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[ refactor ] JS backend overhaul (#1609)

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Stefan Höck 2021-07-10 10:15:21 +00:00 committed by GitHub
parent cd81cff241
commit 599d0635e9
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26 changed files with 2069 additions and 1673 deletions
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8
idris2api.ipkg
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@ -17,12 +17,14 @@ modules =
Compiler.Separate, Compiler.Separate,
Compiler.VMCode, Compiler.VMCode,
Compiler.ES.ES, Compiler.ES.Ast,
Compiler.ES.Imperative, Compiler.ES.Codegen,
Compiler.ES.ImperativeAst, Compiler.ES.Doc,
Compiler.ES.Javascript, Compiler.ES.Javascript,
Compiler.ES.Node, Compiler.ES.Node,
Compiler.ES.State,
Compiler.ES.TailRec, Compiler.ES.TailRec,
Compiler.ES.ToAst,
Compiler.Interpreter.VMCode, Compiler.Interpreter.VMCode,

42
libs/base/Data/Buffer.idr
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@ -19,7 +19,7 @@ data Buffer : Type where [external]
%foreign "scheme:blodwen-buffer-size" %foreign "scheme:blodwen-buffer-size"
"RefC:getBufferSize" "RefC:getBufferSize"
"node:lambda:b => BigInt(b.length)" "node:lambda:b => b.length"
prim__bufferSize : Buffer -> Int prim__bufferSize : Buffer -> Int
export %inline export %inline
@ -28,7 +28,7 @@ rawSize buf = pure (prim__bufferSize buf)
%foreign "scheme:blodwen-new-buffer" %foreign "scheme:blodwen-new-buffer"
"RefC:newBuffer" "RefC:newBuffer"
"node:lambda:s=>Buffer.alloc(Number(s))" "node:lambda:s=>Buffer.alloc(s)"
prim__newBuffer : Int -> PrimIO Buffer prim__newBuffer : Int -> PrimIO Buffer
export export
@ -44,12 +44,12 @@ newBuffer size
%foreign "scheme:blodwen-buffer-setbyte" %foreign "scheme:blodwen-buffer-setbyte"
"RefC:setBufferByte" "RefC:setBufferByte"
"node:lambda:(buf,offset,value)=>buf.writeUInt8(Number(value), Number(offset))" "node:lambda:(buf,offset,value)=>buf.writeUInt8(value, offset)"
prim__setByte : Buffer -> Int -> Int -> PrimIO () prim__setByte : Buffer -> Int -> Int -> PrimIO ()
%foreign "scheme:blodwen-buffer-setbyte" %foreign "scheme:blodwen-buffer-setbyte"
"RefC:setBufferByte" "RefC:setBufferByte"
"node:lambda:(buf,offset,value)=>buf.writeUInt8(Number(value), Number(offset))" "node:lambda:(buf,offset,value)=>buf.writeUInt8(value, offset)"
prim__setBits8 : Buffer -> Int -> Bits8 -> PrimIO () prim__setBits8 : Buffer -> Int -> Bits8 -> PrimIO ()
-- Assumes val is in the range 0-255 -- Assumes val is in the range 0-255
@ -65,12 +65,12 @@ setBits8 buf loc val
%foreign "scheme:blodwen-buffer-getbyte" %foreign "scheme:blodwen-buffer-getbyte"
"RefC:getBufferByte" "RefC:getBufferByte"
"node:lambda:(buf,offset)=>BigInt(buf.readUInt8(Number(offset)))" "node:lambda:(buf,offset)=>buf.readUInt8(offset)"
prim__getByte : Buffer -> Int -> PrimIO Int prim__getByte : Buffer -> Int -> PrimIO Int
%foreign "scheme:blodwen-buffer-getbyte" %foreign "scheme:blodwen-buffer-getbyte"
"RefC:getBufferByte" "RefC:getBufferByte"
"node:lambda:(buf,offset)=>BigInt(buf.readUInt8(Number(offset)))" "node:lambda:(buf,offset)=>buf.readUInt8(offset)"
prim__getBits8 : Buffer -> Int -> PrimIO Bits8 prim__getBits8 : Buffer -> Int -> PrimIO Bits8
export %inline export %inline
@ -84,7 +84,7 @@ getBits8 buf loc
= primIO (prim__getBits8 buf loc) = primIO (prim__getBits8 buf loc)
%foreign "scheme:blodwen-buffer-setbits16" %foreign "scheme:blodwen-buffer-setbits16"
"node:lambda:(buf,offset,value)=>buf.writeUInt16LE(Number(value), Number(offset))" "node:lambda:(buf,offset,value)=>buf.writeUInt16LE(value, offset)"
prim__setBits16 : Buffer -> Int -> Bits16 -> PrimIO () prim__setBits16 : Buffer -> Int -> Bits16 -> PrimIO ()
export %inline export %inline
@ -93,7 +93,7 @@ setBits16 buf loc val
= primIO (prim__setBits16 buf loc val) = primIO (prim__setBits16 buf loc val)
%foreign "scheme:blodwen-buffer-getbits16" %foreign "scheme:blodwen-buffer-getbits16"
"node:lambda:(buf,offset)=>BigInt(buf.readUInt16LE(Number(offset)))" "node:lambda:(buf,offset)=>buf.readUInt16LE(offset)"
prim__getBits16 : Buffer -> Int -> PrimIO Bits16 prim__getBits16 : Buffer -> Int -> PrimIO Bits16
export %inline export %inline
@ -102,7 +102,7 @@ getBits16 buf loc
= primIO (prim__getBits16 buf loc) = primIO (prim__getBits16 buf loc)
%foreign "scheme:blodwen-buffer-setbits32" %foreign "scheme:blodwen-buffer-setbits32"
"node:lambda:(buf,offset,value)=>buf.writeUInt32LE(Number(value), Number(offset))" "node:lambda:(buf,offset,value)=>buf.writeUInt32LE(value, offset)"
prim__setBits32 : Buffer -> Int -> Bits32 -> PrimIO () prim__setBits32 : Buffer -> Int -> Bits32 -> PrimIO ()
export %inline export %inline
@ -111,7 +111,7 @@ setBits32 buf loc val
= primIO (prim__setBits32 buf loc val) = primIO (prim__setBits32 buf loc val)
%foreign "scheme:blodwen-buffer-getbits32" %foreign "scheme:blodwen-buffer-getbits32"
"node:lambda:(buf,offset)=>BigInt(buf.readUInt32LE(Number(offset)))" "node:lambda:(buf,offset)=>buf.readUInt32LE(offset)"
prim__getBits32 : Buffer -> Int -> PrimIO Bits32 prim__getBits32 : Buffer -> Int -> PrimIO Bits32
export %inline export %inline
@ -136,7 +136,7 @@ getBits64 buf loc
= primIO (prim__getBits64 buf loc) = primIO (prim__getBits64 buf loc)
%foreign "scheme:blodwen-buffer-setint32" %foreign "scheme:blodwen-buffer-setint32"
"node:lambda:(buf,offset,value)=>buf.writeInt32LE(Number(value), Number(offset))" "node:lambda:(buf,offset,value)=>buf.writeInt32LE(value, offset)"
prim__setInt32 : Buffer -> Int -> Int -> PrimIO () prim__setInt32 : Buffer -> Int -> Int -> PrimIO ()
export %inline export %inline
@ -145,7 +145,7 @@ setInt32 buf loc val
= primIO (prim__setInt32 buf loc val) = primIO (prim__setInt32 buf loc val)
%foreign "scheme:blodwen-buffer-getint32" %foreign "scheme:blodwen-buffer-getint32"
"node:lambda:(buf,offset)=>BigInt(buf.readInt32LE(Number(offset)))" "node:lambda:(buf,offset)=>buf.readInt32LE(offset)"
prim__getInt32 : Buffer -> Int -> PrimIO Int prim__getInt32 : Buffer -> Int -> PrimIO Int
export %inline export %inline
@ -155,7 +155,7 @@ getInt32 buf loc
%foreign "scheme:blodwen-buffer-setint" %foreign "scheme:blodwen-buffer-setint"
"RefC:setBufferInt" "RefC:setBufferInt"
"node:lambda:(buf,offset,value)=>buf.writeInt64(Number(value), Number(offset))" "node:lambda:(buf,offset,value)=>buf.writeInt32LE(value, offset)"
prim__setInt : Buffer -> Int -> Int -> PrimIO () prim__setInt : Buffer -> Int -> Int -> PrimIO ()
export %inline export %inline
@ -165,7 +165,7 @@ setInt buf loc val
%foreign "scheme:blodwen-buffer-getint" %foreign "scheme:blodwen-buffer-getint"
"RefC:getBufferInt" "RefC:getBufferInt"
"node:lambda:(buf,offset)=>BigInt(buf.readInt64(Number(offset)))" "node:lambda:(buf,offset)=>buf.readInt32LE(offset)"
prim__getInt : Buffer -> Int -> PrimIO Int prim__getInt : Buffer -> Int -> PrimIO Int
export %inline export %inline
@ -175,7 +175,7 @@ getInt buf loc
%foreign "scheme:blodwen-buffer-setdouble" %foreign "scheme:blodwen-buffer-setdouble"
"RefC:setBufferDouble" "RefC:setBufferDouble"
"node:lambda:(buf,offset,value)=>buf.writeDoubleLE(value, Number(offset))" "node:lambda:(buf,offset,value)=>buf.writeDoubleLE(value, offset)"
prim__setDouble : Buffer -> Int -> Double -> PrimIO () prim__setDouble : Buffer -> Int -> Double -> PrimIO ()
export %inline export %inline
@ -185,7 +185,7 @@ setDouble buf loc val
%foreign "scheme:blodwen-buffer-getdouble" %foreign "scheme:blodwen-buffer-getdouble"
"RefC:getBufferDouble" "RefC:getBufferDouble"
"node:lambda:(buf,offset)=>buf.readDoubleLE(Number(offset))" "node:lambda:(buf,offset)=>buf.readDoubleLE(offset)"
prim__getDouble : Buffer -> Int -> PrimIO Double prim__getDouble : Buffer -> Int -> PrimIO Double
export %inline export %inline
@ -200,7 +200,7 @@ stringByteLength : String -> Int
%foreign "scheme:blodwen-buffer-setstring" %foreign "scheme:blodwen-buffer-setstring"
"RefC:setBufferString" "RefC:setBufferString"
"node:lambda:(buf,offset,value)=>buf.write(value, Number(offset),buf.length - Number(offset), 'utf-8')" "node:lambda:(buf,offset,value)=>buf.write(value, offset,buf.length - offset, 'utf-8')"
prim__setString : Buffer -> Int -> String -> PrimIO () prim__setString : Buffer -> Int -> String -> PrimIO ()
export %inline export %inline
@ -210,7 +210,7 @@ setString buf loc val
%foreign "scheme:blodwen-buffer-getstring" %foreign "scheme:blodwen-buffer-getstring"
"RefC:getBufferString" "RefC:getBufferString"
"node:lambda:(buf,offset,len)=>buf.slice(Number(offset), Number(offset+len)).toString('utf-8')" "node:lambda:(buf,offset,len)=>buf.slice(offset, offset+len).toString('utf-8')"
prim__getString : Buffer -> Int -> Int -> PrimIO String prim__getString : Buffer -> Int -> Int -> PrimIO String
export %inline export %inline
@ -235,7 +235,7 @@ bufferData buf
%foreign "scheme:blodwen-buffer-copydata" %foreign "scheme:blodwen-buffer-copydata"
"RefC:copyBuffer" "RefC:copyBuffer"
"node:lambda:(b1,o1,length,b2,o2)=>b1.copy(b2,Number(o2), Number(o1), Number(o1+length))" "node:lambda:(b1,o1,length,b2,o2)=>b1.copy(b2,o2,o1,o1+length)"
prim__copyData : Buffer -> Int -> Int -> Buffer -> Int -> PrimIO () prim__copyData : Buffer -> Int -> Int -> Buffer -> Int -> PrimIO ()
export export
@ -246,12 +246,12 @@ copyData src start len dest loc
%foreign "C:idris2_readBufferData, libidris2_support, idris_file.h" %foreign "C:idris2_readBufferData, libidris2_support, idris_file.h"
"RefC:readBufferData" "RefC:readBufferData"
"node:lambda:(f,b,l,m) => BigInt(require('fs').readSync(f.fd,b,Number(l), Number(m)))" "node:lambda:(f,b,l,m) => require('fs').readSync(f.fd,b,l,m)"
prim__readBufferData : FilePtr -> Buffer -> Int -> Int -> PrimIO Int prim__readBufferData : FilePtr -> Buffer -> Int -> Int -> PrimIO Int
%foreign "C:idris2_writeBufferData, libidris2_support, idris_file.h" %foreign "C:idris2_writeBufferData, libidris2_support, idris_file.h"
"RefC:writeBufferData" "RefC:writeBufferData"
"node:lambda:(f,b,l,m) => BigInt(require('fs').writeSync(f.fd,b,Number(l), Number(m)))" "node:lambda:(f,b,l,m) => require('fs').writeSync(f.fd,b,l,m)"
prim__writeBufferData : FilePtr -> Buffer -> Int -> Int -> PrimIO Int prim__writeBufferData : FilePtr -> Buffer -> Int -> Int -> PrimIO Int
export export

6
libs/base/System.idr
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@ -34,13 +34,13 @@ usleep sec = primIO (prim__usleep sec)
-- Get the number of arguments -- Get the number of arguments
%foreign "scheme:blodwen-arg-count" %foreign "scheme:blodwen-arg-count"
support "idris2_getArgCount" support "idris2_getArgCount"
"node:lambda:() => BigInt(process.argv.length)" "node:lambda:() => process.argv.length"
prim__getArgCount : PrimIO Int prim__getArgCount : PrimIO Int
-- Get argument number `n` -- Get argument number `n`
%foreign "scheme:blodwen-arg" %foreign "scheme:blodwen-arg"
support "idris2_getArg" support "idris2_getArg"
"node:lambda:n => process.argv[(Number(n))]" "node:lambda:n => process.argv[n]"
prim__getArg : Int -> PrimIO String prim__getArg : Int -> PrimIO String
export export
@ -124,7 +124,7 @@ getPID : HasIO io => io Int
getPID = primIO prim__getPID getPID = primIO prim__getPID
%foreign libc "exit" %foreign libc "exit"
"node:lambda:c => process.exit(Number(c))" "node:lambda:c => process.exit(c)"
prim__exit : Int -> PrimIO () prim__exit : Int -> PrimIO ()
||| Programs can either terminate successfully, or end in a caught ||| Programs can either terminate successfully, or end in a caught

8
libs/base/System/File.idr
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@ -27,7 +27,7 @@ prim__open : String -> String -> PrimIO FilePtr
prim__close : FilePtr -> PrimIO () prim__close : FilePtr -> PrimIO ()
%foreign support "idris2_fileError" %foreign support "idris2_fileError"
"node:lambda:x=>(x===1n?BigInt(1):BigInt(0))" "node:lambda:x=>(x===1?1:0)"
prim__error : FilePtr -> PrimIO Int prim__error : FilePtr -> PrimIO Int
%foreign support "idris2_fileErrno" %foreign support "idris2_fileErrno"
@ -52,7 +52,7 @@ prim__readChar : FilePtr -> PrimIO Int
prim__writeLine : FilePtr -> String -> PrimIO Int prim__writeLine : FilePtr -> String -> PrimIO Int
%foreign support "idris2_eof" %foreign support "idris2_eof"
"node:lambda:x=>(x.eof?1n:0n)" "node:lambda:x=>(x.eof?1:0)"
prim__eof : FilePtr -> PrimIO Int prim__eof : FilePtr -> PrimIO Int
%foreign "C:fflush,libc 6" %foreign "C:fflush,libc 6"
@ -66,7 +66,7 @@ prim__pclose : FilePtr -> PrimIO ()
prim__removeFile : String -> PrimIO Int prim__removeFile : String -> PrimIO Int
%foreign support "idris2_fileSize" %foreign support "idris2_fileSize"
"node:lambda:fp=>require('fs').fstatSync(fp.fd, {bigint: true}).size" "node:lambda:fp=>require('fs').fstatSync(fp.fd).size"
prim__fileSize : FilePtr -> PrimIO Int prim__fileSize : FilePtr -> PrimIO Int
%foreign support "idris2_fileSize" %foreign support "idris2_fileSize"
@ -76,7 +76,7 @@ prim__fPoll : FilePtr -> PrimIO Int
prim__fileAccessTime : FilePtr -> PrimIO Int prim__fileAccessTime : FilePtr -> PrimIO Int
%foreign support "idris2_fileModifiedTime" %foreign support "idris2_fileModifiedTime"
"node:lambda:fp=>require('fs').fstatSync(fp.fd, {bigint: true}).mtimeMs / 1000n" "node:lambda:fp=>require('fs').fstatSync(fp.fd).mtimeMs / 1000"
prim__fileModifiedTime : FilePtr -> PrimIO Int prim__fileModifiedTime : FilePtr -> PrimIO Int
%foreign support "idris2_fileStatusTime" %foreign support "idris2_fileStatusTime"

2
libs/prelude/PrimIO.idr
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@ -73,7 +73,7 @@ toPrim : (1 act : IO a) -> PrimIO a
toPrim (MkIO fn) = fn toPrim (MkIO fn) = fn
%foreign "C:idris2_isNull, libidris2_support, idris_support.h" %foreign "C:idris2_isNull, libidris2_support, idris_support.h"
"javascript:lambda:x=>x===undefined||x===null?1n:0n" "javascript:lambda:x=>x===undefined||x===null?1:0"
export export
prim__nullAnyPtr : AnyPtr -> Int prim__nullAnyPtr : AnyPtr -> Int

195
src/Compiler/ES/Ast.idr Normal file
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@ -0,0 +1,195 @@
module Compiler.ES.Ast
import Core.CompileExpr
import Core.Context
import Compiler.Common
import Data.List1
import Data.Nat
import Data.Vect
%default total
||| A variable in a toplevel function definition
|||
||| When generating the syntax tree of imperative
||| statements and expressions, we decide - based on
||| codegen directives - which Idris names to keep
||| and which names to convert to short, mangled
||| versions.
public export
data Var =
||| An unaltered name - usually a toplevel function
||| or a function argument with an explicitly given
||| name
VName Name |
||| Index of a local variables
VLoc Int |
||| Index of a mangled toplevel function
VRef Int
||| A minimal expression.
public export
data Minimal =
||| A variable
MVar Var |
||| A projection targeting the field of a data type.
||| We include these here since it allows us to
||| conveniently carry around a `SortedMap Name Minimal`
||| for name resolution during the generation of the
||| imperative syntax tree.
MProjection Nat Minimal
--------------------------------------------------------------------------------
-- Expressions
--------------------------------------------------------------------------------
||| The effect of a statement or a block of statements.
||| `Returns` means the
||| result of the final expression will be returned as
||| the current function's result, while `ErrorWithout v`
||| is a reminder, that the block of code will eventually
||| assign a value to `v` and will fail to do so if
||| `v` hasn't previously been declared.
|||
||| This is used as a typelevel index to prevent us from
||| making some common stupid errors like declaring a variable
||| twice, or having several `return` statements in the same
||| block of code.
public export
data Effect = Returns | ErrorWithout Var
mutual
||| An expression in a function definition.
public export
data Exp : Type where
||| A variable or projection. Minimal expressions
||| will always be inlined unless explicitly bound
||| in an Idris2 `let` expression.
EMinimal : Minimal -> Exp
||| Lambda expression
|||
||| An empty argument list represents a delayed computation
ELam : List Var -> Stmt (Just Returns) -> Exp
||| Function application.
|||
||| In case of a zero-argument list, we might also be
||| dealing with forcing a delayed computation.
EApp : Exp -> List Exp -> Exp
||| Saturated construtor application.
|||
||| The tag either represents the name of a type constructor
||| (when we are pattern matching on types) or the index
||| of a data constructor.
ECon : (tag : Either Int Name) -> ConInfo -> List Exp -> Exp
||| Primitive operation
EOp : {0 arity : Nat} -> PrimFn arity -> Vect arity Exp -> Exp
||| Externally defined primitive operation.
EExtPrim : Name -> List Exp -> Exp
||| A constant primitive.
EPrimVal : Constant -> Exp
||| An erased value.
EErased : Exp
||| An imperative statement in a function definition.
|||
||| This is indexed over the `Effect` the statement,
||| will have.
||| An `effect` of `Nothing` means that the result of
||| the statement is `undefined`: The declaration of
||| a constant or assignment of a previously declared
||| variable. When we sequence statements in a block
||| of code, all but the last one of them must have
||| effect `Nothing`. This makes sure we properly declare variables
||| exactly once before eventually assigning them.
||| It makes also sure a block of code does not contain
||| several `return` statements (until they are the
||| results of the branches of a `switch` statement).
public export
data Stmt : (effect : Maybe Effect) -> Type where
||| Returns the result of the given expression.
Return : Exp -> Stmt (Just Returns)
||| Introduces a new constant by assigning the result
||| of a single expression to the given variable.
Const : (v : Var) -> Exp -> Stmt Nothing
||| Assigns the result of an expression to the given variable.
||| This will result in an error, if the variable has not
||| yet been declared.
Assign : (v : Var) -> Exp -> Stmt (Just $ ErrorWithout v)
||| Declares (but does not yet assign) a new mutable
||| variable. This is the only way to "saturate"
||| a `Stmt (Just $ ErrorWithout v)`.
Declare : (v : Var) -> Stmt (Just $ ErrorWithout v) -> Stmt Nothing
||| Switch statement from a pattern match on
||| data or type constructors. The result of each branch
||| will have the given `Effect`.
|||
||| The scrutinee has already been lifted to
||| the outer scope to make sure it is only
||| evaluated once.
ConSwitch : (e : Effect)
-> (scrutinee : Minimal)
-> (alts : List $ EConAlt e)
-> (def : Maybe $ Stmt $ Just e)
-> Stmt (Just e)
||| Switch statement from a pattern on
||| a constant. The result of each branch
||| will have the given `Effect`.
ConstSwitch : (e : Effect)
-> (scrutinee : Exp)
-> (alts : List $ EConstAlt e)
-> (def : Maybe $ Stmt $ Just e)
-> Stmt (Just e)
||| A runtime exception.
Error : {0 any : _} -> String -> Stmt (Just any)
||| A code block consisting of one or more
||| imperative statements.
Block : List1 (Stmt Nothing) -> Stmt e -> Stmt e
||| Single branch in a pattern match on a data or
||| type constructor.
public export
record EConAlt (e : Effect) where
constructor MkEConAlt
tag : Either Int Name
conInfo : ConInfo
body : Stmt (Just e)
||| Single branch in a pattern match on a constant
public export
record EConstAlt (e : Effect) where
constructor MkEConstAlt
constant : Constant
body : Stmt (Just e)
export
toMinimal : Exp -> Maybe Minimal
toMinimal (EMinimal v) = Just v
toMinimal _ = Nothing
export
prepend : List (Stmt Nothing) -> Stmt (Just e) -> Stmt (Just e)
prepend [] s = s
prepend (h :: t) s = Block (h ::: t) s
export total
declare : {v : _} -> Stmt (Just $ ErrorWithout v) -> Stmt Nothing
declare (Assign v y) = Const v y
declare (Block ss s) = Block ss $ declare s
declare s = Declare v s

725
src/Compiler/ES/Codegen.idr Normal file
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@ -0,0 +1,725 @@
module Compiler.ES.Codegen
import Compiler.Common
import Core.CompileExpr
import Core.Context
import Core.Directory
import Core.Options
import Data.List1
import Data.String
import Compiler.ES.Ast
import Compiler.ES.Doc
import Compiler.ES.ToAst
import Compiler.ES.TailRec
import Compiler.ES.State
import Libraries.Data.SortedMap
import Libraries.Utils.Hex
import Libraries.Data.String.Extra
import Data.Vect
--------------------------------------------------------------------------------
-- Utilities
--------------------------------------------------------------------------------
-- Split at the given character and remove it.
breakDrop1 : Char -> String -> (String, String)
breakDrop1 c = mapSnd (drop 1) . break (== c)
-- Display a quoted list of strings.
stringList : List String -> String
stringList = fastConcat . intersperse "," . map show
--------------------------------------------------------------------------------
-- JS Strings
--------------------------------------------------------------------------------
-- Convert an Idris2 string to a Javascript String
-- by escaping most non-alphanumeric characters.
jsString : String -> String
jsString s = "'" ++ (concatMap okchar (unpack s)) ++ "'"
where
okchar : Char -> String
okchar c = if (c >= ' ') && (c /= '\\')
&& (c /= '"') && (c /= '\'') && (c <= '~')
then cast c
else case c of
'\0' => "\\0"
'\'' => "\\'"
'"' => "\\\""
'\r' => "\\r"
'\n' => "\\n"
other => "\\u{" ++ asHex (cast {to=Int} c) ++ "}"
||| Alias for Text . jsString
jsStringDoc : String -> Doc
jsStringDoc = Text . jsString
-- A name from the preamble (file `support.js`).
-- the given string is just prefixed with an underscore.
esName : String -> String
esName x = "_" ++ x
-- convert a string to a Javascript identifier
-- by escaping non-alphanumeric characters (except underscores).
jsIdent : String -> String
jsIdent s = concatMap okchar (unpack s)
where
okchar : Char -> String
okchar '_' = "_"
okchar c = if isAlphaNum c
then cast c
else "x" ++ the (String) (asHex (cast {to=Int} c))
keywordSafe : String -> String
keywordSafe "var" = "var$"
keywordSafe "switch" = "switch$"
keywordSafe "return" = "return$"
keywordSafe "const" = "const$"
keywordSafe "function" = "function$"
keywordSafe s = s
--------------------------------------------------------------------------------
-- JS Name
--------------------------------------------------------------------------------
jsName : Name -> String
jsName (NS ns n) = jsIdent (showNSWithSep "_" ns) ++ "_" ++ jsName n
jsName (UN n) = keywordSafe $ jsIdent n
jsName (MN n i) = jsIdent n ++ "_" ++ show i
jsName (PV n d) = "pat__" ++ jsName n
jsName (DN _ n) = jsName n
jsName (RF n) = "rf__" ++ jsIdent n
jsName (Nested (i, x) n) = "n__" ++ show i ++ "_" ++ show x ++ "_" ++ jsName n
jsName (CaseBlock x y) = "case__" ++ jsIdent x ++ "_" ++ show y
jsName (WithBlock x y) = "with__" ++ jsIdent x ++ "_" ++ show y
jsName (Resolved i) = "fn__" ++ show i
jsNameDoc : Name -> Doc
jsNameDoc = Text . jsName
mainExpr : Name
mainExpr = MN "__mainExpression" 0
--------------------------------------------------------------------------------
-- Pretty Printing
--------------------------------------------------------------------------------
var : Var -> Doc
var (VName x) = jsNameDoc x
var (VLoc x) = Text $ "$" ++ asHex x
var (VRef x) = Text $ "$R" ++ asHex x
minimal : Minimal -> Doc
minimal (MVar v) = var v
minimal (MProjection n v) = minimal v <+> ".a" <+> shown n
tag2es : Either Int Name -> Doc
tag2es (Left x) = shown x
tag2es (Right x) = jsStringDoc $ show x
constant : Doc -> Doc -> Doc
constant n d = "const" <++> n <+> softEq <+> d <+> ";"
applyList : (lparen : Doc) -> (rparen : Doc) -> (sep : Doc) -> List Doc -> Doc
applyList l r sep ds = l <+> (concat $ intersperse sep ds) <+> r
conTags : List Doc -> List Doc
conTags as = zipWith (\i,a => hcat ["a",shown i,softColon,a]) [1..length as] as
applyObj : (args : List Doc) -> Doc
applyObj = applyList "{" "}" softComma
-- fully applied constructors are converted to JS objects with fields
-- labeled `a1`, `a2`, and so on for the given list of arguments.
-- a header field (label: `h`) is added holding either the index of
-- the data constructor used or a string representing the type constructor
-- in question.
--
-- Exceptions based on the given `ConInfo`:
-- `NIL` and `NOTHING`-like data constructors are represented as `{h: 0}`,
-- while `CONS`, `JUST`, and `RECORD` come without the header field.
applyCon : ConInfo -> (tag : Either Int Name) -> (args : List Doc) -> Doc
applyCon NIL _ [] = "{h" <+> softColon <+> "0}"
applyCon NOTHING _ [] = "{h" <+> softColon <+> "0}"
applyCon CONS _ as = applyObj (conTags as)
applyCon JUST _ as = applyObj (conTags as)
applyCon RECORD _ as = applyObj (conTags as)
applyCon _ t as = applyObj (("h" <+> softColon <+> tag2es t)::conTags as)
-- applys the given list of arguments to the given function.
app : (fun : Doc) -> (args : List Doc) -> Doc
app fun args = fun <+> applyList "(" ")" softComma args
-- invoke a function whose name is given as a `String` instead
-- of a `Doc`.
callFun : String -> List Doc -> Doc
callFun = app . Text
-- like `callFun` but with just a single argument
callFun1 : String -> Doc -> Doc
callFun1 fun = callFun fun . pure
-- throws an error in JS land with the given error message.
jsCrashExp : (msg : Doc) -> Doc
jsCrashExp = callFun1 (esName "crashExp")
-- creates a toplevel function definition of the form
-- ```javascript
-- function name(args) {
-- body
-- }
function : (name : Doc) -> (args : List Doc) -> (body : Doc) -> Doc
function n args body =
"function" <++> app n args <+> SoftSpace <+> block body
--------------------------------------------------------------------------------
-- Primitives
--------------------------------------------------------------------------------
toBigInt : Doc -> Doc
toBigInt = callFun1 "BigInt"
fromBigInt : Doc -> Doc
fromBigInt = callFun1 "Number"
-- we need to use `BigInt` in JS if an integral type's
-- bit size is greater than 32.
useBigInt' : Int -> Bool
useBigInt' = (> 32)
-- same as `useBigInt'` but based on `IntKind`
useBigInt : IntKind -> Bool
useBigInt (Signed $ P x) = useBigInt' x
useBigInt (Signed Unlimited) = True
useBigInt (Unsigned x) = useBigInt' x
-- call _bigIntOfString from the preamble, which
-- converts a string to a `BigInt`
jsBigIntOfString : Doc -> Doc
jsBigIntOfString = callFun1 (esName "bigIntOfString")
-- call _parseFloat from the preamble, which
-- converts a string to a `Number`
jsNumberOfString : Doc -> Doc
jsNumberOfString = callFun1 "parseFloat"
-- convert an string to an integral type based
-- on its `IntKind`.
jsIntOfString : IntKind -> Doc -> Doc
jsIntOfString k = if useBigInt k then jsBigIntOfString else jsNumberOfString
-- introduce a binary infix operation
binOp : (symbol : String) -> (lhs : Doc) -> (rhs : Doc) -> Doc
binOp sym lhs rhs = hcat ["(", lhs, Text sym, rhs, ")"]
-- converts a `Number` to an integer
-- based on the given precision (`IntKind`).
toInt : IntKind -> Doc -> Doc
toInt k = if useBigInt k then toBigInt else id
-- converts an integer to a `Number`
-- based on the given precision (`IntKind`).
fromInt : IntKind -> Doc -> Doc
fromInt k = if useBigInt k then fromBigInt else id
-- converts a character (in JS, a string of length 1)
-- to an integer.
jsIntOfChar : IntKind -> Doc -> Doc
jsIntOfChar k s = toInt k $ s <+> ".codePointAt(0)"
-- converts a floating point number to an integer.
jsIntOfDouble : IntKind -> Doc -> Doc
jsIntOfDouble k = toInt k . callFun1 "Math.trunc"
jsAnyToString : Doc -> Doc
jsAnyToString s = "(''+" <+> s <+> ")"
-- converts an integer (`Number` or `BigInt`) to a character
-- by calling `_truncToChar` from the preamble.
jsCharOfInt : IntKind -> Doc -> Doc
jsCharOfInt k = callFun1 (esName "truncToChar") . fromInt k
-- Invokes a function from the preamble to check if an bounded
-- signed integer is within bounds, and - if that's not the case -
-- truncate it accordingly.
-- `isBigInt` reflects whether `int` is a `BigInt` or a `Number`.
--
-- Note: We can't determine `isBigInt` from the given number of bits, since
-- when casting from BigInt (for instance, a `Bits64`) to Number
-- we need to truncate the BigInt
-- first, otherwise we might lose precision.
truncateSigned : (isBigInt : Bool) -> (bits : Int) -> (int : Doc) -> Doc
truncateSigned isBigInt bits =
let add = if isBigInt then "BigInt" else "Int"
in callFun1 (esName "trunc" ++ add ++ show bits)
-- like `truncateSigned` but for unsigned integers
truncateUnsigned : (isBigInt : Bool) -> (bits : Int) -> (int : Doc) -> Doc
truncateUnsigned isBigInt bits =
let add = if isBigInt then "BigInt" else "Int"
in callFun1 (esName "truncU" ++ add ++ show bits)
-- invokes an arithmetic operation for a bounded integral value.
-- this is used to implement `boundedIntOp` and `boundedUIntOp`
-- where the suffix is set to "s" or "u", respectively.
boundedOp : (suffix : String)
-> (bits : Int)
-> (op : String)
-> (lhs : Doc)
-> (rhs : Doc)
-> Doc
boundedOp s bits o x y = callFun (fastConcat ["_", o, show bits, s]) [x,y]
-- alias for `boundedOp "s"`
boundedIntOp : Int -> String -> Doc -> Doc -> Doc
boundedIntOp = boundedOp "s"
-- alias for `boundedOp "u"`
boundedUIntOp : Int -> String -> Doc -> Doc -> Doc
boundedUIntOp = boundedOp "u"
-- generates code for a boolean binop, like `>=`.
boolOp : (op : String) -> (lhs : Doc) -> (rhs : Doc) -> Doc
boolOp o lhs rhs = "(" <+> binOp o lhs rhs <+> "?1:0)"
-- convert an Idris constant to its JS representation
jsConstant : Constant -> String
jsConstant (I i) = show i
jsConstant (I8 i) = show i
jsConstant (I16 i) = show i
jsConstant (I32 i) = show i
jsConstant (I64 i) = show i ++ "n"
jsConstant (BI i) = show i ++ "n"
jsConstant (Str s) = jsString s
jsConstant (Ch c) = jsString $ singleton c
jsConstant (Db f) = show f
jsConstant WorldVal = esName "idrisworld"
jsConstant (B8 i) = show i
jsConstant (B16 i) = show i
jsConstant (B32 i) = show i
jsConstant (B64 i) = show i ++ "n"
jsConstant IntType = "#t"
jsConstant Int8Type = "#t"
jsConstant Int16Type = "#t"
jsConstant Int32Type = "#t"
jsConstant Int64Type = "#t"
jsConstant IntegerType = "#t"
jsConstant Bits8Type = "#t"
jsConstant Bits16Type = "#t"
jsConstant Bits32Type = "#t"
jsConstant Bits64Type = "#t"
jsConstant StringType = "#t"
jsConstant CharType = "#t"
jsConstant DoubleType = "#t"
jsConstant WorldType = "#t"
-- Creates the definition of a binary arithmetic operation.
-- Rounding / truncation behavior is determined from the
-- `IntKind`.
arithOp : Maybe IntKind
-> (sym : String) -- operator symbol (in case we can use the symbolic version)
-> (op : String) -- operation name (for operations on bounded integrals)
-> (lhs : Doc)
-> (rhs : Doc)
-> Doc
arithOp (Just $ Signed $ P n) _ op = boundedIntOp n op
arithOp (Just $ Unsigned n) _ op = boundedUIntOp n op
arithOp _ sym _ = binOp sym
-- use 32bit signed integer for `Int`.
jsIntKind : Constant -> Maybe IntKind
jsIntKind IntType = Just . Signed $ P 32
jsIntKind x = intKind x
-- implementation of all kinds of cast from and / or to integral
-- values.
castInt : Constant -> Constant -> Doc -> Core Doc
castInt from to x =
case ((from, jsIntKind from), (to, jsIntKind to)) of
((CharType,_), (_,Just k)) => truncInt (useBigInt k) k $ jsIntOfChar k x
((StringType,_),(_,Just k)) => truncInt (useBigInt k) k (jsIntOfString k x)
((DoubleType,_),(_,Just k)) => truncInt (useBigInt k) k $ jsIntOfDouble k x
((_,Just k),(CharType,_)) => pure $ jsCharOfInt k x
((_,Just k),(StringType,_)) => pure $ jsAnyToString x
((_,Just k),(DoubleType,_)) => pure $ fromInt k x
((_,Just k1),(_,Just k2)) => intImpl k1 k2
_ => errorConcat $ ["invalid cast: + ",show from," + ' -> ' + ",show to]
where
truncInt : (isBigInt : Bool) -> IntKind -> Doc -> Core Doc
truncInt b (Signed Unlimited) = pure
truncInt b (Signed $ P n) = pure . truncateSigned b n
truncInt b (Unsigned n) = pure . truncateUnsigned b n
shrink : IntKind -> IntKind -> Doc -> Doc
shrink k1 k2 = case (useBigInt k1, useBigInt k2) of
(True, False) => fromBigInt
_ => id
expand : IntKind -> IntKind -> Doc -> Doc
expand k1 k2 = case (useBigInt k1, useBigInt k2) of
(False,True) => toBigInt
_ => id
-- when going from BigInt to Number, we must make
-- sure to first truncate the BigInt, otherwise we
-- might get rounding issues
intImpl : IntKind -> IntKind -> Core Doc
intImpl k1 k2 =
let expanded = expand k1 k2 x
shrunk = shrink k1 k2 <$> truncInt (useBigInt k1) k2 x
in case (k1,k2) of
(_, Signed Unlimited) => pure $ expanded
(Signed m, Signed n) =>
if n >= m then pure expanded else shrunk
(Signed _, Unsigned n) =>
case (useBigInt k1, useBigInt k2) of
(False,True) => truncInt True k2 (toBigInt x)
_ => shrunk
(Unsigned m, Unsigned n) =>
if n >= m then pure expanded else shrunk
-- Only if the precision of the target is greater
-- than the one of the source, there is no need to cast.
(Unsigned m, Signed n) =>
if n > P m then pure expanded else shrunk
-- implementations of primitive functions.
jsOp : {0 arity : Nat} ->
PrimFn arity -> Vect arity Doc -> Core Doc
jsOp (Add ty) [x, y] = pure $ arithOp (jsIntKind ty) "+" "add" x y
jsOp (Sub ty) [x, y] = pure $ arithOp (jsIntKind ty) "-" "sub" x y
jsOp (Mul ty) [x, y] = pure $ arithOp (jsIntKind ty) "*" "mul" x y
jsOp (Div ty) [x, y] = pure $ arithOp (jsIntKind ty) "/" "div" x y
jsOp (Mod ty) [x, y] = pure $ binOp "%" x y
jsOp (Neg ty) [x] = pure $ "(-(" <+> x <+> "))"
jsOp (ShiftL Int32Type) [x, y] = pure $ binOp "<<" x y
jsOp (ShiftL IntType) [x, y] = pure $ binOp "<<" x y
jsOp (ShiftL ty) [x, y] = pure $ arithOp (jsIntKind ty) "<<" "shl" x y
jsOp (ShiftR Int32Type) [x, y] = pure $ binOp ">>" x y
jsOp (ShiftR IntType) [x, y] = pure $ binOp ">>" x y
jsOp (ShiftR ty) [x, y] = pure $ arithOp (jsIntKind ty) ">>" "shr" x y
jsOp (BAnd Bits32Type) [x, y] = pure $ boundedUIntOp 32 "and" x y
jsOp (BOr Bits32Type) [x, y] = pure $ boundedUIntOp 32 "or" x y
jsOp (BXOr Bits32Type) [x, y] = pure $ boundedUIntOp 32 "xor" x y
jsOp (BAnd ty) [x, y] = pure $ binOp "&" x y
jsOp (BOr ty) [x, y] = pure $ binOp "|" x y
jsOp (BXOr ty) [x, y] = pure $ binOp "^" x y
jsOp (LT ty) [x, y] = pure $ boolOp "<" x y
jsOp (LTE ty) [x, y] = pure $ boolOp "<=" x y
jsOp (EQ ty) [x, y] = pure $ boolOp "===" x y
jsOp (GTE ty) [x, y] = pure $ boolOp ">=" x y
jsOp (GT ty) [x, y] = pure $ boolOp ">" x y
jsOp StrLength [x] = pure $ x <+> ".length"
jsOp StrHead [x] = pure $ "(" <+> x <+> ".charAt(0))"
jsOp StrTail [x] = pure $ "(" <+> x <+> ".slice(1))"
jsOp StrIndex [x, y] = pure $ "(" <+> x <+> ".charAt(" <+> y <+> "))"
jsOp StrCons [x, y] = pure $ binOp "+" x y
jsOp StrAppend [x, y] = pure $ binOp "+" x y
jsOp StrReverse [x] = pure $ callFun1 (esName "strReverse") x
jsOp StrSubstr [offset, len, str] =
pure $ callFun (esName "substr") [offset,len,str]
jsOp DoubleExp [x] = pure $ callFun1 "Math.exp" x
jsOp DoubleLog [x] = pure $ callFun1 "Math.log" x
jsOp DoubleSin [x] = pure $ callFun1 "Math.sin" x
jsOp DoubleCos [x] = pure $ callFun1 "Math.cos" x
jsOp DoubleTan [x] = pure $ callFun1 "Math.tan" x
jsOp DoubleASin [x] = pure $ callFun1 "Math.asin" x
jsOp DoubleACos [x] = pure $ callFun1 "Math.acos" x
jsOp DoubleATan [x] = pure $ callFun1 "Math.atan" x
jsOp DoubleSqrt [x] = pure $ callFun1 "Math.sqrt" x
jsOp DoubleFloor [x] = pure $ callFun1 "Math.floor" x
jsOp DoubleCeiling [x] = pure $ callFun1 "Math.ceil" x
jsOp (Cast StringType DoubleType) [x] = pure $ jsNumberOfString x
jsOp (Cast ty StringType) [x] = pure $ jsAnyToString x
jsOp (Cast ty ty2) [x] = castInt ty ty2 x
jsOp BelieveMe [_,_,x] = pure x
jsOp (Crash) [_, msg] = pure $ jsCrashExp msg
--------------------------------------------------------------------------------
-- FFI
--------------------------------------------------------------------------------
-- from an FFI declaration, reads the backend to use.
-- Example: `readCCPart "node:lambda: x => x"` yields
-- `("node","lambda: x => x")`.
readCCPart : String -> (String, String)
readCCPart = breakDrop1 ':'
-- search a an FFI implementation for one of the supported
-- backends.
searchForeign : List String -> List String -> Either (List String) String
searchForeign knownBackends decls =
let pairs = map readCCPart decls
backends = Left $ map fst pairs
in maybe backends (Right. snd) $ find ((`elem` knownBackends) . fst) pairs
-- given a function name and FFI implementation string,
-- generate a toplevel function definition.
makeForeign : {auto d : Ref Ctxt Defs}
-> {auto c : Ref ESs ESSt}
-> (name : Name)
-> (ffDecl : String)
-> Core Doc
makeForeign n x = do
nd <- var <$> getOrRegisterRef n
let (ty, def) = readCCPart x
case ty of
"lambda" => pure . constant nd . paren $ Text def
"support" => do
let (name, lib) = breakDrop1 ',' def
lib_code <- readDataFile ("js/" ++ lib ++ ".js")
addToPreamble lib lib_code
pure . constant nd . Text $ lib ++ "_" ++ name
"stringIterator" =>
case def of
"new" => pure $ constant nd "__prim_stringIteratorNew"
"next" => pure $ constant nd "__prim_stringIteratorNext"
"toString" => pure $ constant nd "__prim_stringIteratorToString"
_ => errorConcat
[ "Invalid string iterator function: ", def, ". "
, "Supported functions are: "
, stringList ["new","next","toString"], "."
]
_ => errorConcat
[ "Invalid foreign type : ", ty, ". "
, "Supported types are: "
, stringList ["lambda", "support", "stringIterator"]
]
-- given a function name and list of FFI declarations, tries
-- to extract a declaration for one of the supported backends.
foreignDecl : {auto d : Ref Ctxt Defs}
-> {auto c : Ref ESs ESSt}
-> Name
-> List String
-> Core Doc
foreignDecl n ccs = do
tys <- ccTypes <$> get ESs
case searchForeign tys ccs of
Right x => makeForeign n x
Left backends =>
errorConcat
[ "No supported backend found in the definition of ", show n, ". "
, "Supported backends: ", stringList tys, ". "
, "Backends in definition: ", stringList backends, "."
]
-- implementations for external primitive functions.
jsPrim : {auto c : Ref ESs ESSt} -> Name -> List Doc -> Core Doc
jsPrim (NS _ (UN "prim__newIORef")) [_,v,_] = pure $ hcat ["({value:", v, "})"]
jsPrim (NS _ (UN "prim__readIORef")) [_,r,_] = pure $ hcat ["(", r, ".value)"]
jsPrim (NS _ (UN "prim__writeIORef")) [_,r,v,_] = pure $ hcat ["(", r, ".value=", v, ")"]
jsPrim (NS _ (UN "prim__newArray")) [_,s,v,_] = pure $ hcat ["(Array(", s, ").fill(", v, "))"]
jsPrim (NS _ (UN "prim__arrayGet")) [_,x,p,_] = pure $ hcat ["(", x, "[", p, "])"]
jsPrim (NS _ (UN "prim__arraySet")) [_,x,p,v,_] = pure $ hcat ["(", x, "[", p, "]=", v, ")"]
jsPrim (NS _ (UN "prim__os")) [] = pure $ Text $ esName "sysos"
jsPrim (NS _ (UN "void")) [_, _] = pure . jsCrashExp $ jsStringDoc "Error: Executed 'void'"
jsPrim (NS _ (UN "prim__void")) [_, _] = pure . jsCrashExp $ jsStringDoc "Error: Executed 'void'"
jsPrim (NS _ (UN "prim__codegen")) [] = do
(cg :: _) <- ccTypes <$> get ESs
| _ => pure "\"javascript\""
pure . Text $ jsString cg
jsPrim x args = throw $ InternalError $ "prim not implemented: " ++ (show x)
--------------------------------------------------------------------------------
-- Codegen
--------------------------------------------------------------------------------
-- checks, whether we accept the given `Exp` as a function argument, or
-- whether it needs to be lifted to the surrounding scope and assigned
-- to a new variable.
isArg : CGMode -> Exp -> Bool
isArg Pretty (ELam _ $ Block _ _) = False
isArg Pretty (ELam _ $ ConSwitch _ _ _ _) = False
isArg Pretty (ELam _ $ ConstSwitch _ _ _ _) = False
isArg Pretty (ELam _ $ Error _) = False
isArg _ _ = True
-- like `isArg` but for function expressions, which we are about
-- to apply
isFun : Exp -> Bool
isFun (ELam _ _) = False
isFun _ = True
-- creates a JS switch statment from the given scrutinee and
-- case blocks (the first entry in a pair is the value belonging
-- to a `case` statement, the second is the body
--
-- Example: switch "foo.a1" [("0","return 2;")] (Just "return 0;")
-- generates the following code:
-- ```javascript
-- switch(foo.a1) {
-- case 0: return 2;
-- default: return 0;
-- }
-- ```
switch : (scrutinee : Doc)
-> (alts : List (Doc,Doc))
-> (def : Maybe Doc)
-> Doc
switch sc alts def =
let stmt = "switch" <+> paren sc <+> SoftSpace
defcase = concatMap (pure . anyCase "default") def
in stmt <+> block (vcat $ map alt alts ++ defcase)
where anyCase : Doc -> Doc -> Doc
anyCase s d =
let b = if isMultiline d then block d else d
in s <+> softColon <+> b
alt : (Doc,Doc) -> Doc
alt (e,d) = anyCase ("case" <++> e) d
-- creates an argument list for a (possibly multi-argument)
-- anonymous function. An empty argument list is treated
-- as a delayed computation (prefixed by `() =>`).
lambdaArgs : List Var -> Doc
lambdaArgs [] = "()" <+> lambdaArrow
lambdaArgs xs = hcat $ (<+> lambdaArrow) . var <$> xs
mutual
-- converts an `Exp` to JS code
exp : {auto c : Ref ESs ESSt} -> Exp -> Core Doc
exp (EMinimal x) = pure $ minimal x
exp (ELam xs (Return $ y@(ECon _ _ _))) =
map (\e => lambdaArgs xs <+> paren e) (exp y)
exp (ELam xs (Return $ y)) = (lambdaArgs xs <+> ) <$> exp y
exp (ELam xs y) = (lambdaArgs xs <+>) . block <$> stmt y
exp (EApp x xs) = do
o <- exp x
args <- traverse exp xs
pure $ app o args
exp (ECon tag ci xs) = applyCon ci tag <$> traverse exp xs
exp (EOp x xs) = traverseVect exp xs >>= jsOp x
exp (EExtPrim x xs) = traverse exp xs >>= jsPrim x
exp (EPrimVal x) = pure . Text $ jsConstant x
exp EErased = pure "undefined"
-- converts a `Stmt e` to JS code.
stmt : {e : _} -> {auto c : Ref ESs ESSt} -> Stmt e -> Core Doc
stmt (Return y) = (\e => "return" <++> e <+> ";") <$> exp y
stmt (Const v x) = constant (var v) <$> exp x
stmt (Declare v s) =
(\d => vcat ["let" <++> var v <+> ";",d]) <$> stmt s
stmt (Assign v x) =
(\d => vcat [hcat [var v,softEq,d,";"], "break;"]) <$> exp x
stmt (ConSwitch r sc alts def) = do
as <- traverse alt alts
d <- traverseOpt stmt def
pure $ switch (minimal sc <+> ".h") as d
where alt : EConAlt r -> Core (Doc,Doc)
alt (MkEConAlt _ RECORD b) = ("undefined",) <$> stmt b
alt (MkEConAlt _ NIL b) = ("0",) <$> stmt b
alt (MkEConAlt _ CONS b) = ("undefined",) <$> stmt b
alt (MkEConAlt _ NOTHING b) = ("0",) <$> stmt b
alt (MkEConAlt _ JUST b) = ("undefined",) <$> stmt b
alt (MkEConAlt t _ b) = (tag2es t,) <$> stmt b
stmt (ConstSwitch r sc alts def) = do
as <- traverse alt alts
d <- traverseOpt stmt def
ex <- exp sc
pure $ switch ex as d
where alt : EConstAlt r -> Core (Doc,Doc)
alt (MkEConstAlt c b) = do d <- stmt b
pure (Text $ jsConstant c, d)
stmt (Error x) = pure $ jsCrashExp (jsStringDoc x) <+> ";"
stmt (Block ss s) = do
docs <- traverse stmt $ forget ss
doc <- stmt s
pure $ vcat (docs ++ [doc])
-- pretty print a piece of code based on the given
-- codegen mode.
printDoc : CGMode -> Doc -> String
printDoc Pretty y = pretty (y <+> LineBreak)
printDoc Compact y = compact y
printDoc Minimal y = compact y
-- generate code for the given toplevel function.
def : {auto c : Ref ESs ESSt} -> Function -> Core String
def (MkFunction n as body) = do
reset
ref <- getOrRegisterRef n
args <- traverse registerLocal as
mde <- mode <$> get ESs
b <- stmt Returns body >>= stmt
pure $ printDoc mde $ function (var ref) (map var args) b
-- generate code for the given foreign function definition
foreign : {auto c : Ref ESs ESSt}
-> {auto d : Ref Ctxt Defs}
-> (Name,FC,NamedDef)
-> Core (List String)
foreign (n, _, MkNmForeign path _ _) = pure . pretty <$> foreignDecl n path
foreign _ = pure []
-- name of the toplevel tail call loop from the
-- preamble.
tailRec : Name
tailRec = UN "__tailRec"
||| Compiles the given `ClosedTerm` for the list of supported
||| backends to JS code.
export
compileToES : Ref Ctxt Defs -> (cg : CG) -> ClosedTerm -> List String -> Core String
compileToES c cg tm ccTypes = do
cdata <- getCompileData False Cases tm
-- read a derive the codegen mode to use from
-- user defined directives for the
directives <- getDirectives cg
let mode = if "minimal" `elem` directives then Minimal
else if "compact" `elem` directives then Compact
else Pretty
-- initialize the state used in the code generator
s <- newRef ESs $ init mode (isArg mode) isFun ccTypes
-- register the toplevel `__tailRec` function to make sure
-- it is not mangled in `Minimal` mode
addRef tailRec (VName tailRec)
-- the list of all toplevel definitions (including the main
-- function)
let allDefs = (mainExpr, EmptyFC, MkNmFun [] $ forget cdata.mainExpr)
:: cdata.namedDefs
-- tail-call optimized set of toplevel functions
defs = TailRec.functions tailRec allDefs
-- pretty printed toplevel function definitions
defDecls <- traverse def defs
-- pretty printed toplevel FFI definitions
foreigns <- concat <$> traverse foreign allDefs
-- lookup the (possibly mangled) name of the main function
mainName <- compact . var <$> getOrRegisterRef mainExpr
-- main function and list of all declarations
let main = "try{"
++ mainName
++ "()}catch(e){if(e instanceof IdrisError){console.log('ERROR: ' + e.message)}else{throw e} }"
allDecls = fastUnlines $ foreigns ++ defDecls
st <- get ESs
-- main preamble containing primops implementations
static_preamble <- readDataFile ("js/support.js")
-- complete preamble, including content from additional
-- support files (if any)
let pre = showSep "\n" $ static_preamble :: (values $ preamble st)
pure $ fastUnlines [pre,allDecls,main]

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module Compiler.ES.Doc
import Data.List
infixl 8 <++>, <?>
public export
data Doc
= Nil
| LineBreak
| SoftSpace -- this will be ignored in compact printing
| Text String
| Nest Nat Doc
| Seq Doc Doc
export
Semigroup Doc where
Nil <+> y = y
x <+> Nil = x
x <+> y = Seq x y
export
Monoid Doc where
neutral = Nil
public export %inline
shown : Show a => a -> Doc
shown a = Text (show a)
export
FromString Doc where
fromString = Text
export
isMultiline : Doc -> Bool
isMultiline [] = False
isMultiline LineBreak = True
isMultiline SoftSpace = False
isMultiline (Text x) = False
isMultiline (Nest k x) = isMultiline x
isMultiline (Seq x y) = isMultiline x || isMultiline y
export
(<++>) : Doc -> Doc -> Doc
a <++> b = a <+> " " <+> b
export
vcat : List Doc -> Doc
vcat = concat . intersperse LineBreak
export
hcat : List Doc -> Doc
hcat = concat
export
hsep : List Doc -> Doc
hsep = concat . intersperse " "
export
block : Doc -> Doc
block b = concat ["{", Nest 1 (LineBreak <+> b), LineBreak, "}"]
export
paren : Doc -> Doc
paren d = "(" <+> d <+> ")"
export
lambdaArrow : Doc
lambdaArrow = SoftSpace <+> "=>" <+> SoftSpace
export
softComma : Doc
softComma = "," <+> SoftSpace
export
softColon : Doc
softColon = ":" <+> SoftSpace
export
softEq : Doc
softEq = SoftSpace <+> "=" <+> SoftSpace
export
compact : Doc -> String
compact = fastConcat . go
where go : Doc -> List String
go Nil = []
go LineBreak = []
go SoftSpace = []
go (Text x) = [x]
go (Nest _ y) = go y
go (Seq x y) = go x ++ go y
export
pretty : Doc -> String
pretty = fastConcat . go ""
where nSpaces : Nat -> String
nSpaces n = fastPack $ replicate n ' '
go : (spaces : String) -> Doc -> List String
go _ Nil = []
go s LineBreak = ["\n",s]
go _ SoftSpace = [" "]
go _ (Text x) = [x]
go s (Nest x y) = go (s ++ nSpaces x) y
go s (Seq x y) = go s x ++ go s y

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src/Compiler/ES/ES.idr
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@ -1,577 +0,0 @@
module Compiler.ES.ES
import Compiler.Common
import Compiler.ES.Imperative
import Libraries.Utils.Hex
import Data.List1
import Data.String
import Libraries.Data.SortedMap
import Libraries.Data.String.Extra
import Core.Directory
%default covering
%hide Data.String.lines
%hide Data.String.lines'
%hide Data.String.unlines
%hide Data.String.unlines'
data ESs : Type where
record ESSt where
constructor MkESSt
preamble : SortedMap String String
ccTypes : List String
jsString : String -> String
jsString s = "'" ++ (concatMap okchar (unpack s)) ++ "'"
where
okchar : Char -> String
okchar c = if (c >= ' ') && (c /= '\\')
&& (c /= '"') && (c /= '\'') && (c <= '~')
then cast c
else case c of
'\0' => "\\0"
'\'' => "\\'"
'"' => "\\\""
'\r' => "\\r"
'\n' => "\\n"
other => "\\u{" ++ asHex (cast {to=Int} c) ++ "}"
esName : String -> String
esName x = "__esPrim_" ++ x
addToPreamble : {auto c : Ref ESs ESSt} ->
String -> String -> String -> Core String
addToPreamble name newName def =
do
s <- get ESs
case lookup name (preamble s) of
Nothing =>
do
put ESs (record { preamble = insert name def (preamble s) } s)
pure newName
Just x =>
if x /= def
then throw $ InternalError $ "two incompatible definitions for "
++ name ++ "<|" ++ x ++"|> <|"++ def ++ "|>"
else pure newName
addConstToPreamble : {auto c : Ref ESs ESSt} -> String -> String -> Core String
addConstToPreamble name def =
do
let newName = esName name
let v = "const " ++ newName ++ " = (" ++ def ++ ");"
addToPreamble name newName v
addSupportToPreamble : {auto c : Ref ESs ESSt} -> String -> String -> Core String
addSupportToPreamble name code =
addToPreamble name name code
addStringIteratorToPreamble : {auto c : Ref ESs ESSt} -> Core String
addStringIteratorToPreamble =
do
let defs = unlines $
[ "function __prim_stringIteratorNew(str) {"
, " return 0;"
, "}"
, "function __prim_stringIteratorToString(_, str, it, f) {"
, " return f(str.slice(it));"
, "}"
, "function __prim_stringIteratorNext(str, it) {"
, " if (it >= str.length)"
, " return {h: 0};"
, " else"
, " return {h: 1, a1: str.charAt(it), a2: it + 1};"
, "}"
]
let name = "stringIterator"
let newName = esName name
addToPreamble name newName defs
jsIdent : String -> String
jsIdent s = concatMap okchar (unpack s)
where
okchar : Char -> String
okchar '_' = "_"
okchar c = if isAlphaNum c
then cast c
else "$" ++ (asHex (cast {to=Int} c))
keywordSafe : String -> String
keywordSafe "var" = "var_"
keywordSafe s = s
jsName : Name -> String
jsName (NS ns n) = jsIdent (showNSWithSep "_" ns) ++ "_" ++ jsName n
jsName (UN n) = keywordSafe $ jsIdent n
jsName (MN n i) = jsIdent n ++ "_" ++ show i
jsName (PV n d) = "pat__" ++ jsName n
jsName (DN _ n) = jsName n
jsName (RF n) = "rf__" ++ jsIdent n
jsName (Nested (i, x) n) = "n__" ++ show i ++ "_" ++ show x ++ "_" ++ jsName n
jsName (CaseBlock x y) = "case__" ++ jsIdent x ++ "_" ++ show y
jsName (WithBlock x y) = "with__" ++ jsIdent x ++ "_" ++ show y
jsName (Resolved i) = "fn__" ++ show i
jsCrashExp : {auto c : Ref ESs ESSt} -> String -> Core String
jsCrashExp message =
do
n <- addConstToPreamble "crashExp" "x=>{throw new IdrisError(x)}"
pure $ n ++ "("++ message ++ ")"
toBigInt : String -> String
toBigInt e = "BigInt(" ++ e ++ ")"
fromBigInt : String -> String
fromBigInt e = "Number(" ++ e ++ ")"
useBigInt' : Int -> Bool
useBigInt' = (> 32)
useBigInt : IntKind -> Bool
useBigInt (Signed $ P x) = useBigInt' x
useBigInt (Signed Unlimited) = True
useBigInt (Unsigned x) = useBigInt' x
jsBigIntOfString : {auto c : Ref ESs ESSt} -> String -> Core String
jsBigIntOfString x =
do
n <- addConstToPreamble "bigIntOfString" "s=>{const idx = s.indexOf('.'); return idx === -1 ? BigInt(s) : BigInt(s.slice(0, idx));}"
pure $ n ++ "(" ++ x ++ ")"
jsNumberOfString : {auto c : Ref ESs ESSt} -> String -> Core String
jsNumberOfString x = pure $ "parseFloat(" ++ x ++ ")"
jsIntOfString : {auto c : Ref ESs ESSt} -> IntKind -> String -> Core String
jsIntOfString k = if useBigInt k then jsBigIntOfString else jsNumberOfString
nSpaces : Nat -> String
nSpaces n = pack $ List.replicate n ' '
binOp : String -> String -> String -> String
binOp o lhs rhs = "(" ++ lhs ++ " " ++ o ++ " " ++ rhs ++ ")"
adjInt : Int -> String -> String
adjInt bits = if useBigInt' bits then toBigInt else id
toInt : IntKind -> String -> String
toInt k = if useBigInt k then toBigInt else id
fromInt : IntKind -> String -> String
fromInt k = if useBigInt k then fromBigInt else id
jsIntOfChar : IntKind -> String -> String
jsIntOfChar k s = toInt k $ s ++ ".codePointAt(0)"
jsIntOfDouble : IntKind -> String -> String
jsIntOfDouble k s = toInt k $ "Math.trunc(" ++ s ++ ")"
jsAnyToString : String -> String
jsAnyToString s = "(''+" ++ s ++ ")"
-- Valid unicode code poing range is [0,1114111], therefore,
-- we calculate the remainder modulo 1114112 (= 17 * 2^16).
jsCharOfInt : {auto c : Ref ESs ESSt} -> IntKind -> String -> Core String
jsCharOfInt k e =
do fn <- addConstToPreamble
("truncToChar")
("x=>(x >= 0 && x <= 55295) || (x >= 57344 && x <= 1114111) ? x : 0")
pure $ "String.fromCodePoint(" ++ fn ++ "(" ++ fromInt k e ++ "))"
makeIntBound : {auto c : Ref ESs ESSt} ->
(isBigInt : Bool) -> Int -> Core String
makeIntBound isBigInt bits =
let f = if isBigInt then toBigInt else id
name = if isBigInt then "bigint_bound_" else "int_bound_"
in addConstToPreamble (name ++ show bits) (f "2" ++ " ** "++ f (show bits))
boundedInt : {auto c : Ref ESs ESSt}
-> (isBigInt : Bool)
-> Int
-> String
-> Core String
boundedInt useBigInt bits e =
let bs = show bits
f = if useBigInt then toBigInt else id
name = if useBigInt then "truncToBigInt" else "truncToInt"
in do max <- makeIntBound useBigInt bits
half <- makeIntBound useBigInt (bits - 1)
fn <- addConstToPreamble
(name ++ show bits)
( concat {t = List}
[ "x=>{ const v = x<",f "0","?x%",max,"+",max,":x%",max,";"
, "return v>=",half,"?","v-",max,":v}"
])
pure $ fn ++ "(" ++ e ++ ")"
boundedUInt : {auto c : Ref ESs ESSt} ->
(isBigInt : Bool) -> Int -> String -> Core String
boundedUInt isBigInt bits e =
let name = if isBigInt then "truncToUBigInt" else "truncToUInt"
in do n <- makeIntBound isBigInt bits
fn <- addConstToPreamble
(name ++ show bits)
("x=>{const m = x%" ++ n ++ ";return m>=0?m:m+" ++ n ++ "}")
pure $ fn ++ "(" ++ e ++ ")"
boundedIntOp : {auto c : Ref ESs ESSt} ->
Int -> String -> String -> String -> Core String
boundedIntOp bits o lhs rhs =
boundedInt (useBigInt' bits) bits (binOp o lhs rhs)
boundedUIntOp : {auto c : Ref ESs ESSt} ->
Int -> String -> String -> String -> Core String
boundedUIntOp bits o lhs rhs =
boundedUInt (useBigInt' bits) bits (binOp o lhs rhs)
boolOp : String -> String -> String -> String
boolOp o lhs rhs = "(" ++ binOp o lhs rhs ++ " ? BigInt(1) : BigInt(0))"
jsConstant : {auto c : Ref ESs ESSt} -> Constant -> Core String
jsConstant (I i) = pure $ show i ++ "n"
jsConstant (I8 i) = pure $ show i
jsConstant (I16 i) = pure $ show i
jsConstant (I32 i) = pure $ show i
jsConstant (I64 i) = pure $ show i ++ "n"
jsConstant (BI i) = pure $ show i ++ "n"
jsConstant (Str s) = pure $ jsString s
jsConstant (Ch c) = pure $ jsString $ Data.String.singleton c
jsConstant (Db f) = pure $ show f
jsConstant WorldVal = addConstToPreamble "idrisworld" "Symbol('idrisworld')";
jsConstant (B8 i) = pure $ show i
jsConstant (B16 i) = pure $ show i
jsConstant (B32 i) = pure $ show i
jsConstant (B64 i) = pure $ show i ++ "n"
jsConstant ty = throw (InternalError $ "Unsuported constant " ++ show ty)
-- For multiplication of 32bit integers (signed or unsigned),
-- we go via BigInt and back, otherwise the calculation is
-- susceptible to rounding error, since we might exceed `MAX_SAFE_INTEGER`.
mult : {auto c : Ref ESs ESSt}
-> Maybe IntKind
-> (x : String)
-> (y : String)
-> Core String
mult (Just $ Signed $ P 32) x y =
fromBigInt <$> boundedInt True 32 (binOp "*" (toBigInt x) (toBigInt y))
mult (Just $ Unsigned 32) x y =
fromBigInt <$> boundedUInt True 32 (binOp "*" (toBigInt x) (toBigInt y))
mult (Just $ Signed $ P n) x y = boundedIntOp n "*" x y
mult (Just $ Unsigned n) x y = boundedUIntOp n "*" x y
mult _ x y = pure $ binOp "*" x y
div : {auto c : Ref ESs ESSt}
-> Maybe IntKind
-> (x : String)
-> (y : String)
-> Core String
div (Just $ Signed $ Unlimited) x y = pure $ binOp "/" x y
div (Just $ k@(Signed $ P n)) x y =
if useBigInt k then boundedIntOp n "/" x y
else boundedInt False n (jsIntOfDouble k (x ++ " / " ++ y))
div (Just $ k@(Unsigned n)) x y =
if useBigInt k then pure $ binOp "/" x y
else pure $ jsIntOfDouble k (x ++ " / " ++ y)
div Nothing x y = pure $ binOp "/" x y
-- Creates the definition of a binary arithmetic operation.
-- Rounding / truncation behavior is determined from the
-- `IntKind`.
arithOp : {auto c : Ref ESs ESSt}
-> Maybe IntKind
-> (op : String)
-> (x : String)
-> (y : String)
-> Core String
arithOp (Just $ Signed $ P n) op x y = boundedIntOp n op x y
arithOp (Just $ Unsigned n) op x y = boundedUIntOp n op x y
arithOp _ op x y = pure $ binOp op x y
-- Same as `arithOp` but for bitwise operations that might
-- go out of the valid range.
-- Note: Bitwise operations on `Number` work correctly for
-- 32bit *signed* integers. For `Bits32` we therefore go via `BigInt`
-- in order not having to deal with all kinds of negativity nastiness.
bitOp : {auto c : Ref ESs ESSt}
-> Maybe IntKind
-> (op : String)
-> (x : String)
-> (y : String)
-> Core String
bitOp (Just $ Signed $ P n) op x y = boundedIntOp n op x y
bitOp (Just $ Unsigned 32) op x y =
fromBigInt <$> boundedUInt True 32 (binOp op (toBigInt x) (toBigInt y))
bitOp (Just $ Unsigned n) op x y = boundedUIntOp n op x y
bitOp _ op x y = pure $ binOp op x y
constPrimitives : {auto c : Ref ESs ESSt} -> ConstantPrimitives
constPrimitives = MkConstantPrimitives {
charToInt = \k => truncInt (useBigInt k) k . jsIntOfChar k
, intToChar = jsCharOfInt
, stringToInt = \k,s => jsIntOfString k s >>= truncInt (useBigInt k) k
, intToString = \_ => pure . jsAnyToString
, doubleToInt = \k => truncInt (useBigInt k) k . jsIntOfDouble k
, intToDouble = \k => pure . fromInt k
, intToInt = intImpl
}
where truncInt : (isBigInt : Bool) -> IntKind -> String -> Core String
truncInt b (Signed Unlimited) = pure
truncInt b (Signed $ P n) = boundedInt b n
truncInt b (Unsigned n) = boundedUInt b n
shrink : IntKind -> IntKind -> String -> String
shrink k1 k2 = case (useBigInt k1, useBigInt k2) of
(True, False) => fromBigInt
_ => id
expand : IntKind -> IntKind -> String -> String
expand k1 k2 = case (useBigInt k1, useBigInt k2) of
(False,True) => toBigInt
_ => id
-- when going from BigInt to Number, we must make
-- sure to first truncate the BigInt, otherwise we
-- might get rounding issues
intImpl : IntKind -> IntKind -> String -> Core String
intImpl k1 k2 s =
let expanded = expand k1 k2 s
shrunk = shrink k1 k2 <$> truncInt (useBigInt k1) k2 s
in case (k1,k2) of
(_, Signed Unlimited) => pure $ expanded
(Signed m, Signed n) =>
if n >= m then pure expanded else shrunk
(Signed _, Unsigned n) =>
case (useBigInt k1, useBigInt k2) of
(False,True) => truncInt True k2 (toBigInt s)
_ => shrunk
(Unsigned m, Unsigned n) =>
if n >= m then pure expanded else shrunk
-- Only if the precision of the target is greater
-- than the one of the source, there is no need to cast.
(Unsigned m, Signed n) =>
if n > P m then pure expanded else shrunk
jsOp : {0 arity : Nat} -> {auto c : Ref ESs ESSt} ->
PrimFn arity -> Vect arity String -> Core String
jsOp (Add ty) [x, y] = arithOp (intKind ty) "+" x y
jsOp (Sub ty) [x, y] = arithOp (intKind ty) "-" x y
jsOp (Mul ty) [x, y] = mult (intKind ty) x y
jsOp (Div ty) [x, y] = div (intKind ty) x y
jsOp (Mod ty) [x, y] = arithOp (intKind ty) "%" x y
jsOp (Neg ty) [x] = pure $ "(-(" ++ x ++ "))"
jsOp (ShiftL Int32Type) [x, y] = pure $ binOp "<<" x y
jsOp (ShiftL ty) [x, y] = bitOp (intKind ty) "<<" x y
jsOp (ShiftR Int32Type) [x, y] = pure $ binOp ">>" x y
jsOp (ShiftR ty) [x, y] = bitOp (intKind ty) ">>" x y
jsOp (BAnd Bits32Type) [x, y] = pure . fromBigInt $ binOp "&" (toBigInt x) (toBigInt y)
jsOp (BOr Bits32Type) [x, y] = pure . fromBigInt $ binOp "|" (toBigInt x) (toBigInt y)
jsOp (BXOr Bits32Type) [x, y] = pure . fromBigInt $ binOp "^" (toBigInt x) (toBigInt y)
jsOp (BAnd ty) [x, y] = pure $ binOp "&" x y
jsOp (BOr ty) [x, y] = pure $ binOp "|" x y
jsOp (BXOr ty) [x, y] = pure $ binOp "^" x y
jsOp (LT ty) [x, y] = pure $ boolOp "<" x y
jsOp (LTE ty) [x, y] = pure $ boolOp "<=" x y
jsOp (EQ ty) [x, y] = pure $ boolOp "===" x y
jsOp (GTE ty) [x, y] = pure $ boolOp ">=" x y
jsOp (GT ty) [x, y] = pure $ boolOp ">" x y
jsOp StrLength [x] = pure $ toBigInt $ x ++ ".length"
jsOp StrHead [x] = pure $ "(" ++ x ++ ".charAt(0))"
jsOp StrTail [x] = pure $ "(" ++ x ++ ".slice(1))"
jsOp StrIndex [x, y] = pure $ "(" ++ x ++ ".charAt(" ++ fromBigInt y ++ "))"
jsOp StrCons [x, y] = pure $ binOp "+" x y
jsOp StrAppend [x, y] = pure $ binOp "+" x y
jsOp StrReverse [x] =
do
n <- addConstToPreamble "strReverse" "x => x.split('').reverse().join('')"
pure $ n ++ "(" ++ x ++ ")"
jsOp StrSubstr [offset, length, str] =
pure $ str ++ ".slice(" ++ fromBigInt offset ++ ", " ++ fromBigInt offset ++ " + " ++ fromBigInt length ++ ")"
jsOp DoubleExp [x] = pure $ "Math.exp(" ++ x ++ ")"
jsOp DoubleLog [x] = pure $ "Math.log(" ++ x ++ ")"
jsOp DoubleSin [x] = pure $ "Math.sin(" ++ x ++ ")"
jsOp DoubleCos [x] = pure $ "Math.cos(" ++ x ++ ")"
jsOp DoubleTan [x] = pure $ "Math.tan(" ++ x ++ ")"
jsOp DoubleASin [x] = pure $ "Math.asin(" ++ x ++ ")"
jsOp DoubleACos [x] = pure $ "Math.acos(" ++ x ++ ")"
jsOp DoubleATan [x] = pure $ "Math.atan(" ++ x ++ ")"
jsOp DoubleSqrt [x] = pure $ "Math.sqrt(" ++ x ++ ")"
jsOp DoubleFloor [x] = pure $ "Math.floor(" ++ x ++ ")"
jsOp DoubleCeiling [x] = pure $ "Math.ceil(" ++ x ++ ")"
jsOp (Cast StringType DoubleType) [x] = jsNumberOfString x
jsOp (Cast ty StringType) [x] = pure $ jsAnyToString x
jsOp (Cast ty ty2) [x] = castInt constPrimitives ty ty2 x
jsOp BelieveMe [_,_,x] = pure x
jsOp (Crash) [_, msg] = jsCrashExp msg
readCCPart : String -> (String, String)
readCCPart x =
let (cc, def) = break (== ':') x
in (cc, drop 1 def)
searchForeign : List String -> List String -> Maybe String
searchForeign prefixes [] = Nothing
searchForeign prefixes (x::xs) =
let (cc, def) = readCCPart x
in if cc `elem` prefixes then Just def
else searchForeign prefixes xs
makeForeign : {auto d : Ref Ctxt Defs} -> {auto c : Ref ESs ESSt} -> Name -> String -> Core String
makeForeign n x =
do
let (ty, def) = readCCPart x
case ty of
"lambda" => pure $ "const " ++ jsName n ++ " = (" ++ def ++ ")\n"
"support" =>
do
let (name, lib_) = break (== ',') def
let lib = drop 1 lib_
lib_code <- readDataFile ("js/" ++ lib ++ ".js")
ignore $ addSupportToPreamble lib lib_code
pure $ "const " ++ jsName n ++ " = " ++ lib ++ "_" ++ name ++ "\n"
"stringIterator" =>
do
ignore addStringIteratorToPreamble
case def of
"new" => pure $ "const " ++ jsName n ++ " = __prim_stringIteratorNew;\n"
"next" => pure $ "const " ++ jsName n ++ " = __prim_stringIteratorNext;\n"
"toString" => pure $ "const " ++ jsName n ++ " = __prim_stringIteratorToString;\n"
_ => throw (InternalError $ "invalid string iterator function: " ++ def ++ ", supported functions are \"new\", \"next\", \"toString\"")
_ => throw (InternalError $ "invalid foreign type : " ++ ty ++ ", supported types are \"lambda\", \"support\"")
foreignDecl : {auto d : Ref Ctxt Defs} -> {auto c : Ref ESs ESSt} -> Name -> List String -> Core String
foreignDecl n ccs =
do
s <- get ESs
case searchForeign (ccTypes s) ccs of
Just x => makeForeign n x
Nothing => throw (InternalError $ "No node or javascript definition found for " ++ show n ++ " in " ++ show ccs)
jsPrim : {auto c : Ref ESs ESSt} -> Name -> List String -> Core String
jsPrim (NS _ (UN "prim__newIORef")) [_,v,_] = pure $ "({value: "++ v ++"})"
jsPrim (NS _ (UN "prim__readIORef")) [_,r,_] = pure $ "(" ++ r ++ ".value)"
jsPrim (NS _ (UN "prim__writeIORef")) [_,r,v,_] = pure $ "(" ++ r ++ ".value=" ++ v ++ ")"
jsPrim (NS _ (UN "prim__newArray")) [_,s,v,_] = pure $ "(Array(Number(" ++ s ++ ")).fill(" ++ v ++ "))"
jsPrim (NS _ (UN "prim__arrayGet")) [_,x,p,_] = pure $ "(" ++ x ++ "[" ++ p ++ "])"
jsPrim (NS _ (UN "prim__arraySet")) [_,x,p,v,_] = pure $ "(" ++ x ++ "[" ++ p ++ "] = " ++ v ++ ")"
jsPrim (NS _ (UN "prim__os")) [] =
do
let oscalc = "(o => o === 'linux'?'unix':o==='win32'?'windows':o)"
sysos <- addConstToPreamble "sysos" (oscalc ++ "(require('os').platform())")
pure sysos
jsPrim (NS _ (UN "void")) [_, _] = jsCrashExp $ jsString $ "Error: Executed 'void'" -- DEPRECATED. TODO: remove when bootstrap has been updated
jsPrim (NS _ (UN "prim__void")) [_, _] = jsCrashExp $ jsString $ "Error: Executed 'void'"
jsPrim (NS _ (UN "prim__codegen")) [] = do
(cg :: _) <- ccTypes <$> get ESs
| _ => pure "\"javascript\""
pure $ jsString cg
jsPrim x args = throw $ InternalError $ "prim not implemented: " ++ (show x)
tag2es : Either Int String -> String
tag2es (Left x) = show x
tag2es (Right x) = jsString x
mutual
impExp2es : {auto d : Ref Ctxt Defs} -> {auto c : Ref ESs ESSt} -> ImperativeExp -> Core String
impExp2es (IEVar n) =
pure $ jsName n
impExp2es (IELambda args body) =
pure $ "(" ++ showSep ", " (map jsName args) ++ ") => {" ++ !(imperative2es 0 body) ++ "}"
impExp2es (IEApp f args) =
pure $ !(impExp2es f) ++ "(" ++ showSep ", " !(traverse impExp2es args) ++ ")"
impExp2es (IEConstant c) =
jsConstant c
impExp2es (IEPrimFn f args) =
jsOp f !(traverseVect impExp2es args)
impExp2es (IEPrimFnExt n args) =
jsPrim n !(traverse impExp2es args)
impExp2es (IEConstructorHead e) =
pure $ !(impExp2es e) ++ ".h"
impExp2es (IEConstructorTag x) =
pure $ tag2es x
impExp2es (IEConstructorArg i e) =
pure $ !(impExp2es e) ++ ".a" ++ show i
impExp2es (IEConstructor h args) =
let argPairs = zipWith (\i,a => "a" ++ show i ++ ": " ++ a ) [1..length args] !(traverse impExp2es args)
in pure $ "({" ++ showSep ", " (("h:" ++ tag2es h)::argPairs) ++ "})"
impExp2es (IEDelay e) =
pure $ "(()=>" ++ !(impExp2es e) ++ ")"
impExp2es (IEForce e) =
pure $ !(impExp2es e) ++ "()"
impExp2es IENull =
pure "undefined"
imperative2es : {auto d : Ref Ctxt Defs} -> {auto c : Ref ESs ESSt} -> Nat -> ImperativeStatement -> Core String
imperative2es indent DoNothing =
pure ""
imperative2es indent (SeqStatement x y) =
pure $ !(imperative2es indent x) ++ "\n" ++ !(imperative2es indent y)
imperative2es indent (FunDecl fc n args body) =
pure $ nSpaces indent ++ "function " ++ jsName n ++ "(" ++ showSep ", " (map jsName args) ++ "){//"++ show fc ++"\n" ++
!(imperative2es (indent+1) body) ++ "\n" ++ nSpaces indent ++ "}\n"
imperative2es indent (ForeignDecl fc n path args ret) =
pure $ !(foreignDecl n path) ++ "\n"
imperative2es indent (ReturnStatement x) =
pure $ nSpaces indent ++ "return " ++ !(impExp2es x) ++ ";"
imperative2es indent (SwitchStatement e alts def) =
do
def <- case def of
Nothing => pure ""
Just x => pure $ nSpaces (indent+1) ++ "default:\n" ++ !(imperative2es (indent+2) x)
let sw = nSpaces indent ++ "switch(" ++ !(impExp2es e) ++ "){\n"
let alts = concat !(traverse (alt2es (indent+1)) alts)
pure $ sw ++ alts ++ def ++ "\n" ++ nSpaces indent ++ "}"
imperative2es indent (LetDecl x v) =
case v of
Nothing => pure $ nSpaces indent ++ "let " ++ jsName x ++ ";"
Just v_ => pure $ nSpaces indent ++ "let " ++ jsName x ++ " = " ++ !(impExp2es v_) ++ ";"
imperative2es indent (ConstDecl x v) =
pure $ nSpaces indent ++ "const " ++ jsName x ++ " = " ++ !(impExp2es v) ++ ";"
imperative2es indent (MutateStatement x v) =
pure $ nSpaces indent ++ jsName x ++ " = " ++ !(impExp2es v) ++ ";"
imperative2es indent (ErrorStatement msg) =
pure $ nSpaces indent ++ "throw new Error("++ jsString msg ++");"
imperative2es indent (EvalExpStatement e) =
pure $ nSpaces indent ++ !(impExp2es e) ++ ";"
imperative2es indent (CommentStatement x) =
pure $ "\n/*" ++ x ++ "*/\n"
imperative2es indent (ForEverLoop x) =
pure $ nSpaces indent ++ "while(true){\n" ++ !(imperative2es (indent+1) x) ++ "\n" ++ nSpaces indent ++ "}"
alt2es : {auto d : Ref Ctxt Defs} -> {auto c : Ref ESs ESSt} -> Nat -> (ImperativeExp, ImperativeStatement) -> Core String
alt2es indent (e, b) = pure $ nSpaces indent ++ "case " ++ !(impExp2es e) ++ ": {\n" ++
!(imperative2es (indent+1) b) ++ "\n" ++ nSpaces (indent+1) ++ "break; }\n"
static_preamble : List String
static_preamble =
[ "class IdrisError extends Error { }"
, "function __prim_js2idris_array(x){if(x.length ===0){return {h:0}}else{return {h:1,a1:x[0],a2: __prim_js2idris_array(x.slice(1))}}}"
, "function __prim_idris2js_array(x){const result = Array();while (x.h != 0) {result.push(x.a1); x = x.a2;}return result;}"
]
export
compileToES : Ref Ctxt Defs -> ClosedTerm -> List String -> Core String
compileToES c tm ccTypes =
do
(impDefs, impMain) <- compileToImperative c tm
s <- newRef ESs (MkESSt empty ccTypes)
defs <- imperative2es 0 impDefs
main_ <- imperative2es 0 impMain
let main = "try{" ++ main_ ++ "}catch(e){if(e instanceof IdrisError){console.log('ERROR: ' + e.message)}else{throw e} }"
st <- get ESs
let pre = showSep "\n" $ static_preamble ++ (SortedMap.values $ preamble st)
pure $ pre ++ "\n\n" ++ defs ++ main

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@ -1,423 +0,0 @@
||| This module is responsible for compiling an
||| Idris2 `ClosedTerm` to a pair of `ImperativeStatement`s,
||| one of which corresponds to a sequence of toplevel
||| definitions, the other being the program's main entry
||| point.
module Compiler.ES.Imperative
import public Compiler.ES.ImperativeAst
import Data.List
import Compiler.Common
import Compiler.CompileExpr
import public Core.Context
import Compiler.ES.TailRec
%default covering
mutual
isNameUsed : Name -> NamedCExp -> Bool
isNameUsed name (NmLocal fc n) = n == name
isNameUsed name (NmRef fc n) = n == name
isNameUsed name (NmLam fc n e) = isNameUsed name e
isNameUsed name (NmApp fc x args)
= isNameUsed name x || any (isNameUsed name) args
isNameUsed name (NmPrimVal fc c) = False
isNameUsed name (NmOp fc op args) = any (isNameUsed name) args
isNameUsed name (NmConCase fc sc alts def)
= isNameUsed name sc
|| any (isNameUsedConAlt name) alts
|| maybe False (isNameUsed name) def
isNameUsed name (NmConstCase fc sc alts def)
= isNameUsed name sc
|| any (isNameUsedConstAlt name) alts
|| maybe False (isNameUsed name) def
isNameUsed name (NmExtPrim fc p args) = any (isNameUsed name) args
isNameUsed name (NmCon fc x _ t args) = any (isNameUsed name) args
isNameUsed name (NmDelay fc _ t) = isNameUsed name t
isNameUsed name (NmForce fc _ t) = isNameUsed name t
isNameUsed name (NmLet fc x val sc) =
if x == name then isNameUsed name val
else isNameUsed name val || isNameUsed name sc
isNameUsed name (NmErased fc) = False
isNameUsed name (NmCrash fc msg) = False
isNameUsedConAlt : Name -> NamedConAlt -> Bool
isNameUsedConAlt name (MkNConAlt n _ t args exp) = isNameUsed name exp
isNameUsedConstAlt : Name -> NamedConstAlt -> Bool
isNameUsedConstAlt name (MkNConstAlt c exp) = isNameUsed name exp
data Imps : Type where
record ImpSt where
constructor MkImpSt
nextName : Int
genName : {auto c : Ref Imps ImpSt} -> Core Name
genName =
do s <- get Imps
let i = nextName s
put Imps (record { nextName = i + 1 } s)
pure $ MN "imp_gen" i
-- Processing an Idris2 expression results in
-- an `ImperativeStatement` (since this is a monoid,
-- this might actually be many statements) of utility
-- functions and intermediary vars and results, and
-- a final imperative expression, calculating a result
-- from the related statement(s). These
-- are then converted to JS code.
--
-- The boolean flag indicates, whether the two parts
-- should be returned as a pair for further
-- processing, or should be converted
-- to a single statement (in which case, the final
-- expression is converted to a `return` statement).
ImperativeResult : (toReturn : Bool) -> Type
ImperativeResult True = ImperativeStatement
ImperativeResult False = (ImperativeStatement, ImperativeExp)
-- when invoking `impExp`, in some cases we always
-- generate a pair (statements plus related final
-- expression). In such a case, this function converts
-- the statement to the correct result type as indicated
-- by `toReturn`.
pairToReturn : (toReturn : Bool)
-> (ImperativeStatement, ImperativeExp)
-> (ImperativeResult toReturn)
pairToReturn False (s, e) = (s, e)
pairToReturn True (s, e) = s <+> ReturnStatement e
-- when invoking `impExp`, in some cases we
-- generate just an expression.
-- In such a case, this function converts
-- the expression to the correct result type as indicated
-- by `toReturn`.
expToReturn : (toReturn : Bool)
-> ImperativeExp
-> (ImperativeResult toReturn)
expToReturn False e = (DoNothing, e)
expToReturn True e = ReturnStatement e
impTag : Name -> Maybe Int -> Either Int String
impTag n Nothing = Right $ show n
impTag n (Just i) = Left i
-- memoize an intermediary result in a `let` binding.
-- doesn't do anything if `exp` is a variable, constant
-- or undefined.
memoExp : {auto c : Ref Imps ImpSt}
-> (exp : ImperativeExp)
-> Core (ImperativeStatement, ImperativeExp)
memoExp e@(IEVar _) = pure (neutral, e)
memoExp e@(IEConstant _) = pure (neutral, e)
memoExp IENull = pure (neutral, IENull)
memoExp e = map (\n =>(LetDecl n $ Just e, IEVar n)) genName
mutual
-- converts primOps arguments to a set of
-- statements plus a corresponding vect of expressions
impVectExp : {auto c : Ref Imps ImpSt}
-> Vect n NamedCExp
-> Core (ImperativeStatement, Vect n ImperativeExp)
impVectExp args =
do a <- traverseVect (impExp False) args
pure (concatMap fst a, map snd a)
-- converts function arguments to a set of
-- statements plus a corresponding list of expressions
impListExp : {auto c : Ref Imps ImpSt}
-> List NamedCExp
-> Core (ImperativeStatement, List ImperativeExp)
impListExp args =
do a <- traverse (impExp False) args
pure (concatMap fst a, map snd a)
impExp : {auto c : Ref Imps ImpSt}
-> (toReturn : Bool)
-> NamedCExp
-> Core (ImperativeResult toReturn)
-- convert local names to vars
impExp toReturn (NmLocal fc n) =
pure . expToReturn toReturn $ IEVar n
impExp toReturn (NmRef fc n) =
pure . expToReturn toReturn $ IEVar n
-- TODO: right now, nested lambda expressions are curried
-- (or are they?).
-- It might be more efficient (and more readable!) to uncurry
-- these, at least in the most simple cases.
impExp toReturn (NmLam fc n e) =
pure . expToReturn toReturn $ IELambda [n] !(impExp True e)
-- Function application: Statements for the
-- implementation of the function and the arguments are
-- generated separately and concatenated.
impExp toReturn (NmApp fc x args) =
do (s1, f) <- impExp False x
(s2, a) <- impListExp args
pure $ pairToReturn toReturn (s1 <+> s2, IEApp f a)
-- primitive values
impExp toReturn (NmPrimVal fc c) =
pure . expToReturn toReturn $ IEConstant c
-- primitive operations
impExp toReturn (NmOp fc op args) =
do (s, a) <- impVectExp args
pure $ pairToReturn toReturn (s, IEPrimFn op a)
-- a pattern match on a constructor
-- is converted to a switch statement in JS.
--
-- TODO: We should treat record constructors
-- separately, to avoid the unnecessary
-- switch
--
-- ```
-- s1
-- let res;
-- switch(exp.h) {
-- alternatives
-- default (if any)
-- }
-- res;
-- ```
impExp False (NmConCase fc sc alts def) =
do (s1, exp) <- impExp False sc
(s2, exp2) <- memoExp exp
res <- genName
swalts <- traverse (impConAltFalse res exp2) alts
swdef <- case def of
Nothing => pure $ ErrorStatement $ "unhandled con case on " ++ show fc
Just x =>
do (sd, r) <- impExp False x
pure $ sd <+> MutateStatement res r
let switch = SwitchStatement (IEConstructorHead exp2) swalts (Just swdef)
pure (s1 <+> s2 <+> LetDecl res Nothing <+> switch, IEVar res)
-- like `impExp False NmConCase`, but we return directly without
-- a local let binding
impExp True (NmConCase fc sc alts def) =
do (s1, exp) <- impExp False sc
(s2, exp2) <- memoExp exp
swalts <- traverse (impConAltTrue exp2) alts
swdef <- case def of
Nothing => pure $ ErrorStatement $ "unhandled con case on " ++ show fc
Just x => impExp True x
let switch = SwitchStatement (IEConstructorHead exp2) swalts (Just swdef)
pure (s1 <+> s2 <+> switch)
-- a case statement (pattern match on a constant)
-- is converted to a switch statement in JS.
-- the distinction between `impExp False` and
-- `impExp True` is the same as for constructor matches
impExp False (NmConstCase fc sc alts def) =
do (s1, exp) <- impExp False sc
res <- genName
swalts <- traverse (impConstAltFalse res) alts
swdef <- case def of
Nothing => pure $ ErrorStatement $ "unhandled const case on " ++ show fc
Just x =>
do
(sd, r) <- impExp False x
pure $ sd <+> MutateStatement res r
let switch = SwitchStatement exp swalts (Just swdef)
pure (s1 <+> LetDecl res Nothing <+> switch, IEVar res)
impExp True (NmConstCase fc sc alts def) =
do (s1, exp) <- impExp False sc
swalts <- traverse impConstAltTrue alts
swdef <- case def of
Nothing => pure $ ErrorStatement $ "unhandled const case on " ++ show fc
Just x => impExp True x
let switch = SwitchStatement exp swalts (Just swdef)
pure $ s1 <+> switch
-- coversion of primitive external functions like
-- `prim__newIORef`
impExp toReturn (NmExtPrim fc p args) =
do (s, a) <- impListExp args
pure $ pairToReturn toReturn (s, IEPrimFnExt p a)
-- A saturated constructor
-- TODO: Use ConInfo
impExp toReturn (NmCon fc x _ tag args) =
do (s, a) <- impListExp args
pure $ pairToReturn toReturn
(s, IEConstructor (impTag x tag) a)
-- a delayed computation
impExp toReturn (NmDelay fc _ t) =
do (s, x) <- impExp False t
pure $ pairToReturn toReturn (s, IEDelay x)
-- a forced computation
impExp toReturn (NmForce fc _ t) =
do (s, x) <- impExp False t
pure $ pairToReturn toReturn (s, IEForce x)
-- a let statement of the form
-- ```idris
-- let name = expr1
-- in expr2
--
-- ```
-- is converted to
--
-- ```javascript
-- expr1_statements;
-- const name_ = expr1_expr;
-- expr2_statements;
-- expr2_expr;
-- ```
-- where `name_` is a newly generated name, which
-- is replaced in `expr2`.
--
-- if `name` is not used in `expr2`, this is
-- simplified to
--
-- ```javascript
-- expr1_statements;
-- expr1_expr; -- evaluation of expr1!
-- expr2_statements;
-- expr2_expr;
-- ```
-- TODO: Is it necessary to generate a new name
-- here, or is this already handled by Idris itself?
impExp toReturn (NmLet fc x val sc) =
do (s1, v) <- impExp False val
(s2, sc_) <- impExp False sc
if isNameUsed x sc
then do
x_ <- genName
let reps = [(x, IEVar x_)]
let s2_ = replaceNamesExpS reps s2
let sc__ = replaceNamesExp reps sc_
let decl = ConstDecl x_ v
pure $ pairToReturn toReturn (s1 <+> decl <+> s2_, sc__)
else do
let decl = EvalExpStatement v
pure $ pairToReturn toReturn (s1 <+> decl <+> s2, sc_)
-- an erased argument is converted to `undefined`
impExp toReturn (NmErased fc) =
pure . expToReturn toReturn $ IENull
-- an error is converted to a `throw new Error`
-- statement. It's result is `undefined` (`IENull`).
impExp toReturn (NmCrash fc msg) =
pure $ pairToReturn toReturn (ErrorStatement msg, IENull)
-- a single alternative in a case statement.
-- In JS, this will be a single alternative of
-- a switch statement.
-- TODO: Use ConInfo
--
-- @ res : name of the local var (from a `let` statement)
-- to which the result should be assigned (if any)
-- @ target : The value against which to match
-- @ con : The constructor to use
impConAltFalse : {auto c : Ref Imps ImpSt}
-> (res : Name)
-> (target : ImperativeExp)
-> (con : NamedConAlt)
-> Core (ImperativeExp, ImperativeStatement)
impConAltFalse res target (MkNConAlt n _ tag args exp) =
do (s, r) <- impExp False exp
(tgts,tgte) <- memoExp target
let nargs = length args
let reps = zipWith (\i, n => (n, IEConstructorArg (cast i) tgte))
[1..nargs]
args
pure ( IEConstructorTag (impTag n tag)
, tgts <+> (replaceNamesExpS reps $ s <+> MutateStatement res r)
)
impConAltTrue : {auto c : Ref Imps ImpSt}
-> (target : ImperativeExp)
-> (con : NamedConAlt)
-> Core (ImperativeExp, ImperativeStatement)
impConAltTrue target (MkNConAlt n _ tag args exp) =
do s <- impExp True exp
(tgts,tgte) <- memoExp target
let nargs = length args
let reps = zipWith (\i, n => (n, IEConstructorArg (cast i) tgte))
[1..nargs]
args
pure ( IEConstructorTag (impTag n tag), tgts <+> replaceNamesExpS reps s)
impConstAltFalse : {auto c : Ref Imps ImpSt}
-> Name
-> NamedConstAlt
-> Core (ImperativeExp, ImperativeStatement)
impConstAltFalse res (MkNConstAlt c exp) =
do (s, r) <- impExp False exp
pure (IEConstant c, s <+> MutateStatement res r)
impConstAltTrue : {auto c : Ref Imps ImpSt}
-> NamedConstAlt
-> Core (ImperativeExp, ImperativeStatement)
impConstAltTrue (MkNConstAlt c exp) =
do s <- impExp True exp
pure (IEConstant c, s)
-- generate an `ImperativeStatement` from the
-- given named definition
getImp : {auto c : Ref Imps ImpSt}
-> (Name, FC, NamedDef)
-> Core ImperativeStatement
getImp (n, fc, MkNmFun args exp) =
pure $ FunDecl fc n args !(impExp True exp)
getImp (n, fc, MkNmError exp) =
throw $ (InternalError $ show exp)
getImp (n, fc, MkNmForeign cs args ret) =
pure $ ForeignDecl fc n cs args ret
getImp (n, fc, MkNmCon _ _ _) =
pure DoNothing
||| Compiles a `ClosedTerm` to a pair of statements,
||| the first corresponding to a list of toplevel definitions
||| the other being the program's main entry point.
|||
||| Toplevel definitions defined in the given `ClosedTerm`
||| are only included if they are (transitively) being
||| invoked by the main function.
|||
||| In addition, toplevel definitions are tail call optimized
||| (see module `Compiler.ES.TailRec`).
export
compileToImperative : Ref Ctxt Defs
-> ClosedTerm
-> Core (ImperativeStatement, ImperativeStatement)
compileToImperative c tm =
do -- generate the named definitions and main expression
-- from the `ClosedTerm`
cdata <- getCompileData False Cases tm
-- list of named definitions
let ndefs = namedDefs cdata
-- main expression
let ctm = forget (mainExpr cdata)
ref <- newRef Imps (MkImpSt 0)
-- list of toplevel definitions (only those necessary
-- to implement the main expression)
lst_defs <- traverse getImp ndefs
let defs = concat lst_defs
-- tail rec optimited definitions
defs_optim <- tailRecOptim defs
-- main expression and statements necessary to
-- implement main's body
(s, main) <- impExp False ctm
pure $ (defs_optim, s <+> EvalExpStatement main)

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@ -1,340 +0,0 @@
||| ASTs representing imperative ES (= ECMAScript)
||| expressions and statements.
||| These are converted to ES code in module `Compiler.ES.ES`.
||| They are generated from `Term []`s in
||| module `Compiler.ES.Imperative`.
module Compiler.ES.ImperativeAst
import Compiler.CompileExpr
import public Core.TT
import public Data.Vect
import public Data.List
%default covering
mutual
||| A tree representing an ES expression.
|||
||| This is converted to ES code in function
||| `Compiler.ES.ES.impExp2es`.
public export
data ImperativeExp : Type where
||| A variable of the given name
IEVar : (name : Name) -> ImperativeExp
||| A lambda expression : `(args) => { body }`
IELambda : (args : List Name)
-> (body : ImperativeStatement)
-> ImperativeExp
||| Function application : `lhs(args)`
IEApp : (lhs : ImperativeExp)
-> (args : List ImperativeExp)
-> ImperativeExp
||| A (primitive) constant
IEConstant : (value : Constant) -> ImperativeExp
||| A primitive function. This will be converted to
||| ES code in `Compiler.ES.ES.jsOp`.
IEPrimFn : (function : PrimFn arity)
-> (args : Vect arity ImperativeExp)
-> ImperativeExp
||| A primitive external function. Example `prim__newIORef`
IEPrimFnExt : (function : Name)
-> (args : List ImperativeExp)
-> ImperativeExp
||| Calls `object.h` on the JS object built by `object`
||| This is used to extract the constructor, which
||| this specific object represents.
IEConstructorHead : (object : ImperativeExp) -> ImperativeExp
||| Tag representing either a data constructor (in that case
||| an integer is used as its index) or a type constructor
||| (these come up when pattern matching on types).
IEConstructorTag : (tag : Either Int String) -> ImperativeExp
||| Argument of a data constructor applied to the given JS object.
||| The arg index starts at 1.
|||
||| Example: `object.a3`
IEConstructorArg : (index : Int)
-> (object : ImperativeExp)
-> ImperativeExp
||| Creates a JS object using the given constructor
||| tag and arguments. The corresponding values are
||| extracted using `IEConstructorTag` and `IEConstructorArg`.
IEConstructor : (tag : Either Int String)
-> (args : List ImperativeExp)
-> ImperativeExp
||| A delayed calculation coming either from a `Lazy`
||| or infinite (`Inf`) value.
|||
||| In the JS backends, these are wrapped zero-argument lambdas:
||| `(() => expr)`.
IEDelay : (expr : ImperativeExp) -> ImperativeExp
||| Forces the evaluation of a delayed (`Lazy` or `Inf`)
||| value.
|||
||| In the JS backends, these just invoke the corresponding
||| zero-argument lambdas:
||| `expr()`.
IEForce : (expr : ImperativeExp) -> ImperativeExp
||| This is converted to `undefined`.
|||
||| TODO: This should be renamed to `IEUndefined` in
||| order not to be confused with the JS constant
||| `null`.
IENull : ImperativeExp
||| A tree of ES statements.
|||
||| This is converted to ES code in `Compiler.ES.imperative2es`.
public export
data ImperativeStatement : Type where
||| This is converted to the empty string.
DoNothing : ImperativeStatement
||| A sequence of statements. These will be processed
||| individually and separated by a line break.
SeqStatement : (fstStmt : ImperativeStatement)
-> (sndStmt : ImperativeStatement)
-> ImperativeStatement
||| A function declaration. This will be converted
||| to a declaration of the following form:
|||
||| ```
||| function funName(args){ -- fc
||| body
||| }
||| ```
FunDecl : (fc : FC)
-> (funName : Name)
-> (args : List Name)
-> (body : ImperativeStatement)
-> ImperativeStatement
||| An FFI declaration
|||
||| @ ffiImpls : List of implementation strings.
||| `Compiler.ES.ES.foreignDecl`
||| will try to lookup a valid codegen prefix like "node"
||| or "javascript" in each of these and return the
||| remainder as the actual ES code in case of a success.
|||
||| The argtypes and returnType will be ignored when generating
||| ES code.
ForeignDecl : (fc : FC)
-> (funName : Name)
-> (ffiImpls : List String)
-> (argTypes : List CFType)
-> (returnType : CFType)
-> ImperativeStatement
||| A `return` statement. Example: `return body;`
ReturnStatement : (body : ImperativeExp) -> ImperativeStatement
||| A `switch` statement of the form
|||
||| ```
||| switch(expr) {
||| case altExp1 : {
||| altImpl1
||| break;
||| }
||| case altExp2 : {
||| altImpl2
||| break;
||| }
||| default:
||| deflt
||| }
||| ```
SwitchStatement : (expr : ImperativeExp)
-> (alts : List (ImperativeExp, ImperativeStatement))
-> (deflt : Maybe ImperativeStatement)
-> ImperativeStatement
||| A `let` statement with an optional value
||| This is converted to `let name;` if `value`
||| is `Nothing` and to `let name = expr;` if
||| `value` is `Just expr`.
LetDecl : (name : Name)
-> (value : Maybe ImperativeExp)
-> ImperativeStatement
||| A `const` declaration.
||| This is converted to `const name = expr;`.
ConstDecl : (name : Name)
-> (expr : ImperativeExp)
-> ImperativeStatement
||| Assigns the given expression to the variable
||| of the given name: `name = expr;`.
MutateStatement : (name : Name)
-> (expr : ImperativeExp)
-> ImperativeStatement
||| Throws an error with the given message:
||| `throw new Error(msg);`.
ErrorStatement : (msg : String) -> ImperativeStatement
||| Evaluates the given expression (by ending the corresponding
||| ES code with a semicolon):
||| `expr;`.
EvalExpStatement : (expr : ImperativeExp) -> ImperativeStatement
||| Adds the given String as a comment
||| `/*comment*/`.
CommentStatement : (comment : String) -> ImperativeStatement
||| Runs the given statement 'forever':
|||
||| ```
||| while(true){
||| body
||| }
||| ```
ForEverLoop : (body : ImperativeStatement) -> ImperativeStatement
public export
Semigroup ImperativeStatement where
DoNothing <+> y = y
x <+> DoNothing = x
x <+> y = SeqStatement x y
public export
Monoid ImperativeStatement where
neutral = DoNothing
mutual
export
Show ImperativeExp where
show (IEVar n) = "(IEVar " ++ show n ++ ")"
show (IELambda args b) = "(IELambda " ++ show args ++ " " ++ show b ++ ")"
show (IEApp f args) = "(IEApp " ++ show f ++ " " ++ show args ++ ")"
show (IEConstant c) = "(IEConstant " ++ show c ++ ")"
show (IEPrimFn f args) = "(IEPrimFn " ++ show f ++ " " ++ show args ++ ")"
show (IEPrimFnExt f args) = "(IEPrimFnExt " ++ show f ++ " " ++ show args ++ ")"
show (IEConstructorHead c) = "(IEConstructorHead " ++ show c ++ ")"
show (IEConstructorTag t) = "(IEConstructorTag " ++ show t ++ ")"
show (IEConstructorArg i c) = "(IEConstructorArg " ++ show i ++ " " ++ show c ++ ")"
show (IEConstructor i args) = "(IEConstructor " ++ show i ++ " " ++ show args ++ ")"
show (IEDelay x) = "(IEDelay " ++ show x ++ ")"
show (IEForce x) = "(IEForce " ++ show x ++ ")"
show IENull = "IENull"
export
Show ImperativeStatement where
show DoNothing = "DoNothing"
show (SeqStatement x y) = show x ++ ";" ++ show y
show (FunDecl fc n args b) = "\n\n" ++ "(FunDecl (" ++ show fc ++ ") " ++ show n ++ " " ++ show args ++ " " ++ show b ++ ")"
show (ForeignDecl fc n path args ret) = "(ForeignDecl " ++ show n ++ " " ++ show path ++")"
show (ReturnStatement x) = "(ReturnStatement " ++ show x ++ ")"
show (SwitchStatement e alts d) = "(SwitchStatement " ++ show e ++ " " ++ show alts ++ " " ++ show d ++ ")"
show (LetDecl n v) = "(LetDecl " ++ show n ++ " " ++ show v ++ ")"
show (ConstDecl n v) = "(ConstDecl " ++ show n ++ " " ++ show v ++ ")"
show (MutateStatement n v) = "(MutateStatement " ++ show n ++ " " ++ show v ++ ")"
show (ErrorStatement s) = "(ErrorStatement " ++ s ++ ")"
show (EvalExpStatement x) = "(EvalExpStatement " ++ show x ++ ")"
show (CommentStatement x) = "(CommentStatement " ++ show x ++ ")"
show (ForEverLoop x) = "(ForEverLoop " ++ show x ++ ")"
mutual
||| Iteratively replaces expressions using
||| the given function. This is mainly used for
||| replacing variables according to their name as
||| in `replaceNamesExp`.
public export
replaceExp : (ImperativeExp -> Maybe ImperativeExp)
-> ImperativeExp
-> ImperativeExp
replaceExp rep x =
case rep x of
Just z => z
Nothing =>
case x of
IEVar _ => x
IELambda args body => IELambda args $ replaceExpS rep body
IEApp f args => IEApp (replaceExp rep f)
(replaceExp rep <$> args)
IEConstant _ => x
IEPrimFn f args => IEPrimFn f (replaceExp rep <$> args)
IEPrimFnExt f args => IEPrimFnExt f (replaceExp rep <$> args)
IEConstructorHead e => IEConstructorHead $ replaceExp rep e
IEConstructorTag _ => x
IEConstructorArg i e => IEConstructorArg i (replaceExp rep e)
IEConstructor t args => IEConstructor t (replaceExp rep <$> args)
IEDelay e => IEDelay $ replaceExp rep e
IEForce e => IEForce $ replaceExp rep e
IENull => x
||| Iteratively replaces expressions using
||| the given function. This is mainly used for
||| replacing variables according to their name as
||| in `replaceNamesExpS`.
public export
replaceExpS : (ImperativeExp -> Maybe ImperativeExp)
-> ImperativeStatement
-> ImperativeStatement
replaceExpS rep DoNothing =
DoNothing
replaceExpS rep (SeqStatement x y) =
SeqStatement (replaceExpS rep x) (replaceExpS rep y)
replaceExpS rep (FunDecl fc n args body) =
FunDecl fc n args $ replaceExpS rep body
replaceExpS reps decl@(ForeignDecl fc n path args ret) =
decl
replaceExpS rep (ReturnStatement e) =
ReturnStatement $ replaceExp rep e
replaceExpS rep (SwitchStatement s alts def) =
let s_ = replaceExp rep s
alts_ = (\(e,b) => (replaceExp rep e, replaceExpS rep b)) <$> alts
def_ = replaceExpS rep <$> def
in SwitchStatement s_ alts_ def_
replaceExpS rep (LetDecl n v) =
LetDecl n $ replaceExp rep <$> v
replaceExpS rep (ConstDecl n v) =
ConstDecl n $ replaceExp rep v
replaceExpS rep (MutateStatement n v) =
MutateStatement n $ replaceExp rep v
replaceExpS rep (ErrorStatement s) =
ErrorStatement s
replaceExpS rep (EvalExpStatement x) =
EvalExpStatement $ replaceExp rep x
replaceExpS rep (CommentStatement x) =
CommentStatement x
replaceExpS rep (ForEverLoop x) =
ForEverLoop $ replaceExpS rep x
rep : List (Name, ImperativeExp)
-> ImperativeExp
-> Maybe ImperativeExp
rep reps (IEVar n) = lookup n reps
rep _ _ = Nothing
||| Replaces all occurences of the names in the
||| assoc list with the corresponding expression.
public export
replaceNamesExpS : List (Name, ImperativeExp)
-> ImperativeStatement
-> ImperativeStatement
replaceNamesExpS reps x =
replaceExpS (rep reps) x
||| Replaces all occurences of the names in the
||| assoc list with the corresponding expression.
public export
replaceNamesExp : List (Name, ImperativeExp)
-> ImperativeExp
-> ImperativeExp
replaceNamesExp reps x =
replaceExp (rep reps) x

6
src/Compiler/ES/Javascript.idr
View File

@ -1,13 +1,14 @@
||| The `Javascript` code generator. ||| The `Javascript` code generator.
module Compiler.ES.Javascript module Compiler.ES.Javascript
import Compiler.ES.ES import Compiler.ES.Codegen
import Compiler.Common import Compiler.Common
import Compiler.CompileExpr import Compiler.CompileExpr
import Core.Context import Core.Context
import Core.TT import Core.TT
import Core.Options
import Libraries.Utils.Path import Libraries.Utils.Path
import System import System
@ -22,8 +23,7 @@ import Libraries.Data.String.Extra
||| Compile a TT expression to Javascript ||| Compile a TT expression to Javascript
compileToJS : Ref Ctxt Defs -> compileToJS : Ref Ctxt Defs ->
ClosedTerm -> Core String ClosedTerm -> Core String
compileToJS c tm = compileToJS c tm = compileToES c Javascript tm ["browser", "javascript"]
compileToES c tm ["browser", "javascript"]
htmlHeader : String htmlHeader : String
htmlHeader = concat $ the (List String) $ htmlHeader = concat $ the (List String) $

6
src/Compiler/ES/Node.idr
View File

@ -3,12 +3,13 @@ module Compiler.ES.Node
import Idris.Env import Idris.Env
import Compiler.ES.ES import Compiler.ES.Codegen
import Compiler.Common import Compiler.Common
import Compiler.CompileExpr import Compiler.CompileExpr
import Core.Context import Core.Context
import Core.Options
import Core.TT import Core.TT
import Libraries.Utils.Path import Libraries.Utils.Path
@ -28,8 +29,7 @@ findNode = do
||| Compile a TT expression to Node ||| Compile a TT expression to Node
compileToNode : Ref Ctxt Defs -> ClosedTerm -> Core String compileToNode : Ref Ctxt Defs -> ClosedTerm -> Core String
compileToNode c tm = do compileToNode c tm = compileToES c Node tm ["node", "javascript"]
compileToES c tm ["node", "javascript"]
||| Node implementation of the `compileExpr` interface. ||| Node implementation of the `compileExpr` interface.
compileExpr : Ref Ctxt Defs compileExpr : Ref Ctxt Defs

237
src/Compiler/ES/State.idr Normal file
View File

@ -0,0 +1,237 @@
||| State used during JS code generation and when
||| converting `NamedCExp` to imperative statements.
module Compiler.ES.State
import Core.Context
import Compiler.ES.Ast
import Libraries.Data.SortedMap
%default total
--------------------------------------------------------------------------------
-- Utilities
--------------------------------------------------------------------------------
||| Convenient alias for `throw . InternalError`
export
error : String -> Core a
error = throw . InternalError
||| Convenient alias for `error . fastConcat`.
export
errorConcat : List String -> Core a
errorConcat = error . fastConcat
--------------------------------------------------------------------------------
-- CG Mode
--------------------------------------------------------------------------------
||| Specifies the readability of the generated code.
|||
||| In `Pretty` mode (the default), the codegen will
||| lift multiline lambdas from argument lists to the
||| surrounding scope and keep user generated names.
||| In addition, blocks of code are laid out with indentation
||| and linebreaks for better readability.
|||
||| In `Compact` mode, all local variables are replace with
||| short machine generated ones, and every toplevel
||| function is printed on a single line without
||| line-breaks or indentation.
|||
||| Finally, `Minimal` mode is like `Compact`, but toplevel
||| function names will be mangled and replaced with
||| machine generated indices.
public export
data CGMode = Pretty | Compact | Minimal
||| We only keep user defined local names and only so
||| in `Pretty` mode.
export
keepLocalName : Name -> CGMode -> Bool
keepLocalName (UN n) Pretty = True
keepLocalName _ _ = False
||| We mangle toplevel function names only in `Minimal` mode.
export
keepRefName : Name -> CGMode -> Bool
keepRefName _ Minimal = False
keepRefName _ _ = True
--------------------------------------------------------------------------------
-- State
--------------------------------------------------------------------------------
public export
data ESs : Type where
||| Settings and state used during JS code generation.
public export
record ESSt where
constructor MkESSt
||| Whether to always use minimal names
mode : CGMode
||| Returns `True`, if the given expression can be used as an
||| argument in a function call. (If this returns `False`, the
||| given expression will be lifted to the surrounding scope
||| and bound to a new local variable).
isArg : Exp -> Bool
||| Returns `True`, if the given expression can be used directly
||| in a function application. (If this returns `False`, the
||| given expression will be lifted to the surrounding scope
||| and bound to a variable).
isFun : Exp -> Bool
||| Current local variable index
loc : Int
||| Current global variable index
ref : Int
||| Mapping from local names to minimal expressions
locals : SortedMap Name Minimal
||| Mapping from toplevel function names to variables
refs : SortedMap Name Var
||| Mappings from name to definitions to be added
||| to the preamble.
preamble : SortedMap String String
||| Accepted codegen types in foreign function definitions.
||| For JS, this is either `["node","javascript"]` or
||| `["browser","javascript"]`.
ccTypes : List String
--------------------------------------------------------------------------------
-- Local Variables
--------------------------------------------------------------------------------
||| Map a local name to the given minimal expression
export
addLocal : { auto c : Ref ESs ESSt } -> Name -> Minimal -> Core ()
addLocal n v = update ESs $ record { locals $= insert n v }
||| Get and bump the local var index
export
nextLocal : { auto c : Ref ESs ESSt } -> Core Var
nextLocal = do
st <- get ESs
put ESs $ record { loc $= (+1) } st
pure $ VLoc st.loc
||| Register a `Name` as a local variable. The name is kept
||| unchanged if `keepLocalName` returns `True` with the
||| current name and state, otherwise it is converted to
||| a new local variable.
export
registerLocal : {auto c : Ref ESs ESSt} -> (name : Name) -> Core Var
registerLocal n = do
st <- get ESs
if keepLocalName n st.mode
then let v = VName n in addLocal n (MVar v) >> pure v
else do v <- nextLocal
addLocal n (MVar v)
pure v
||| Look up a name and call `registerLocal` in case it has
||| not been added to the map of local names.
export
getOrRegisterLocal : {auto c : Ref ESs ESSt} -> Name -> Core Minimal
getOrRegisterLocal n = do
Nothing <- lookup n . locals <$> get ESs
| Just v => pure v
MVar <$> registerLocal n
||| Maps the given list of names (from a pattern match
||| on a data constructor) to the corresponding
||| projections on the given scrutinee.
export
projections : {auto c : Ref ESs ESSt}
-> (scrutinee : Minimal)
-> List Name
-> Core ()
projections sc xs =
let ps = zip [1..length xs] xs
in traverse_ (\(i,n) => addLocal n $ MProjection i sc) ps
--------------------------------------------------------------------------------
-- Toplevel Names
--------------------------------------------------------------------------------
||| Map a toplevel function name to the given `Var`
export
addRef : { auto c : Ref ESs ESSt } -> Name -> Var -> Core ()
addRef n v = update ESs $ record { refs $= insert n v }
||| Get and bump the local ref index
export
nextRef : { auto c : Ref ESs ESSt } -> Core Var
nextRef = do
st <- get ESs
put ESs $ record { ref $= (+1) } st
pure $ VRef st.ref
registerRef : {auto c : Ref ESs ESSt} -> (name : Name) -> Core Var
registerRef n = do
st <- get ESs
if keepRefName n st.mode
then let v = VName n in addRef n v >> pure v
else do v <- nextRef
addRef n v
pure v
||| Look up a name and call `registerRef` in case it has
||| not been added to the map of toplevel function names.
||| The name will be replace with an index if the current
||| `GCMode` is set to `Minimal`.
export
getOrRegisterRef : {auto c : Ref ESs ESSt} -> Name -> Core Var
getOrRegisterRef n = do
Nothing <- lookup n . refs <$> get ESs
| Just v => pure v
registerRef n
--------------------------------------------------------------------------------
-- Preamble and Foreign Definitions
--------------------------------------------------------------------------------
||| Add a new set of definitions under the given name to
||| the preamble. Fails with an error if a different set
||| of definitions have already been added under the same name.
export
addToPreamble : {auto c : Ref ESs ESSt}
-> (name : String)
-> (def : String) -> Core ()
addToPreamble name def = do
s <- get ESs
case lookup name (preamble s) of
Nothing => put ESs $ record { preamble $= insert name def } s
Just x =>
unless (x == def) $ do
errorConcat
[ "two incompatible definitions for ", name
, "<|",x ,"|> <|" , def, "|>"
]
--------------------------------------------------------------------------------
-- Initialize State
--------------------------------------------------------------------------------
||| Initial state of the code generator
export
init : (mode : CGMode)
-> (isArg : Exp -> Bool)
-> (isFun : Exp -> Bool)
-> (types : List String)
-> ESSt
init mode isArg isFun ccs =
MkESSt mode isArg isFun 0 0 empty empty empty ccs
||| Reset the local state before defining a new toplevel
||| function.
export
reset : {auto c : Ref ESs ESSt} -> Core ()
reset = update ESs $ record { loc = 0, locals = empty }

508
src/Compiler/ES/TailRec.idr
View File

@ -12,8 +12,8 @@
||| -- f3 -- ||| -- f3 --
||| ``` ||| ```
||| |||
||| Function `tailCallGraph` creates a directed graph of all toplevel ||| First, a directed graph of all toplevel function calls
||| function calls (incoming and outgoing) in tail-call position: ||| (incoming and outgoing) in tail-call position is created:
||| |||
||| ```idris ||| ```idris
||| MkCallGraph $ fromList [(f1,[f1,f2,f3]),(f2,[f1,f4]),(f3,[f2])] ||| MkCallGraph $ fromList [(f1,[f1,f2,f3]),(f2,[f1,f4]),(f3,[f2])]
@ -22,62 +22,98 @@
||| |||
||| Mutually tail-recursive functions form a strongly connected ||| Mutually tail-recursive functions form a strongly connected
||| component in such a call graph: There is a (directed) path from every function ||| component in such a call graph: There is a (directed) path from every function
||| to every other function. Kosaraju's algorithm is used to identify ||| to every other function. Tarjan's algorithm is used to identify
||| these strongly connected components by mapping every function ||| these strongly connected components and grouping them in
||| of a strongly connected component to the same representative (called `root`) ||| a `List` of `List1`s.
||| of its component. In the above case, this would result in a sorted
||| map of the following structure:
||| |||
||| A tail-recursive group of functions is now converted to an imperative
||| loop as follows: Let `obj={h:_, a1:_, a2:_, ...}`
||| be a Javascript object consisting
||| of a tag `h` and arguments `a1`,`a2`,... . `h` indicates, whether `obj.a1`
||| contains the result of the computation (`h = 0`) or describes
||| a continuation indicating the next function to be invoked, in which
||| case fields `a1`,`a2`,... are the function's arguments.
||| together with the necessary arguments. The group of mutually
||| recursive functions is now converted to a single switch statement
||| where each branch corresponds to one of the function.
||| Each function will be changed in such a way that instead of
||| (recursively) calling another function in its group it will return
||| a new object `{h:_, a1:_, ...}` with `h` indicating the next
||| function to call (the next branch to choose in the `switch`
||| statement and `a1`,`a2`,... being the next function's set of
||| arguments. The function and initial argument object will then
||| be passed to toplevel function `__tailRec`, which loops
||| until the object signals that we have arrived at a result.
||| |||
||| ```idris ||| Here is an example of two mutually tail-recursive functions
||| fromList [(f1,f1),(f1,f2),(f1,f3),(f4,f4)] ||| together with the generated tail-call optimized code.
||| ```idris
||| |||
||| As can be seen, f1,f2, and f3 all point to the same root (f1), while ||| Original version:
||| f4 points to a different root.
|||
||| Such a tail-recursive call graph is now converted to an imperative
||| loop as follows: Let `obj0={h:0, a1:...}` be a Javascript object consisting
||| of a tag `h` and an argument `a1`. `h` indicates, whether `obj0.a1`
||| contains the result of the computation (`h = 1`) or describes
||| a continuation indicating the next function to invoke
||| together with the necessary arguments. A single `step`
||| function will take such an object and use `a1` in a switch
||| statement to decide , which function
||| implementation to invoke (f1,f2,f3).
||| The result will be a new object, again indicating in tag `h`, whether
||| we arrived at a result, or we need to continue looping.
|||
||| Here is a cleaned-up and simplified version of the Javascript code
||| generated:
||| |||
||| ```javascript ||| ```javascript
||| function imp_gen_tailoptim_0(imp_gen_tailoptim_fusion_args_0){//EmptyFC ||| function isEven(arg){
||| function imp_gen_tailoptim_step_0(obj0){ ||| switch (arg) {
||| switch(obj0.a1.h){ ||| case 0 : return 1;
||| case 0: ... //implementation of a single step of f1 ||| default : return isOdd(arg - 1);
||| //taking its arguments from the fields of `obj0.a1`.
||| case 1: ... //implementation of a single step of f2
||| case 2: ... //implementation of a single step of f3
||| } ||| }
||| } ||| }
||| |||
||| // initial object containing the arguments for the first ||| function isOdd(arg){
||| // function call ||| switch (arg) {
||| obj0 = ({h:0, a1: imp_gen_tailoptim_fusion_args_0}); ||| case 0 : return 0;
||| ||| default : return isEven(arg - 1);
||| // infinite loop running until `obj0.h != 0`.
||| while(true){
||| switch(obj0.h){
||| case 0: {
||| obj0 = imp_gen_tailoptim_step_0(obj0);
||| break; }
||| default:
||| return obj0.a1;
||| } ||| }
||| }
||| } ||| }
||| ``` ||| ```
|||
||| The above gets converted to code similar to
||| the following.
|||
||| ```javascript
||| function tcOpt(arg) {
||| switch(arg.h) {
||| // former function isEven
||| case 1: {
||| switch (arg.a1) {
||| case 0 : return {h: 0, a1: 1};
||| default : return {h: 2, a1: arg.a1 - 1};
||| }
||| }
||| // former function isOdd
||| case 2: {
||| switch (a1) {
||| case 0 : return {h: 0, a1: 0};
||| default : return {h: 1, a1: arg.a1 - 1};
||| }
||| }
||| }
|||
||| function isEven(arg){
||| return __tailRec(tcOpt,{h: 1, a1: arg})
||| }
|||
||| function isOdd(arg){
||| return __tailRec(tcOpt,{h: 2, a1: arg})
||| }
||| ```
|||
||| Finally, `__tailRec` is implemented as follows:
|||
||| ```javascript
||| function __tailRec(f,ini) {
||| let obj = ini;
||| while(true){
||| switch(obj.h){
||| case 0: return obj.a1;
||| default: obj = f(obj);
||| }
||| }
||| }
||| ```
|||
||| While the above example is in Javascript, this module operates
||| on `NamedCExp` exclusively, so it might be used with any backend
||| where the things described above can be expressed.
module Compiler.ES.TailRec module Compiler.ES.TailRec
import Data.Maybe import Data.Maybe
@ -87,218 +123,230 @@ import Data.String
import Libraries.Data.Graph import Libraries.Data.Graph
import Libraries.Data.SortedSet import Libraries.Data.SortedSet
import Libraries.Data.List.Extra as L import Libraries.Data.List.Extra as L
import Libraries.Data.SortedSet import Libraries.Data.SortedMap as M
import Libraries.Data.SortedMap
import Core.Name import Core.Name
import Core.CompileExpr
import Core.Context import Core.Context
import Compiler.ES.ImperativeAst
import Debug.Trace --------------------------------------------------------------------------------
-- Utilities
--------------------------------------------------------------------------------
%default covering -- indices of a list starting at 1
indices : List a -> List Int
indices as = [1 .. cast (length as)]
data TailRecS : Type where zipWithIndices : List a -> List (Int,a)
zipWithIndices as = zip (indices as) as
record TailSt where --------------------------------------------------------------------------------
constructor MkTailSt -- Tailcall Graph
nextName : Int --------------------------------------------------------------------------------
genName : {auto c : Ref TailRecS TailSt} -> Core Name ||| A (toplevel) function in a group of mutually tail recursive functions.
genName = public export
do s <- get TailRecS record TcFunction where
let i = nextName s constructor MkTcFunction
put TailRecS (record { nextName = i + 1 } s) ||| Function's name
pure $ MN "imp_gen_tailoptim" i name : Name
-- returns the set of tail calls made from a given ||| Function's index in its tail call group
-- imperative statement. ||| This is used to decide on which branch to choose in
allTailCalls : ImperativeStatement -> SortedSet Name ||| the next iteration
allTailCalls (SeqStatement x y) = allTailCalls y index : Int
allTailCalls (ReturnStatement $ IEApp (IEVar n) _) = singleton n
allTailCalls (SwitchStatement e alts d) =
concatMap allTailCalls d `union` concatMap (allTailCalls . snd) alts
allTailCalls (ForEverLoop x) = allTailCalls x
allTailCalls o = empty
argsName : Name ||| Argument list
argsName = MN "imp_gen_tailoptim_Args" 0 args : List Name
stepFnName : Name ||| Function's definition
stepFnName = MN "imp_gen_tailoptim_step" 0 exp : NamedCExp
fusionArgsName : Name ||| A group of mutually tail recursive toplevel functions.
fusionArgsName = MN "imp_gen_tailoptim_fusion_args" 0 public export
record TcGroup where
constructor MkTcGroup
||| Index of the group. This is used to generate a uniquely
||| named tail call optimized toplevel function.
index : Int
createNewArgs : List ImperativeExp -> ImperativeExp ||| Set of mutually recursive functions.
createNewArgs = IEConstructor (Left 0) functions : SortedMap Name TcFunction
createArgInit : List Name -> ImperativeStatement -- tail calls made from an expression
createArgInit names = tailCalls : NamedCExp -> SortedSet Name
LetDecl argsName (Just $ IEConstructor (Left 0) (map IEVar names)) tailCalls (NmLet _ _ _ z) = tailCalls z
tailCalls (NmApp _ (NmRef _ x) _) = singleton x
tailCalls (NmConCase fc sc xs x) =
concatMap (\(MkNConAlt _ _ _ _ x) => tailCalls x) xs <+>
concatMap tailCalls x
tailCalls (NmConstCase fc sc xs x) =
concatMap (\(MkNConstAlt _ x) => tailCalls x) xs <+>
concatMap tailCalls x
tailCalls _ = empty
replaceTailCall : Name -> ImperativeStatement -> ImperativeStatement -- Checks if a `List1` of functions actually has any tail recursive
replaceTailCall n (SeqStatement x y) = SeqStatement x (replaceTailCall n y) -- function calls and needs to be optimized.
replaceTailCall n (ReturnStatement x) = -- In case of a larger group (more than one element)
let defRet = ReturnStatement $ IEConstructor (Left 1) [x] -- the group contains tailcalls by construction. In case
in case x of -- of a single function, we need to check that at least one
IEApp (IEVar cn) arg_vals => -- outgoing tailcall goes back to the function itself.
if n == cn then ReturnStatement $ createNewArgs arg_vals -- We use the given mapping from `Name` to set of names
else defRet -- called in tail position to verify this.
_ => defRet hasTailCalls : SortedMap Name (SortedSet Name) -> List1 Name -> Bool
replaceTailCall n (SwitchStatement e alts d) = hasTailCalls g (x ::: Nil) = maybe False (contains x) $ lookup x g
SwitchStatement e (map (mapSnd $ replaceTailCall n) alts) hasTailCalls _ _ = True
(map (replaceTailCall n) d)
replaceTailCall n (ForEverLoop x) =
ForEverLoop $ replaceTailCall n x
replaceTailCall n o = o
-- generates the tailcall-optimized function body -- Given a strongly connected group of functions, plus
makeTailOptimToBody : Name -- a unique index, convert them to a list of
-> List Name -- consisting of the function names plus the `TcGroup`,
-> ImperativeStatement -- to which they belong.
-> ImperativeStatement toGroup : SortedMap Name (Name,List Name,NamedCExp)
makeTailOptimToBody n argNames body = -> (Int,List1 Name)
let newArgExp = map (\x => IEConstructorArg (cast x) (IEVar argsName)) [1..length argNames] -> List (Name,TcGroup)
bodyArgsReplaced = replaceNamesExpS (zip argNames newArgExp) body toGroup funMap (groupIndex,functions) =
stepBody = replaceTailCall n bodyArgsReplaced let ns = zipWithIndices $ forget functions
group = MkTcGroup groupIndex . fromList $ mapMaybe fun ns
in (,group) <$> forget functions
where fun : (Int,Name) -> Maybe (Name,TcFunction)
fun (fx, n) = do
(_,args,exp) <- lookup n funMap
pure (n,MkTcFunction n fx args exp)
-- single step function. This takes a single argument -- Returns the connected components of the tail call graph
-- and returns a new object indicating whether to continue looping -- of a set of toplevel function definitions.
-- or to return a result. -- Every function name that is part of a tail-call group
stepFn = FunDecl EmptyFC stepFnName [argsName] stepBody -- (a set of mutually tail-recursive functions)
-- points to its corresponding group.
tailCallGroups : List (Name,List Name,NamedCExp)
-> SortedMap Name TcGroup
tailCallGroups funs =
let funMap = M.fromList $ map (\t => (fst t,t)) funs
graph = map (\(_,_,x) => tailCalls x) funMap
groups = filter (hasTailCalls graph) $ tarjan graph
in fromList $ concatMap (toGroup funMap) (zipWithIndices groups)
-- calls the step function and mutates the loop object with the result --------------------------------------------------------------------------------
loopRec = MutateStatement argsName (IEApp (IEVar stepFnName) [IEVar argsName]) -- Converting tail call groups to expressions
--------------------------------------------------------------------------------
-- returns field `a1` from the loop object. public export
loopReturn = ReturnStatement (IEConstructorArg 1 $ IEVar argsName) record Function where
constructor MkFunction
name : Name
args : List Name
body : NamedCExp
-- switch on the constructor head and either continue looping or tcFunction : Int -> Name
-- return the result tcFunction = MN "$tcOpt"
loop = ForEverLoop
$ SwitchStatement (IEConstructorHead $ IEVar argsName)
[(IEConstructorTag $ Left 0, loopRec)]
(Just loopReturn)
in stepFn <+> createArgInit argNames <+> loop
-- when creating the tail call graph, we only process tcArgName : Name
-- function declarations and we are only interested tcArgName = MN "$a" 0
-- in calls being made at tail position
tailCallGraph : ImperativeStatement -> SortedMap Name (SortedSet Name)
tailCallGraph (SeqStatement x y) =
mergeWith union (tailCallGraph x) (tailCallGraph y)
tailCallGraph (FunDecl fc n args body) = tcContinueName : (groupIndex : Int) -> (functionIndex : Int) -> Name
singleton n $ allTailCalls body tcContinueName gi fi = MN ("TcContinue" ++ show gi) fi
tailCallGraph _ = empty tcDoneName : (groupIndex : Int) -> Name
tcDoneName gi = MN "TcDone" gi
-- lookup up the list of values associated with -- Converts a single function in a mutually tail-recursive
-- a given key (`Nil` if the key is not present in the list) -- group of functions to a single branch in a pattern match.
lookupList : k -> SortedMap k (SortedSet b) -> List b -- Recursive function calls will be replaced with an
lookupList v = maybe [] SortedSet.toList . lookup v -- applied data constructor whose tag indicates the
-- branch in the pattern match to use next, and whose values
-- will be used as the arguments for the next function.
conAlt : TcGroup -> TcFunction -> NamedConAlt
conAlt (MkTcGroup tcIx funs) (MkTcFunction n ix args exp) =
let name = tcContinueName tcIx ix
in MkNConAlt name DATACON (Just ix) args (toTc exp)
recursiveTailCallGroups : SortedMap Name (SortedSet Name) -> List (List Name) where mutual
recursiveTailCallGroups graph = -- this is returned in case we arrived at a result
[forget x | x <-tarjan graph, hasTailCalls x] -- (an expression not corresponding to a recursive
-- call in tail position).
tcDone : NamedCExp -> NamedCExp
tcDone x = NmCon EmptyFC (tcDoneName tcIx) DATACON (Just 0) [x]
-- in case of larger groups (more than one element) -- this is returned in case we arrived at a resursive call
-- the group contains tailcalls by construction. In case -- in tail position. The index indicates the next "function"
-- of a single function, we need to check that at least one -- to call, the list of expressions are the function's
-- outgoing tailcall goes back to the function itself. -- arguments.
where hasTailCalls : List1 Name -> Bool tcContinue : (index : Int) -> List NamedCExp -> NamedCExp
hasTailCalls (x ::: Nil) = x `elem` lookupList x graph tcContinue ix = NmCon EmptyFC (tcContinueName tcIx ix) DATACON (Just ix)
hasTailCalls _ = True
-- extracts the functions belonging to the given tailcall -- recursively converts an expression. Only the `NmApp` case is
-- group from the given imperative statement, thereby removing -- interesting, the rest is pretty much boiler plate.
-- them from the given statement. toTc : NamedCExp -> NamedCExp
extractFunctions : (tailCallGroup : SortedSet Name) toTc (NmLet fc x y z) = NmLet fc x y $ toTc z
-> ImperativeStatement toTc x@(NmApp _ (NmRef _ n) xs) =
-> ( ImperativeStatement case lookup n funs of
, SortedMap Name (FC, List Name, ImperativeStatement) Just v => tcContinue v.index xs
) Nothing => tcDone x
extractFunctions toExtract (SeqStatement x y) = toTc (NmConCase fc sc a d) = NmConCase fc sc (map con a) (map toTc d)
let (xs, xf) = extractFunctions toExtract x toTc (NmConstCase fc sc a d) = NmConstCase fc sc (map const a) (map toTc d)
(ys, yf) = extractFunctions toExtract y toTc x@(NmCrash _ _) = x
in (xs <+> ys, mergeLeft xf yf) toTc x = tcDone x
extractFunctions toExtract f@(FunDecl fc n args body) =
if contains n toExtract then (neutral, insert n (fc, args, body) empty)
else (f, empty)
extractFunctions toExtract x =
(x, empty)
-- lookup a function definition, throwing a compile-time error con : NamedConAlt -> NamedConAlt
-- if none is found con (MkNConAlt x y tag xs z) = MkNConAlt x y tag xs (toTc z)
getDef : SortedMap Name (FC, List Name, ImperativeStatement)
-> Name
-> Core (FC, List Name, ImperativeStatement)
getDef defs n =
case lookup n defs of
Nothing => throw $ (InternalError $ "Can't find function definition in tailRecOptim")
Just x => pure x
makeFusionBranch : Name const : NamedConstAlt -> NamedConstAlt
-> List (Name, Nat) const (MkNConstAlt x y) = MkNConstAlt x (toTc y)
-> (Nat, FC, List Name, ImperativeStatement)
-> (ImperativeExp, ImperativeStatement)
makeFusionBranch fusionName functionsIdx (i, _, args, body) =
let newArgExp = map (\i => IEConstructorArg (cast i) (IEVar fusionArgsName))
[1..length args]
bodyRepArgs = replaceNamesExpS (zip args newArgExp) body
in (IEConstructorTag $ Left $ cast i, replaceExpS rep bodyRepArgs)
where
rep : ImperativeExp -> Maybe ImperativeExp
rep (IEApp (IEVar n) arg_vals) =
case lookup n functionsIdx of
Nothing => Nothing
Just i => Just $ IEApp
(IEVar fusionName)
[IEConstructor (Left $ cast i) arg_vals]
rep _ = Nothing
changeBodyToUseFusion : Name -- Converts a group of mutually tail recursive functions
-> (Nat, Name, FC, List Name, ImperativeStatement) -- to a list of toplevel function declarations. `tailRecLoopName`
-> ImperativeStatement -- is the name of the toplevel function that does the
changeBodyToUseFusion fusionName (i, n, (fc, args, _)) = -- infinite looping (function `__tailRec` in the example at
FunDecl fc n args (ReturnStatement $ IEApp (IEVar fusionName) -- the top of this module).
[IEConstructor (Left $ cast i) (map IEVar args)]) convertTcGroup : (tailRecLoopName : Name) -> TcGroup -> List Function
convertTcGroup loop g@(MkTcGroup gindex fs) =
let functions = sortBy (comparing index) $ values fs
branches = map (conAlt g) functions
switch = NmConCase EmptyFC (local tcArgName) branches Nothing
in MkFunction tcFun [tcArgName] switch :: map toFun functions
tailRecOptimGroup : {auto c : Ref TailRecS TailSt} where tcFun : Name
-> SortedMap Name (FC, List Name, ImperativeStatement) tcFun = tcFunction gindex
-> List Name -> Core ImperativeStatement
tailRecOptimGroup defs [] = pure neutral
tailRecOptimGroup defs [n] =
do (fc, args , body) <- getDef defs n
pure $ FunDecl fc n args (makeTailOptimToBody n args body)
tailRecOptimGroup defs names = local : Name -> NamedCExp
do fusionName <- genName local = NmLocal EmptyFC
d <- traverse (getDef defs) names
let ids = [0..(length names `minus` 1)]
let alts = map (makeFusionBranch fusionName (zip names ids)) (zip ids d)
let fusionBody = SwitchStatement
(IEConstructorHead $ IEVar fusionArgsName)
alts
Nothing
let fusionArgs = [fusionArgsName]
let fusion = FunDecl EmptyFC
fusionName
fusionArgs
(makeTailOptimToBody fusionName fusionArgs fusionBody)
let newFunctions = Prelude.concat $ map
(changeBodyToUseFusion fusionName)
(ids `zip` (names `zip` d))
pure $ fusion <+> newFunctions
||| (Mutual) Tail recursion optimizations: Converts all groups of toFun : TcFunction -> Function
||| mutually tail recursive functions to an imperative loop. toFun (MkTcFunction n ix args x) =
let exps = map local args
tcArg = NmCon EmptyFC (tcContinueName gindex ix)
DATACON (Just ix) exps
tcFun = NmRef EmptyFC tcFun
body = NmApp EmptyFC (NmRef EmptyFC loop) [tcFun,tcArg]
in MkFunction n args body
-- Tail recursion optimizations: Converts all groups of
-- mutually tail recursive functions to an imperative loop.
tailRecOptim : SortedMap Name TcGroup
-> (tcLoopName : Name)
-> List (Name,List Name,NamedCExp)
-> List Function
tailRecOptim groups loop ts =
let regular = mapMaybe toFun ts
tailOpt = concatMap (convertTcGroup loop) $ values groups
in tailOpt ++ regular
where toFun : (Name,List Name,NamedCExp) -> Maybe Function
toFun (n,args,exp) = case lookup n groups of
Just _ => Nothing
Nothing => Just $ MkFunction n args exp
||| Converts a list of toplevel definitions (potentially
||| several groups of mutually tail-recursive functions)
||| to a new set of tail-call optimized function definitions.
||| `MkNmFun`s are converted. Other constructors of `NamedDef`
||| are ignored and silently dropped.
export export
tailRecOptim : ImperativeStatement -> Core ImperativeStatement functions : (tcLoopName : Name)
tailRecOptim x = -> List (Name,FC,NamedDef)
do ref <- newRef TailRecS (MkTailSt 0) -> List Function
let groups = recursiveTailCallGroups (tailCallGraph x) functions loop dfs =
let functionsToOptimize = foldl SortedSet.union empty $ map SortedSet.fromList groups let ts = mapMaybe def dfs
let (unchanged, defs) = extractFunctions functionsToOptimize x in tailRecOptim (tailCallGroups ts) loop ts
optimized <- traverse (tailRecOptimGroup defs) groups where def : (Name,FC,NamedDef) -> Maybe (Name,List Name,NamedCExp)
pure $ unchanged <+> (concat optimized) def (n,_,MkNmFun args x) = Just (n,args,x)
def _ = Nothing

238
src/Compiler/ES/ToAst.idr Normal file
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@ -0,0 +1,238 @@
||| Functionality to convert an Idris `NamedCExp`
||| to a sequence of imperative statements.
module Compiler.ES.ToAst
import Data.DPair
import Data.Nat
import Data.List1
import Data.Vect
import Compiler.Common
import Core.CompileExpr
import Core.Context
import Compiler.ES.Ast
import Compiler.ES.State
import Libraries.Data.SortedMap
--------------------------------------------------------------------------------
-- Converting NamedCExp
--------------------------------------------------------------------------------
-- used to convert data and type constructor tags
tag : Name -> Maybe Int -> Either Int Name
tag n = maybe (Right n) Left
-- creates a single assignment statement.
assign : (e : Effect) -> Exp -> Stmt (Just e)
assign Returns = Return
assign (ErrorWithout v) = Assign v
mutual
getInteger : NamedCExp -> Maybe Integer
getInteger (NmPrimVal _ $ BI x) = Just x
getInteger x = integerArith x
-- this is a local hack to fix #1320 for the JS backend
-- the moste basic sequences of arithmetic `Integer` expressions
-- are evaluated to prevent us from introducing slow
-- cascades of (1n + ...) coming from small `Nat` literals.
integerArith : NamedCExp -> Maybe Integer
integerArith (NmOp _ (Add IntegerType) [x,y]) =
[| getInteger x + getInteger y |]
integerArith (NmOp _ (Mul IntegerType) [x,y]) =
[| getInteger x * getInteger y |]
integerArith _ = Nothing
mutual
-- Converts a `NamedCExp` by calling `stmt` with a
-- newly generated local variable.
-- If the result is a single assignment statement
-- and the given filter function returns a `Just a`,
-- only result `a` is returned.
-- If the result is more complex or the filter returns
-- `Nothing`, the resulting block
-- will be kept and a pointer to the new variable
-- will be returned which can then be used for instance
-- as a function's argument.
lift : { auto c : Ref ESs ESSt }
-> NamedCExp
-> (filter : Exp -> Maybe a)
-> (fromVar : Var -> a)
-> Core (List (Stmt Nothing), a)
lift n filter fromVar = do
l <- nextLocal
b <- stmt (ErrorWithout l) n
let pair = ([declare b], fromVar l)
case b of
-- elaborator needed some help here
Assign _ e => pure $ maybe pair (the (List _) [],) (filter e)
_ => pure pair
-- Convert and lift (if necessary, see comment for `lift`)
-- a function argument. The filter function used to
-- decide whether to keep or lift a function argument
-- comes from the passed `ESSt` state and can therefore
-- vary across backends.
liftArg : { auto c : Ref ESs ESSt }
-> NamedCExp
-> Core (List (Stmt Nothing), Exp)
liftArg x = do
f <- isArg <$> get ESs
lift x (\e => guard (f e) $> e) (EMinimal . MVar)
-- Convert and lift (if necessary, see comment for `lift`)
-- a function expression.
liftFun : { auto c : Ref ESs ESSt }
-> NamedCExp
-> Core (List (Stmt Nothing), Exp)
liftFun x = do
f <- isFun <$> get ESs
lift x (\e => guard (f e) $> e) (EMinimal . MVar)
-- Convert and lift (if necessary, see comment for `liftArg`)
-- a `Vect` of function arguments.
liftArgsVect : { auto c : Ref ESs ESSt }
-> Vect n NamedCExp
-> Core (List (Stmt Nothing), Vect n Exp)
liftArgsVect xs = do
ps <- traverseVect liftArg xs
pure (concatMap fst ps, map snd ps)
-- Convert and lift (if necessary, see comment for `liftArg`)
-- a `List` of function arguments.
liftArgs : { auto c : Ref ESs ESSt }
-> List NamedCExp
-> Core (List (Stmt Nothing), List Exp)
liftArgs xs = do
ps <- traverse liftArg xs
pure (concatMap fst ps, map snd ps)
-- Convert and lift an expression. If the result is
-- not a `Minimal` expression, an additional assignment statement is
-- generated. This is used to lift the scrutinees of
-- constructor case expressions to make sure they are
-- only evluated once (see also PR #1494).
liftMinimal : { auto c : Ref ESs ESSt }
-> NamedCExp
-> Core (List (Stmt Nothing), Minimal)
liftMinimal n = lift n toMinimal MVar
-- creates a (possibly multiargument) lambda.
lambda : {auto c : Ref ESs ESSt} -> Name -> NamedCExp -> Core Exp
lambda n x = go [n] x
where go : List Name -> NamedCExp -> Core Exp
go ns (NmLam _ n x) = go (n :: ns) x
go ns x = do
vs <- traverse registerLocal (reverse ns)
ELam vs <$> stmt Returns x
-- convert a `NamedCExp` to a sequence of statements.
export
stmt : {auto c : Ref ESs ESSt}
-> (e : Effect)
-> NamedCExp
-> Core (Stmt $ Just e)
-- a local name gets registered or resolved
stmt e (NmLocal _ n) = assign e . EMinimal <$> getOrRegisterLocal n
-- a function name gets registered or resolved
stmt e (NmRef _ n) = assign e . EMinimal . MVar <$> getOrRegisterRef n
stmt e (NmLam _ n x) = assign e <$> lambda n x
-- in case of a let expression, we just generate two
-- blocks of statements and concatenate them.
-- We always introduce a new local variable for `n`,
-- since a variable called `n` might be used in both blocks.
stmt e (NmLet _ n y z) = do
v <- nextLocal
b1 <- stmt (ErrorWithout v) y
addLocal n (MVar v)
b2 <- stmt e z
pure $ prepend [declare b1] b2
-- when applying a function, we potentially need to
-- lift both, the function expression itself and the argument
-- list, to the surrounding scope.
stmt e (NmApp _ x xs) = do
(mbx, vx) <- liftFun x
(mbxs, args) <- liftArgs xs
pure . prepend (mbx ++ mbxs) $ assign e (EApp vx args)
stmt e (NmCon _ n ci tg xs) = do
(mbxs, args) <- liftArgs xs
pure . prepend mbxs $ assign e (ECon (tag n tg) ci args)
stmt e o@(NmOp _ x xs) =
case integerArith o of
Just n => pure . assign e $ EPrimVal (BI n)
Nothing => do
(mbxs, args) <- liftArgsVect xs
pure . prepend mbxs $ assign e (EOp x args)
stmt e (NmExtPrim _ n xs) = do
(mbxs, args) <- liftArgs xs
pure . prepend mbxs $ assign e (EExtPrim n args)
stmt e (NmForce _ _ x) = do
(mbx, vx) <- liftFun x
pure . prepend mbx $ assign e (EApp vx [])
stmt e (NmDelay _ _ x) = assign e . ELam [] <$> stmt Returns x
-- No need for a `switch` if we only have a single branch.
-- It's still necessary to lift the scrutinee, however,
-- since its fields might be accessed several times in
-- the implementation of `x`.
stmt e (NmConCase _ sc [x] Nothing) = do
(mbx, vx) <- liftMinimal sc
b <- body <$> conAlt e vx x
pure $ prepend mbx b
-- No need for a `switch` statement if we only have
-- a `default` branch.
stmt e (NmConCase _ _ [] (Just x)) = stmt e x
-- Create a `switch` statement from a pattern match
-- on constructors. The scrutinee is lifted to the
-- surrounding scope and memoized if necessary.
stmt e (NmConCase _ sc xs x) = do
(mbx, vx) <- liftMinimal sc
alts <- traverse (conAlt e vx) xs
def <- traverseOpt (stmt e) x
pure . prepend mbx $ ConSwitch e vx alts def
-- Pattern matches on constants behave very similar
-- to the ones on constructors.
stmt e (NmConstCase _ _ [x] Nothing) = body <$> constAlt e x
stmt e (NmConstCase _ _ [] (Just x)) = stmt e x
stmt e (NmConstCase _ sc xs x) = do
(mbx, ex) <- liftArg sc
alts <- traverse (constAlt e) xs
def <- traverseOpt (stmt e) x
pure . prepend mbx $ ConstSwitch e ex alts def
stmt e (NmPrimVal _ x) = pure . assign e $ EPrimVal x
stmt e (NmErased _) = pure . assign e $ EErased
stmt _ (NmCrash _ x) = pure $ Error x
-- a single branch in a pattern match on constructors
conAlt : { auto c : Ref ESs ESSt }
-> (e : Effect)
-> (scrutinee : Minimal)
-> NamedConAlt
-> Core (EConAlt e)
conAlt e sc (MkNConAlt n ci tg args x) = do
-- We map the list of args to the corresponding
-- data projections (field accessors). They'll
-- be then properly inlined when converting `x`.
projections sc args
MkEConAlt (tag n tg) ci <$> stmt e x
-- a single branch in a pattern match on a constant
constAlt : { auto c : Ref ESs ESSt }
-> (e : Effect)
-> NamedConstAlt
-> Core (EConstAlt e)
constAlt e (MkNConstAlt c x) = MkEConstAlt c <$> stmt e x

186
support/js/support.js Normal file
View File

@ -0,0 +1,186 @@
class IdrisError extends Error { }
function __prim_js2idris_array(x){
if(x.length === 0){
return {h:0}
} else {
return {a1:x[0],a2: __prim_js2idris_array(x.slice(1))}
}
}
function __prim_idris2js_array(x){
const result = Array();
while (x.h === undefined) {
result.push(x.a1); x = x.a2;
}
return result;
}
function __prim_stringIteratorNew(str) {
return 0
}
function __prim_stringIteratorToString(_, str, it, f) {
return f(str.slice(it))
}
function __prim_stringIteratorNext(str, it) {
if (it >= str.length)
return {h: 0};
else
return {a1: str.charAt(it), a2: it + 1};
}
function __tailRec(f,ini) {
let obj = ini;
while(true){
switch(obj.h){
case 0: return obj.a1;
default: obj = f(obj);
}
}
}
const _idrisworld = Symbol('idrisworld')
const _crashExp = x=>{throw new IdrisError(x)}
const _sysos =
((o => o === 'linux'?'unix':o==='win32'?'windows':o)(require('os').platform()));
const _bigIntOfString = s=>{
const idx = s.indexOf('.')
return idx === -1 ? BigInt(s) : BigInt(s.slice(0, idx))
}
const _truncToChar = x=> String.fromCodePoint(
(x >= 0 && x <= 55295) || (x >= 57344 && x <= 1114111) ? x : 0
)
// Int8
const _truncInt8 = x => {
const res = x & 0xff;
return res >= 0x80 ? res - 0x100 : res;
}
const _truncBigInt8 = x => {
const res = Number(x & 0xffn);
return res >= 0x80 ? res - 0x100 : res;
}
const _add8s = (a,b) => _truncInt8(a + b)
const _sub8s = (a,b) => _truncInt8(a - b)
const _mul8s = (a,b) => _truncInt8(a * b)
const _div8s = (a,b) => _truncInt8(Math.trunc(a / b))
const _shl8s = (a,b) => _truncInt8(a << b)
const _shr8s = (a,b) => _truncInt8(a >> b)
// Int16
const _truncInt16 = x => {
const res = x & 0xffff;
return res >= 0x8000 ? res - 0x10000 : res;
}
const _truncBigInt16 = x => {
const res = Number(x & 0xffffn);
return res >= 0x8000 ? res - 0x10000 : res;
}
const _add16s = (a,b) => _truncInt16(a + b)
const _sub16s = (a,b) => _truncInt16(a - b)
const _mul16s = (a,b) => _truncInt16(a * b)
const _div16s = (a,b) => _truncInt16(Math.trunc(a / b))
const _shl16s = (a,b) => _truncInt16(a << b)
const _shr16s = (a,b) => _truncInt16(a >> b)
//Int32
const _truncInt32 = x => x & 0xffffffff
const _truncBigInt32 = x => {
const res = Number(x & 0xffffffffn);
return res >= 0x80000000 ? res - 0x100000000 : res;
}
const _add32s = (a,b) => _truncInt32(a + b)
const _sub32s = (a,b) => _truncInt32(a - b)
const _div32s = (a,b) => _truncInt32(Math.trunc(a / b))
const _mul32s = (a,b) => {
const res = a * b;
if (res <= Number.MIN_SAFE_INTEGER || res >= Number.MAX_SAFE_INTEGER) {
return _truncInt32((a & 0xffff) * b + (b & 0xffff) * (a & 0xffff0000))
} else {
return _truncInt32(res)
}
}
//Int64
const _truncBigInt64 = x => {
const res = x & 0xffffffffffffffffn;
return res >= 0x8000000000000000n ? res - 0x10000000000000000n : res;
}
const _add64s = (a,b) => _truncBigInt64(a + b)
const _sub64s = (a,b) => _truncBigInt64(a - b)
const _mul64s = (a,b) => _truncBigInt64(a * b)
const _div64s = (a,b) => _truncBigInt64(a / b)
const _shl64s = (a,b) => _truncBigInt64(a << b)
const _shr64s = (a,b) => _truncBigInt64(a >> b)
//Bits8
const _truncUInt8 = x => x & 0xff
const _truncUBigInt8 = x => Number(x & 0xffn)
const _add8u = (a,b) => (a + b) & 0xff
const _sub8u = (a,b) => (a - b) & 0xff
const _mul8u = (a,b) => (a * b) & 0xff
const _div8u = (a,b) => Math.trunc(a / b)
const _shl8u = (a,b) => (a << b) & 0xff
const _shr8u = (a,b) => (a >> b) & 0xff
//Bits16
const _truncUInt16 = x => x & 0xffff
const _truncUBigInt16 = x => Number(x & 0xffffn)
const _add16u = (a,b) => (a + b) & 0xffff
const _sub16u = (a,b) => (a - b) & 0xffff
const _mul16u = (a,b) => (a * b) & 0xffff
const _div16u = (a,b) => Math.trunc(a / b)
const _shl16u = (a,b) => (a << b) & 0xffff
const _shr16u = (a,b) => (a >> b) & 0xffff
//Bits32
const _truncUBigInt32 = x => Number(x & 0xffffffffn)
const _truncUInt32 = x => {
const res = x & -1;
return res < 0 ? res + 0x100000000 : res;
}
const _add32u = (a,b) => _truncUInt32(a + b)
const _sub32u = (a,b) => _truncUInt32(a - b)
const _mul32u = (a,b) => _truncUInt32(_mul32s(a,b))
const _div32u = (a,b) => Math.trunc(a / b)
const _shl32u = (a,b) => _truncUInt32(a << b)
const _shr32u = (a,b) => _truncUInt32(a <= 0x7fffffff ? a >> b : (b == 0 ? a : (a >> b) ^ ((-0x80000000) >> (b-1))))
const _and32u = (a,b) => _truncUInt32(a & b)
const _or32u = (a,b) => _truncUInt32(a | b)
const _xor32u = (a,b) => _truncUInt32(a ^ b)
//Bits64
const _truncUBigInt64 = x => x & 0xffffffffffffffffn
const _add64u = (a,b) => (a + b) & 0xffffffffffffffffn
const _mul64u = (a,b) => (a * b) & 0xffffffffffffffffn
const _div64u = (a,b) => a / b
const _shl64u = (a,b) => (a << b) & 0xffffffffffffffffn
const _shr64u = (a,b) => (a >> b) & 0xffffffffffffffffn
const _sub64u = (a,b) => (a - b) & 0xffffffffffffffffn
//String
const _strReverse = x => x.split('').reverse().join('')
const _substr = (o,l,x) => x.slice(o, o + l)

8
support/js/support_system_directory.js
View File

@ -3,19 +3,19 @@ const support_system_directory_fs = require("fs");
function support_system_directory_changeDir(d){ function support_system_directory_changeDir(d){
try{ try{
process.chdir(d); process.chdir(d);
return 0n return 0
}catch(e){ }catch(e){
process.__lasterr = e; process.__lasterr = e;
return 1n return 1
} }
} }
function support_system_directory_createDir(d){ function support_system_directory_createDir(d){
try{ try{
support_system_directory_fs.mkdirSync(d) support_system_directory_fs.mkdirSync(d)
return 0n return 0
}catch(e){ }catch(e){
process.__lasterr = e; process.__lasterr = e;
return 1n return 1
} }
} }

22
support/js/support_system_file.js
View File

@ -2,18 +2,18 @@ const support_system_file_fs = require('fs')
function support_system_file_fileErrno(){ function support_system_file_fileErrno(){
const n = process.__lasterr.errno || 0 const n = process.__lasterr===undefined?0:process.__lasterr.errno || 0
if (process.platform == 'win32') { if (process.platform == 'win32') {
// TODO: Add the error codes for the other errors // TODO: Add the error codes for the other errors
switch(n) { switch(n) {
case -4058: return 2n case -4058: return 2
case -4075: return 4n case -4075: return 4
default: return -BigInt(n) default: return -n
} }
} else { } else {
switch(n){ switch(n){
case -17: return 4n case -17: return 4
default: return -BigInt(n) default: return -n
} }
} }
} }
@ -29,13 +29,13 @@ function support_system_file_seekLine (file_ptr) {
if (bytesRead === 0) { if (bytesRead === 0) {
file_ptr.eof = true file_ptr.eof = true
file_ptr.buffer = Buffer.alloc(0) file_ptr.buffer = Buffer.alloc(0)
return 0n return 0
} }
file_ptr.buffer = Buffer.concat([file_ptr.buffer, readBuf.slice(0, bytesRead)]) file_ptr.buffer = Buffer.concat([file_ptr.buffer, readBuf.slice(0, bytesRead)])
lineEnd = file_ptr.buffer.indexOf(LF) lineEnd = file_ptr.buffer.indexOf(LF)
} }
file_ptr.buffer = file_ptr.buffer.slice(lineEnd + 1) file_ptr.buffer = file_ptr.buffer.slice(lineEnd + 1)
return 0n return 0
} }
function support_system_file_readLine (file_ptr) { function support_system_file_readLine (file_ptr) {
@ -74,10 +74,10 @@ function support_system_file_openFile (n, m) {
function support_system_file_chmod (filename, mode) { function support_system_file_chmod (filename, mode) {
try { try {
support_system_file_fs.chmodSync(filename, Number(mode)) support_system_file_fs.chmodSync(filename, mode)
return 0n return 0
} catch (e) { } catch (e) {
process.__lasterr = e process.__lasterr = e
return 1n return 1
} }
} }

30
tests/node/casts/Casts.idr
View File

@ -156,7 +156,7 @@ results = testCasts Int8 Int16 [(-129,127),(-128,-128),(0,0),(127,127),(128,-
++ testCasts Int64 Int8 [(-9223372036854775809,9223372036854775807),(-9223372036854775808,0),(0,0),(9223372036854775807,-1),(9223372036854775808,0)] ++ testCasts Int64 Int8 [(-9223372036854775809,9223372036854775807),(-9223372036854775808,0),(0,0),(9223372036854775807,-1),(9223372036854775808,0)]
++ testCasts Int64 Int16 [(-9223372036854775809,9223372036854775807),(-9223372036854775808,0),(0,0),(9223372036854775807,-1),(9223372036854775808,0)] ++ testCasts Int64 Int16 [(-9223372036854775809,9223372036854775807),(-9223372036854775808,0),(0,0),(9223372036854775807,-1),(9223372036854775808,0)]
++ testCasts Int64 Int32 [(-9223372036854775809,9223372036854775807),(-9223372036854775808,0),(0,0),(9223372036854775807,-1),(9223372036854775808,0)] ++ testCasts Int64 Int32 [(-9223372036854775809,9223372036854775807),(-9223372036854775808,0),(0,0),(9223372036854775807,-1),(9223372036854775808,0)]
++ testCasts Int64 Int [(-9223372036854775809,9223372036854775807),(-9223372036854775808,-9223372036854775808),(0,0),(9223372036854775807,9223372036854775807),(9223372036854775808,-9223372036854775808)] ++ testCasts Int64 Int [(-9223372036854775809,9223372036854775807),(-9223372036854775808,0),(0,0),(9223372036854775807,-1),(9223372036854775808,0)]
++ testCasts Int64 Double [(-9223372036854775809,9223372036854775807),(-9223372036854775808,-9223372036854775808),(0,0),(9223372036854775807,9223372036854775807),(9223372036854775808,-9223372036854775808)] ++ testCasts Int64 Double [(-9223372036854775809,9223372036854775807),(-9223372036854775808,-9223372036854775808),(0,0),(9223372036854775807,9223372036854775807),(9223372036854775808,-9223372036854775808)]
++ testCasts Int64 String [(-9223372036854775809,"9223372036854775807"),(-9223372036854775808,"-9223372036854775808"),(0,"0"),(9223372036854775807,"9223372036854775807"),(9223372036854775808,"-9223372036854775808")] ++ testCasts Int64 String [(-9223372036854775809,"9223372036854775807"),(-9223372036854775808,"-9223372036854775808"),(0,"0"),(9223372036854775807,"9223372036854775807"),(9223372036854775808,"-9223372036854775808")]
++ testCasts Int64 Integer [(-9223372036854775809,9223372036854775807),(-9223372036854775808,-9223372036854775808),(0,0),(9223372036854775807,9223372036854775807),(9223372036854775808,-9223372036854775808)] ++ testCasts Int64 Integer [(-9223372036854775809,9223372036854775807),(-9223372036854775808,-9223372036854775808),(0,0),(9223372036854775807,9223372036854775807),(9223372036854775808,-9223372036854775808)]
@ -165,17 +165,17 @@ results = testCasts Int8 Int16 [(-129,127),(-128,-128),(0,0),(127,127),(128,-
++ testCasts Int64 Bits32 [(-9223372036854775809,4294967295),(0,0),(9223372036854775807,0xffffffff),(9223372036854775808,0)] ++ testCasts Int64 Bits32 [(-9223372036854775809,4294967295),(0,0),(9223372036854775807,0xffffffff),(9223372036854775808,0)]
++ testCasts Int64 Bits64 [(-9223372036854775809,9223372036854775807),(0,0),(9223372036854775807,9223372036854775807),(9223372036854775808,-9223372036854775808)] ++ testCasts Int64 Bits64 [(-9223372036854775809,9223372036854775807),(0,0),(9223372036854775807,9223372036854775807),(9223372036854775808,-9223372036854775808)]
++ testCasts Int Int8 [(-9223372036854775809,9223372036854775807),(-9223372036854775808,0),(0,0),(9223372036854775807,-1),(9223372036854775808,0)] ++ testCasts Int Int8 [(-2147483649,2147483647),(-2147483648,0),(0,0),(2147483647,-1),(2147483648,0)]
++ testCasts Int Int16 [(-9223372036854775809,9223372036854775807),(-9223372036854775808,0),(0,0),(9223372036854775807,-1),(9223372036854775808,0)] ++ testCasts Int Int16 [(-2147483649,2147483647),(-2147483648,0),(0,0),(2147483647,-1),(2147483648,0)]
++ testCasts Int Int32 [(-9223372036854775809,9223372036854775807),(-9223372036854775808,0),(0,0),(9223372036854775807,-1),(9223372036854775808,0)] ++ testCasts Int Int64 [(-2147483649,2147483647),(-2147483648,-2147483648),(0,0),(2147483647,2147483647),(2147483648,-2147483648)]
++ testCasts Int Int64 [(-9223372036854775809,9223372036854775807),(-9223372036854775808,-9223372036854775808),(0,0),(9223372036854775807,9223372036854775807),(9223372036854775808,-9223372036854775808)] ++ testCasts Int Int32 [(-2147483649,2147483647),(-2147483648,-2147483648),(0,0),(2147483647,2147483647),(2147483648,-2147483648)]
++ testCasts Int Double [(-9223372036854775809,9223372036854775807),(-9223372036854775808,-9223372036854775808),(0,0),(9223372036854775807,9223372036854775807),(9223372036854775808,-9223372036854775808)] ++ testCasts Int Double [(-2147483649,2147483647),(-2147483648,-2147483648),(0,0),(2147483647,2147483647),(2147483648,-2147483648)]
++ testCasts Int String [(-9223372036854775809,"9223372036854775807"),(-9223372036854775808,"-9223372036854775808"),(0,"0"),(9223372036854775807,"9223372036854775807"),(9223372036854775808,"-9223372036854775808")] ++ testCasts Int String [(-2147483649,"2147483647"),(-2147483648,"-2147483648"),(0,"0"),(2147483647,"2147483647"),(2147483648,"-2147483648")]
++ testCasts Int Integer [(-9223372036854775809,9223372036854775807),(-9223372036854775808,-9223372036854775808),(0,0),(9223372036854775807,9223372036854775807),(9223372036854775808,-9223372036854775808)] ++ testCasts Int Integer [(-2147483649,2147483647),(-2147483648,-2147483648),(0,0),(2147483647,2147483647),(2147483648,-2147483648)]
++ testCasts Int Bits8 [(-9223372036854775809,255),(0,0),(9223372036854775807,0xff),(9223372036854775808,0)] ++ testCasts Int Bits8 [(-2147483649,2147483647),(0,0),(2147483647,2147483647),(2147483648,-2147483648)]
++ testCasts Int Bits16 [(-9223372036854775809,65535),(0,0),(9223372036854775807,0xffff),(9223372036854775808,0)] ++ testCasts Int Bits16 [(-2147483649,2147483647),(0,0),(2147483647,2147483647),(2147483648,-2147483648)]
++ testCasts Int Bits32 [(-9223372036854775809,4294967295),(0,0),(9223372036854775807,0xffffffff),(9223372036854775808,0)] ++ testCasts Int Bits32 [(-2147483649,2147483647),(0,0),(2147483647,2147483647),(2147483648,-2147483648)]
++ testCasts Int Bits64 [(-9223372036854775809,9223372036854775807),(0,0),(9223372036854775807,9223372036854775807),(9223372036854775808,-9223372036854775808)] ++ testCasts Int Bits64 [(-2147483649,2147483647),(0,0),(2147483647,2147483647),(2147483648,-2147483648)]
++ testCasts Integer Int8 [(-170141183460469231731687303715884105729,-1),(-170141183460469231731687303715884105728,0),(0,0),(170141183460469231731687303715884105727,-1),(170141183460469231731687303715884105728,0)] ++ testCasts Integer Int8 [(-170141183460469231731687303715884105729,-1),(-170141183460469231731687303715884105728,0),(0,0),(170141183460469231731687303715884105727,-1),(170141183460469231731687303715884105728,0)]
++ testCasts Integer Int16 [(-170141183460469231731687303715884105729,-1),(-170141183460469231731687303715884105728,0),(0,0),(170141183460469231731687303715884105727,-1),(170141183460469231731687303715884105728,0)] ++ testCasts Integer Int16 [(-170141183460469231731687303715884105729,-1),(-170141183460469231731687303715884105728,0),(0,0),(170141183460469231731687303715884105727,-1),(170141183460469231731687303715884105728,0)]
@ -216,7 +216,7 @@ results = testCasts Int8 Int16 [(-129,127),(-128,-128),(0,0),(127,127),(128,-
++ testCasts Bits32 Int16 [(0,0),(0xffffffff,-1),(0x100000000,0)] ++ testCasts Bits32 Int16 [(0,0),(0xffffffff,-1),(0x100000000,0)]
++ testCasts Bits32 Int32 [(0,0),(0xffffffff,-1),(0x100000000,0)] ++ testCasts Bits32 Int32 [(0,0),(0xffffffff,-1),(0x100000000,0)]
++ testCasts Bits32 Int64 [(0,0),(0xffffffff,0xffffffff),(0x100000000,0)] ++ testCasts Bits32 Int64 [(0,0),(0xffffffff,0xffffffff),(0x100000000,0)]
++ testCasts Bits32 Int [(0,0),(0xffffffff,0xffffffff),(0x100000000,0)] ++ testCasts Bits32 Int [(0,0),(0xffffffff,-1),(0x100000000,0)]
++ testCasts Bits32 Double [(0,0),(0xffffffff,0xffffffff),(0x100000000,0)] ++ testCasts Bits32 Double [(0,0),(0xffffffff,0xffffffff),(0x100000000,0)]
++ testCasts Bits32 String [(0,"0"),(0xffffffff,"4294967295"),(0x100000000,"0")] ++ testCasts Bits32 String [(0,"0"),(0xffffffff,"4294967295"),(0x100000000,"0")]
++ testCasts Bits32 Integer [(0,0),(0xffffffff,0xffffffff),(0x100000000,0)] ++ testCasts Bits32 Integer [(0,0),(0xffffffff,0xffffffff),(0x100000000,0)]
@ -240,7 +240,7 @@ results = testCasts Int8 Int16 [(-129,127),(-128,-128),(0,0),(127,127),(128,-
++ testCasts String Int16 [("-32769",32767),("-32768",-32768),("0",0),("32767",32767), ("32768",-32768)] ++ testCasts String Int16 [("-32769",32767),("-32768",-32768),("0",0),("32767",32767), ("32768",-32768)]
++ testCasts String Int32 [("-2147483649",2147483647),("-2147483648",-2147483648),("0",0),("2147483647",2147483647), ("2147483648",-2147483648)] ++ testCasts String Int32 [("-2147483649",2147483647),("-2147483648",-2147483648),("0",0),("2147483647",2147483647), ("2147483648",-2147483648)]
++ testCasts String Int64 [("-9223372036854775809",9223372036854775807),("-9223372036854775808",-9223372036854775808),("0",0),("9223372036854775807",9223372036854775807), ("9223372036854775808",-9223372036854775808)] ++ testCasts String Int64 [("-9223372036854775809",9223372036854775807),("-9223372036854775808",-9223372036854775808),("0",0),("9223372036854775807",9223372036854775807), ("9223372036854775808",-9223372036854775808)]
++ testCasts String Int [("-9223372036854775809",9223372036854775807),("-9223372036854775808",-9223372036854775808),("0",0),("9223372036854775807",9223372036854775807), ("9223372036854775808",-9223372036854775808)] ++ testCasts String Int [("-2147483649",2147483647),("-2147483648",-2147483648),("0",0),("2147483647",2147483647), ("2147483648",-2147483648)]
++ testCasts String Integer [("-170141183460469231731687303715884105728",-170141183460469231731687303715884105728),("-170141183460469231731687303715884105728",-170141183460469231731687303715884105728),("0",0),("170141183460469231731687303715884105728",170141183460469231731687303715884105728)] ++ testCasts String Integer [("-170141183460469231731687303715884105728",-170141183460469231731687303715884105728),("-170141183460469231731687303715884105728",-170141183460469231731687303715884105728),("0",0),("170141183460469231731687303715884105728",170141183460469231731687303715884105728)]
++ testCasts String Bits8 [("0",0),("255",255), ("256",0)] ++ testCasts String Bits8 [("0",0),("255",255), ("256",0)]
++ testCasts String Bits16 [("0",0),("65535",65535), ("65536",0)] ++ testCasts String Bits16 [("0",0),("65535",65535), ("65536",0)]
@ -251,7 +251,7 @@ results = testCasts Int8 Int16 [(-129,127),(-128,-128),(0,0),(127,127),(128,-
++ testCasts Double Int16 [(-32769.0, 32767),(-32768.0,-32768),(-12.001,-12),(12.001,12),(32767.0,32767),(32768.0,-32768)] ++ testCasts Double Int16 [(-32769.0, 32767),(-32768.0,-32768),(-12.001,-12),(12.001,12),(32767.0,32767),(32768.0,-32768)]
++ testCasts Double Int32 [(-2147483649.0,2147483647),(-2147483648.0,-2147483648),(-12.001,-12),(12.001,12),(2147483647.0,2147483647),(2147483648.0,-2147483648)] ++ testCasts Double Int32 [(-2147483649.0,2147483647),(-2147483648.0,-2147483648),(-12.001,-12),(12.001,12),(2147483647.0,2147483647),(2147483648.0,-2147483648)]
++ testCasts Double Int64 [(-9223372036854775808.0,-9223372036854775808),(-12.001,-12),(12.001,12),(9223372036854775808.0,-9223372036854775808)] ++ testCasts Double Int64 [(-9223372036854775808.0,-9223372036854775808),(-12.001,-12),(12.001,12),(9223372036854775808.0,-9223372036854775808)]
++ testCasts Double Int [(-9223372036854775808.0,-9223372036854775808),(-12.001,-12),(12.001,12),(9223372036854775808.0,-9223372036854775808)] ++ testCasts Double Int [(-2147483649.0,2147483647),(-2147483648.0,-2147483648),(-12.001,-12),(12.001,12),(2147483647.0,2147483647),(2147483648.0,-2147483648)]
++ testCasts Double Bits8 [(0.0,0),(255.0,255), (256.0,0)] ++ testCasts Double Bits8 [(0.0,0),(255.0,255), (256.0,0)]
++ testCasts Double Bits16 [(0.0,0),(65535.0,65535), (65536.0,0)] ++ testCasts Double Bits16 [(0.0,0),(65535.0,65535), (65536.0,0)]
++ testCasts Double Bits32 [(0.0,0),(4294967295.0,4294967295), (4294967296.0,0)] ++ testCasts Double Bits32 [(0.0,0),(4294967295.0,4294967295), (4294967296.0,0)]

6
tests/node/integers/TestIntegers.idr
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@ -75,9 +75,9 @@ main = do
the Int64 $ -9223372036854775808, -- Int64 min the Int64 $ -9223372036854775808, -- Int64 min
the Int64 1000000000000000000, the Int64 1000000000000000000,
the Int64 9223372036854775807, -- Int64 max the Int64 9223372036854775807, -- Int64 max
the Int $ -9223372036854775808, -- Int min the Int $ -2147483648, -- Int min
the Int 1000000000000000000, the Int 500000000,
the Int 9223372036854775807, -- Int max the Int 2147483647, -- Int max
the Integer $ -9223372036854775809, -- Int min - 1 the Integer $ -9223372036854775809, -- Int min - 1
the Integer 0, the Integer 0,
the Integer 9223372036854775808 -- Int max + 1 the Integer 9223372036854775808 -- Int max + 1

28
tests/node/integers/expected
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@ -1,32 +1,32 @@
Cast to String: Cast to String:
[0, 50, 255, 0, 10000, 65535, 0, 1000000000, 4294967295, 0, 5000000000000000000, 18446744073709551615, -128, 50, 127, -32768, 10000, 32767, -2147483648, 500000000, 2147483647, -9223372036854775808, 1000000000000000000, 9223372036854775807, -9223372036854775808, 1000000000000000000, 9223372036854775807, -9223372036854775809, 0, 9223372036854775808] [0, 50, 255, 0, 10000, 65535, 0, 1000000000, 4294967295, 0, 5000000000000000000, 18446744073709551615, -128, 50, 127, -32768, 10000, 32767, -2147483648, 500000000, 2147483647, -9223372036854775808, 1000000000000000000, 9223372036854775807, -2147483648, 500000000, 2147483647, -9223372036854775809, 0, 9223372036854775808]
Cast to Bits8: Cast to Bits8:
[0, 50, 255, 0, 16, 255, 0, 0, 255, 0, 0, 255, 128, 50, 127, 0, 16, 255, 0, 0, 255, 0, 0, 255, 0, 0, 255, 255, 0, 0] [0, 50, 255, 0, 16, 255, 0, 0, 255, 0, 0, 255, 128, 50, 127, 0, 16, 255, 0, 0, 255, 0, 0, 255, 0, 0, 255, 255, 0, 0]
Cast to Bits16: Cast to Bits16:
[0, 50, 255, 0, 10000, 65535, 0, 51712, 65535, 0, 0, 65535, 65408, 50, 127, 32768, 10000, 32767, 0, 25856, 65535, 0, 0, 65535, 0, 0, 65535, 65535, 0, 0] [0, 50, 255, 0, 10000, 65535, 0, 51712, 65535, 0, 0, 65535, 65408, 50, 127, 32768, 10000, 32767, 0, 25856, 65535, 0, 0, 65535, 0, 25856, 65535, 65535, 0, 0]
Cast to Bits32: Cast to Bits32:
[0, 50, 255, 0, 10000, 65535, 0, 1000000000, 4294967295, 0, 1156841472, 4294967295, 4294967168, 50, 127, 4294934528, 10000, 32767, 2147483648, 500000000, 2147483647, 0, 2808348672, 4294967295, 0, 2808348672, 4294967295, 4294967295, 0, 0] [0, 50, 255, 0, 10000, 65535, 0, 1000000000, 4294967295, 0, 1156841472, 4294967295, 4294967168, 50, 127, 4294934528, 10000, 32767, 2147483648, 500000000, 2147483647, 0, 2808348672, 4294967295, 2147483648, 500000000, 2147483647, 4294967295, 0, 0]
Cast to Bits64: Cast to Bits64:
[0, 50, 255, 0, 10000, 65535, 0, 1000000000, 4294967295, 0, 5000000000000000000, 18446744073709551615, 18446744073709551488, 50, 127, 18446744073709518848, 10000, 32767, 18446744071562067968, 500000000, 2147483647, 9223372036854775808, 1000000000000000000, 9223372036854775807, 9223372036854775808, 1000000000000000000, 9223372036854775807, 9223372036854775807, 0, 9223372036854775808] [0, 50, 255, 0, 10000, 65535, 0, 1000000000, 4294967295, 0, 5000000000000000000, 18446744073709551615, 18446744073709551488, 50, 127, 18446744073709518848, 10000, 32767, 18446744071562067968, 500000000, 2147483647, 9223372036854775808, 1000000000000000000, 9223372036854775807, 18446744071562067968, 500000000, 2147483647, 9223372036854775807, 0, 9223372036854775808]
Cast to Int: Cast to Int:
[0, 50, 255, 0, 10000, 65535, 0, 1000000000, 4294967295, 0, 5000000000000000000, -1, -128, 50, 127, -32768, 10000, 32767, -2147483648, 500000000, 2147483647, -9223372036854775808, 1000000000000000000, 9223372036854775807, -9223372036854775808, 1000000000000000000, 9223372036854775807, 9223372036854775807, 0, -9223372036854775808] [0, 50, 255, 0, 10000, 65535, 0, 1000000000, -1, 0, 1156841472, -1, -128, 50, 127, -32768, 10000, 32767, -2147483648, 500000000, 2147483647, 0, -1486618624, -1, -2147483648, 500000000, 2147483647, -1, 0, 0]
Cast to Integer: Cast to Integer:
[0, 50, 255, 0, 10000, 65535, 0, 1000000000, 4294967295, 0, 5000000000000000000, 18446744073709551615, -128, 50, 127, -32768, 10000, 32767, -2147483648, 500000000, 2147483647, -9223372036854775808, 1000000000000000000, 9223372036854775807, -9223372036854775808, 1000000000000000000, 9223372036854775807, -9223372036854775809, 0, 9223372036854775808] [0, 50, 255, 0, 10000, 65535, 0, 1000000000, 4294967295, 0, 5000000000000000000, 18446744073709551615, -128, 50, 127, -32768, 10000, 32767, -2147483648, 500000000, 2147483647, -9223372036854775808, 1000000000000000000, 9223372036854775807, -2147483648, 500000000, 2147483647, -9223372036854775809, 0, 9223372036854775808]
Add: Add:
[1, 51, 0, 1, 10001, 0, 1, 1000000001, 0, 1, 5000000000000000001, 0, -127, 51, -128, -32767, 10001, -32768, -2147483647, 500000001, -2147483648, -9223372036854775807, 1000000000000000001, -9223372036854775808, -9223372036854775807, 1000000000000000001, -9223372036854775808, -9223372036854775808, 1, 9223372036854775809] [1, 51, 0, 1, 10001, 0, 1, 1000000001, 0, 1, 5000000000000000001, 0, -127, 51, -128, -32767, 10001, -32768, -2147483647, 500000001, -2147483648, -9223372036854775807, 1000000000000000001, -9223372036854775808, -2147483647, 500000001, -2147483648, -9223372036854775808, 1, 9223372036854775809]
Subtract: Subtract:
[255, 49, 254, 65535, 9999, 65534, 4294967295, 999999999, 4294967294, 18446744073709551615, 4999999999999999999, 18446744073709551614, 127, 49, 126, 32767, 9999, 32766, 2147483647, 499999999, 2147483646, 9223372036854775807, 999999999999999999, 9223372036854775806, 9223372036854775807, 999999999999999999, 9223372036854775806, -9223372036854775810, -1, 9223372036854775807] [255, 49, 254, 65535, 9999, 65534, 4294967295, 999999999, 4294967294, 18446744073709551615, 4999999999999999999, 18446744073709551614, 127, 49, 126, 32767, 9999, 32766, 2147483647, 499999999, 2147483646, 9223372036854775807, 999999999999999999, 9223372036854775806, 2147483647, 499999999, 2147483646, -9223372036854775810, -1, 9223372036854775807]
Negate: Negate:
[0, 206, 1, 0, 55536, 1, 0, 3294967296, 1, 0, 13446744073709551616, 1, -128, -50, -127, -32768, -10000, -32767, -2147483648, -500000000, -2147483647, -9223372036854775808, -1000000000000000000, -9223372036854775807, -9223372036854775808, -1000000000000000000, -9223372036854775807, 9223372036854775809, 0, -9223372036854775808] [0, 206, 1, 0, 55536, 1, 0, 3294967296, 1, 0, 13446744073709551616, 1, -128, -50, -127, -32768, -10000, -32767, -2147483648, -500000000, -2147483647, -9223372036854775808, -1000000000000000000, -9223372036854775807, -2147483648, -500000000, -2147483647, 9223372036854775809, 0, -9223372036854775808]
Multiply: Multiply:
[0, 100, 254, 0, 20000, 65534, 0, 2000000000, 4294967294, 0, 10000000000000000000, 18446744073709551614, 0, 100, -2, 0, 20000, -2, 0, 1000000000, -2, 0, 2000000000000000000, -2, 0, 2000000000000000000, -2, -18446744073709551618, 0, 18446744073709551616] [0, 100, 254, 0, 20000, 65534, 0, 2000000000, 4294967294, 0, 10000000000000000000, 18446744073709551614, 0, 100, -2, 0, 20000, -2, 0, 1000000000, -2, 0, 2000000000000000000, -2, 0, 1000000000, -2, -18446744073709551618, 0, 18446744073709551616]
Shift: Shift:
[0, 100, 254, 0, 20000, 65534, 0, 2000000000, 4294967294, 0, 10000000000000000000, 18446744073709551614, 0, 100, -2, 0, 20000, -2, 0, 1000000000, -2, 0, 2000000000000000000, -2, 0, 2000000000000000000, -2, -18446744073709551618, 0, 18446744073709551616] [0, 100, 254, 0, 20000, 65534, 0, 2000000000, 4294967294, 0, 10000000000000000000, 18446744073709551614, 0, 100, -2, 0, 20000, -2, 0, 1000000000, -2, 0, 2000000000000000000, -2, 0, 1000000000, -2, -18446744073709551618, 0, 18446744073709551616]
[0, 25, 127, 0, 5000, 32767, 0, 500000000, 2147483647, 0, 2500000000000000000, 9223372036854775807, -64, 25, 63, -16384, 5000, 16383, -1073741824, 250000000, 1073741823, -4611686018427387904, 500000000000000000, 4611686018427387903, -4611686018427387904, 500000000000000000, 4611686018427387903, -4611686018427387905, 0, 4611686018427387904] [0, 25, 127, 0, 5000, 32767, 0, 500000000, 2147483647, 0, 2500000000000000000, 9223372036854775807, -64, 25, 63, -16384, 5000, 16383, -1073741824, 250000000, 1073741823, -4611686018427387904, 500000000000000000, 4611686018427387903, -1073741824, 250000000, 1073741823, -4611686018427387905, 0, 4611686018427387904]
Bit Ops: Bit Ops:
[0, 34, 170, 0, 0, 170, 0, 0, 170, 0, 0, 170, -128, 34, 42, 0, 0, 170, 0, 0, 170, 0, 0, 170, 0, 0, 170, 170, 0, 0] [0, 34, 170, 0, 0, 170, 0, 0, 170, 0, 0, 170, -128, 34, 42, 0, 0, 170, 0, 0, 170, 0, 0, 170, 0, 0, 170, 170, 0, 0]
[170, 186, 255, 170, 10170, 65535, 170, 1000000170, 4294967295, 170, 5000000000000000170, 18446744073709551615, -86, -70, -1, -32598, 10170, 32767, -2147483478, 500000170, 2147483647, -9223372036854775638, 1000000000000000170, 9223372036854775807, -9223372036854775638, 1000000000000000170, 9223372036854775807, -9223372036854775809, 170, 9223372036854775978] [170, 186, 255, 170, 10170, 65535, 170, 1000000170, 4294967295, 170, 5000000000000000170, 18446744073709551615, -86, -70, -1, -32598, 10170, 32767, -2147483478, 500000170, 2147483647, -9223372036854775638, 1000000000000000170, 9223372036854775807, -2147483478, 500000170, 2147483647, -9223372036854775809, 170, 9223372036854775978]
[170, 152, 85, 170, 10170, 65365, 170, 1000000170, 4294967125, 170, 5000000000000000170, 18446744073709551445, 42, -104, -43, -32598, 10170, 32597, -2147483478, 500000170, 2147483477, -9223372036854775638, 1000000000000000170, 9223372036854775637, -9223372036854775638, 1000000000000000170, 9223372036854775637, -9223372036854775979, 170, 9223372036854775978] [170, 152, 85, 170, 10170, 65365, 170, 1000000170, 4294967125, 170, 5000000000000000170, 18446744073709551445, 42, -104, -43, -32598, 10170, 32597, -2147483478, 500000170, 2147483477, -9223372036854775638, 1000000000000000170, 9223372036854775637, -2147483478, 500000170, 2147483477, -9223372036854775979, 170, 9223372036854775978]
Comparisons: Comparisons:
[False, False, False, False, False, False, False, False, False, False, False, False, True, False, False, True, False, False, True, False, False, True, False, False, True, False, False, True, False, False] [False, False, False, False, False, False, False, False, False, False, False, False, True, False, False, True, False, False, True, False, False, True, False, False, True, False, False, True, False, False]
[True, False, False, True, False, False, True, False, False, True, False, False, True, False, False, True, False, False, True, False, False, True, False, False, True, False, False, True, True, False] [True, False, False, True, False, False, True, False, False, True, False, False, True, False, False, True, False, False, True, False, False, True, False, False, True, False, False, True, True, False]

2
tests/node/newints/IntOps.idr
View File

@ -83,7 +83,7 @@ int64 : IntType Int64
int64 = intType True "Int64" 64 int64 = intType True "Int64" 64
int : IntType Int int : IntType Int
int = intType True "Int" 64 int = intType True "Int" 32
record Op a where record Op a where
constructor MkOp constructor MkOp

2
tests/node/node015/expected
View File

@ -1,4 +1,4 @@
1/1: Building Numbers (Numbers.idr) 1/1: Building Numbers (Numbers.idr)
Main> [3518437212345678901234567890560, 1537557061795061679839506167983751, 3518437212345678901234567889686, 8051343735344802977653473432, 339] Main> [3518437212345678901234567890560, 1537557061795061679839506167983751, 3518437212345678901234567889686, 8051343735344802977653473432, 339]
[8650625671965379659, -3787822715642646718, 8650625671965378905, 22945956689563340, 102] [912198731, 301395778, 912197977, 2419624, 106]
Main> Bye for now! Main> Bye for now!

13
tests/node/node024/BitOps.idr
View File

@ -24,12 +24,11 @@ b32max = 0xffffffff
b64max : Bits64 b64max : Bits64
b64max = 18446744073709551615 b64max = 18446744073709551615
-- the only way to create -2^63
intmin : Int intmin : Int
intmin = shl1 63 intmin = -0x8000000
intmax : Int intmax : Int
intmax = 0x7fffffffffffffff intmax = 0x7fffffff
powsOf2 : Num a => Nat -> List a powsOf2 : Num a => Nat -> List a
powsOf2 n = take n (iterate (*2) 1) powsOf2 n = take n (iterate (*2) 1)
@ -54,10 +53,10 @@ shiftRInteger : List Integer
shiftRInteger = map (`prim__shr_Integer` 1) (powsOf2 128) shiftRInteger = map (`prim__shr_Integer` 1) (powsOf2 128)
shiftRInt : List Int shiftRInt : List Int
shiftRInt = map (`prim__shr_Int` 1) (powsOf2 63 ++ [intmax]) shiftRInt = map (`prim__shr_Int` 1) (powsOf2 31 ++ [intmax])
shiftRNegativeInt : List Int shiftRNegativeInt : List Int
shiftRNegativeInt = map (`prim__shr_Int` 1) (map negate (powsOf2 63) ++ [intmin]) shiftRNegativeInt = map (`prim__shr_Int` 1) (map negate (powsOf2 31) ++ [intmin])
-------------------------------------------------------------------------------- --------------------------------------------------------------------------------
-- shiftL -- shiftL
@ -79,10 +78,10 @@ shiftLInteger : List Integer
shiftLInteger = map (`prim__shl_Integer` 1) (0 :: powsOf2 127) shiftLInteger = map (`prim__shl_Integer` 1) (0 :: powsOf2 127)
shiftLInt : List Int shiftLInt : List Int
shiftLInt = map (`prim__shl_Int` 1) (0 :: powsOf2 62) shiftLInt = map (`prim__shl_Int` 1) (0 :: powsOf2 31)
shiftLNegativeInt : List Int shiftLNegativeInt : List Int
shiftLNegativeInt = map (`prim__shl_Int` 1) (map negate (powsOf2 62)) shiftLNegativeInt = map (`prim__shl_Int` 1) (map negate (powsOf2 31))
-------------------------------------------------------------------------------- --------------------------------------------------------------------------------

18
tests/node/node024/expected
View File

@ -1,21 +1,21 @@
1/1: Building BitOps (BitOps.idr) 1/1: Building BitOps (BitOps.idr)
Main> -9223372036854775808 Main> -134217728
[0, 1, 2, 4, 8, 16, 32, 64, 127] [0, 1, 2, 4, 8, 16, 32, 64, 127]
[0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32767] [0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32767]
[0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483647] [0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483647]
[0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483648, 4294967296, 8589934592, 17179869184, 34359738368, 68719476736, 137438953472, 274877906944, 549755813888, 1099511627776, 2199023255552, 4398046511104, 8796093022208, 17592186044416, 35184372088832, 70368744177664, 140737488355328, 281474976710656, 562949953421312, 1125899906842624, 2251799813685248, 4503599627370496, 9007199254740992, 18014398509481984, 36028797018963968, 72057594037927936, 144115188075855872, 288230376151711744, 576460752303423488, 1152921504606846976, 2305843009213693952, 4611686018427387904, 9223372036854775807] [0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483648, 4294967296, 8589934592, 17179869184, 34359738368, 68719476736, 137438953472, 274877906944, 549755813888, 1099511627776, 2199023255552, 4398046511104, 8796093022208, 17592186044416, 35184372088832, 70368744177664, 140737488355328, 281474976710656, 562949953421312, 1125899906842624, 2251799813685248, 4503599627370496, 9007199254740992, 18014398509481984, 36028797018963968, 72057594037927936, 144115188075855872, 288230376151711744, 576460752303423488, 1152921504606846976, 2305843009213693952, 4611686018427387904, 9223372036854775807]
[0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483648, 4294967296, 8589934592, 17179869184, 34359738368, 68719476736, 137438953472, 274877906944, 549755813888, 1099511627776, 2199023255552, 4398046511104, 8796093022208, 17592186044416, 35184372088832, 70368744177664, 140737488355328, 281474976710656, 562949953421312, 1125899906842624, 2251799813685248, 4503599627370496, 9007199254740992, 18014398509481984, 36028797018963968, 72057594037927936, 144115188075855872, 288230376151711744, 576460752303423488, 1152921504606846976, 2305843009213693952, 4611686018427387904, 9223372036854775808, 18446744073709551616, 36893488147419103232, 73786976294838206464, 147573952589676412928, 295147905179352825856, 590295810358705651712, 1180591620717411303424, 2361183241434822606848, 4722366482869645213696, 9444732965739290427392, 18889465931478580854784, 37778931862957161709568, 75557863725914323419136, 151115727451828646838272, 302231454903657293676544, 604462909807314587353088, 1208925819614629174706176, 2417851639229258349412352, 4835703278458516698824704, 9671406556917033397649408, 19342813113834066795298816, 38685626227668133590597632, 77371252455336267181195264, 154742504910672534362390528, 309485009821345068724781056, 618970019642690137449562112, 1237940039285380274899124224, 2475880078570760549798248448, 4951760157141521099596496896, 9903520314283042199192993792, 19807040628566084398385987584, 39614081257132168796771975168, 79228162514264337593543950336, 158456325028528675187087900672, 316912650057057350374175801344, 633825300114114700748351602688, 1267650600228229401496703205376, 2535301200456458802993406410752, 5070602400912917605986812821504, 10141204801825835211973625643008, 20282409603651670423947251286016, 40564819207303340847894502572032, 81129638414606681695789005144064, 162259276829213363391578010288128, 324518553658426726783156020576256, 649037107316853453566312041152512, 1298074214633706907132624082305024, 2596148429267413814265248164610048, 5192296858534827628530496329220096, 10384593717069655257060992658440192, 20769187434139310514121985316880384, 41538374868278621028243970633760768, 83076749736557242056487941267521536, 166153499473114484112975882535043072, 332306998946228968225951765070086144, 664613997892457936451903530140172288, 1329227995784915872903807060280344576, 2658455991569831745807614120560689152, 5316911983139663491615228241121378304, 10633823966279326983230456482242756608, 21267647932558653966460912964485513216, 42535295865117307932921825928971026432, 85070591730234615865843651857942052864] [0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483648, 4294967296, 8589934592, 17179869184, 34359738368, 68719476736, 137438953472, 274877906944, 549755813888, 1099511627776, 2199023255552, 4398046511104, 8796093022208, 17592186044416, 35184372088832, 70368744177664, 140737488355328, 281474976710656, 562949953421312, 1125899906842624, 2251799813685248, 4503599627370496, 9007199254740992, 18014398509481984, 36028797018963968, 72057594037927936, 144115188075855872, 288230376151711744, 576460752303423488, 1152921504606846976, 2305843009213693952, 4611686018427387904, 9223372036854775808, 18446744073709551616, 36893488147419103232, 73786976294838206464, 147573952589676412928, 295147905179352825856, 590295810358705651712, 1180591620717411303424, 2361183241434822606848, 4722366482869645213696, 9444732965739290427392, 18889465931478580854784, 37778931862957161709568, 75557863725914323419136, 151115727451828646838272, 302231454903657293676544, 604462909807314587353088, 1208925819614629174706176, 2417851639229258349412352, 4835703278458516698824704, 9671406556917033397649408, 19342813113834066795298816, 38685626227668133590597632, 77371252455336267181195264, 154742504910672534362390528, 309485009821345068724781056, 618970019642690137449562112, 1237940039285380274899124224, 2475880078570760549798248448, 4951760157141521099596496896, 9903520314283042199192993792, 19807040628566084398385987584, 39614081257132168796771975168, 79228162514264337593543950336, 158456325028528675187087900672, 316912650057057350374175801344, 633825300114114700748351602688, 1267650600228229401496703205376, 2535301200456458802993406410752, 5070602400912917605986812821504, 10141204801825835211973625643008, 20282409603651670423947251286016, 40564819207303340847894502572032, 81129638414606681695789005144064, 162259276829213363391578010288128, 324518553658426726783156020576256, 649037107316853453566312041152512, 1298074214633706907132624082305024, 2596148429267413814265248164610048, 5192296858534827628530496329220096, 10384593717069655257060992658440192, 20769187434139310514121985316880384, 41538374868278621028243970633760768, 83076749736557242056487941267521536, 166153499473114484112975882535043072, 332306998946228968225951765070086144, 664613997892457936451903530140172288, 1329227995784915872903807060280344576, 2658455991569831745807614120560689152, 5316911983139663491615228241121378304, 10633823966279326983230456482242756608, 21267647932558653966460912964485513216, 42535295865117307932921825928971026432, 85070591730234615865843651857942052864]
[0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483648, 4294967296, 8589934592, 17179869184, 34359738368, 68719476736, 137438953472, 274877906944, 549755813888, 1099511627776, 2199023255552, 4398046511104, 8796093022208, 17592186044416, 35184372088832, 70368744177664, 140737488355328, 281474976710656, 562949953421312, 1125899906842624, 2251799813685248, 4503599627370496, 9007199254740992, 18014398509481984, 36028797018963968, 72057594037927936, 144115188075855872, 288230376151711744, 576460752303423488, 1152921504606846976, 2305843009213693952, 4611686018427387903] [0, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741823]
[-1, -1, -2, -4, -8, -16, -32, -64, -128, -256, -512, -1024, -2048, -4096, -8192, -16384, -32768, -65536, -131072, -262144, -524288, -1048576, -2097152, -4194304, -8388608, -16777216, -33554432, -67108864, -134217728, -268435456, -536870912, -1073741824, -2147483648, -4294967296, -8589934592, -17179869184, -34359738368, -68719476736, -137438953472, -274877906944, -549755813888, -1099511627776, -2199023255552, -4398046511104, -8796093022208, -17592186044416, -35184372088832, -70368744177664, -140737488355328, -281474976710656, -562949953421312, -1125899906842624, -2251799813685248, -4503599627370496, -9007199254740992, -18014398509481984, -36028797018963968, -72057594037927936, -144115188075855872, -288230376151711744, -576460752303423488, -1152921504606846976, -2305843009213693952, -4611686018427387904] [-1, -1, -2, -4, -8, -16, -32, -64, -128, -256, -512, -1024, -2048, -4096, -8192, -16384, -32768, -65536, -131072, -262144, -524288, -1048576, -2097152, -4194304, -8388608, -16777216, -33554432, -67108864, -134217728, -268435456, -536870912, -67108864]
[0, 2, 4, 8, 16, 32, 64, 128] [0, 2, 4, 8, 16, 32, 64, 128]
[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768] [0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768]
[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483648] [0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483648]
[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483648, 4294967296, 8589934592, 17179869184, 34359738368, 68719476736, 137438953472, 274877906944, 549755813888, 1099511627776, 2199023255552, 4398046511104, 8796093022208, 17592186044416, 35184372088832, 70368744177664, 140737488355328, 281474976710656, 562949953421312, 1125899906842624, 2251799813685248, 4503599627370496, 9007199254740992, 18014398509481984, 36028797018963968, 72057594037927936, 144115188075855872, 288230376151711744, 576460752303423488, 1152921504606846976, 2305843009213693952, 4611686018427387904, 9223372036854775808] [0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483648, 4294967296, 8589934592, 17179869184, 34359738368, 68719476736, 137438953472, 274877906944, 549755813888, 1099511627776, 2199023255552, 4398046511104, 8796093022208, 17592186044416, 35184372088832, 70368744177664, 140737488355328, 281474976710656, 562949953421312, 1125899906842624, 2251799813685248, 4503599627370496, 9007199254740992, 18014398509481984, 36028797018963968, 72057594037927936, 144115188075855872, 288230376151711744, 576460752303423488, 1152921504606846976, 2305843009213693952, 4611686018427387904, 9223372036854775808]
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162259276829213363391578010288128, 324518553658426726783156020576256, 649037107316853453566312041152512, 1298074214633706907132624082305024, 2596148429267413814265248164610048, 5192296858534827628530496329220096, 10384593717069655257060992658440192, 20769187434139310514121985316880384, 41538374868278621028243970633760768, 83076749736557242056487941267521536, 166153499473114484112975882535043072, 332306998946228968225951765070086144, 664613997892457936451903530140172288, 1329227995784915872903807060280344576, 2658455991569831745807614120560689152, 5316911983139663491615228241121378304, 10633823966279326983230456482242756608, 21267647932558653966460912964485513216, 42535295865117307932921825928971026432, 85070591730234615865843651857942052864, 170141183460469231731687303715884105728] [0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483648, 4294967296, 8589934592, 17179869184, 34359738368, 68719476736, 137438953472, 274877906944, 549755813888, 1099511627776, 2199023255552, 4398046511104, 8796093022208, 17592186044416, 35184372088832, 70368744177664, 140737488355328, 281474976710656, 562949953421312, 1125899906842624, 2251799813685248, 4503599627370496, 9007199254740992, 18014398509481984, 36028797018963968, 72057594037927936, 144115188075855872, 288230376151711744, 576460752303423488, 1152921504606846976, 2305843009213693952, 4611686018427387904, 9223372036854775808, 18446744073709551616, 36893488147419103232, 73786976294838206464, 147573952589676412928, 295147905179352825856, 590295810358705651712, 1180591620717411303424, 2361183241434822606848, 4722366482869645213696, 9444732965739290427392, 18889465931478580854784, 37778931862957161709568, 75557863725914323419136, 151115727451828646838272, 302231454903657293676544, 604462909807314587353088, 1208925819614629174706176, 2417851639229258349412352, 4835703278458516698824704, 9671406556917033397649408, 19342813113834066795298816, 38685626227668133590597632, 77371252455336267181195264, 154742504910672534362390528, 309485009821345068724781056, 618970019642690137449562112, 1237940039285380274899124224, 2475880078570760549798248448, 4951760157141521099596496896, 9903520314283042199192993792, 19807040628566084398385987584, 39614081257132168796771975168, 79228162514264337593543950336, 158456325028528675187087900672, 316912650057057350374175801344, 633825300114114700748351602688, 1267650600228229401496703205376, 2535301200456458802993406410752, 5070602400912917605986812821504, 10141204801825835211973625643008, 20282409603651670423947251286016, 40564819207303340847894502572032, 81129638414606681695789005144064, 162259276829213363391578010288128, 324518553658426726783156020576256, 649037107316853453566312041152512, 1298074214633706907132624082305024, 2596148429267413814265248164610048, 5192296858534827628530496329220096, 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[0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483648, 4294967296, 8589934592, 17179869184, 34359738368, 68719476736, 137438953472, 274877906944, 549755813888, 1099511627776, 2199023255552, 4398046511104, 8796093022208, 17592186044416, 35184372088832, 70368744177664, 140737488355328, 281474976710656, 562949953421312, 1125899906842624, 2251799813685248, 4503599627370496, 9007199254740992, 18014398509481984, 36028797018963968, 72057594037927936, 144115188075855872, 288230376151711744, 576460752303423488, 1152921504606846976, 2305843009213693952, 4611686018427387904] [0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, -2147483648]
[-2, -4, -8, -16, -32, -64, -128, -256, -512, -1024, -2048, -4096, -8192, -16384, -32768, -65536, -131072, -262144, -524288, -1048576, -2097152, -4194304, -8388608, -16777216, -33554432, -67108864, -134217728, -268435456, -536870912, -1073741824, -2147483648, -4294967296, -8589934592, -17179869184, -34359738368, -68719476736, -137438953472, -274877906944, -549755813888, -1099511627776, -2199023255552, -4398046511104, -8796093022208, -17592186044416, -35184372088832, -70368744177664, -140737488355328, -281474976710656, -562949953421312, -1125899906842624, -2251799813685248, -4503599627370496, -9007199254740992, -18014398509481984, -36028797018963968, -72057594037927936, -144115188075855872, -288230376151711744, -576460752303423488, -1152921504606846976, -2305843009213693952, -4611686018427387904] [-2, -4, -8, -16, -32, -64, -128, -256, -512, -1024, -2048, -4096, -8192, -16384, -32768, -65536, -131072, -262144, -524288, -1048576, -2097152, -4194304, -8388608, -16777216, -33554432, -67108864, -134217728, -268435456, -536870912, -1073741824, -2147483648]
[11, 0, 1, 2, 0, 11] [11, 0, 1, 2, 0, 11]
[11, 0, 1, 2, 0, 11] [11, 0, 1, 2, 0, 11]
@ -23,14 +23,14 @@ Main> -9223372036854775808
[11, 0, 1, 2, 0, 11] [11, 0, 1, 2, 0, 11]
[11, 0, 1, 2, 0, 11] [11, 0, 1, 2, 0, 11]
[11, 0, 1, 2, 0, 11] [11, 0, 1, 2, 0, 11]
[9223372036854775797, 0, 1, 0, 4, 1, -9223372036854775808, -11, -12, -12, -11] [2147483637, 0, 1, 0, 4, 1, -134217728, -11, -12, -12, -11]
[255, 11, 11, 11, 15, 11] [255, 11, 11, 11, 15, 11]
[65535, 11, 11, 11, 15, 11] [65535, 11, 11, 11, 15, 11]
[4294967295, 11, 11, 11, 15, 11] [4294967295, 11, 11, 11, 15, 11]
[18446744073709551615, 11, 11, 11, 15, 11] [18446744073709551615, 11, 11, 11, 15, 11]
[340282366920938463463374607431768211455, 11, 11, 11, 15, 11] [340282366920938463463374607431768211455, 11, 11, 11, 15, 11]
[9223372036854775807, 11, 11, 11, 15, 11] [2147483647, 11, 11, 11, 15, 11]
[-1, -11, -11, -9, -11, -1, -11, -1, -1, -3, -11] [-1, -11, -11, -9, -11, -1, -11, -1, -1, -3, -11]
[244, 11, 10, 9, 15, 0] [244, 11, 10, 9, 15, 0]
@ -38,6 +38,6 @@ Main> -9223372036854775808
[4294967284, 11, 10, 9, 15, 0] [4294967284, 11, 10, 9, 15, 0]
[18446744073709551604, 11, 10, 9, 15, 0] [18446744073709551604, 11, 10, 9, 15, 0]
[340282366920938463463374607431768211444, 11, 10, 9, 15, 0] [340282366920938463463374607431768211444, 11, 10, 9, 15, 0]
[9223372036854775796, 11, 10, 9, 15, 0] [2147483636, 11, 10, 9, 15, 0]
[-9223372036854775798, -11, -12, -9, -15, -2, 9223372036854775797, 10, 11, 9, 0] [-2147483638, -11, -12, -9, -15, -2, 134217717, 10, 11, 9, 0]
Main> Bye for now! Main> Bye for now!