even n -> Odd n -> Void

114−notEvenAndOdd en on = notevenandodd (evenEven en) (oddOdd on)

64+notEvenAndOdd {n = Z} _ (_ ** odd) = absurd odd

65+notEvenAndOdd {n = (S k)} (half ** even) (haf ** odd) =

66+ notEvenAndOdd {n = k}

67+ (haf ** cong {f = Nat.pred} odd)

68+ (pred half ** succDoublePredPred even)

115

69

116||| Evenness is decidable.

70||| Evenness is decidable.

117evenDec : (n : Nat) -> Dec $ Even n

71evenDec : (n : Nat) -> Dec $ Even n

@@ -125,93 +79,13 @@ oddDec n = case evenOrOdd n of

125 Left even => No $ notEvenAndOdd even

79 Left even => No $ notEvenAndOdd even

126 Right odd => Yes odd

80 Right odd => Yes odd

127

81

128−----------------------------------------

82+mutual

129−

83+ ||| Evens are even.

130−||| An Odd is the successor of an Even.

84+ evenEven : Even n -> even n = True

131−oddSuccEven : Odd n -> (m : Nat ** (n = S m, Even m))

85+ evenEven {n = Z} _ = Refl

132−oddSuccEven (haf ** pf) = (haf * 2 ** (pf, (haf ** Refl)))

86+ evenEven {n = S _} pf = oddOdd $ predEvenOdd pf

133−

134−||| Even plus Even is Even.

135−evenPlusEven : Even j -> Even k -> Even (j + k)

136−evenPlusEven (half_j ** pf_j) (half_k ** pf_k) =

137− (half_j + half_k **

138− rewrite pf_j in

139− rewrite pf_k in

140− sym $ multDistributesOverPlusLeft half_j half_k 2)

141−

142−||| Odd plus Even is Odd.

143−oddPlusEven : Odd j -> Even k -> Odd (j + k)

144−oddPlusEven oj ek =

145− let

146− (i ** (ipj, ei)) = oddSuccEven oj

147− (half_ik ** eik) = evenPlusEven ei ek

148− in

149− (half_ik **

150− rewrite ipj in

151− cong {f = S} eik)

152−

153−||| Even plus Odd is Odd.

154−evenPlusOdd : Even j -> Odd k -> Odd (j + k)

155−evenPlusOdd {j} {k} ej ok = rewrite plusCommutative j k in oddPlusEven ok ej

156−

157−||| Odd plus Odd is Even.

158−oddPlusOdd : Odd j -> Odd k -> Even (j + k)

159−oddPlusOdd oj ok =

160− let

161− (i ** (ipj, ei)) = oddSuccEven oj

162− (haf_ik ** oik) = evenPlusOdd ei ok

163− in

164− (S haf_ik **

165− rewrite ipj in

166− rewrite oik in

167− Refl)

168

87

169−||| A helper fact.

88+ ||| Odds are odd.

170−multShuffle : (a, b, c : Nat) ->

89+ oddOdd : Odd n -> odd n = True

171− (a * c) * (b * c) = ((a * b) * c) * c

90+ oddOdd {n = Z} (_ ** pf) = absurd pf

172−multShuffle a b c =

91+ oddOdd {n = S _} pf = evenEven $ predOddEven pf

173− rewrite multAssociative (a * c) b c in

174− rewrite multCommutative (a * c) b in

175− rewrite multAssociative b a c in

176− rewrite multCommutative b a in

177− Refl

178−

179−||| Even times Even is Even.

180−evenMultEven : Even j -> Even k -> Even (j * k)

181−evenMultEven (half_j ** pf_j) (half_k ** pf_k) =

182− (half_j * half_k * 2 **

183− rewrite pf_j in

184− rewrite pf_k in

185− multShuffle half_j half_k 2)

186−

187−||| Odd times Even is Even.

188−oddMultEven : Odd j -> Even k -> Even (j * k)

189−oddMultEven oj (half_k ** pf_k) =

190− let

191− (i ** (ipj, ei)) = oddSuccEven oj

192− (half_ik ** oik) = evenMultEven ei (half_k ** pf_k)

193− in

194− (half_k + half_ik **

195− rewrite multDistributesOverPlusLeft half_k half_ik 2 in

196− rewrite ipj in

197− rewrite oik in

198− rewrite pf_k in

199− Refl)

200−

201−||| Even times Odd is Even.

202−evenMultOdd : Even j -> Odd k -> Even (j * k)

203−evenMultOdd {j} {k} ej ok = rewrite multCommutative j k in oddMultEven ok ej

204−

205−||| Odd times Odd is Odd.

206−oddMultOdd : Odd j -> Odd k -> Odd (j * k)

207−oddMultOdd oj (haf_k ** pf_k) =

208− let

209− (i ** (ipj, ei)) = oddSuccEven oj

210− (half_ik ** eik) = evenMultOdd ei (haf_k ** pf_k)

211− in

212− (haf_k + half_ik **

213− rewrite multDistributesOverPlusLeft haf_k half_ik 2 in

214− rewrite ipj in

215− rewrite eik in

216− rewrite pf_k in

217− Refl)

libs/contrib/Language/JSON.idr+1−1

@@ -1,4 +1,4 @@

1−||| The JSON language, as described at https://json.org/

1+||| The JSON language, as described at http://json.org/

2module Language.JSON

3

4import Language.JSON.Lexer

libs/contrib/contrib.ipkg+1−1

@@ -43,7 +43,7 @@ modules = CFFI

43 , Data.Heap

44 , Data.IOArray

45 , Data.List.Zipper

46− , Data.List.Reverse

46+ , Data.List.Extra

47

48 , Data.Matrix

49 , Data.Matrix.Algebraic

libs/prelude/IO.idr+1−1

@@ -80,7 +80,7 @@ foreign_prim f fname (FFun arg sc) env

80||| Idris compiler backend in use. For the default C backend, see the

81||| documentation for `FFI_C`.

82|||

83−||| For more details, please consult [the Idris documentation](https://idris.readthedocs.io/en/latest/reference/ffi.html).

83+||| For more details, please consult [the Idris documentation](http://docs.idris-lang.org/en/latest/reference/ffi.html).

84|||

85||| @ f an FFI descriptor, which is specific to the compiler backend.

86||| @ fname the name of the foreign function

libs/prelude/Prelude/File.idr+2−3

@@ -150,8 +150,7 @@ do_getFileAccessTime h =

150private

151do_getFileModifiedTime : Ptr -> IO Integer

152do_getFileModifiedTime h =

153− do vm <- getMyVM

154− MkRaw i <- foreign FFI_C "fileModifiedTime" (Ptr -> Ptr -> IO (Raw Integer)) vm h

153+ do MkRaw i <- foreign FFI_C "fileModifiedTime" (Ptr -> IO (Raw Integer)) h

155 pure i

154 pure i

156

155

157private

156private

@@ -176,7 +175,7 @@ export

176fileModifiedTime : File -> IO (Either FileError Integer)

175fileModifiedTime : File -> IO (Either FileError Integer)

177fileModifiedTime (FHandle h)

176fileModifiedTime (FHandle h)

178 = do s <- do_getFileModifiedTime h

177 = do s <- do_getFileModifiedTime h

179− if (s == -1)

178+ if (s < 0)

180 then Left <$> getFileError

179 then Left <$> getFileError

181 else pure (Right s)

180 else pure (Right s)

182

181

libs/prelude/Prelude/Nat.idr+61−32

@@ -512,18 +512,19 @@ plusLeftCancel (S left) right right' p =

512

513total plusRightCancel : (left : Nat) -> (left' : Nat) -> (right : Nat) ->

514 (p : left + right = left' + right) -> left = left'

515−plusRightCancel left left' right p =

515+plusRightCancel left left' Z p = rewrite sym (plusZeroRightNeutral left) in

516− plusLeftCancel right left left' $

516+ rewrite sym (plusZeroRightNeutral left') in

517− rewrite plusCommutative right left in

517+ p

518− rewrite plusCommutative right left' in

518+plusRightCancel left left' (S right) p =

519− p

519+ plusRightCancel left left' right

520+ (succInjective _ _ (rewrite plusSuccRightSucc left right in

521+ rewrite plusSuccRightSucc left' right in p))

520

522

521total plusLeftLeftRightZero : (left : Nat) -> (right : Nat) ->

523total plusLeftLeftRightZero : (left : Nat) -> (right : Nat) ->

522 (p : left + right = left) -> right = Z

524 (p : left + right = left) -> right = Z

523−plusLeftLeftRightZero left right p =

525+plusLeftLeftRightZero Z right p = p

524− plusLeftCancel left right Z $

526+plusLeftLeftRightZero (S left) right p =

525− rewrite plusZeroRightNeutral left in

527+ plusLeftLeftRightZero left right (succInjective _ _ p)

526− p

527

528

528-- Mult

529-- Mult

529total multZeroLeftZero : (right : Nat) -> Z * right = Z

530total multZeroLeftZero : (right : Nat) -> Z * right = Z

@@ -557,21 +558,27 @@ multCommutative (S left) right =

557 rewrite multRightSuccPlus right left in

558 rewrite multRightSuccPlus right left in

558 Refl

559 Refl

559

560

560−total multDistributesOverPlusLeft : (left : Nat) -> (centre : Nat) -> (right : Nat) ->

561− (left + centre) * right = (left * right) + (centre * right)

562−multDistributesOverPlusLeft Z centre right = Refl

563−multDistributesOverPlusLeft (S k) centre right =

564− rewrite multDistributesOverPlusLeft k centre right in

565− rewrite plusAssociative right (k * right) (centre * right) in

566− Refl

567−

568total multDistributesOverPlusRight : (left : Nat) -> (centre : Nat) -> (right : Nat) ->

561total multDistributesOverPlusRight : (left : Nat) -> (centre : Nat) -> (right : Nat) ->

569 left * (centre + right) = (left * centre) + (left * right)

562 left * (centre + right) = (left * centre) + (left * right)

570−multDistributesOverPlusRight left centre right =

563+multDistributesOverPlusRight Z centre right = Refl

571− rewrite multCommutative left (centre + right) in

564+multDistributesOverPlusRight (S left) centre right =

572− rewrite multCommutative left centre in

565+ let inductiveHypothesis = multDistributesOverPlusRight left centre right in

573− rewrite multCommutative left right in

566+ rewrite inductiveHypothesis in

567+ rewrite plusAssociative (plus centre (mult left centre)) right (mult left right) in

568+ rewrite sym (plusAssociative centre (mult left centre) right) in

569+ rewrite plusCommutative (mult left centre) right in

570+ rewrite plusAssociative centre right (mult left centre) in

571+ rewrite plusAssociative (plus centre right) (mult left centre) (mult left right) in

572+ Refl

573+

574+total multDistributesOverPlusLeft : (left : Nat) -> (centre : Nat) -> (right : Nat) ->

575+ (left + centre) * right = (left * right) + (centre * right)

574− multDistributesOverPlusLeft centre right left

576+multDistributesOverPlusLeft Z centre right = Refl

577+multDistributesOverPlusLeft (S left) centre right =

578+ let inductiveHypothesis = multDistributesOverPlusLeft left centre right in

579+ rewrite inductiveHypothesis in

580+ rewrite plusAssociative right (mult left right) (mult centre right) in

581+ Refl

575

582

576total multAssociative : (left : Nat) -> (centre : Nat) -> (right : Nat) ->

583total multAssociative : (left : Nat) -> (centre : Nat) -> (right : Nat) ->

577 left * (centre * right) = (left * centre) * right

584 left * (centre * right) = (left * centre) * right

@@ -583,10 +590,18 @@ multAssociative (S left) centre right =

583 Refl

590 Refl

584

591

585total multOneLeftNeutral : (right : Nat) -> 1 * right = right

592total multOneLeftNeutral : (right : Nat) -> 1 * right = right

586−multOneLeftNeutral right = plusZeroRightNeutral right

593+multOneLeftNeutral Z = Refl

594+multOneLeftNeutral (S right) =

595+ let inductiveHypothesis = multOneLeftNeutral right in

596+ rewrite inductiveHypothesis in

597+ Refl

587

598

588total multOneRightNeutral : (left : Nat) -> left * 1 = left

599total multOneRightNeutral : (left : Nat) -> left * 1 = left

589−multOneRightNeutral left = rewrite multCommutative left 1 in multOneLeftNeutral left

600+multOneRightNeutral Z = Refl

601+multOneRightNeutral (S left) =

602+ let inductiveHypothesis = multOneRightNeutral left in

603+ rewrite inductiveHypothesis in

604+ Refl

590

605

591-- Minus

606-- Minus

592total minusSuccSucc : (left : Nat) -> (right : Nat) ->

607total minusSuccSucc : (left : Nat) -> (right : Nat) ->

@@ -674,7 +689,10 @@ total powerZeroOne : (base : Nat) -> power base 0 = S Z

674powerZeroOne base = Refl

689powerZeroOne base = Refl

675

690

676total powerOneNeutral : (base : Nat) -> power base 1 = base

691total powerOneNeutral : (base : Nat) -> power base 1 = base

677−powerOneNeutral base = rewrite multCommutative base 1 in multOneLeftNeutral base

692+powerOneNeutral Z = Refl

693+powerOneNeutral (S base) =

694+ let inductiveHypothesis = powerOneNeutral base in

695+ rewrite inductiveHypothesis in Refl

678

696

679total powerOneSuccOne : (exp : Nat) -> power 1 exp = S Z

697total powerOneSuccOne : (exp : Nat) -> power 1 exp = S Z

680powerOneSuccOne Z = Refl

698powerOneSuccOne Z = Refl

@@ -683,7 +701,8 @@ powerOneSuccOne (S exp) =

683 rewrite inductiveHypothesis in Refl

701 rewrite inductiveHypothesis in Refl

684

702

685total powerSuccSuccMult : (base : Nat) -> power base 2 = mult base base

703total powerSuccSuccMult : (base : Nat) -> power base 2 = mult base base

704+powerSuccSuccMult Z = Refl

686−powerSuccSuccMult base = rewrite multOneRightNeutral base in Refl

705+powerSuccSuccMult (S base) = rewrite multOneRightNeutral base in Refl

687

706

688total powerPowerMultPower : (base : Nat) -> (exp : Nat) -> (exp' : Nat) ->

707total powerPowerMultPower : (base : Nat) -> (exp : Nat) -> (exp' : Nat) ->

689 power (power base exp) exp' = power base (exp * exp')

708 power (power base exp) exp' = power base (exp * exp')

@@ -777,24 +796,34 @@ minimumIdempotent Z = Refl

777minimumIdempotent (S k) = cong (minimumIdempotent k)

796minimumIdempotent (S k) = cong (minimumIdempotent k)

778

797

779total minimumZeroZeroRight : (right : Nat) -> minimum 0 right = Z

798total minimumZeroZeroRight : (right : Nat) -> minimum 0 right = Z

780−minimumZeroZeroRight right = Refl

799+minimumZeroZeroRight Z = Refl

800+minimumZeroZeroRight (S right) = minimumZeroZeroRight right

781

801

782total minimumZeroZeroLeft : (left : Nat) -> minimum left 0 = Z

802total minimumZeroZeroLeft : (left : Nat) -> minimum left 0 = Z

783−minimumZeroZeroLeft left = rewrite minimumCommutative left 0 in Refl

803+minimumZeroZeroLeft Z = Refl

804+minimumZeroZeroLeft (S left) = Refl

784

805

785total minimumSuccSucc : (left : Nat) -> (right : Nat) ->

806total minimumSuccSucc : (left : Nat) -> (right : Nat) ->

786 minimum (S left) (S right) = S (minimum left right)

807 minimum (S left) (S right) = S (minimum left right)

787−minimumSuccSucc left right = Refl

808+minimumSuccSucc Z Z = Refl

809+minimumSuccSucc (S left) Z = Refl

810+minimumSuccSucc Z (S right) = Refl

811+minimumSuccSucc (S left) (S right) = Refl

788

812

789total maximumZeroNRight : (right : Nat) -> maximum Z right = right

813total maximumZeroNRight : (right : Nat) -> maximum Z right = right

790−maximumZeroNRight right = Refl

814+maximumZeroNRight Z = Refl

815+maximumZeroNRight (S right) = Refl

791

816

792total maximumZeroNLeft : (left : Nat) -> maximum left Z = left

817total maximumZeroNLeft : (left : Nat) -> maximum left Z = left

793−maximumZeroNLeft left = rewrite maximumCommutative left Z in Refl

818+maximumZeroNLeft Z = Refl

819+maximumZeroNLeft (S left) = Refl

794

820

795total maximumSuccSucc : (left : Nat) -> (right : Nat) ->

821total maximumSuccSucc : (left : Nat) -> (right : Nat) ->

796 S (maximum left right) = maximum (S left) (S right)

822 S (maximum left right) = maximum (S left) (S right)

797−maximumSuccSucc left right = Refl

823+maximumSuccSucc Z Z = Refl

824+maximumSuccSucc (S left) Z = Refl

825+maximumSuccSucc Z (S right) = Refl

826+maximumSuccSucc (S left) (S right) = Refl

798

827

799total sucMaxL : (l : Nat) -> maximum (S l) l = (S l)

828total sucMaxL : (l : Nat) -> maximum (S l) l = (S l)

800sucMaxL Z = Refl

829sucMaxL Z = Refl

man/idris.1+1−1

@@ -113,7 +113,7 @@ should not necessarily be seen as production ready nor for industrial use.

113

114.SH SEE ALSO

115

116−+ The IDRIS web site (https://idris-lang.org/

116++ The IDRIS web site (http://idris-lang.org/

117

118+ The IRC channel #idris, on chat.freenode.net

119

rts/idris_bitstring.c+2

@@ -1,3 +1,5 @@

1+#include <assert.h>

2+

1#include "idris_rts.h"

3#include "idris_rts.h"

2

4

3VAL idris_b8const(VM *vm, uint8_t a) {

5VAL idris_b8const(VM *vm, uint8_t a) {

rts/idris_rts.c+10

@@ -1158,6 +1158,16 @@ void idris_disableBuffering(void) {

1158 setvbuf(stdout, NULL, _IONBF, 0);

1159}

1160

1161+#ifndef SEL4

1162+int idris_usleep(int usec) {

1163+ struct timespec t;

1164+ t.tv_sec = usec / 1000000;

1165+ t.tv_nsec = (usec % 1000000) * 1000;

1166+

1167+ return nanosleep(&t, NULL);

1168+}

1169+#endif // SEL4

1170+

1161void stackOverflow(void) {

1171void stackOverflow(void) {

1162 fprintf(stderr, "Stack overflow");

1172 fprintf(stderr, "Stack overflow");

1163 exit(-1);

1173 exit(-1);

rts/idris_rts.h+4

@@ -507,6 +507,10 @@ const char *idris_getArg(int i);

507// disable stdin/stdout buffering

508void idris_disableBuffering(void);

509

510+#ifndef SEL4

511+int idris_usleep(int usec);

512+#endif // SEL4

513+

510// Handle stack overflow.

514// Handle stack overflow.

511// Just reports an error and exits.

515// Just reports an error and exits.

512

516

rts/idris_stdfgn.c+2−12

@@ -74,13 +74,13 @@ VAL fileAccessTime(void* h) {

74 }

75}

76

77−VAL fileModifiedTime(VM* vm, void* h) {

77+VAL fileModifiedTime(void* h) {

78 FILE* f = (FILE*)h;

79 int fd = fileno(f);

80

81 struct stat buf;

82 if (fstat(fd, &buf) == 0) {

83− return MKBIGUI(vm, buf.st_mtime);

83+ return MKBIGI(buf.st_mtime);

84 } else {

85 return MKBIGI(-1);

86 }

@@ -228,16 +228,6 @@ VAL idris_clock(VM* vm) {

228 return result;

229}

230

231−#ifndef SEL4

232−int idris_usleep(int usec) {

233− struct timespec t;

234− t.tv_sec = usec / 1000000;

235− t.tv_nsec = (usec % 1000000) * 1000;

236−

237− return nanosleep(&t, NULL);

238−}

239−#endif // SEL4

240−

241VAL idris_mkFileError(VM* vm) {

231VAL idris_mkFileError(VM* vm) {

242 VAL result;

232 VAL result;

243 switch(errno) {

233 switch(errno) {

rts/idris_stdfgn.h+1−4

@@ -18,7 +18,7 @@ int fileSize(void* h);

18

19// Return a negative number if not a file (e.g. directory or device)

20VAL fileAccessTime(void* h);

21−VAL fileModifiedTime(VM* vm, void* h);

21+VAL fileModifiedTime(void* h);

22VAL fileStatusTime(void* h);

23

24void* idris_dirOpen(char* dname);

@@ -54,9 +54,6 @@ char* getEnvPair(int i);

54

55VAL idris_time();

56VAL idris_clock(VM* vm);

57−#ifndef SEL4

58−int idris_usleep(int usec);

59−#endif // SEL4

60

57

61void idris_forceGC();

58void idris_forceGC();

62

59

rts/idris_utf8.c+1

@@ -1,4 +1,5 @@

1#include "idris_utf8.h"

2+#include <stdio.h>

2#include <string.h>

3#include <string.h>

3#include <stdlib.h>

4#include <stdlib.h>

4

5

src/IRTS/Portable.hs−1

@@ -265,7 +265,6 @@ instance ToJSON BC where

265 toJSON (FOREIGNCALL r fd ret exps) = object ["FOREIGNCALL" .= (r, fd, ret, exps)]

266 toJSON (SLIDE i) = object ["SLIDE" .= i]

267 toJSON (RESERVE i) = object ["RESERVE" .= i]

268− toJSON (RESERVENOALLOC i) = object ["RESERVENOALLOC" .= i]

269 toJSON (ADDTOP i) = object ["ADDTOP" .= i]

268 toJSON (ADDTOP i) = object ["ADDTOP" .= i]

270 toJSON (TOPBASE i) = object ["TOPBASE" .= i]

269 toJSON (TOPBASE i) = object ["TOPBASE" .= i]

271 toJSON (BASETOP i) = object ["BASETOP" .= i]

270 toJSON (BASETOP i) = object ["BASETOP" .= i]

src/Idris/CmdOptions.hs+3−4

@@ -18,7 +18,6 @@ import Idris.Info (getIdrisVersion)

18import Idris.Options

19import IRTS.CodegenCommon

20

21−import qualified Control.Monad.Fail as Fail

22import Control.Monad.Trans (lift)

21import Control.Monad.Trans (lift)

23import Control.Monad.Trans.Except (throwE)

22import Control.Monad.Trans.Except (throwE)

24import Control.Monad.Trans.Reader (ask)

23import Control.Monad.Trans.Reader (ask)

@@ -72,7 +71,7 @@ runArgParser = do opts <- execParser $ info parser

72 PP.empty,

71 PP.empty,

73 PP.text "More details over Idris can be found online here:",

72 PP.text "More details over Idris can be found online here:",

74 PP.empty,

73 PP.empty,

75− PP.indent 4 (PP.text "https://www.idris-lang.org/")]

74+ PP.indent 4 (PP.text "http://www.idris-lang.org/")]

76

75

77execArgParserPure :: [String] -> ParserResult [Opt]

76execArgParserPure :: [String] -> ParserResult [Opt]

78execArgParserPure args = preProcOpts <$> execParserPure (prefs idm) (info parser idm) args

77execArgParserPure args = preProcOpts <$> execParserPure (prefs idm) (info parser idm) args

@@ -265,7 +264,7 @@ parseCodegen :: String -> Codegen

265parseCodegen "bytecode" = Bytecode

264parseCodegen "bytecode" = Bytecode

266parseCodegen cg = Via IBCFormat (map toLower cg)

265parseCodegen cg = Via IBCFormat (map toLower cg)

267

266

268−parseLogCats :: Fail.MonadFail m => String -> m [LogCat]

267+parseLogCats :: Monad m => String -> m [LogCat]

269parseLogCats s =

268parseLogCats s =

270 case lastMay (readP_to_S doParse s) of

269 case lastMay (readP_to_S doParse s) of

271 Just (xs, _) -> return xs

270 Just (xs, _) -> return xs

@@ -291,7 +290,7 @@ parseLogCats s =

291 s <- look

290 s <- look

292 fail $ "Category: " ++ s ++ " is not recognised."

291 fail $ "Category: " ++ s ++ " is not recognised."

293

292

294−parseConsoleWidth :: Fail.MonadFail m => String -> m ConsoleWidth

293+parseConsoleWidth :: Monad m => String -> m ConsoleWidth

295parseConsoleWidth "auto" = return AutomaticWidth

294parseConsoleWidth "auto" = return AutomaticWidth

296parseConsoleWidth "infinite" = return InfinitelyWide

295parseConsoleWidth "infinite" = return InfinitelyWide

297parseConsoleWidth s =

296parseConsoleWidth s =

src/Idris/Core/CaseTree.hs+1−1

@@ -627,7 +627,7 @@ groupCons cs = gc [] cs

627 PConst cval -> return $ addConG cval (ps, res) acc

628 PSuc n -> return $ addg False CSuc [n] (ps, res) acc

629 PReflected fn args -> return $ addg False (CFn fn) args (ps, res) acc

630− pat -> error $ show pat ++ " is not a constructor or constant (can't happen)"

630+ pat -> fail $ show pat ++ " is not a constructor or constant (can't happen)"

631

632 addg uniq c conargs res []

633 = [ConGroup uniq c [(conargs, res)]]

src/Idris/Core/TT.hs−6

@@ -70,7 +70,6 @@ import qualified Prelude as S (Semigroup(..))

70import Control.Applicative (Alternative, Applicative(..))

71import qualified Control.Applicative as A (Alternative(..))

72import Control.DeepSeq (($!!))

73−import qualified Control.Monad.Fail as Fail

74import Control.Monad.State.Strict

73import Control.Monad.State.Strict

75import Data.Binary hiding (get, put)

74import Data.Binary hiding (get, put)

76import Data.Char

75import Data.Char

@@ -325,11 +324,6 @@ bindTC x k = case x of

325instance Monad TC where

324instance Monad TC where

326 return x = OK x

325 return x = OK x

327 x >>= k = bindTC x k

326 x >>= k = bindTC x k

328−#if !(MIN_VERSION_base(4,13,0))

329− fail = Fail.fail

330−#endif

331−

332−instance Fail.MonadFail TC where

333 fail e = Error (InternalMsg e)

327 fail e = Error (InternalMsg e)

334

328

335instance MonadPlus TC where

329instance MonadPlus TC where

src/Idris/ModeCommon.hs+1−1

@@ -167,7 +167,7 @@ loadInputs inputs toline -- furthest line to read in input source files

167banner = " ____ __ _ \n" ++

168 " / _/___/ /____(_)____ \n" ++

169 " / // __ / ___/ / ___/ Version " ++ getIdrisVersion ++ "\n" ++

170− " _/ // /_/ / / / (__ ) https://www.idris-lang.org/ \n" ++

170+ " _/ // /_/ / / / (__ ) http://www.idris-lang.org/ \n" ++

171 " /___/\\__,_/_/ /_/____/ Type :? for help \n" ++

172 "\n" ++

173 "Idris is free software with ABSOLUTELY NO WARRANTY. \n" ++

src/Idris/Parser/Stack.hs+2−16

@@ -5,7 +5,7 @@ Description : Idris parser stack and its primitives.

5License : BSD3

6Maintainer : The Idris Community.

7-}

8−{-# LANGUAGE CPP, ConstraintKinds, FlexibleContexts, MultiParamTypeClasses #-}

8+{-# LANGUAGE ConstraintKinds, FlexibleContexts, MultiParamTypeClasses #-}

9module Idris.Parser.Stack

10 ( -- * Parsing

11 Parser(..)

@@ -36,7 +36,6 @@ import Idris.Core.TT (FC(..))

36import Idris.Output (Message(..))

37

38import Control.Arrow (app)

39−import qualified Control.Monad.Fail as Fail

40import Control.Monad.State.Strict (StateT(..), evalStateT)

39import Control.Monad.State.Strict (StateT(..), evalStateT)

41import Control.Monad.Writer.Strict (MonadWriter(..), WriterT(..), listen,

40import Control.Monad.Writer.Strict (MonadWriter(..), WriterT(..), listen,

42 runWriterT, tell)

41 runWriterT, tell)

@@ -52,7 +51,7 @@ import qualified Util.Pretty as PP

52type Parser s = StateT s (WriterT FC (P.Parsec Void String))

51type Parser s = StateT s (WriterT FC (P.Parsec Void String))

53

52

54-- | A constraint for parsing without state

53-- | A constraint for parsing without state

55−type Parsing m = (Fail.MonadFail m, P.MonadParsec Void String m, MonadWriter FC m)

54+type Parsing m = (P.MonadParsec Void String m, MonadWriter FC m)

56

55

57-- | Run the Idris parser stack

56-- | Run the Idris parser stack

58runparser :: Parser st res -> st -> String -> String -> Either ParseError res

57runparser :: Parser st res -> st -> String -> String -> Either ParseError res

@@ -77,20 +76,11 @@ parseErrorOffset = P.errorOffset . parseError

77instance Message ParseError where

76instance Message ParseError where

78 messageExtent err = sourcePositionFC pos

77 messageExtent err = sourcePositionFC pos

79 where

78 where

80−#if MIN_VERSION_megaparsec(8,0,0)

81− P.PosState {P.pstateSourcePos = pos} =

82− P.reachOffsetNoLine (parseErrorOffset err) (parseErrorPosState err)

83−#else

84 (pos, _) = P.reachOffsetNoLine (parseErrorOffset err) (parseErrorPosState err)

79 (pos, _) = P.reachOffsetNoLine (parseErrorOffset err) (parseErrorPosState err)

85−#endif

86 messageText = PP.text . init . P.parseErrorTextPretty . parseError

80 messageText = PP.text . init . P.parseErrorTextPretty . parseError

87 messageSource err = Just sline

81 messageSource err = Just sline

88 where

82 where

89−#if MIN_VERSION_megaparsec(8,0,0)

90− (sline, _) = P.reachOffset (parseErrorOffset err) (parseErrorPosState err)

91−#else

92 (_, sline, _) = P.reachOffset (parseErrorOffset err) (parseErrorPosState err)

83 (_, sline, _) = P.reachOffset (parseErrorOffset err) (parseErrorPosState err)

93−#endif

94

84

95-- | A fully formatted parse error, with caret and bar, etc.

85-- | A fully formatted parse error, with caret and bar, etc.

96prettyError :: ParseError -> String

86prettyError :: ParseError -> String

@@ -98,11 +88,7 @@ prettyError = P.errorBundlePretty . unParseError

98

88

99{- * Mark and restore -}

89{- * Mark and restore -}

100

90

101−#if MIN_VERSION_megaparsec(8,0,0)

102−type Mark = P.State String Void

103−#else

104type Mark = P.State String

91type Mark = P.State String

105−#endif

106

92

107-- | Retrieve the parser state so we can restart from this point later.

93-- | Retrieve the parser state so we can restart from this point later.

108mark :: Parsing m => m Mark

94mark :: Parsing m => m Mark

src/Idris/Reflection.hs+1−1

@@ -1105,7 +1105,7 @@ unApplyRaw tm = ua [] tm

1105 ua args t = (t, args)

1106

1107-- | Build the reflected function definition(s) that correspond(s) to

1108−-- a provided unqualified name

1108+-- a provided unqualifed name

1109buildFunDefns :: IState -> Name -> [RFunDefn Term]

1110buildFunDefns ist n =

1111 [ mkFunDefn name clauses

stack-11.22.yamldeleted−21

@@ -1,21 +0,0 @@

1−#recheck extra-deps next on resolver or cabal file change

2−resolver: lts-11.22

3−

4−extra-deps:

5−- cheapskate-0.1.1.2

6−- megaparsec-7.0.5

7−- Cabal-2.4.1.0

8−- network-3.1.1.1

9−- parser-combinators-1.0.0

10−

11−flags:

12− idris:

13− FFI: true

14− GMP: true

15−

16−ghc-options:

17− idris: -fwarn-unused-imports -fwarn-unused-binds

18−

19−nix:

20− enable: false

21− shell-file: stack-shell.nix

stack-12.26.yamldeleted−20

@@ -1,20 +0,0 @@

1−#recheck extra-deps next on resolver or cabal file change

2−resolver: lts-12.26

3−

4−extra-deps:

5−- cheapskate-0.1.1.2

6−- megaparsec-7.0.5

7−- Cabal-2.4.1.0

8−- network-3.1.1.1

9−

10−flags:

11− idris:

12− FFI: true

13− GMP: true

14−

15−ghc-options:

16− idris: -fwarn-unused-imports -fwarn-unused-binds

17−

18−nix:

19− enable: false

20− shell-file: stack-shell.nix

stack-15.3.yamldeleted−17

@@ -1,17 +0,0 @@

1−#recheck extra-deps next on resolver or cabal file change

2−resolver: lts-15.3

3−

4−extra-deps:

5−- cheapskate-0.1.1.2

6−

7−flags:

8− idris:

9− FFI: true

10− GMP: true

11−

12−ghc-options:

13− idris: -fwarn-unused-imports -fwarn-unused-binds

14−

15−nix:

16− enable: false

17− shell-file: stack-shell.nix

stack-15.4.yamldeleted−17

@@ -1,17 +0,0 @@

1−#recheck extra-deps next on resolver or cabal file change

2−resolver: lts-15.4

3−

4−extra-deps:

5−- cheapskate-0.1.1.2

6−

7−flags:

8− idris:

9− FFI: true

10− GMP: true

11−

12−ghc-options:

13− idris: -fwarn-unused-imports -fwarn-unused-binds

14−

15−nix:

16− enable: false

17− shell-file: stack-shell.nix

stack-alt.yamlnew file+25

@@ -0,0 +1,25 @@

1+#recheck extra-deps next on resolver or cabal file change

2+resolver: lts-11.4

3+

4+packages:

5+ - location: .

6+

7+extra-deps:

8+ - network-2.8.0.0@sha256:aae171e6c6028a7791dbe4de5b9d2da398056359e3cc7927465ffa3cdae1aa0b

9+ - Cabal-2.2.0.1@sha256:2a80d8fb655474f0eaeb20434c47f64f84e6302e55973056f00df8ca050b9683

10+ - megaparsec-7.0.4

11+ - parser-combinators-1.0.0

12+ - zip-archive-0.3.3@sha256:47cf2d66cc8e237f7226837758e1b041e24048ef3820d3d10276c500edb921bf

13+ - containers-0.5.11.0@sha256:28ad7337057442f75bc689315ab4ec7bdf5e6b2c39668f306672cecd82c02798

14+

15+flags:

16+ idris:

17+ FFI: true

18+ GMP: true

19+

20+ghc-options:

21+ idris: -fwarn-unused-imports -fwarn-unused-binds

22+

23+nix:

24+ enable: false

25+ shell-file: stack-shell.nix

stack.yamlmode 120000 → 100644+24−1

@@ -1 +0,0 @@

1−stack-15.4.yaml

@@ -0,0 +1,24 @@

1+#recheck extra-deps next on resolver or cabal file change

2+resolver: lts-13.21

3+

4+extra-deps:

5+ - network-2.8.0.0@sha256:aae171e6c6028a7791dbe4de5b9d2da398056359e3cc7927465ffa3cdae1aa0b

6+ - Cabal-2.2.0.1@sha256:2a80d8fb655474f0eaeb20434c47f64f84e6302e55973056f00df8ca050b9683

7+ - megaparsec-7.0.4

8+ - parser-combinators-1.0.0

9+ - zip-archive-0.3.3@sha256:47cf2d66cc8e237f7226837758e1b041e24048ef3820d3d10276c500edb921bf

10+ - containers-0.5.11.0@sha256:28ad7337057442f75bc689315ab4ec7bdf5e6b2c39668f306672cecd82c02798

11+ - tasty-rerun-1.1.14@sha256:ba9c19a281535bea566e1044bc02c36ef17abcb310af4b6a149ec11780c7ce35

12+ - binary-0.8.7.0@sha256:ae3e6cca723ac55c54bbb3fa771bcf18142bc727afd57818e66d6ee6c8044f12

13+

14+flags:

15+ idris:

16+ FFI: true

17+ GMP: true

18+

19+ghc-options:

20+ idris: -fwarn-unused-imports -fwarn-unused-binds

21+

22+nix:

23+ enable: false

24+ shell-file: stack-shell.nix

test/README.md+5−5

@@ -113,18 +113,18 @@ and somewhat self-explanatory.

113

1141. Choose the family your test shall belong to and remember its identifier.

1152. Pick the next available integer in the test family. It will be the index.

116−3. Say the family's identifier is `foo` and the index is `42`. You should call `./mktest.pl foo042` ; this will create the directory and a simple `run.sh` script.

116+3. Say the family's identifier is `foo` and the index is `42`. You should call `./mktest.pl foo042` ; this will create the directory and a simple `run` script.

1174. Modify the `run` script to your liking. If you want to call the idris executable, write `${IDRIS:-idris} $@`.

1185. Add any file you may need in the directory. If they don't end in `.idr`, you should remember them for the next step.

1196. Add your test in `TestData.hs`. Each family has a list of `(Index, CompatCodegen)`. See the next section for the available values in `CompatCodegen`. In most cases, you should write `( 42, ANY)`.

120−7. Generate the `expected.out` file by doing:

120+7. Generate the `expected` file by doing:

121 ```

122 # Using cabal

123 cabal test --test-options="--pattern foo042 --accept"

124 # Using stack

125 stack test --test-arguments="--pattern foo042 --accept"

126 ```

127−8. Check the content of `expected.out`. Maybe the test didn't do what you thought it would. Fix and go back to 7 until it's ok.

127+8. Check the content of `expected`. Maybe the test didn't do what you thought it would. Fix and go back to 7 until it's ok.

128

129### Specifying compatible backends

130

@@ -146,7 +146,7 @@ Currently, `NONE` has the same effect as `ANY`, but this will change.

146

147### Updating golden files

148

149−To update the `expected.out` file for every test, do one of the following:

149+To update the `expected` file for every test, do one of the following:

150

151```

152# Using make

@@ -157,4 +157,4 @@ cabal test --test-options="--accept"

157stack test --test-arguments="--accept"

158```

159

160−"Accepted" tests are the ones that update the golden file. A test can still fail if the `run.sh` script itself crashes.

160+"Accepted" tests are the ones that update the golden file. A test can still fail if the `run` script itself crashes.

test/TestRun.hs+2−2

@@ -62,7 +62,7 @@ ingredients = defaultIngredients ++

62test :: String -> String -> IO () -> TestTree

63test testName path = goldenVsFileDiff testName diff ref output

64 where

65− ref = path </> "expected.out"

65+ ref = path </> "expected"

66 output = path </> "output"

67 diff ref new | os == "openbsd" = ["diff", "-u", new, ref]

68 | otherwise = ["diff", "--strip-trailing-cr", "-u", new, ref]

@@ -92,7 +92,7 @@ mkGoldenTests testFamilies flags =

92-- this thing.

93runTest :: String -> Flags -> IO ()

94runTest path flags = do

95− let run = (proc "bash" ("run.sh" : flags)) {cwd = Just path}

95+ let run = (proc "bash" ("run" : flags)) {cwd = Just path}

96 (_, output, error_out) <- readCreateProcessWithExitCode run ""

97 writeFile (path </> "output") (normalise output)

98 when (error_out /= "") $ hPutStrLn stderr ("\nError: " ++ path ++ "\n" ++ error_out)

test/base001/expected.out → test/base001/expectedrenamed

The content is the same.

test/base001/run.sh → test/base001/runrenamed+1−1

@@ -3,7 +3,7 @@

3set -u

4

5if [[ ${OSTYPE} = 'msys' ]]; then

6− cat expected.out # skip this test on Windows

6+ cat expected # skip this test on Windows

7else

8 ${IDRIS:-idris} "$@" --build base001.ipkg | grep -v 'make.*:'

9 ./base001 2>&1 | grep -v '^sh:.*\./does-not-exist:'

test/basic001/expected.out → test/basic001/expectedrenamed

The content is the same.

test/basic001/run.sh → test/basic001/runrenamed

Only the mode changed.

test/basic002/expected.out → test/basic002/expectedrenamed

The content is the same.

test/basic002/run.sh → test/basic002/runrenamed

Only the mode changed.

test/basic003/expected.out → test/basic003/expectedrenamed

The content is the same.

test/basic003/run.sh → test/basic003/runrenamed

Only the mode changed.

test/basic004/expected.out → test/basic004/expectedrenamed

The content is the same.

test/basic004/run.sh → test/basic004/runrenamed

Only the mode changed.

test/basic005/expected.out → test/basic005/expectedrenamed

The content is the same.

test/basic005/run.sh → test/basic005/runrenamed

Only the mode changed.

test/basic006/expected.out → test/basic006/expectedrenamed

The content is the same.

test/basic006/run.sh → test/basic006/runrenamed

Only the mode changed.

test/basic007/expected.out → test/basic007/expectedrenamed

The content is the same.

test/basic007/run.sh → test/basic007/runrenamed

Only the mode changed.

test/basic008/expected.out → test/basic008/expectedrenamed

The content is the same.

test/basic008/run.sh → test/basic008/runrenamed

Only the mode changed.

test/basic009/expected.out → test/basic009/expectedrenamed

The content is the same.

test/basic009/run.sh → test/basic009/runrenamed

Only the mode changed.

test/basic010/expected.out → test/basic010/expectedrenamed

The content is the same.

test/basic010/run.sh → test/basic010/runrenamed

Only the mode changed.

test/basic011/expected.out → test/basic011/expectedrenamed

The content is the same.

test/basic011/run.sh → test/basic011/runrenamed

Only the mode changed.

test/basic012/expected.out → test/basic012/expectedrenamed

The content is the same.

test/basic012/run.sh → test/basic012/runrenamed

Only the mode changed.

test/basic013/expected.out → test/basic013/expectedrenamed

The content is the same.

test/basic013/run.sh → test/basic013/runrenamed

Only the mode changed.

test/basic014/expected.out → test/basic014/expectedrenamed

The content is the same.

test/basic014/run.sh → test/basic014/runrenamed

Only the mode changed.

test/basic015/expected.out → test/basic015/expectedrenamed

The content is the same.

test/basic015/run.sh → test/basic015/runrenamed

Only the mode changed.

test/basic016/expected.out → test/basic016/expectedrenamed

The content is the same.

test/basic016/run.sh → test/basic016/runrenamed

Only the mode changed.

test/basic017/expected.out → test/basic017/expectedrenamed

The content is the same.

test/basic017/run.sh → test/basic017/runrenamed

Only the mode changed.

test/basic018/expected.out → test/basic018/expectedrenamed

The content is the same.

test/basic018/run.sh → test/basic018/runrenamed

Only the mode changed.

test/basic019/expected.out → test/basic019/expectedrenamed

The content is the same.

test/basic019/run.sh → test/basic019/runrenamed

Only the mode changed.

test/basic020/expected.out → test/basic020/expectedrenamed

The content is the same.

test/basic020/run.sh → test/basic020/runrenamed

Only the mode changed.

test/basic021/expected.out → test/basic021/expectedrenamed

The content is the same.

test/basic021/run.sh → test/basic021/runrenamed

Only the mode changed.

test/basic022/expected.out → test/basic022/expectedrenamed

The content is the same.

test/basic022/run.sh → test/basic022/runrenamed

Only the mode changed.

test/basic023/expected.out → test/basic023/expectedrenamed

The content is the same.

test/basic023/run.sh → test/basic023/runrenamed

Only the mode changed.

test/basic024/expected.out → test/basic024/expectedrenamed

The content is the same.

test/basic024/input.in → test/basic024/inputrenamed

The content is the same.

test/basic024/run.sh → test/basic024/runrenamed+1−1

@@ -1,6 +1,6 @@

1#!/usr/bin/env bash

2

3−${IDRIS:-idris} $@ --quiet --port none < input.in

3+${IDRIS:-idris} $@ --quiet --port none < input

4${IDRIS:-idris} $@ basic024.idr -o basic024

5

6./basic024

test/basic025/expected.out → test/basic025/expectedrenamed

The content is the same.

test/basic025/input.in → test/basic025/inputrenamed

The content is the same.

test/basic025/run.sh → test/basic025/runrenamed+2−2

@@ -1,7 +1,7 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none < input.in

2+${IDRIS:-idris} $@ --quiet --port none < input

3${IDRIS:-idris} $@ -o basic025 basic025.idr

4

5−./basic025 input.in

5+./basic025 input

6

7rm -f basic025 *.ibc

test/basic026/expected.out → test/basic026/expectedrenamed

The content is the same.

test/basic026/run.sh → test/basic026/runrenamed

The content is the same.

test/bignum001/expected.out → test/bignum001/expectedrenamed

The content is the same.

test/bignum001/run.sh → test/bignum001/runrenamed

Only the mode changed.

test/bignum002/expected.out → test/bignum002/expectedrenamed

The content is the same.

test/bignum002/run.sh → test/bignum002/runrenamed

Only the mode changed.

test/bignum003/expected.out → test/bignum003/expectedrenamed

The content is the same.

test/bignum003/run.sh → test/bignum003/runrenamed

Only the mode changed.

test/bounded001/expected.out → test/bounded001/expectedrenamed

The content is the same.

test/bounded001/run.sh → test/bounded001/runrenamed

Only the mode changed.

test/buffer001/expected.out → test/buffer001/expectedrenamed

The content is the same.

test/buffer001/run.sh → test/buffer001/runrenamed

Only the mode changed.

test/buffer002/expected.out → test/buffer002/expectedrenamed

The content is the same.

test/buffer002/run.sh → test/buffer002/runrenamed

Only the mode changed.

test/contrib001/expected.out → test/contrib001/expectedrenamed

The content is the same.

test/contrib001/run.sh → test/contrib001/runrenamed

Only the mode changed.

test/corecords001/expected.out → test/corecords001/expectedrenamed

The content is the same.

test/corecords001/run.sh → test/corecords001/runrenamed

Only the mode changed.

test/corecords002/expected.out → test/corecords002/expectedrenamed

The content is the same.

test/corecords002/run.sh → test/corecords002/runrenamed

Only the mode changed.

test/delab001/expected.out → test/delab001/expectedrenamed

The content is the same.

test/delab001/input.in → test/delab001/inputrenamed

The content is the same.

test/delab001/run.sh → test/delab001/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none --nocolor delab001.idr < input.in

2+${IDRIS:-idris} $@ --quiet --port none --nocolor delab001.idr < input

3rm -f *.ibc

test/directives001/expected.out → test/directives001/expectedrenamed

The content is the same.

test/directives001/run.sh → test/directives001/runrenamed

Only the mode changed.

test/directives002/expected.out → test/directives002/expectedrenamed

The content is the same.

test/directives002/run.sh → test/directives002/runrenamed

The content is the same.

test/directives003/expected.out → test/directives003/expectedrenamed

The content is the same.

test/directives003/run.sh → test/directives003/runrenamed

Only the mode changed.

test/disambig002/expected.out → test/disambig002/expectedrenamed

The content is the same.

test/disambig002/run.sh → test/disambig002/runrenamed

Only the mode changed.

test/docs001/expected.out → test/docs001/expectedrenamed

The content is the same.

test/docs001/input.in → test/docs001/inputrenamed

The content is the same.

test/docs001/run.sh → test/docs001/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none --nocolor docs001.idr < input.in

2+${IDRIS:-idris} $@ --quiet --port none --nocolor docs001.idr < input

3rm *.ibc

test/docs002/expected.out → test/docs002/expectedrenamed

The content is the same.

test/docs002/input.in → test/docs002/inputrenamed

The content is the same.

test/docs002/run.sh → test/docs002/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --nobanner --nocolor --quiet --port none docs002.idr < input.in

2+${IDRIS:-idris} $@ --nobanner --nocolor --quiet --port none docs002.idr < input

3rm *.ibc

test/docs003/expected.out → test/docs003/expectedrenamed

The content is the same.

test/docs003/input.in → test/docs003/inputrenamed

The content is the same.

test/docs003/run.sh → test/docs003/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none --nocolor docs003.idr < input.in

2+${IDRIS:-idris} $@ --quiet --port none --nocolor docs003.idr < input

3rm *.ibc

test/docs004/expected.out → test/docs004/expectedrenamed

The content is the same.

test/docs004/input.in → test/docs004/inputrenamed

The content is the same.

test/docs004/run.sh → test/docs004/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none --nocolor docs004.idr < input.in

2+${IDRIS:-idris} $@ --quiet --port none --nocolor docs004.idr < input

3rm *.ibc

test/docs005/expected.out → test/docs005/expectedrenamed

The content is the same.

test/docs005/input.in → test/docs005/inputrenamed

The content is the same.

test/docs005/run.sh → test/docs005/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none --nocolor docs005.idr < input.in

2+${IDRIS:-idris} $@ --quiet --port none --nocolor docs005.idr < input

3rm *.ibc

test/docs006/expected.out → test/docs006/expectedrenamed

The content is the same.

test/docs006/input.in → test/docs006/inputrenamed

The content is the same.

test/docs006/run.sh → test/docs006/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none --nocolor docs006.idr < input.in

2+${IDRIS:-idris} $@ --quiet --port none --nocolor docs006.idr < input

3rm *.ibc

test/dsl001/expected.out → test/dsl001/expectedrenamed

The content is the same.

test/dsl001/input.in → test/dsl001/inputrenamed

The content is the same.

test/dsl001/run.sh → test/dsl001/runrenamed+1−1

@@ -1,5 +1,5 @@

1#!/usr/bin/env bash

2${IDRIS:-idris} $@ test001.idr -o test001 --partial-eval

3./test001

4−${IDRIS:-idris} $@ test001.idr --partial-eval --quiet --port none < input.in

4+${IDRIS:-idris} $@ test001.idr --partial-eval --quiet --port none < input

5rm -f test001 test001.ibc

test/dsl002/expected.out → test/dsl002/expectedrenamed

The content is the same.

test/dsl002/run.sh → test/dsl002/runrenamed

Only the mode changed.

test/dsl002/test.in → test/dsl002/testrenamed

The content is the same.

test/dsl002/test014.idr+1−1

@@ -64,6 +64,6 @@ readH fn = res (do let x = open fn Reading

64 else rputStrLn "Error")

65

66main : IO ()

67−main = run (readH "test.in")

67+main = run (readH "test")

68

69

test/dsl003/expected.out → test/dsl003/expectedrenamed

The content is the same.

test/dsl003/run.sh → test/dsl003/runrenamed

Only the mode changed.

test/dsl004/expected.out → test/dsl004/expectedrenamed

The content is the same.

test/dsl004/run.sh → test/dsl004/runrenamed

Only the mode changed.

test/effects001/expected.out → test/effects001/expectedrenamed

The content is the same.

test/effects001/run.sh → test/effects001/runrenamed

Only the mode changed.

test/effects001/test021.idr+1−1

@@ -31,7 +31,7 @@ readFileCount = readAcc []

31

32testFile : TestFileIO () ()

33testFile = do

34− Success <- open "testFile.in" Read

34+ Success <- open "testFile" Read

35 | (FError err) => do

36 putStrLn "Error!"

37 pure ()

test/effects001/testFile.in → test/effects001/testFilerenamed

The content is the same.

test/effects002/expected.out → test/effects002/expectedrenamed

The content is the same.

test/effects002/run.sh → test/effects002/runrenamed

Only the mode changed.

test/effects003/expected.out → test/effects003/expectedrenamed

The content is the same.

test/effects003/input.in → test/effects003/inputrenamed

The content is the same.

test/effects003/run.sh → test/effects003/runrenamed+1−1

@@ -1,4 +1,4 @@

1#!/usr/bin/env bash

2${IDRIS:-idris} $@ hangman.idr --nocolour -p effects -o hangman

3−./hangman < input.in

3+./hangman < input

4rm -f hangman *.ibc

test/effects004/expected.out → test/effects004/expectedrenamed

The content is the same.

test/effects004/input.in → test/effects004/inputrenamed

The content is the same.

test/effects004/run.sh → test/effects004/runrenamed+1−1

@@ -1,4 +1,4 @@

1#!/usr/bin/env bash

2${IDRIS:-idris} $@ effects004.idr -o effects004 -p effects

3−./effects004 < input.in

3+./effects004 < input

4rm -f effects004 *.ibc

test/effects005/expected.out → test/effects005/expectedrenamed

The content is the same.

test/effects005/run.sh → test/effects005/runrenamed

Only the mode changed.

test/error001/expected.out → test/error001/expectedrenamed

The content is the same.

test/error001/run.sh → test/error001/runrenamed

Only the mode changed.

test/error002/expected.out → test/error002/expectedrenamed

The content is the same.

test/error002/run.sh → test/error002/runrenamed

Only the mode changed.

test/error003/expected.out → test/error003/expectedrenamed

The content is the same.

test/error003/run.sh → test/error003/runrenamed

Only the mode changed.

test/error004/expected.out → test/error004/expectedrenamed

The content is the same.

test/error004/run.sh → test/error004/runrenamed

Only the mode changed.

test/error005/expected.out → test/error005/expectedrenamed

The content is the same.

test/error005/run.sh → test/error005/runrenamed

Only the mode changed.

test/error006/expected.out → test/error006/expectedrenamed

The content is the same.

test/error006/run.sh → test/error006/runrenamed

Only the mode changed.

test/error007/expected.out → test/error007/expectedrenamed

The content is the same.

test/error007/run.sh → test/error007/runrenamed

Only the mode changed.

test/error008/expected.out → test/error008/expectedrenamed

The content is the same.

test/error008/run.sh → test/error008/runrenamed

Only the mode changed.

test/error009/expected.out → test/error009/expectedrenamed

The content is the same.

test/error009/run.sh → test/error009/runrenamed

Only the mode changed.

test/ffi001/expected.out → test/ffi001/expectedrenamed

The content is the same.

test/ffi001/run.sh → test/ffi001/runrenamed

Only the mode changed.

test/ffi002/expected.out → test/ffi002/expectedrenamed

The content is the same.

test/ffi002/run.sh → test/ffi002/runrenamed

Only the mode changed.

test/ffi003/expected.out → test/ffi003/expectedrenamed

The content is the same.

test/ffi003/input.in → test/ffi003/inputrenamed

The content is the same.

test/ffi003/run.sh → test/ffi003/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none --nocolour test024.idr --exec main < input.in

2+${IDRIS:-idris} $@ --quiet --port none --nocolour test024.idr --exec main < input

3rm -f *.ibc

test/ffi004/expected.out → test/ffi004/expectedrenamed

The content is the same.

test/ffi004/run.sh → test/ffi004/runrenamed

Only the mode changed.

test/ffi005/expected.out → test/ffi005/expectedrenamed

The content is the same.

test/ffi005/run.sh → test/ffi005/runrenamed

Only the mode changed.

test/ffi006/expected.out → test/ffi006/expectedrenamed

The content is the same.

test/ffi006/run.sh → test/ffi006/runrenamed

Only the mode changed.

test/ffi007/expected.out → test/ffi007/expectedrenamed

The content is the same.

test/ffi007/run.sh → test/ffi007/runrenamed

The content is the same.

test/ffi008/expected.out → test/ffi008/expectedrenamed

The content is the same.

test/ffi008/run.sh → test/ffi008/runrenamed

The content is the same.

test/ffi009/expected.out → test/ffi009/expectedrenamed

The content is the same.

test/ffi009/run.sh → test/ffi009/runrenamed

Only the mode changed.

test/ffi010/expected.out → test/ffi010/expectedrenamed

The content is the same.

test/ffi010/run.sh → test/ffi010/runrenamed

Only the mode changed.

test/ffi011/expected.out → test/ffi011/expectedrenamed

The content is the same.

test/ffi011/ffi011.js → test/ffi011/ffi011renamed

The content is the same.

test/ffi011/run.sh → test/ffi011/runrenamed+1−1

@@ -1,4 +1,4 @@

1#!/usr/bin/env bash

2${IDRIS:-idris} $@ ffi011.idr --interface -o lib.js

3−node ./ffi011.js

3+node ./ffi011

4rm -f *.ibc lib.js

test/ffi012/expected.out → test/ffi012/expectedrenamed

The content is the same.

test/ffi012/ffi012.js → test/ffi012/ffi012renamed

The content is the same.

test/ffi012/run.sh → test/ffi012/runrenamed

Only the mode changed.

test/ffi013/expected.out → test/ffi013/expectedrenamed

The content is the same.

test/ffi013/run.sh → test/ffi013/runrenamed

Only the mode changed.

test/folding001/expected.out → test/folding001/expectedrenamed

The content is the same.

test/folding001/run.sh → test/folding001/runrenamed

Only the mode changed.

test/idrisdoc001/expected.out → test/idrisdoc001/expectedrenamed

The content is the same.

test/idrisdoc001/run.sh → test/idrisdoc001/runrenamed

Only the mode changed.

test/idrisdoc002/expected.out → test/idrisdoc002/expectedrenamed

The content is the same.

test/idrisdoc002/run.sh → test/idrisdoc002/runrenamed

Only the mode changed.

test/idrisdoc003/expected.out → test/idrisdoc003/expectedrenamed

The content is the same.

test/idrisdoc003/run.sh → test/idrisdoc003/runrenamed

Only the mode changed.

test/idrisdoc004/expected.out → test/idrisdoc004/expectedrenamed

The content is the same.

test/idrisdoc004/run.sh → test/idrisdoc004/runrenamed

Only the mode changed.

test/idrisdoc005/expected.out → test/idrisdoc005/expectedrenamed

The content is the same.

test/idrisdoc005/run.sh → test/idrisdoc005/runrenamed

Only the mode changed.

test/idrisdoc006/expected.out → test/idrisdoc006/expectedrenamed

The content is the same.

test/idrisdoc006/run.sh → test/idrisdoc006/runrenamed

Only the mode changed.

test/idrisdoc007/expected.out → test/idrisdoc007/expectedrenamed

The content is the same.

test/idrisdoc007/run.sh → test/idrisdoc007/runrenamed

Only the mode changed.

test/idrisdoc008/expected.out → test/idrisdoc008/expectedrenamed

The content is the same.

test/idrisdoc008/run.sh → test/idrisdoc008/runrenamed

Only the mode changed.

test/idrisdoc009/expected.out → test/idrisdoc009/expectedrenamed

The content is the same.

test/idrisdoc009/input.in → test/idrisdoc009/inputrenamed

The content is the same.

test/idrisdoc009/run.sh → test/idrisdoc009/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --nocolour --quiet --port none Test.idr < input.in

2+${IDRIS:-idris} $@ --nocolour --quiet --port none Test.idr < input

3rm -f *.ibc

test/interactive001/expected.out → test/interactive001/expectedrenamed

The content is the same.

test/interactive001/input.in → test/interactive001/inputrenamed

The content is the same.

test/interactive001/run.sh → test/interactive001/runrenamed+1−1

@@ -1,5 +1,5 @@

1#!/usr/bin/env bash

2

3−${IDRIS:-idris} $@ --quiet --port none --indent-with 8 interactive001.idr < input.in

3+${IDRIS:-idris} $@ --quiet --port none --indent-with 8 interactive001.idr < input

4

5rm -f *.ibc

test/interactive002/expected.out → test/interactive002/expectedrenamed

The content is the same.

test/interactive002/input.in → test/interactive002/inputrenamed

The content is the same.

test/interactive002/run.sh → test/interactive002/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none interactive002.idr < input.in

2+${IDRIS:-idris} $@ --quiet --port none interactive002.idr < input

3rm -f *.ibc

test/interactive003/expected.out → test/interactive003/expectedrenamed

The content is the same.

test/interactive003/input.in → test/interactive003/inputrenamed

The content is the same.

test/interactive003/run.sh → test/interactive003/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none interactive003.idr < input.in

2+${IDRIS:-idris} $@ --quiet --port none interactive003.idr < input

3rm -f *.ibc

test/interactive004/expected.out → test/interactive004/expectedrenamed

The content is the same.

test/interactive004/input.in → test/interactive004/inputrenamed

The content is the same.

test/interactive004/run.sh → test/interactive004/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none interactive004.idr < input.in

2+${IDRIS:-idris} $@ --quiet --port none interactive004.idr < input

3rm -f *.ibc

test/interactive005/expected.out → test/interactive005/expectedrenamed

The content is the same.

test/interactive005/input.in → test/interactive005/inputrenamed

The content is the same.

test/interactive005/run.sh → test/interactive005/runrenamed+1−1

@@ -1,5 +1,5 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --nocolour --quiet --port none interactive005.idr --consolewidth 70 < input.in

2+${IDRIS:-idris} $@ --nocolour --quiet --port none interactive005.idr --consolewidth 70 < input

3rm -f *.ibc

4rm -f hello.bytecode

5rm -f hello

test/interactive006/expected.out → test/interactive006/expectedrenamed

The content is the same.

test/interactive006/input.in → test/interactive006/inputrenamed

The content is the same.

test/interactive006/run.sh → test/interactive006/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none --port 5000 interactive006.idr < input.in

2+${IDRIS:-idris} $@ --quiet --port none --port 5000 interactive006.idr < input

3rm -f *.ibc

test/interactive007/expected.out → test/interactive007/expectedrenamed

The content is the same.

test/interactive007/input.in → test/interactive007/inputrenamed

The content is the same.

test/interactive007/run.sh → test/interactive007/runrenamed+1−1

@@ -1,2 +1,2 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ -p contrib --nobanner --nocolor --port none < input.in | perl -pe 's-Data\\Z-Data/Z-g'

2+${IDRIS:-idris} $@ -p contrib --nobanner --nocolor --port none < input | perl -pe 's-Data\\Z-Data/Z-g'

test/interactive008/expected.out → test/interactive008/expectedrenamed

The content is the same.

test/interactive008/input.in → test/interactive008/inputrenamed

The content is the same.

test/interactive008/runnew file+2

@@ -0,0 +1,2 @@

1+#!/usr/bin/env bash

2+${IDRIS:-idris} $@ --nobanner --nocolor --port none < input

test/interactive008/run.shdeleted−2

@@ -1,2 +0,0 @@

1−#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --nobanner --nocolor --port none < input.in

test/interactive009/expected.out → test/interactive009/expectedrenamed

The content is the same.

test/interactive009/input.in → test/interactive009/inputrenamed

The content is the same.

test/interactive009/run.sh → test/interactive009/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none interactive009.idr < input.in

2+${IDRIS:-idris} $@ --quiet --port none interactive009.idr < input

3rm -f *.ibc

test/interactive010/expected.out → test/interactive010/expectedrenamed

The content is the same.

test/interactive010/input.in → test/interactive010/inputrenamed

The content is the same.

test/interactive010/run.sh → test/interactive010/runrenamed+1−1

@@ -1,2 +1,2 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none --nobanner --nocolor < input.in

2+${IDRIS:-idris} $@ --quiet --port none --nobanner --nocolor < input

test/interactive011/expected.out → test/interactive011/expectedrenamed

The content is the same.

test/interactive011/input.in → test/interactive011/inputrenamed

The content is the same.

test/interactive011/run.sh → test/interactive011/runrenamed+1−1

@@ -1,6 +1,6 @@

1#!/usr/bin/env bash

2

3cd src

4−${IDRIS:-idris} "$@" --quiet --port none --indent-clause 4 Main.idr <../input.in

4+${IDRIS:-idris} "$@" --quiet --port none --indent-clause 4 Main.idr <../input

5

6rm -f *.ibc

test/interactive012/expected.out → test/interactive012/expectedrenamed

The content is the same.

test/interactive012/input.in → test/interactive012/inputrenamed

The content is the same.

test/interactive012/run.sh → test/interactive012/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --nocolour --consolewidth 70 --quiet --port none interactive012.idr < input.in

2+${IDRIS:-idris} $@ --nocolour --consolewidth 70 --quiet --port none interactive012.idr < input

3rm -f *.ibc

test/interactive013/expected.out → test/interactive013/expectedrenamed

The content is the same.

test/interactive013/input.in → test/interactive013/inputrenamed

The content is the same.

test/interactive013/run.sh → test/interactive013/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none interactive013.idr < input.in

2+${IDRIS:-idris} $@ --quiet --port none interactive013.idr < input

3rm -f *.ibc

test/interactive014/expected.out → test/interactive014/expectedrenamed

The content is the same.

test/interactive014/input.in → test/interactive014/inputrenamed

The content is the same.

test/interactive014/run.sh → test/interactive014/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none interactive014.idr < input.in

2+${IDRIS:-idris} $@ --quiet --port none interactive014.idr < input

3rm -f *.ibc

test/interactive015/expected.out → test/interactive015/expectedrenamed

The content is the same.

test/interactive015/input.in → test/interactive015/inputrenamed

The content is the same.

test/interactive015/run.sh → test/interactive015/runrenamed+1−1

@@ -1,7 +1,7 @@

1#!/usr/bin/env bash

2

3cp src/interactive015.idr .

4−${IDRIS:-idris} "$@" --quiet --port none interactive015.idr < input.in

4+${IDRIS:-idris} "$@" --quiet --port none interactive015.idr < input

5

6cat interactive015.idr

7

test/interactive016/expected.out → test/interactive016/expectedrenamed

The content is the same.

test/interactive016/input.in → test/interactive016/inputrenamed

The content is the same.

test/interactive016/run.sh → test/interactive016/runrenamed+1−1

@@ -1,7 +1,7 @@

1#!/usr/bin/env bash

2

3cp src/interactive016.idr .

4−${IDRIS:-idris} "$@" --quiet --port none interactive016.idr < input.in

4+${IDRIS:-idris} "$@" --quiet --port none interactive016.idr < input

5

6cat interactive016.idr

7

test/interactive017/expected.out → test/interactive017/expectedrenamed

The content is the same.

test/interactive017/run.sh → test/interactive017/runrenamed

Only the mode changed.

test/interactive018/expected.out → test/interactive018/expectedrenamed

The content is the same.

test/interactive018/input.in → test/interactive018/inputrenamed

The content is the same.

test/interactive018/runnew file+3

@@ -0,0 +1,3 @@

1+#!/usr/bin/env bash

2+${IDRIS:-idris} $@ --quiet --port none Top.idr < input

3+rm -f *.ibc

test/interactive018/run.shdeleted−3

@@ -1,3 +0,0 @@

1−#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none Top.idr < input.in

3−rm -f *.ibc

test/interfaces001/expected.out → test/interfaces001/expectedrenamed

The content is the same.

test/interfaces001/input.in → test/interfaces001/inputrenamed

The content is the same.

test/interfaces001/run.sh → test/interfaces001/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none --nocolour --consolewidth 70 InterfaceName.idr < input.in

2+${IDRIS:-idris} $@ --quiet --port none --nocolour --consolewidth 70 InterfaceName.idr < input

3rm -f *.ibc

test/interfaces002/expected.out → test/interfaces002/expectedrenamed

The content is the same.

test/interfaces002/run.sh → test/interfaces002/runrenamed

Only the mode changed.

test/interfaces003/expected.out → test/interfaces003/expectedrenamed

The content is the same.

test/interfaces003/run.sh → test/interfaces003/runrenamed

Only the mode changed.

test/interfaces004/expected.out → test/interfaces004/expectedrenamed

The content is the same.

test/interfaces004/run.sh → test/interfaces004/runrenamed

Only the mode changed.

test/interfaces005/expected.out → test/interfaces005/expectedrenamed

The content is the same.

test/interfaces005/run.sh → test/interfaces005/runrenamed

Only the mode changed.

test/interfaces006/expected.out → test/interfaces006/expectedrenamed

The content is the same.

test/interfaces006/run.sh → test/interfaces006/runrenamed

Only the mode changed.

test/interfaces007/expected.out → test/interfaces007/expectedrenamed

The content is the same.

test/interfaces007/run.sh → test/interfaces007/runrenamed

Only the mode changed.

test/interfaces008/expected.out → test/interfaces008/expectedrenamed

The content is the same.

test/interfaces008/run.sh → test/interfaces008/runrenamed

Only the mode changed.

test/interfaces009/expected.out → test/interfaces009/expectedrenamed

The content is the same.

test/interfaces009/run.sh → test/interfaces009/runrenamed

Only the mode changed.

test/interfaces010/expected.out → test/interfaces010/expectedrenamed

The content is the same.

test/interfaces010/run.sh → test/interfaces010/runrenamed

Only the mode changed.

test/interpret001/expected.out → test/interpret001/expectedrenamed

The content is the same.

test/interpret001/input.in → test/interpret001/inputrenamed

The content is the same.

test/interpret001/run.sh → test/interpret001/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none --nocolour double-echo.idr < input.in

2+${IDRIS:-idris} $@ --quiet --port none --nocolour double-echo.idr < input

3rm -f *.ibc

test/interpret002/expected.out → test/interpret002/expectedrenamed

The content is the same.

test/interpret002/input.in → test/interpret002/inputrenamed

The content is the same.

test/interpret002/run.sh → test/interpret002/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none --nocolour file-error.idr < input.in

2+${IDRIS:-idris} $@ --quiet --port none --nocolour file-error.idr < input

3rm -f *.ibc

test/interpret003/expected.out → test/interpret003/expectedrenamed

The content is the same.

test/interpret003/input.in → test/interpret003/inputrenamed

The content is the same.

test/interpret003/run.sh → test/interpret003/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none --nocolour interpret003.idr < input.in

2+${IDRIS:-idris} $@ --quiet --port none --nocolour interpret003.idr < input

3rm -f *.ibc

test/io001/expected.out → test/io001/expectedrenamed

The content is the same.

test/io001/run.sh → test/io001/runrenamed

Only the mode changed.

test/io002/expected.out → test/io002/expectedrenamed

The content is the same.

test/io002/run.sh → test/io002/runrenamed

Only the mode changed.

test/io003/expected.out → test/io003/expectedrenamed

The content is the same.

test/io003/run.sh → test/io003/runrenamed

Only the mode changed.

test/layout001/expected.out → test/layout001/expectedrenamed

The content is the same.

test/layout001/run.sh → test/layout001/runrenamed

Only the mode changed.

test/literate001/expected.out → test/literate001/expectedrenamed

The content is the same.

test/literate001/run.sh → test/literate001/runrenamed

Only the mode changed.

test/meta001/expected.out → test/meta001/expectedrenamed

The content is the same.

test/meta001/run.sh → test/meta001/runrenamed

Only the mode changed.

test/meta002/expected.out → test/meta002/expectedrenamed

The content is the same.

test/meta002/run.sh → test/meta002/runrenamed

Only the mode changed.

test/meta003/expected.out → test/meta003/expectedrenamed

The content is the same.

test/meta003/run.sh → test/meta003/runrenamed

Only the mode changed.

test/meta004/expected.out → test/meta004/expectedrenamed

The content is the same.

test/meta004/run.sh → test/meta004/runrenamed

Only the mode changed.

test/pkg001/expected.out → test/pkg001/expectedrenamed

The content is the same.

test/pkg001/run.sh → test/pkg001/runrenamed

Only the mode changed.

test/pkg001/test-pkg.ipkg+3−3

@@ -12,6 +12,6 @@ license = BSD3 but see LICENSE for more information

12brief = "This is a test package."

13readme = README.md

14version = 1234

15−homepage = https://www.idris-lang.org

15+homepage = http://www.idris-lang.org

16−sourceloc = https://www.github.com/idris-lang/Idris-Dev

16+sourceloc = http://ww.github.com/idris-lang/Idris-Dev

17−bugtracker = https://www.github.com/idris-lang/Idris-Dev/issues

17+bugtracker = http://ww.github.com/idris-lang/Idris-Dev/issues

test/pkg002/expected.out → test/pkg002/expectedrenamed

The content is the same.

test/pkg002/run.sh → test/pkg002/runrenamed

Only the mode changed.

test/pkg003/expected.out → test/pkg003/expectedrenamed

The content is the same.

test/pkg003/run.sh → test/pkg003/runrenamed

Only the mode changed.

test/pkg004/expected.out → test/pkg004/expectedrenamed

The content is the same.

test/pkg004/run.sh → test/pkg004/runrenamed

Only the mode changed.

test/pkg005/expected.out → test/pkg005/expectedrenamed

The content is the same.

test/pkg005/run.sh → test/pkg005/runrenamed

Only the mode changed.

test/pkg006/expected.out → test/pkg006/expectedrenamed

The content is the same.

test/pkg006/run.sh → test/pkg006/runrenamed

Only the mode changed.

test/pkg007/expected.out → test/pkg007/expectedrenamed

The content is the same.

test/pkg007/input.in → test/pkg007/inputrenamed

The content is the same.

test/pkg007/run.sh → test/pkg007/runrenamed+1−1

@@ -2,6 +2,6 @@

2cd toy

3${IDRIS:-idris} $@ --build toy.ipkg --ibcsubdir ../ibcout

4cd ../ibcout

5−${IDRIS:-idris} $@ --quiet < ../input.in

5+${IDRIS:-idris} $@ --quiet < ../input

6cd ..

7rm -rf ibcout

test/pkg008/expected.out → test/pkg008/expectedrenamed

The content is the same.

test/pkg008/run.sh → test/pkg008/runrenamed

Only the mode changed.

test/pkg009/expected.out → test/pkg009/expectedrenamed

The content is the same.

test/pkg009/run.sh → test/pkg009/runrenamed

Only the mode changed.

test/pkg010/expectednew file+31

@@ -0,0 +1,31 @@

1+Uncaught error: user error (wrongopts.ipkg:4:1:

2+ |

3+4 | <empty line>

4+ | ^

5+Invalid option `-total'

6+

8+ [--client ARG] | [--log LEVEL] | [--logging-categories CATS] |

9+ [--nobasepkgs] | [--noprelude] | [--nobuiltins] | [--check] |

11+ [--partial] | [--warnpartial] | [--warnreach] | [--warnipkg] |

12+ [--nocoverage] | [--errorcontext] | [--info] | [--listlogcats] |

14+ | [--V1] | [-V|--V0|--verbose] | [--ibcsubdir FILE] |

15+ [-i|--idrispath ARG] | [--sourcepath ARG] | [--warn] |

17+ [--repl IPKG] | [--clean IPKG] | [--mkdoc IPKG] | [--installdoc IPKG] |

18+ [--checkpkg IPKG] | [--testpkg IPKG] | [--indent-with INDENT] |

19+ [--indent-clause INDENT] | [--bytecode ARG] | [-S|--codegenonly] |

20+ [-c|--compileonly] | [--dumpdefuns ARG] | [--dumpcases ARG] |

21+ [--codegen TARGET] | [--portable-codegen TARGET] | [--cg-opt ARG] |

23+ [--O3] | [--O2] | [--O1] | [--O0] | [--partial-eval] |

24+ [--no-partial-eval] |

25+ [--optimise-nat-like-types|--optimize-nat-like-types] |

26+ [--no-optimise-nat-like-types|--no-optimize-nat-like-types] |

29+ [--no-tactic-deprecation-warnings] |

30+ [--allow-capitalized-pattern-variables]) [FILES] [-v|--version]

31+)

test/pkg010/expected.outdeleted−29

@@ -1,29 +0,0 @@

1−Uncaught error: user error (wrongopts.ipkg:4:1:

2− |

3−4 | <empty line>

4− | ^

5−Invalid option `-total'

6−

8− --client ARG | --log LEVEL | --logging-categories CATS |

9− --nobasepkgs | --noprelude | --nobuiltins | --check |

13− --libdir | --docdir | --include | --V2 | --V1 | (-V|--V0|--verbose) |

16− --repl IPKG | --clean IPKG | --mkdoc IPKG | --installdoc IPKG |

17− --checkpkg IPKG | --testpkg IPKG | --indent-with INDENT |

18− --indent-clause INDENT | --bytecode ARG | (-S|--codegenonly) |

19− (-c|--compileonly) | --dumpdefuns ARG | --dumpcases ARG |

20− --codegen TARGET | --portable-codegen TARGET | --cg-opt ARG |

22− --O3 | --O2 | --O1 | --O0 | --partial-eval | --no-partial-eval |

23− (--optimise-nat-like-types|--optimize-nat-like-types) |

24− (--no-optimise-nat-like-types|--no-optimize-nat-like-types) |

26− (--nocolor|--nocolour) | --consolewidth WIDTH | --highlight |

27− --no-tactic-deprecation-warnings |

28− --allow-capitalized-pattern-variables] [FILES] [-v|--version]

29−)

test/pkg010/run.sh → test/pkg010/runrenamed

Only the mode changed.

test/prelude001/expected.out → test/prelude001/expectedrenamed

The content is the same.

test/prelude001/run.sh → test/prelude001/runrenamed

Only the mode changed.

test/primitives001/expected.out → test/primitives001/expectedrenamed

The content is the same.

test/primitives001/input.in → test/primitives001/inputrenamed

The content is the same.

test/primitives001/run.sh → test/primitives001/runrenamed+1−1

@@ -2,5 +2,5 @@

2${IDRIS:-idris} $@ test005.idr -o test005

3./test005

4${IDRIS:-idris} $@ substring.idr -o substring

5−./substring < input.in

5+./substring < input

6rm -f test005 substring *.ibc

test/primitives002/expected.out → test/primitives002/expectedrenamed

The content is the same.

test/primitives002/run.sh → test/primitives002/runrenamed

Only the mode changed.

test/primitives003/expected.out → test/primitives003/expectedrenamed

The content is the same.

test/primitives003/run.sh → test/primitives003/runrenamed

Only the mode changed.

test/primitives004-disabled/expected.out → test/primitives004-disabled/expectedrenamed

The content is the same.

test/primitives004-disabled/run.sh → test/primitives004-disabled/runrenamed

Only the mode changed.

test/primitives005/expected.out → test/primitives005/expectedrenamed

The content is the same.

test/primitives005/run.sh → test/primitives005/runrenamed

The content is the same.

test/primitives006/expected.out → test/primitives006/expectedrenamed

The content is the same.

test/primitives006/run.sh → test/primitives006/runrenamed

Only the mode changed.

test/proof001/expected.out → test/proof001/expectedrenamed

The content is the same.

test/proof001/run.sh → test/proof001/runrenamed

Only the mode changed.

test/proof002/expected.out → test/proof002/expectedrenamed

The content is the same.

test/proof002/run.sh → test/proof002/runrenamed

Only the mode changed.

test/proof003/expected.out → test/proof003/expectedrenamed

The content is the same.

test/proof003/run.sh → test/proof003/runrenamed

Only the mode changed.

test/proof004/expected.out → test/proof004/expectedrenamed

The content is the same.

test/proof004/run.sh → test/proof004/runrenamed

Only the mode changed.

test/proof005/expected.out → test/proof005/expectedrenamed

The content is the same.

test/proof005/run.sh → test/proof005/runrenamed

Only the mode changed.

test/proof006/expected.out → test/proof006/expectedrenamed

The content is the same.

test/proof006/run.sh → test/proof006/runrenamed

Only the mode changed.

test/proof007/expected.out → test/proof007/expectedrenamed

The content is the same.

test/proof007/run.sh → test/proof007/runrenamed

Only the mode changed.

test/proof008/expected.out → test/proof008/expectedrenamed

The content is the same.

test/proof008/run.sh → test/proof008/runrenamed

Only the mode changed.

test/proof009/expected.out → test/proof009/expectedrenamed

The content is the same.

test/proof009/input.in → test/proof009/inputrenamed

The content is the same.

test/proof009/run.sh → test/proof009/runrenamed+1−1

@@ -1,3 +1,3 @@

1#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --consolewidth 70 --quiet --port none proof009.idr < input.in

2+${IDRIS:-idris} $@ --consolewidth 70 --quiet --port none proof009.idr < input

3rm -f *.ibc

test/proof010/expected.out → test/proof010/expectedrenamed

The content is the same.

test/proof010/run.sh → test/proof010/runrenamed

Only the mode changed.

test/proof011/expected.out → test/proof011/expectedrenamed

The content is the same.

test/proof011/run.sh → test/proof011/runrenamed

Only the mode changed.

test/proofsearch001/expected.out → test/proofsearch001/expectedrenamed

The content is the same.

test/proofsearch001/run.sh → test/proofsearch001/runrenamed

Only the mode changed.

test/proofsearch002/expected.out → test/proofsearch002/expectedrenamed

The content is the same.

test/proofsearch002/run.sh → test/proofsearch002/runrenamed

Only the mode changed.

test/proofsearch003/expected.out → test/proofsearch003/expectedrenamed

The content is the same.

test/proofsearch003/run.sh → test/proofsearch003/runrenamed

Only the mode changed.

test/pruviloj001/expected.out → test/pruviloj001/expectedrenamed

The content is the same.

test/pruviloj001/run.sh → test/pruviloj001/runrenamed

Only the mode changed.

test/quasiquote001/expected.out → test/quasiquote001/expectedrenamed

The content is the same.

test/quasiquote001/run.sh → test/quasiquote001/runrenamed

Only the mode changed.

test/quasiquote002/expected.out → test/quasiquote002/expectedrenamed

The content is the same.

test/quasiquote002/run.sh → test/quasiquote002/runrenamed

Only the mode changed.

test/quasiquote003/expected.out → test/quasiquote003/expectedrenamed

The content is the same.

test/quasiquote003/run.sh → test/quasiquote003/runrenamed

Only the mode changed.

test/quasiquote004/expected.out → test/quasiquote004/expectedrenamed

The content is the same.

test/quasiquote004/run.sh → test/quasiquote004/runrenamed

Only the mode changed.

test/quasiquote005/expected.out → test/quasiquote005/expectedrenamed

The content is the same.

test/quasiquote005/run.sh → test/quasiquote005/runrenamed

Only the mode changed.

test/quasiquote006/expected.out → test/quasiquote006/expectedrenamed

The content is the same.

test/quasiquote006/run.sh → test/quasiquote006/runrenamed

Only the mode changed.

test/records001/expected.out → test/records001/expectedrenamed

The content is the same.

test/records001/run.sh → test/records001/runrenamed

Only the mode changed.

test/records002/expected.out → test/records002/expectedrenamed

The content is the same.

test/records002/run.sh → test/records002/runrenamed

Only the mode changed.

test/records003/expected.out → test/records003/expectedrenamed

The content is the same.

test/records003/run.sh → test/records003/runrenamed

Only the mode changed.

test/records004/expected.out → test/records004/expectedrenamed

The content is the same.

test/records004/run.sh → test/records004/runrenamed

Only the mode changed.

test/records005/expected.out → test/records005/expectedrenamed

The content is the same.

test/records005/run.sh → test/records005/runrenamed

Only the mode changed.

test/reg001/expected.out → test/reg001/expectedrenamed

The content is the same.

test/reg001/run.sh → test/reg001/runrenamed

Only the mode changed.

test/reg002/expected.out → test/reg002/expectedrenamed

The content is the same.

test/reg002/run.sh → test/reg002/runrenamed

Only the mode changed.

test/reg004/expected.out → test/reg004/expectedrenamed

The content is the same.

test/reg004/run.sh → test/reg004/runrenamed

Only the mode changed.

test/reg005/expected.out → test/reg005/expectedrenamed

The content is the same.

test/reg005/run.sh → test/reg005/runrenamed

Only the mode changed.

test/reg007/expected.out → test/reg007/expectedrenamed

The content is the same.

test/reg007/run.sh → test/reg007/runrenamed

Only the mode changed.

test/reg013/expected.out → test/reg013/expectedrenamed

The content is the same.

test/reg013/run.sh → test/reg013/runrenamed

Only the mode changed.

test/reg016/expected.out → test/reg016/expectedrenamed

The content is the same.

test/reg016/run.sh → test/reg016/runrenamed

Only the mode changed.

test/reg017/expected.out → test/reg017/expectedrenamed

The content is the same.

test/reg017/run.sh → test/reg017/runrenamed

Only the mode changed.

test/reg020/expected.out → test/reg020/expectedrenamed

The content is the same.

test/reg020/run.sh → test/reg020/runrenamed

Only the mode changed.

test/reg024/expected.out → test/reg024/expectedrenamed

The content is the same.

test/reg024/run.sh → test/reg024/runrenamed

Only the mode changed.

test/reg025/expected.out → test/reg025/expectedrenamed

The content is the same.

test/reg025/run.sh → test/reg025/runrenamed

Only the mode changed.

test/reg027/expected.out → test/reg027/expectedrenamed

The content is the same.

test/reg027/run.sh → test/reg027/runrenamed

Only the mode changed.

test/reg029/expected.out → test/reg029/expectedrenamed

The content is the same.

test/reg029/run.sh → test/reg029/runrenamed

Only the mode changed.

test/reg031/expected.out → test/reg031/expectedrenamed

The content is the same.

test/reg031/run.sh → test/reg031/runrenamed

Only the mode changed.

test/reg032/expected.out → test/reg032/expectedrenamed

The content is the same.

test/reg032/run.sh → test/reg032/runrenamed

Only the mode changed.

test/reg039/expected.out → test/reg039/expectedrenamed

The content is the same.

test/reg039/run.sh → test/reg039/runrenamed

Only the mode changed.

test/reg040/expected.out → test/reg040/expectedrenamed

The content is the same.

test/reg040/run.sh → test/reg040/runrenamed

Only the mode changed.

test/reg041/expected.out → test/reg041/expectedrenamed

The content is the same.

test/reg041/run.sh → test/reg041/runrenamed

Only the mode changed.

test/reg042/expected.out → test/reg042/expectedrenamed

The content is the same.

test/reg042/run.sh → test/reg042/runrenamed

Only the mode changed.

test/reg045/expected.out → test/reg045/expectedrenamed

The content is the same.

test/reg045/run.sh → test/reg045/runrenamed

Only the mode changed.

test/reg048/expected.out → test/reg048/expectedrenamed

The content is the same.

test/reg048/run.sh → test/reg048/runrenamed

Only the mode changed.

test/reg051-disabled/expected.out → test/reg051-disabled/expectedrenamed

The content is the same.

test/reg051-disabled/run.sh → test/reg051-disabled/runrenamed

Only the mode changed.

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test/reg052/run.sh → test/reg052/runrenamed

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test/reg067/expected.out → test/reg067/expectedrenamed

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test/reg075/runnew file+3

@@ -0,0 +1,3 @@

1+#!/usr/bin/env bash

2+${IDRIS:-idris} $@ --quiet --port none reg075.idr < input

3+rm -f *.ibc

test/reg075/run.shdeleted−3

@@ -1,3 +0,0 @@

1−#!/usr/bin/env bash

2−${IDRIS:-idris} $@ --quiet --port none reg075.idr < input.in

3−rm -f *.ibc

test/reg076/expected.out → test/reg076/expectedrenamed

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test/reg076/input.in → test/reg076/inputrenamed

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test/regression001/expected.out → test/regression001/expectedrenamed

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test/regression001/run.sh → test/regression001/runrenamed

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test/sourceLocation001/expected.out → test/sourceLocation001/expectedrenamed

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test/st001/test001.idr+1−1

@@ -40,7 +40,7 @@ readFileCount fh cnt =

40

41testFile : (ConsoleIO m, File m) => ST m () []

42testFile = with ST do

43− Right fileHandle <- open "testFile.in" Read

43+ Right fileHandle <- open "testFile" Read

44 | Left ferr => do putStrLn (show ferr)

45 pure ()

46 count <- new 0

test/st001/testFile.in → test/st001/testFilerenamed

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test/st002/expected.out → test/st002/expectedrenamed

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test/st002/run.sh → test/st002/runrenamed

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test/st002/test002.idr+1−1

@@ -40,7 +40,7 @@ readFileCount fh cnt =

40

41testFile : (ConsoleIO m, File m) => ST m () []

42testFile = with ST do

43− Right fileHandle <- open "testFile.in" Read

43+ Right fileHandle <- open "testFile" Read

44 | Left ferr => do putStrLn (show ferr)

45 pure ()

46 count <- new 0

test/st002/testFile.in → test/st002/testFilerenamed

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test/st003/expected.out → test/st003/expectedrenamed

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test/st003/run.sh → test/st003/runrenamed

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test/st003/test003.idr+1−1

@@ -7,7 +7,7 @@ import Control.ST.ImplicitCall

7

8testFile : (ConsoleIO m, File m) => ST m () []

9testFile = with ST do

10− Right str <- readFile "testFile.in"

10+ Right str <- readFile "testFile"

11 | Left ferr => do putStrLn (show ferr)

12 pure ()

13 putStrLn str

test/st003/testFile.in → test/st003/testFilerenamed

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test/st004/run.sh → test/st004/runrenamed

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test/st005/run.sh → test/st005/runrenamed

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test/st007/expected.out → test/st007/expectedrenamed

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test/st007/run.sh → test/st007/runrenamed

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test/sugar001/run.sh → test/sugar001/runrenamed

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test/sugar002/run.sh → test/sugar002/runrenamed

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test/sugar003/run.sh → test/sugar003/runrenamed

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test/sugar004/run.sh → test/sugar004/runrenamed

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test/sugar005/run.sh → test/sugar005/runrenamed

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test/syntax001/expected.out → test/syntax001/expectedrenamed

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test/syntax001/run.sh → test/syntax001/runrenamed

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test/syntax002/expected.out → test/syntax002/expectedrenamed

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test/syntax002/run.sh → test/syntax002/runrenamed

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test/tactics001/expected.out → test/tactics001/expectedrenamed

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test/tactics001/run.sh → test/tactics001/runrenamed

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test/totality001/expected.out → test/totality001/expectedrenamed

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test/totality001/run.sh → test/totality001/runrenamed

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test/totality002/run.sh → test/totality002/runrenamed

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test/totality003/run.sh → test/totality003/runrenamed

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test/totality004/expected.out → test/totality004/expectedrenamed

The content is the same.

test/totality004/run.sh → test/totality004/runrenamed

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test/totality005/expected.out → test/totality005/expectedrenamed

The content is the same.

test/totality005/run.sh → test/totality005/runrenamed

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test/totality006/run.sh → test/totality006/runrenamed

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The content is the same.

test/totality007/run.sh → test/totality007/runrenamed

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test/totality008/expected.out → test/totality008/expectedrenamed

The content is the same.

test/totality008/run.sh → test/totality008/runrenamed

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test/totality009/expected.out → test/totality009/expectedrenamed

The content is the same.

test/totality009/run.sh → test/totality009/runrenamed

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test/totality010/expected.out → test/totality010/expectedrenamed

The content is the same.

test/totality010/run.sh → test/totality010/runrenamed

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test/totality011/expected.out → test/totality011/expectedrenamed

The content is the same.

test/totality011/run.sh → test/totality011/runrenamed

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test/totality012/expected.out → test/totality012/expectedrenamed

The content is the same.

test/totality012/run.sh → test/totality012/runrenamed

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test/totality013/expected.out → test/totality013/expectedrenamed

The content is the same.

test/totality013/run.sh → test/totality013/runrenamed

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test/totality014/expected.out → test/totality014/expectedrenamed

The content is the same.

test/totality014/run.sh → test/totality014/runrenamed

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test/totality015/expected.out → test/totality015/expectedrenamed

The content is the same.

test/totality015/run.sh → test/totality015/runrenamed

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test/totality016/expected.out → test/totality016/expectedrenamed

The content is the same.

test/totality016/run.sh → test/totality016/runrenamed

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test/totality017/expected.out → test/totality017/expectedrenamed

The content is the same.

test/totality017/run.sh → test/totality017/runrenamed

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test/totality018/expected.out → test/totality018/expectedrenamed

The content is the same.

test/totality018/run.sh → test/totality018/runrenamed

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test/totality019/expected.out → test/totality019/expectedrenamed

The content is the same.

test/totality019/run.sh → test/totality019/runrenamed

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test/totality020/expected.out → test/totality020/expectedrenamed

The content is the same.

test/totality020/run.sh → test/totality020/runrenamed

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test/totality021/expected.out → test/totality021/expectedrenamed

The content is the same.

test/totality021/run.sh → test/totality021/runrenamed

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test/totality022/expected.out → test/totality022/expectedrenamed

The content is the same.

test/totality022/run.sh → test/totality022/runrenamed

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test/totality023/expected.out → test/totality023/expectedrenamed

The content is the same.

test/totality023/run.sh → test/totality023/runrenamed

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test/totality024/expected.out → test/totality024/expectedrenamed

The content is the same.

test/totality024/run.sh → test/totality024/runrenamed

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test/totality025/expected.out → test/totality025/expectedrenamed

The content is the same.

test/totality025/run.sh → test/totality025/runrenamed

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test/totality026/expected.out → test/totality026/expectedrenamed

The content is the same.

test/totality026/run.sh → test/totality026/runrenamed

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test/tutorial001/expected.out → test/tutorial001/expectedrenamed

The content is the same.

test/tutorial001/run.sh → test/tutorial001/runrenamed

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The content is the same.

test/tutorial002/run.sh → test/tutorial002/runrenamed

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The content is the same.

test/tutorial003/run.sh → test/tutorial003/runrenamed

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The content is the same.

test/tutorial004/run.sh → test/tutorial004/runrenamed

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The content is the same.

test/tutorial005/run.sh → test/tutorial005/runrenamed

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The content is the same.

test/tutorial006/run.sh → test/tutorial006/runrenamed

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The content is the same.

test/tutorial007/run.sh → test/tutorial007/runrenamed

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test/unique001/expected.out → test/unique001/expectedrenamed

The content is the same.

test/unique001/run.sh → test/unique001/runrenamed

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The content is the same.

test/unique004/run.sh → test/unique004/runrenamed

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The content is the same.

test/universes001/run.sh → test/universes001/runrenamed

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test/universes002/run.sh → test/universes002/runrenamed

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test/views001/expected.out → test/views001/expectedrenamed

The content is the same.

test/views001/run.sh → test/views001/runrenamed

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The content is the same.

test/views002/run.sh → test/views002/runrenamed

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The content is the same.

test/views003/run.sh → test/views003/runrenamed

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