1{-# LANGUAGE MultiParamTypeClasses, FlexibleInstances, DeriveFunctor,
2 DeriveDataTypeable, TypeSynonymInstances, PatternGuards #-}
4module Idris.AbsSyntaxTree where
7import Idris.Core.Evaluate
8import Idris.Core.Elaborate hiding (Tactic(..))
9import Idris.Core.Typecheck
10import Idris.Docstrings
12import IRTS.CodegenCommon
14import Util.DynamicLinker
18import System.Console.Haskeline
21import Prelude hiding ((<$>))
23import Control.Applicative ((<|>))
25import Control.Monad.Trans.State.Strict
26import Control.Monad.Trans.Except
27import qualified Control.Monad.Trans.Class as Trans (lift)
29import Data.Data (Data)
30import Data.Function (on)
31import Data.Generics.Uniplate.Data (universe, children)
32import Data.List hiding (group)
34import qualified Data.Map.Strict as M
35import qualified Data.Text as T
37import qualified Data.Set as S
38import Data.Word (Word)
39import Data.Maybe (fromMaybe, mapMaybe, maybeToList)
40import Data.Traversable (Traversable)
42import Data.Foldable (Foldable)
46import Text.PrettyPrint.Annotated.Leijen
48data ElabWhat = ETypes | EDefns | EAll
51-- Data to pass to recursively called elaborators; e.g. for where blocks,
52-- paramaterised declarations, etc.
54-- rec_elabDecl is used to pass the top level elaborator into other elaborators,
55-- so that we can have mutually recursive elaborators in separate modules without
56-- having to muck about with cyclic modules.
57data ElabInfo = EInfo { params :: [(Name, PTerm)],
58 inblock :: Ctxt [Name], -- names in the block, and their params
59 liftname :: Name -> Name,
60 namespace :: Maybe [String],
62 rec_elabDecl :: ElabWhat -> ElabInfo -> PDecl ->
66toplevel = EInfo [] emptyContext id Nothing Nothing (\_ _ _ -> fail "Not implemented")
68eInfoNames :: ElabInfo -> [Name]
69eInfoNames info = map fst (params info) ++ M.keys (inblock info)
71data IOption = IOption { opt_logLevel :: Int,
73 opt_typeintype :: Bool,
75 opt_showimp :: Bool, -- ^^ show implicits
76 opt_errContext :: Bool,
81 opt_codegen :: Codegen,
82 opt_outputTy :: OutputType,
83 opt_ibcsubdir :: FilePath,
84 opt_importdirs :: [FilePath],
87 opt_cmdline :: [Opt], -- remember whole command line
89 opt_autoSolve :: Bool, -- ^ automatically apply "solve" tactic in prover
90 opt_autoImport :: [FilePath], -- ^ e.g. Builtins+Prelude
91 opt_optimise :: [Optimisation],
92 opt_printdepth :: Maybe Int,
93 opt_evaltypes :: Bool, -- ^ normalise types in :t
94 opt_desugarnats :: Bool
98defaultOpts = IOption { opt_logLevel = 0
99 , opt_typecase = False
100 , opt_typeintype = False
101 , opt_coverage = True
102 , opt_showimp = False
103 , opt_errContext = False
106 , opt_nobanner = False
108 , opt_codegen = Via "c"
109 , opt_outputTy = Executable
111 , opt_importdirs = []
115 , opt_origerr = False
116 , opt_autoSolve = True
117 , opt_autoImport = []
118 , opt_optimise = defaultOptimise
119 , opt_printdepth = Just 5000
120 , opt_evaltypes = True
121 , opt_desugarnats = False
124data PPOption = PPOption {
125 ppopt_impl :: Bool -- ^^ whether to show implicits
126 , ppopt_desugarnats :: Bool
127 , ppopt_pinames :: Bool -- ^^ whether to show names in pi bindings
128 , ppopt_depth :: Maybe Int
131data Optimisation = PETransform -- partial eval and associated transforms
134defaultOptimise = [PETransform]
136-- | Pretty printing options with default verbosity.
137defaultPPOption :: PPOption
138defaultPPOption = PPOption { ppopt_impl = False,
139 ppopt_desugarnats = False,
140 ppopt_pinames = False,
141 ppopt_depth = Just 200 }
143-- | Pretty printing options with the most verbosity.
144verbosePPOption :: PPOption
145verbosePPOption = PPOption { ppopt_impl = True,
146 ppopt_desugarnats = True,
147 ppopt_pinames = True,
148 ppopt_depth = Just 200 }
150-- | Get pretty printing options from the big options record.
151ppOption :: IOption -> PPOption
152ppOption opt = PPOption {
153 ppopt_impl = opt_showimp opt,
154 ppopt_pinames = False,
155 ppopt_depth = opt_printdepth opt,
156 ppopt_desugarnats = opt_desugarnats opt
159-- | Get pretty printing options from an idris state record.
160ppOptionIst :: IState -> PPOption
161ppOptionIst = ppOption . idris_options
163data LanguageExt = TypeProviders | ErrorReflection deriving (Show, Eq, Read, Ord)
165-- | The output mode in use
166data OutputMode = RawOutput Handle -- ^ Print user output directly to the handle
167 | IdeMode Integer Handle -- ^ Send IDE output for some request ID to the handle
170-- | How wide is the console?
171data ConsoleWidth = InfinitelyWide -- ^ Have pretty-printer assume that lines should not be broken
172 | ColsWide Int -- ^ Manually specified - must be positive
173 | AutomaticWidth -- ^ Attempt to determine width, or 80 otherwise
177-- | The global state used in the Idris monad
178data IState = IState {
179 tt_ctxt :: Context, -- ^ All the currently defined names and their terms
180 idris_constraints :: S.Set ConstraintFC,
181 -- ^ A list of universe constraints and their corresponding source locations
182 idris_infixes :: [FixDecl], -- ^ Currently defined infix operators
183 idris_implicits :: Ctxt [PArg],
184 idris_statics :: Ctxt [Bool],
185 idris_classes :: Ctxt ClassInfo,
186 idris_records :: Ctxt RecordInfo,
187 idris_dsls :: Ctxt DSL,
188 idris_optimisation :: Ctxt OptInfo,
189 idris_datatypes :: Ctxt TypeInfo,
190 idris_namehints :: Ctxt [Name],
191 idris_patdefs :: Ctxt ([([Name], Term, Term)], [PTerm]), -- not exported
192 -- ^ list of lhs/rhs, and a list of missing clauses
193 idris_flags :: Ctxt [FnOpt],
194 idris_callgraph :: Ctxt CGInfo, -- name, args used in each pos
195 idris_calledgraph :: Ctxt [Name],
196 idris_docstrings :: Ctxt (Docstring DocTerm, [(Name, Docstring DocTerm)]),
197 idris_moduledocs :: Ctxt (Docstring DocTerm),
198 -- ^ module documentation is saved in a special MN so the context
199 -- mechanism can be used for disambiguation
200 idris_tyinfodata :: Ctxt TIData,
201 idris_fninfo :: Ctxt FnInfo,
202 idris_transforms :: Ctxt [(Term, Term)],
203 idris_autohints :: Ctxt [Name],
204 idris_totcheck :: [(FC, Name)], -- names to check totality on
205 idris_defertotcheck :: [(FC, Name)], -- names to check at the end
206 idris_totcheckfail :: [(FC, String)],
207 idris_options :: IOption,
209 idris_lineapps :: [((FilePath, Int), PTerm)],
210 -- ^ Full application LHS on source line
211 idris_metavars :: [(Name, (Maybe Name, Int, [Name], Bool))],
212 -- ^ The currently defined but not proven metavariables. The Int
213 -- is the number of vars to display as a context, the Maybe Name
214 -- is its top-level function, the [Name] is the list of local variables
215 -- available for proof search and the Bool is whether :p is
217 idris_coercions :: [Name],
218 idris_errRev :: [(Term, Term)],
219 syntax_rules :: SyntaxRules,
220 syntax_keywords :: [String],
221 imported :: [FilePath], -- ^ The imported modules
222 idris_scprims :: [(Name, (Int, PrimFn))],
223 idris_objs :: [(Codegen, FilePath)],
224 idris_libs :: [(Codegen, String)],
225 idris_cgflags :: [(Codegen, String)],
226 idris_hdrs :: [(Codegen, String)],
227 idris_imported :: [(FilePath, Bool)], -- ^ Imported ibc file names, whether public
228 proof_list :: [(Name, (Bool, [String]))],
230 parserWarnings :: [(FC, Err)],
231 lastParse :: Maybe Name,
232 indent_stack :: [Int],
233 brace_stack :: [Maybe Int],
234 lastTokenSpan :: Maybe FC, -- ^ What was the span of the latest token parsed?
235 idris_parsedSpan :: Maybe FC,
236 hide_list :: [(Name, Maybe Accessibility)],
237 default_access :: Accessibility,
238 default_total :: Bool,
239 ibc_write :: [IBCWrite],
240 compiled_so :: Maybe String,
241 idris_dynamic_libs :: [DynamicLib],
242 idris_language_extensions :: [LanguageExt],
243 idris_outputmode :: OutputMode,
244 idris_colourRepl :: Bool,
245 idris_colourTheme :: ColourTheme,
246 idris_errorhandlers :: [Name], -- ^ Global error handlers
247 idris_nameIdx :: (Int, Ctxt (Int, Name)),
248 idris_function_errorhandlers :: Ctxt (M.Map Name (S.Set Name)), -- ^ Specific error handlers
249 module_aliases :: M.Map [T.Text] [T.Text],
250 idris_consolewidth :: ConsoleWidth, -- ^ How many chars wide is the console?
251 idris_postulates :: S.Set Name,
252 idris_externs :: S.Set (Name, Int),
253 idris_erasureUsed :: [(Name, Int)], -- ^ Function/constructor name, argument position is used
254 idris_whocalls :: Maybe (M.Map Name [Name]),
255 idris_callswho :: Maybe (M.Map Name [Name]),
256 idris_repl_defs :: [Name], -- ^ List of names that were defined in the repl, and can be re-/un-defined
257 elab_stack :: [(Name, Bool)], -- ^ Stack of names currently being elaborated, Bool set if it's an instance
258 -- (instances appear twice; also as a funtion name)
259 idris_symbols :: M.Map Name Name, -- ^ Symbol table (preserves sharing of names)
260 idris_exports :: [Name], -- ^ Functions with ExportList
261 idris_highlightedRegions :: [(FC, OutputAnnotation)], -- ^ Highlighting information to output
262 idris_parserHighlights :: [(FC, OutputAnnotation)] -- ^ Highlighting information from the parser
265-- Required for parsers library, and therefore trifecta
266instance Show IState where
267 show = const "{internal state}"
269data SizeChange = Smaller | Same | Bigger | Unknown
272deriving instance Binary SizeChange
273deriving instance NFData SizeChange
276type SCGEntry = (Name, [Maybe (Int, SizeChange)])
277type UsageReason = (Name, Int) -- fn_name, its_arg_number
279data CGInfo = CGInfo { argsdef :: [Name],
280 calls :: [(Name, [[Name]])],
283 usedpos :: [(Int, [UsageReason])] }
286deriving instance Binary CGInfo
287deriving instance NFData CGInfo
290primDefs = [sUN "unsafePerformPrimIO",
291 sUN "mkLazyForeignPrim",
295-- information that needs writing for the current module's .ibc file
296data IBCWrite = IBCFix FixDecl
301 | IBCInstance Bool Bool Name Name
308 | IBCImport (Bool, FilePath) -- True = import public
309 | IBCImportDir FilePath
310 | IBCObj Codegen FilePath
311 | IBCLib Codegen String
312 | IBCCGFlag Codegen String
314 | IBCHeader Codegen String
315 | IBCAccess Name Accessibility
316 | IBCMetaInformation Name MetaInformation
317 | IBCTotal Name Totality
318 | IBCFlags Name [FnOpt]
319 | IBCFnInfo Name FnInfo
320 | IBCTrans Name (Term, Term)
321 | IBCErrRev (Term, Term)
325 | IBCDef Name -- i.e. main context
326 | IBCNameHint (Name, Name)
327 | IBCLineApp FilePath Int PTerm
328 | IBCErrorHandler Name
329 | IBCFunctionErrorHandler Name Name Name
331 | IBCExtern (Name, Int)
332 | IBCTotCheckErr FC String
334 | IBCModDocs Name -- ^ The name is the special name used to track module docs
335 | IBCUsage (Name, Int)
337 | IBCAutoHint Name Name
340-- | The initial state for the compiler
342idrisInit = IState initContext S.empty []
343 emptyContext emptyContext emptyContext emptyContext
344 emptyContext emptyContext emptyContext emptyContext
345 emptyContext emptyContext emptyContext emptyContext
346 emptyContext emptyContext emptyContext emptyContext
347 emptyContext emptyContext
348 [] [] [] defaultOpts 6 [] [] [] [] emptySyntaxRules [] [] [] [] [] [] []
349 [] [] Nothing [] Nothing [] [] Nothing Nothing [] Hidden False [] Nothing [] []
350 (RawOutput stdout) True defaultTheme [] (0, emptyContext) emptyContext M.empty
351 AutomaticWidth S.empty S.empty [] Nothing Nothing [] [] M.empty [] [] []
353-- | The monad for the main REPL - reading and processing files and updating
354-- global state (hence the IO inner monad).
355--type Idris = WriterT [Either String (IO ())] (State IState a))
356type Idris = StateT IState (ExceptT Err IO)
358catchError :: Idris a -> (Err -> Idris a) -> Idris a
359catchError = liftCatch catchE
361throwError :: Err -> Idris a
362throwError = Trans.lift . throwE
364-- Commands in the REPL
366data Codegen = Via String
375deriving instance NFData Codegen
378data HowMuchDocs = FullDocs | OverviewDocs
384 | NewDefn [PDecl] -- ^ Each 'PDecl' should be either a type declaration (at most one) or a clause defining the same name.
388 | DocStr (Either Name Const) HowMuchDocs
391 | Load FilePath (Maybe Int) -- up to maximum line number
392 | ChangeDirectory FilePath
395 | Compile Codegen String
399 | Prove Bool Name -- ^ If false, use prover, if true, use elab shell
400 | AddProof (Maybe Name)
411 | DynamicLink FilePath
414 | Search [String] PTerm
415 | CaseSplitAt Bool Int Name
416 | AddClauseFrom Bool Int Name
417 | AddProofClauseFrom Bool Int Name
418 | AddMissing Bool Int Name
419 | MakeWith Bool Int Name
420 | MakeCase Bool Int Name
421 | MakeLemma Bool Int Name
422 | DoProofSearch Bool -- update file
423 Bool -- recursive search
425 Name -- top level name
430 | SetColour ColourType IdrisColour
434 | SetConsoleWidth ConsoleWidth
435 | SetPrinterDepth (Maybe Int)
436 | Apropos [String] String
440 | MakeDoc String -- IdrisDoc
443 | PPrint OutputFmt Int PTerm
445 -- Debugging commands
447 | DebugUnify PTerm PTerm
449data OutputFmt = HTMLOutput | LaTeXOutput
451data Opt = Filename String
463 | NoBuiltins -- only for the really primitive stuff!
479 | Port String -- REPL TCP port
487 | PkgMkDoc String -- IdrisDoc
497 | OutputTy OutputType
498 | Extension LanguageExt
499 | InterpretScript String
501 | TargetTriple String
504 | AddOpt Optimisation
505 | RemoveOpt Optimisation
508 | AutoWidth -- ^ Automatically adjust terminal width
509 | AutoSolve -- ^ Automatically issue "solve" tactic in interactive prover
510 | UseConsoleWidth ConsoleWidth
515data ElabShellCmd = EQED | EAbandon | EUndo | EProofState | EProofTerm
516 | EEval PTerm | ECheck PTerm | ESearch PTerm
517 | EDocStr (Either Name Const)
520-- Parsed declarations
522data Fixity = Infixl { prec :: Int }
523 | Infixr { prec :: Int }
524 | InfixN { prec :: Int }
525 | PrefixN { prec :: Int }
528deriving instance Binary Fixity
529deriving instance NFData Fixity
532instance Show Fixity where
533 show (Infixl i) = "infixl " ++ show i
534 show (Infixr i) = "infixr " ++ show i
535 show (InfixN i) = "infix " ++ show i
536 show (PrefixN i) = "prefix " ++ show i
538data FixDecl = Fix Fixity String
541instance Show FixDecl where
542 show (Fix f s) = show f ++ " " ++ s
545deriving instance Binary FixDecl
546deriving instance NFData FixDecl
549instance Ord FixDecl where
550 compare (Fix x _) (Fix y _) = compare (prec x) (prec y)
553data Static = Static | Dynamic
554 deriving (Show, Eq, Data, Typeable)
556deriving instance Binary Static
557deriving instance NFData Static
560-- Mark bindings with their explicitness, and laziness
561data Plicity = Imp { pargopts :: [ArgOpt],
564 pscoped :: Maybe ImplicitInfo -- Nothing, if top level
566 | Exp { pargopts :: [ArgOpt],
568 pparam :: Bool } -- this is a param (rather than index)
569 | Constraint { pargopts :: [ArgOpt],
571 | TacImp { pargopts :: [ArgOpt],
574 deriving (Show, Eq, Data, Typeable)
577deriving instance Binary Plicity
578deriving instance NFData Plicity
581is_scoped :: Plicity -> Maybe ImplicitInfo
582is_scoped (Imp _ _ _ s) = s
585impl = Imp [] Dynamic False Nothing
586forall_imp = Imp [] Dynamic False (Just (Impl False))
587forall_constraint = Imp [] Dynamic False (Just (Impl True))
588expl = Exp [] Dynamic False
589expl_param = Exp [] Dynamic True
590constraint = Constraint [] Static
591tacimpl t = TacImp [] Dynamic t
593data FnOpt = Inlinable -- always evaluate when simplifying
594 | TotalFn | PartialFn | CoveringFn
595 | Coinductive | AssertTotal
596 | Dictionary -- type class dictionary, eval only when
597 -- a function argument, and further evaluation resutls
598 | Implicit -- implicit coercion
599 | NoImplicit -- do not apply implicit coercions
600 | CExport String -- export, with a C name
601 | ErrorHandler -- ^^ an error handler for use with the ErrorReflection extension
602 | ErrorReverse -- ^^ attempt to reverse normalise before showing in error
603 | Reflection -- a reflecting function, compile-time only
604 | Specialise [(Name, Maybe Int)] -- specialise it, freeze these names
605 | Constructor -- Data constructor type
606 | AutoHint -- use in auto implicit search
607 | PEGenerated -- generated by partial evaluator
610deriving instance Binary FnOpt
611deriving instance NFData FnOpt
616inlinable :: FnOpts -> Bool
617inlinable = elem Inlinable
619dictionary :: FnOpts -> Bool
620dictionary = elem Dictionary
623-- | Type provider - what to provide
624data ProvideWhat' t = ProvTerm t t -- ^ the first is the goal type, the second is the term
625 | ProvPostulate t -- ^ goal type must be Type, so only term
626 deriving (Show, Eq, Functor)
628type ProvideWhat = ProvideWhat' PTerm
630-- | Top-level declarations such as compiler directives, definitions,
631-- datatypes and typeclasses.
633 = PFix FC Fixity [String] -- ^ Fixity declaration
634 | PTy (Docstring (Either Err t)) [(Name, Docstring (Either Err t))] SyntaxInfo FC FnOpts Name FC t -- ^ Type declaration (last FC is precise name location)
635 | PPostulate Bool -- external def if true
636 (Docstring (Either Err t)) SyntaxInfo FC FC FnOpts Name t -- ^ Postulate, second FC is precise name location
637 | PClauses FC FnOpts Name [PClause' t] -- ^ Pattern clause
638 | PCAF FC Name t -- ^ Top level constant
639 | PData (Docstring (Either Err t)) [(Name, Docstring (Either Err t))] SyntaxInfo FC DataOpts (PData' t) -- ^ Data declaration.
640 | PParams FC [(Name, t)] [PDecl' t] -- ^ Params block
641 | PNamespace String FC [PDecl' t]
642 -- ^ New namespace, where FC is accurate location of the
643 -- namespace in the file
644 | PRecord (Docstring (Either Err t)) SyntaxInfo FC DataOpts
646 FC -- Record name precise location
647 [(Name, FC, Plicity, t)] -- Parameters, where FC is precise name span
648 [(Name, Docstring (Either Err t))] -- Param Docs
649 [((Maybe (Name, FC)), Plicity, t, Maybe (Docstring (Either Err t)))] -- Fields
650 (Maybe (Name, FC)) -- Optional constructor name and location
651 (Docstring (Either Err t)) -- Constructor doc
652 SyntaxInfo -- Constructor SyntaxInfo
653 -- ^ Record declaration
654 | PClass (Docstring (Either Err t)) SyntaxInfo FC
655 [(Name, t)] -- constraints
657 FC -- accurate location of class name
658 [(Name, FC, t)] -- parameters and precise locations
659 [(Name, Docstring (Either Err t))] -- parameter docstrings
660 [(Name, FC)] -- determining parameters and precise locations
661 [PDecl' t] -- declarations
662 (Maybe (Name, FC)) -- instance constructor name and location
663 (Docstring (Either Err t)) -- instance constructor docs
664 -- ^ Type class: arguments are documentation, syntax info, source location, constraints,
665 -- class name, class name location, parameters, method declarations, optional constructor name
667 (Docstring (Either Err t)) -- Instance docs
668 [(Name, Docstring (Either Err t))] -- Parameter docs
670 FC [(Name, t)] -- constraints
672 FC -- precise location of class
674 t -- full instance type
675 (Maybe Name) -- explicit name
677 -- ^ Instance declaration: arguments are documentation, syntax info, source
678 -- location, constraints, class name, parameters, full instance
679 -- type, optional explicit name, and definitions
680 | PDSL Name (DSL' t) -- ^ DSL declaration
681 | PSyntax FC Syntax -- ^ Syntax definition
682 | PMutual FC [PDecl' t] -- ^ Mutual block
683 | PDirective Directive -- ^ Compiler directive.
684 | PProvider (Docstring (Either Err t)) SyntaxInfo FC FC (ProvideWhat' t) Name -- ^ Type provider. The first t is the type, the second is the term. The second FC is precise highlighting location.
685 | PTransform FC Bool t t -- ^ Source-to-source transformation rule. If
686 -- bool is True, lhs and rhs must be convertible
687 | PRunElabDecl FC t [String] -- ^ FC is decl-level, for errors, and
688 -- Strings represent the namespace
691deriving instance Binary PDecl'
692deriving instance NFData PDecl'
695-- | The set of source directives
696data Directive = DLib Codegen String |
697 DLink Codegen String |
698 DFlag Codegen String |
699 DInclude Codegen String |
702 DAccess Accessibility |
705 DDynamicLibs [String] |
706 DNameHint Name FC [(Name, FC)] |
707 DErrorHandlers Name FC Name FC [(Name, FC)] |
708 DLanguage LanguageExt |
711-- | A set of instructions for things that need to happen in IState
712-- after a term elaboration when there's been reflected elaboration.
713data RDeclInstructions = RTyDeclInstrs Name FC [PArg] Type
714 | RClausesInstrs Name [([Name], Term, Term)]
715 | RAddInstance Name Name
717-- | For elaborator state
718data EState = EState {
719 case_decls :: [(Name, PDecl)],
720 delayed_elab :: [(Int, Elab' EState ())],
721 new_tyDecls :: [RDeclInstructions],
722 highlighting :: [(FC, OutputAnnotation)]
726initEState = EState [] [] [] []
728type ElabD a = Elab' EState a
730highlightSource :: FC -> OutputAnnotation -> ElabD ()
731highlightSource fc annot =
732 updateAux (\aux -> aux { highlighting = (fc, annot) : highlighting aux })
734-- | One clause of a top-level definition. Term arguments to constructors are:
736-- 1. The whole application (missing for PClauseR and PWithR because they're within a "with" clause)
738-- 2. The list of extra 'with' patterns
740-- 3. The right-hand side
742-- 4. The where block (PDecl' t)
744data PClause' t = PClause FC Name t [t] t [PDecl' t] -- ^ A normal top-level definition.
745 | PWith FC Name t [t] t (Maybe (Name, FC)) [PDecl' t]
746 | PClauseR FC [t] t [PDecl' t]
747 | PWithR FC [t] t (Maybe (Name, FC)) [PDecl' t]
750deriving instance Binary PClause'
751deriving instance NFData PClause'
755data PData' t = PDatadecl { d_name :: Name, -- ^ The name of the datatype
756 d_name_fc :: FC, -- ^ The precise location of the type constructor name
757 d_tcon :: t, -- ^ Type constructor
758 d_cons :: [(Docstring (Either Err PTerm), [(Name, Docstring (Either Err PTerm))], Name, FC, t, FC, [Name])] -- ^ Constructors
760 -- ^ Data declaration
761 | PLaterdecl { d_name :: Name, d_name_fc :: FC, d_tcon :: t }
762 -- ^ "Placeholder" for data whose constructors are defined later
765-- | Transform the FCs in a PData and its associated terms. The first
766-- function transforms the general-purpose FCs, and the second transforms
767-- those that are used for semantic source highlighting, so they can be
769mapPDataFC :: (FC -> FC) -> (FC -> FC) -> PData -> PData
770mapPDataFC f g (PDatadecl n nfc tycon ctors) =
771 PDatadecl n (g nfc) (mapPTermFC f g tycon) (map ctorFC ctors)
772 where ctorFC (doc, argDocs, n, nfc, ty, fc, ns) =
773 (doc, argDocs, n, g nfc, mapPTermFC f g ty, f fc, ns)
774mapPDataFC f g (PLaterdecl n nfc tycon) =
775 PLaterdecl n (g nfc) (mapPTermFC f g tycon)
777deriving instance Binary PData'
778deriving instance NFData PData'
781-- Handy to get a free function for applying PTerm -> PTerm functions
782-- across a program, by deriving Functor
784type PDecl = PDecl' PTerm
785type PData = PData' PTerm
786type PClause = PClause' PTerm
788-- | Transform the FCs in a PTerm. The first function transforms the
789-- general-purpose FCs, and the second transforms those that are used
790-- for semantic source highlighting, so they can be treated specially.
791mapPDeclFC :: (FC -> FC) -> (FC -> FC) -> PDecl -> PDecl
792mapPDeclFC f g (PFix fc fixity ops) =
793 PFix (f fc) fixity ops
794mapPDeclFC f g (PTy doc argdocs syn fc opts n nfc ty) =
795 PTy doc argdocs syn (f fc) opts n (g nfc) (mapPTermFC f g ty)
796mapPDeclFC f g (PPostulate ext doc syn fc nfc opts n ty) =
797 PPostulate ext doc syn (f fc) (g nfc) opts n (mapPTermFC f g ty)
799mapPDeclFC f g (PClauses fc opts n clauses) =
800 PClauses (f fc) opts n (map (fmap (mapPTermFC f g)) clauses)
801mapPDeclFC f g (PCAF fc n tm) = PCAF (f fc) n (mapPTermFC f g tm)
802mapPDeclFC f g (PData doc argdocs syn fc opts dat) =
803 PData doc argdocs syn (f fc) opts (mapPDataFC f g dat)
804mapPDeclFC f g (PParams fc params decls) =
806 (map (\(n, ty) -> (n, mapPTermFC f g ty)) params)
807 (map (mapPDeclFC f g) decls)
808mapPDeclFC f g (PNamespace ns fc decls) =
809 PNamespace ns (f fc) (map (mapPDeclFC f g) decls)
810mapPDeclFC f g (PRecord doc syn fc opts n nfc params paramdocs fields ctor ctorDoc syn') =
811 PRecord doc syn (f fc) opts n (g nfc)
812 (map (\(pn, pnfc, plic, ty) -> (pn, g pnfc, plic, mapPTermFC f g ty)) params)
814 (map (\(fn, plic, ty, fdoc) -> (fmap (\(fn', fnfc) -> (fn', g fnfc)) fn,
815 plic, mapPTermFC f g ty, fdoc))
817 (fmap (\(ctorN, ctorNFC) -> (ctorN, g ctorNFC)) ctor)
820mapPDeclFC f g (PClass doc syn fc constrs n nfc params paramDocs det body ctor ctorDoc) =
821 PClass doc syn (f fc)
822 (map (\(constrn, constr) -> (constrn, mapPTermFC f g constr)) constrs)
823 n (g nfc) (map (\(n, nfc, pty) -> (n, g nfc, mapPTermFC f g pty)) params)
824 paramDocs (map (\(dn, dnfc) -> (dn, g dnfc)) det)
825 (map (mapPDeclFC f g) body)
826 (fmap (\(n, nfc) -> (n, g nfc)) ctor)
828mapPDeclFC f g (PInstance doc paramDocs syn fc constrs cn cnfc params instTy instN body) =
829 PInstance doc paramDocs syn (f fc)
830 (map (\(constrN, constrT) -> (constrN, mapPTermFC f g constrT)) constrs)
831 cn (g cnfc) (map (mapPTermFC f g) params)
832 (mapPTermFC f g instTy)
834 (map (mapPDeclFC f g) body)
835mapPDeclFC f g (PDSL n dsl) = PDSL n (fmap (mapPTermFC f g) dsl)
836mapPDeclFC f g (PSyntax fc syn) = PSyntax (f fc) $
838 Rule syms tm ctxt -> Rule syms (mapPTermFC f g tm) ctxt
839 DeclRule syms decls -> DeclRule syms (map (mapPDeclFC f g) decls)
840mapPDeclFC f g (PMutual fc decls) =
841 PMutual (f fc) (map (mapPDeclFC f g) decls)
842mapPDeclFC f g (PDirective d) =
845 DNameHint n nfc ns ->
846 DNameHint n (g nfc) (map (\(hn, hnfc) -> (hn, g hnfc)) ns)
847 DErrorHandlers n nfc n' nfc' ns ->
848 DErrorHandlers n (g nfc) n' (g nfc') $
849 map (\(an, anfc) -> (an, g anfc)) ns
850mapPDeclFC f g (PProvider doc syn fc nfc what n) =
851 PProvider doc syn (f fc) (g nfc) (fmap (mapPTermFC f g) what) n
852mapPDeclFC f g (PTransform fc safe l r) =
853 PTransform (f fc) safe (mapPTermFC f g l) (mapPTermFC f g r)
854mapPDeclFC f g (PRunElabDecl fc script ns) =
855 PRunElabDecl (f fc) (mapPTermFC f g script) ns
857-- | Get all the names declared in a declaration
858declared :: PDecl -> [Name]
859declared (PFix _ _ _) = []
860declared (PTy _ _ _ _ _ n fc t) = [n]
861declared (PPostulate _ _ _ _ _ _ n t) = [n]
862declared (PClauses _ _ n _) = [] -- not a declaration
863declared (PCAF _ n _) = [n]
864declared (PData _ _ _ _ _ (PDatadecl n _ _ ts)) = n : map fstt ts
865 where fstt (_, _, a, _, _, _, _) = a
866declared (PData _ _ _ _ _ (PLaterdecl n _ _)) = [n]
867declared (PParams _ _ ds) = concatMap declared ds
868declared (PNamespace _ _ ds) = concatMap declared ds
869declared (PRecord _ _ _ _ n _ _ _ _ cn _ _) = n : map fst (maybeToList cn)
870declared (PClass _ _ _ _ n _ _ _ _ ms cn cd) = n : (map fst (maybeToList cn) ++ concatMap declared ms)
871declared (PInstance _ _ _ _ _ _ _ _ _ _ _) = []
872declared (PDSL n _) = [n]
873declared (PSyntax _ _) = []
874declared (PMutual _ ds) = concatMap declared ds
875declared (PDirective _) = []
878-- get the names declared, not counting nested parameter blocks
879tldeclared :: PDecl -> [Name]
880tldeclared (PFix _ _ _) = []
881tldeclared (PTy _ _ _ _ _ n _ t) = [n]
882tldeclared (PPostulate _ _ _ _ _ _ n t) = [n]
883tldeclared (PClauses _ _ n _) = [] -- not a declaration
884tldeclared (PRecord _ _ _ _ n _ _ _ _ cn _ _) = n : map fst (maybeToList cn)
885tldeclared (PData _ _ _ _ _ (PDatadecl n _ _ ts)) = n : map fstt ts
886 where fstt (_, _, a, _, _, _, _) = a
887tldeclared (PParams _ _ ds) = []
888tldeclared (PMutual _ ds) = concatMap tldeclared ds
889tldeclared (PNamespace _ _ ds) = concatMap tldeclared ds
890tldeclared (PClass _ _ _ _ n _ _ _ _ ms cn _) = n : (map fst (maybeToList cn) ++ concatMap tldeclared ms)
891tldeclared (PInstance _ _ _ _ _ _ _ _ _ _ _) = []
894defined :: PDecl -> [Name]
895defined (PFix _ _ _) = []
896defined (PTy _ _ _ _ _ n _ t) = []
897defined (PPostulate _ _ _ _ _ _ n t) = []
898defined (PClauses _ _ n _) = [n] -- not a declaration
899defined (PCAF _ n _) = [n]
900defined (PData _ _ _ _ _ (PDatadecl n _ _ ts)) = n : map fstt ts
901 where fstt (_, _, a, _, _, _, _) = a
902defined (PData _ _ _ _ _ (PLaterdecl n _ _)) = []
903defined (PParams _ _ ds) = concatMap defined ds
904defined (PNamespace _ _ ds) = concatMap defined ds
905defined (PRecord _ _ _ _ n _ _ _ _ cn _ _) = n : map fst (maybeToList cn)
906defined (PClass _ _ _ _ n _ _ _ _ ms cn _) = n : (map fst (maybeToList cn) ++ concatMap defined ms)
907defined (PInstance _ _ _ _ _ _ _ _ _ _ _) = []
908defined (PDSL n _) = [n]
909defined (PSyntax _ _) = []
910defined (PMutual _ ds) = concatMap defined ds
911defined (PDirective _) = []
914updateN :: [(Name, Name)] -> Name -> Name
915updateN ns n | Just n' <- lookup n ns = n'
918updateNs :: [(Name, Name)] -> PTerm -> PTerm
920updateNs ns t = mapPT updateRef t
921 where updateRef (PRef fc fcs f) = PRef fc fcs (updateN ns f)
924-- updateDNs :: [(Name, Name)] -> PDecl -> PDecl
926-- updateDNs ns (PTy s f n t) | Just n' <- lookup n ns = PTy s f n' t
927-- updateDNs ns (PClauses f n c) | Just n' <- lookup n ns = PClauses f n' (map updateCNs c)
928-- where updateCNs ns (PClause n l ts r ds)
929-- = PClause (updateN ns n) (fmap (updateNs ns) l)
930-- (map (fmap (updateNs ns)) ts)
931-- (fmap (updateNs ns) r)
932-- (map (updateDNs ns) ds)
935data PunInfo = IsType | IsTerm | TypeOrTerm deriving (Eq, Show, Data, Typeable)
937-- | High level language terms
938data PTerm = PQuote Raw -- ^ Inclusion of a core term into the high-level language
939 | PRef FC [FC] Name -- ^ A reference to a variable. The FC is its precise source location for highlighting. The list of FCs is a collection of additional highlighting locations.
940 | PInferRef FC [FC] Name -- ^ A name to be defined later
941 | PPatvar FC Name -- ^ A pattern variable
942 | PLam FC Name FC PTerm PTerm -- ^ A lambda abstraction. Second FC is name span.
943 | PPi Plicity Name FC PTerm PTerm -- ^ (n : t1) -> t2, where the FC is for the precise location of the variable
944 | PLet FC Name FC PTerm PTerm PTerm -- ^ A let binding (second FC is precise name location)
945 | PTyped PTerm PTerm -- ^ Term with explicit type
946 | PApp FC PTerm [PArg] -- ^ e.g. IO (), List Char, length x
947 | PAppImpl PTerm [ImplicitInfo] -- ^ Implicit argument application (introduced during elaboration only)
948 | PAppBind FC PTerm [PArg] -- ^ implicitly bound application
949 | PMatchApp FC Name -- ^ Make an application by type matching
950 | PIfThenElse FC PTerm PTerm PTerm -- ^ Conditional expressions - elaborated to an overloading of ifThenElse
951 | PCase FC PTerm [(PTerm, PTerm)] -- ^ A case expression. Args are source location, scrutinee, and a list of pattern/RHS pairs
952 | PTrue FC PunInfo -- ^ Unit type..?
953 | PResolveTC FC -- ^ Solve this dictionary by type class resolution
954 | PRewrite FC PTerm PTerm (Maybe PTerm) -- ^ "rewrite" syntax, with optional result type
955 | PPair FC [FC] PunInfo PTerm PTerm -- ^ A pair (a, b) and whether it's a product type or a pair (solved by elaboration). The list of FCs is its punctuation.
956 | PDPair FC [FC] PunInfo PTerm PTerm PTerm -- ^ A dependent pair (tm : a ** b) and whether it's a sigma type or a pair that inhabits one (solved by elaboration). The [FC] is its punctuation.
957 | PAs FC Name PTerm -- ^ @-pattern, valid LHS only
958 | PAlternative [(Name, Name)] PAltType [PTerm] -- ^ (| A, B, C|). Includes unapplied unique name mappings for mkUniqueNames.
959 | PHidden PTerm -- ^ Irrelevant or hidden pattern
960 | PType FC -- ^ 'Type' type
961 | PUniverse Universe -- ^ Some universe
962 | PGoal FC PTerm Name PTerm -- ^ quoteGoal, used for %reflection functions
963 | PConstant FC Const -- ^ Builtin types
964 | Placeholder -- ^ Underscore
965 | PDoBlock [PDo] -- ^ Do notation
966 | PIdiom FC PTerm -- ^ Idiom brackets
968 | PMetavar FC Name -- ^ A metavariable, ?name, and its precise location
969 | PProof [PTactic] -- ^ Proof script
970 | PTactics [PTactic] -- ^ As PProof, but no auto solving
971 | PElabError Err -- ^ Error to report on elaboration
972 | PImpossible -- ^ Special case for declaring when an LHS can't typecheck
973 | PCoerced PTerm -- ^ To mark a coerced argument, so as not to coerce twice
974 | PDisamb [[T.Text]] PTerm -- ^ Preferences for explicit namespaces
975 | PUnifyLog PTerm -- ^ dump a trace of unifications when building term
976 | PNoImplicits PTerm -- ^ never run implicit converions on the term
977 | PQuasiquote PTerm (Maybe PTerm) -- ^ `(Term [: Term])
978 | PUnquote PTerm -- ^ ~Term
979 | PQuoteName Name Bool FC -- ^ `{n} where the FC is the precise highlighting for the name in particular. If the Bool is False, then it's `{{n}} and the name won't be resolved.
980 | PRunElab FC PTerm [String] -- ^ %runElab tm - New-style proof script. Args are location, script, enclosing namespace.
981 | PConstSugar FC PTerm -- ^ A desugared constant. The FC is a precise source location that will be used to highlight it later.
982 deriving (Eq, Data, Typeable)
984data PAltType = ExactlyOne Bool -- ^ flag sets whether delay is allowed
987 deriving (Eq, Data, Typeable)
989-- | Transform the FCs in a PTerm. The first function transforms the
990-- general-purpose FCs, and the second transforms those that are used
991-- for semantic source highlighting, so they can be treated specially.
992mapPTermFC :: (FC -> FC) -> (FC -> FC) -> PTerm -> PTerm
993mapPTermFC f g (PQuote q) = PQuote q
994mapPTermFC f g (PRef fc fcs n) = PRef (g fc) (map g fcs) n
995mapPTermFC f g (PInferRef fc fcs n) = PInferRef (g fc) (map g fcs) n
996mapPTermFC f g (PPatvar fc n) = PPatvar (g fc) n
997mapPTermFC f g (PLam fc n fc' t1 t2) = PLam (f fc) n (g fc') (mapPTermFC f g t1) (mapPTermFC f g t2)
998mapPTermFC f g (PPi plic n fc t1 t2) = PPi plic n (g fc) (mapPTermFC f g t1) (mapPTermFC f g t2)
999mapPTermFC f g (PLet fc n fc' t1 t2 t3) = PLet (f fc) n (g fc') (mapPTermFC f g t1) (mapPTermFC f g t2) (mapPTermFC f g t3)
1000mapPTermFC f g (PTyped t1 t2) = PTyped (mapPTermFC f g t1) (mapPTermFC f g t2)
1001mapPTermFC f g (PApp fc t args) = PApp (f fc) (mapPTermFC f g t) (map (fmap (mapPTermFC f g)) args)
1002mapPTermFC f g (PAppImpl t1 impls) = PAppImpl (mapPTermFC f g t1) impls
1003mapPTermFC f g (PAppBind fc t args) = PAppBind (f fc) (mapPTermFC f g t) (map (fmap (mapPTermFC f g)) args)
1004mapPTermFC f g (PMatchApp fc n) = PMatchApp (f fc) n
1005mapPTermFC f g (PIfThenElse fc t1 t2 t3) = PIfThenElse (f fc) (mapPTermFC f g t1) (mapPTermFC f g t2) (mapPTermFC f g t3)
1006mapPTermFC f g (PCase fc t cases) = PCase (f fc) (mapPTermFC f g t) (map (\(l,r) -> (mapPTermFC f g l, mapPTermFC f g r)) cases)
1007mapPTermFC f g (PTrue fc info) = PTrue (f fc) info
1008mapPTermFC f g (PResolveTC fc) = PResolveTC (f fc)
1009mapPTermFC f g (PRewrite fc t1 t2 t3) = PRewrite (f fc) (mapPTermFC f g t1) (mapPTermFC f g t2) (fmap (mapPTermFC f g) t3)
1010mapPTermFC f g (PPair fc hls info t1 t2) = PPair (f fc) (map g hls) info (mapPTermFC f g t1) (mapPTermFC f g t2)
1011mapPTermFC f g (PDPair fc hls info t1 t2 t3) = PDPair (f fc) (map g hls) info (mapPTermFC f g t1) (mapPTermFC f g t2) (mapPTermFC f g t3)
1012mapPTermFC f g (PAs fc n t) = PAs (f fc) n (mapPTermFC f g t)
1013mapPTermFC f g (PAlternative ns ty ts) = PAlternative ns ty (map (mapPTermFC f g) ts)
1014mapPTermFC f g (PHidden t) = PHidden (mapPTermFC f g t)
1015mapPTermFC f g (PType fc) = PType (f fc)
1016mapPTermFC f g (PUniverse u) = PUniverse u
1017mapPTermFC f g (PGoal fc t1 n t2) = PGoal (f fc) (mapPTermFC f g t1) n (mapPTermFC f g t2)
1018mapPTermFC f g (PConstant fc c) = PConstant (f fc) c
1019mapPTermFC f g Placeholder = Placeholder
1020mapPTermFC f g (PDoBlock dos) = PDoBlock (map mapPDoFC dos)
1021 where mapPDoFC (DoExp fc t) = DoExp (f fc) (mapPTermFC f g t)
1022 mapPDoFC (DoBind fc n nfc t) = DoBind (f fc) n (g nfc) (mapPTermFC f g t)
1023 mapPDoFC (DoBindP fc t1 t2 alts) =
1024 DoBindP (f fc) (mapPTermFC f g t1) (mapPTermFC f g t2) (map (\(l,r)-> (mapPTermFC f g l, mapPTermFC f g r)) alts)
1025 mapPDoFC (DoLet fc n nfc t1 t2) = DoLet (f fc) n (g nfc) (mapPTermFC f g t1) (mapPTermFC f g t2)
1026 mapPDoFC (DoLetP fc t1 t2) = DoLetP (f fc) (mapPTermFC f g t1) (mapPTermFC f g t2)
1027mapPTermFC f g (PIdiom fc t) = PIdiom (f fc) (mapPTermFC f g t)
1028mapPTermFC f g (PReturn fc) = PReturn (f fc)
1029mapPTermFC f g (PMetavar fc n) = PMetavar (g fc) n
1030mapPTermFC f g (PProof tacs) = PProof (map (fmap (mapPTermFC f g)) tacs)
1031mapPTermFC f g (PTactics tacs) = PTactics (map (fmap (mapPTermFC f g)) tacs)
1032mapPTermFC f g (PElabError err) = PElabError err
1033mapPTermFC f g PImpossible = PImpossible
1034mapPTermFC f g (PCoerced t) = PCoerced (mapPTermFC f g t)
1035mapPTermFC f g (PDisamb msg t) = PDisamb msg (mapPTermFC f g t)
1036mapPTermFC f g (PUnifyLog t) = PUnifyLog (mapPTermFC f g t)
1037mapPTermFC f g (PNoImplicits t) = PNoImplicits (mapPTermFC f g t)
1038mapPTermFC f g (PQuasiquote t1 t2) = PQuasiquote (mapPTermFC f g t1) (fmap (mapPTermFC f g) t2)
1039mapPTermFC f g (PUnquote t) = PUnquote (mapPTermFC f g t)
1040mapPTermFC f g (PRunElab fc tm ns) = PRunElab (f fc) (mapPTermFC f g tm) ns
1041mapPTermFC f g (PConstSugar fc tm) = PConstSugar (g fc) (mapPTermFC f g tm)
1042mapPTermFC f g (PQuoteName n x fc) = PQuoteName n x (g fc)
1045dg instance Binary PTerm
1046deriving instance NFData PTerm
1049mapPT :: (PTerm -> PTerm) -> PTerm -> PTerm
1050mapPT f t = f (mpt t) where
1051 mpt (PLam fc n nfc t s) = PLam fc n nfc (mapPT f t) (mapPT f s)
1052 mpt (PPi p n nfc t s) = PPi p n nfc (mapPT f t) (mapPT f s)
1053 mpt (PLet fc n nfc ty v s) = PLet fc n nfc (mapPT f ty) (mapPT f v) (mapPT f s)
1054 mpt (PRewrite fc t s g) = PRewrite fc (mapPT f t) (mapPT f s)
1056 mpt (PApp fc t as) = PApp fc (mapPT f t) (map (fmap (mapPT f)) as)
1057 mpt (PAppBind fc t as) = PAppBind fc (mapPT f t) (map (fmap (mapPT f)) as)
1058 mpt (PCase fc c os) = PCase fc (mapPT f c) (map (pmap (mapPT f)) os)
1059 mpt (PIfThenElse fc c t e) = PIfThenElse fc (mapPT f c) (mapPT f t) (mapPT f e)
1060 mpt (PTyped l r) = PTyped (mapPT f l) (mapPT f r)
1061 mpt (PPair fc hls p l r) = PPair fc hls p (mapPT f l) (mapPT f r)
1062 mpt (PDPair fc hls p l t r) = PDPair fc hls p (mapPT f l) (mapPT f t) (mapPT f r)
1063 mpt (PAlternative ns a as) = PAlternative ns a (map (mapPT f) as)
1064 mpt (PHidden t) = PHidden (mapPT f t)
1065 mpt (PDoBlock ds) = PDoBlock (map (fmap (mapPT f)) ds)
1066 mpt (PProof ts) = PProof (map (fmap (mapPT f)) ts)
1067 mpt (PTactics ts) = PTactics (map (fmap (mapPT f)) ts)
1068 mpt (PUnifyLog tm) = PUnifyLog (mapPT f tm)
1069 mpt (PDisamb ns tm) = PDisamb ns (mapPT f tm)
1070 mpt (PNoImplicits tm) = PNoImplicits (mapPT f tm)
1071 mpt (PGoal fc r n sc) = PGoal fc (mapPT f r) n (mapPT f sc)
1075data PTactic' t = Intro [Name] | Intros | Focus Name
1076 | Refine Name [Bool] | Rewrite t | DoUnify
1083 | LetTac Name t | LetTacTy Name t t
1084 | Exact t | Compute | Trivial | TCInstance
1085 | ProofSearch Bool Bool Int (Maybe Name)
1086 [Name] -- allowed local names
1088 -- ^ the bool is whether to search recursively
1091 | ProofState | ProofTerm | Undo
1092 | Try (PTactic' t) (PTactic' t)
1093 | TSeq (PTactic' t) (PTactic' t)
1094 | ApplyTactic t -- see Language.Reflection module
1098 | GoalType String (PTactic' t)
1101 | TDocStr (Either Name Const)
1104 | TFail [ErrorReportPart]
1107 deriving (Show, Eq, Functor, Foldable, Traversable, Data, Typeable)
1109deriving instance Binary PTactic'
1110deriving instance NFData PTactic'
1112instance Sized a => Sized (PTactic' a) where
1113 size (Intro nms) = 1 + size nms
1115 size (Focus nm) = 1 + size nm
1116 size (Refine nm bs) = 1 + size nm + length bs
1117 size (Rewrite t) = 1 + size t
1118 size (Induction t) = 1 + size t
1119 size (LetTac nm t) = 1 + size nm + size t
1120 size (Exact t) = 1 + size t
1128 size (Try l r) = 1 + size l + size r
1129 size (TSeq l r) = 1 + size l + size r
1130 size (ApplyTactic t) = 1 + size t
1131 size (Reflect t) = 1 + size t
1132 size (Fill t) = 1 + size t
1136 size (TFail ts) = 1 + size ts
1139 size (CaseTac x) = 1 + size x
1140 size (Equiv t) = 1 + size t
1141 size (Claim x y) = 1 + size x + size y
1143 size (MatchRefine x) = 1 + size x
1144 size (LetTacTy x y z) = 1 + size x + size y + size z
1147type PTactic = PTactic' PTerm
1149data PDo' t = DoExp FC t
1150 | DoBind FC Name FC t -- ^ second FC is precise name location
1151 | DoBindP FC t t [(t,t)]
1152 | DoLet FC Name FC t t -- ^ second FC is precise name location
1154 deriving (Eq, Functor, Data, Typeable)
1156deriving instance Binary PDo'
1157deriving instance NFData PDo'
1160instance Sized a => Sized (PDo' a) where
1161 size (DoExp fc t) = 1 + size fc + size t
1162 size (DoBind fc nm nfc t) = 1 + size fc + size nm + size nfc + size t
1163 size (DoBindP fc l r alts) = 1 + size fc + size l + size r + size alts
1164 size (DoLet fc nm nfc l r) = 1 + size fc + size nm + size l + size r
1165 size (DoLetP fc l r) = 1 + size fc + size l + size r
1167type PDo = PDo' PTerm
1169-- The priority gives a hint as to elaboration order. Best to elaborate
1170-- things early which will help give a more concrete type to other
1171-- variables, e.g. a before (interpTy a).
1173data PArg' t = PImp { priority :: Int,
1174 machine_inf :: Bool, -- true if the machine inferred it
1175 argopts :: [ArgOpt],
1178 | PExp { priority :: Int,
1179 argopts :: [ArgOpt],
1182 | PConstraint { priority :: Int,
1183 argopts :: [ArgOpt],
1186 | PTacImplicit { priority :: Int,
1187 argopts :: [ArgOpt],
1191 deriving (Show, Eq, Functor, Data, Typeable)
1193data ArgOpt = AlwaysShow | HideDisplay | InaccessibleArg | UnknownImp
1194 deriving (Show, Eq, Data, Typeable)
1196instance Sized a => Sized (PArg' a) where
1197 size (PImp p _ l nm trm) = 1 + size nm + size trm
1198 size (PExp p l nm trm) = 1 + size nm + size trm
1199 size (PConstraint p l nm trm) = 1 + size nm +size nm + size trm
1200 size (PTacImplicit p l nm scr trm) = 1 + size nm + size scr + size trm
1203deriving instance Binary PArg'
1204deriving instance NFData PArg'
1207pimp n t mach = PImp 1 mach [] n t
1208pexp t = PExp 1 [] (sMN 0 "arg") t
1209pconst t = PConstraint 1 [] (sMN 0 "carg") t
1210ptacimp n s t = PTacImplicit 2 [] n s t
1212type PArg = PArg' PTerm
1214-- | Get the highest FC in a term, if one exists
1215highestFC :: PTerm -> Maybe FC
1216highestFC (PQuote _) = Nothing
1217highestFC (PRef fc _ _) = Just fc
1218highestFC (PInferRef fc _ _) = Just fc
1219highestFC (PPatvar fc _) = Just fc
1220highestFC (PLam fc _ _ _ _) = Just fc
1221highestFC (PPi _ _ _ _ _) = Nothing
1222highestFC (PLet fc _ _ _ _ _) = Just fc
1223highestFC (PTyped tm ty) = highestFC tm <|> highestFC ty
1224highestFC (PApp fc _ _) = Just fc
1225highestFC (PAppBind fc _ _) = Just fc
1226highestFC (PMatchApp fc _) = Just fc
1227highestFC (PCase fc _ _) = Just fc
1228highestFC (PIfThenElse fc _ _ _) = Just fc
1229highestFC (PTrue fc _) = Just fc
1230highestFC (PResolveTC fc) = Just fc
1231highestFC (PRewrite fc _ _ _) = Just fc
1232highestFC (PPair fc _ _ _ _) = Just fc
1233highestFC (PDPair fc _ _ _ _ _) = Just fc
1234highestFC (PAs fc _ _) = Just fc
1235highestFC (PAlternative _ _ args) =
1236 case mapMaybe highestFC args of
1239highestFC (PHidden _) = Nothing
1240highestFC (PType fc) = Just fc
1241highestFC (PUniverse _) = Nothing
1242highestFC (PGoal fc _ _ _) = Just fc
1243highestFC (PConstant fc _) = Just fc
1244highestFC Placeholder = Nothing
1245highestFC (PDoBlock lines) =
1246 case map getDoFC lines of
1250 getDoFC (DoExp fc t) = fc
1251 getDoFC (DoBind fc nm nfc t) = fc
1252 getDoFC (DoBindP fc l r alts) = fc
1253 getDoFC (DoLet fc nm nfc l r) = fc
1254 getDoFC (DoLetP fc l r) = fc
1256highestFC (PIdiom fc _) = Just fc
1257highestFC (PReturn fc) = Just fc
1258highestFC (PMetavar fc _) = Just fc
1259highestFC (PProof _) = Nothing
1260highestFC (PTactics _) = Nothing
1261highestFC (PElabError _) = Nothing
1262highestFC PImpossible = Nothing
1263highestFC (PCoerced tm) = highestFC tm
1264highestFC (PDisamb _ opts) = highestFC opts
1265highestFC (PUnifyLog tm) = highestFC tm
1266highestFC (PNoImplicits tm) = highestFC tm
1267highestFC (PQuasiquote _ _) = Nothing
1268highestFC (PUnquote tm) = highestFC tm
1269highestFC (PQuoteName _ _ fc) = Just fc
1270highestFC (PRunElab fc _ _) = Just fc
1271highestFC (PConstSugar fc _) = Just fc
1272highestFC (PAppImpl t _) = highestFC t
1276data ClassInfo = CI { instanceCtorName :: Name,
1277 class_methods :: [(Name, (FnOpts, PTerm))],
1278 class_defaults :: [(Name, (Name, PDecl))], -- method name -> default impl
1279 class_default_superclasses :: [PDecl],
1280 class_params :: [Name],
1281 class_instances :: [(Name, Bool)], -- the Bool is whether to include in instance search, so named instances are excluded
1282 class_determiners :: [Int] }
1285deriving instance Binary ClassInfo
1286deriving instance NFData ClassInfo
1290data RecordInfo = RI { record_parameters :: [(Name,PTerm)],
1291 record_constructor :: Name,
1292 record_projections :: [Name] }
1295-- Type inference data
1297data TIData = TIPartial -- ^ a function with a partially defined type
1298 | TISolution [Term] -- ^ possible solutions to a metavariable in a type
1301-- | Miscellaneous information about functions
1302data FnInfo = FnInfo { fn_params :: [Int] }
1305deriving instance Binary FnInfo
1306deriving instance NFData FnInfo
1309data OptInfo = Optimise { inaccessible :: [(Int,Name)], -- includes names for error reporting
1310 detaggable :: Bool }
1313deriving instance Binary OptInfo
1314deriving instance NFData OptInfo
1317-- | Syntactic sugar info
1318data DSL' t = DSL { dsl_bind :: t,
1323 index_first :: Maybe t,
1324 index_next :: Maybe t,
1325 dsl_lambda :: Maybe t,
1329 deriving (Show, Functor)
1331deriving instance Binary DSL'
1332deriving instance NFData DSL'
1335type DSL = DSL' PTerm
1337data SynContext = PatternSyntax | TermSyntax | AnySyntax
1340deriving instance Binary SynContext
1341deriving instance NFData SynContext
1344data Syntax = Rule [SSymbol] PTerm SynContext
1345 | DeclRule [SSymbol] [PDecl]
1348syntaxNames :: Syntax -> [Name]
1349syntaxNames (Rule syms _ _) = mapMaybe ename syms
1350 where ename (Keyword n) = Just n
1352syntaxNames (DeclRule syms _) = mapMaybe ename syms
1353 where ename (Keyword n) = Just n
1356syntaxSymbols :: Syntax -> [SSymbol]
1357syntaxSymbols (Rule ss _ _) = ss
1358syntaxSymbols (DeclRule ss _) = ss
1360deriving instance Binary Syntax
1361deriving instance NFData Syntax
1364data SSymbol = Keyword Name
1373deriving instance Binary SSymbol
1374deriving instance NFData SSymbol
1377newtype SyntaxRules = SyntaxRules { syntaxRulesList :: [Syntax] }
1379emptySyntaxRules :: SyntaxRules
1380emptySyntaxRules = SyntaxRules []
1382updateSyntaxRules :: [Syntax] -> SyntaxRules -> SyntaxRules
1383updateSyntaxRules rules (SyntaxRules sr) = SyntaxRules newRules
1385 newRules = sortBy (ruleSort `on` syntaxSymbols) (rules ++ sr)
1390 ruleSort (s1:ss1) (s2:ss2) =
1391 case symCompare s1 s2 of
1392 EQ -> ruleSort ss1 ss2
1395 -- Better than creating Ord instance for SSymbol since
1396 -- in general this ordering does not really make sense.
1397 symCompare (Keyword n1) (Keyword n2) = compare n1 n2
1398 symCompare (Keyword _) _ = LT
1399 symCompare (Symbol _) (Keyword _) = GT
1400 symCompare (Symbol s1) (Symbol s2) = compare s1 s2
1401 symCompare (Symbol _) _ = LT
1402 symCompare (Binding _) (Keyword _) = GT
1403 symCompare (Binding _) (Symbol _) = GT
1404 symCompare (Binding b1) (Binding b2) = compare b1 b2
1405 symCompare (Binding _) _ = LT
1406 symCompare (Expr _) (Keyword _) = GT
1407 symCompare (Expr _) (Symbol _) = GT
1408 symCompare (Expr _) (Binding _) = GT
1409 symCompare (Expr e1) (Expr e2) = compare e1 e2
1410 symCompare (Expr _) _ = LT
1411 symCompare (SimpleExpr _) (Keyword _) = GT
1412 symCompare (SimpleExpr _) (Symbol _) = GT
1413 symCompare (SimpleExpr _) (Binding _) = GT
1414 symCompare (SimpleExpr _) (Expr _) = GT
1415 symCompare (SimpleExpr e1) (SimpleExpr e2) = compare e1 e2
1417initDSL = DSL (PRef f [] (sUN ">>="))
1418 (PRef f [] (sUN "return"))
1419 (PRef f [] (sUN "<*>"))
1420 (PRef f [] (sUN "pure"))
1427 where f = fileFC "(builtin)"
1429data Using = UImplicit Name PTerm
1430 | UConstraint Name [Name]
1431 deriving (Show, Eq, Data, Typeable)
1433deriving instance Binary Using
1434deriving instance NFData Using
1437data SyntaxInfo = Syn { using :: [Using],
1438 syn_params :: [(Name, PTerm)],
1439 syn_namespace :: [String],
1441 imp_methods :: [Name], -- class methods. When expanding
1442 -- implicits, these should be expanded even under
1444 decoration :: Name -> Name,
1446 implicitAllowed :: Bool,
1447 maxline :: Maybe Int,
1450 syn_in_quasiquote :: Int }
1453deriving instance NFData SyntaxInfo
1454deriving instance Binary SyntaxInfo
1457defaultSyntax = Syn [] [] [] [] [] id False False Nothing 0 initDSL 0
1459expandNS :: SyntaxInfo -> Name -> Name
1460expandNS syn n@(NS _ _) = n
1461expandNS syn n = case syn_namespace syn of
1466-- For inferring types of things
1468bi = fileFC "builtin"
1470inferTy = sMN 0 "__Infer"
1471inferCon = sMN 0 "__infer"
1472inferDecl = PDatadecl inferTy NoFC
1474 [(emptyDocstring, [], inferCon, NoFC, PPi impl (sMN 0 "iType") NoFC (PType bi) (
1475 PPi expl (sMN 0 "ival") NoFC (PRef bi [] (sMN 0 "iType"))
1476 (PRef bi [] inferTy)), bi, [])]
1479infTerm t = PApp bi (PRef bi [] inferCon) [pimp (sMN 0 "iType") Placeholder True, pexp t]
1480infP = P (TCon 6 0) inferTy (TType (UVal 0))
1482getInferTerm, getInferType :: Term -> Term
1483getInferTerm (Bind n b sc) = Bind n b $ getInferTerm sc
1484getInferTerm (App _ (App _ _ _) tm) = tm
1485getInferTerm tm = tm -- error ("getInferTerm " ++ show tm)
1487getInferType (Bind n b sc) = Bind n (toTy b) $ getInferType sc
1488 where toTy (Lam t) = Pi Nothing t (TType (UVar 0))
1489 toTy (PVar t) = PVTy t
1491getInferType (App _ (App _ _ ty) _) = ty
1495-- Handy primitives: Unit, False, Pair, MkPair, =, mkForeign
1497primNames = [inferTy, inferCon]
1500unitCon = sUN "MkUnit"
1502falseDoc = fmap (const $ Msg "") . parseDocstring . T.pack $
1503 "The empty type, also known as the trivially false proposition." ++
1505 "Use `void` or `absurd` to prove anything if you have a variable " ++
1506 "of type `Void` in scope."
1509pairTy = sNS (sUN "Pair") ["Builtins"]
1510pairCon = sNS (sUN "MkPair") ["Builtins"]
1512upairTy = sNS (sUN "UPair") ["Builtins"]
1513upairCon = sNS (sUN "MkUPair") ["Builtins"]
1517eqDoc = fmap (const (Left $ Msg "")) . parseDocstring . T.pack $
1518 "The propositional equality type. A proof that `x` = `y`." ++
1520 "To use such a proof, pattern-match on it, and the two equal things will " ++
1521 "then need to be the _same_ pattern." ++
1523 "**Note**: Idris's equality type is potentially _heterogeneous_, which means that it " ++
1524 "is possible to state equalities between values of potentially different " ++
1525 "types. However, Idris will attempt the homogeneous case unless it fails to typecheck." ++
1527 "You may need to use `(~=~)` to explicitly request heterogeneous equality."
1529eqDecl = PDatadecl eqTy NoFC (piBindp impl [(n "A", PType bi), (n "B", PType bi)]
1530 (piBind [(n "x", PRef bi [] (n "A")), (n "y", PRef bi [] (n "B"))]
1532 [(reflDoc, reflParamDoc,
1533 eqCon, NoFC, PPi impl (n "A") NoFC (PType bi) (
1534 PPi impl (n "x") NoFC (PRef bi [] (n "A"))
1535 (PApp bi (PRef bi [] eqTy) [pimp (n "A") Placeholder False,
1536 pimp (n "B") Placeholder False,
1537 pexp (PRef bi [] (n "x")),
1538 pexp (PRef bi [] (n "x"))])), bi, [])]
1540 reflDoc = annotCode (const (Left $ Msg "")) . parseDocstring . T.pack $
1541 "A proof that `x` in fact equals `x`. To construct this, you must have already " ++
1542 "shown that both sides are in fact equal."
1543 reflParamDoc = [(n "A", annotCode (const (Left $ Msg "")) . parseDocstring . T.pack $ "the type at which the equality is proven"),
1544 (n "x", annotCode (const (Left $ Msg "")) . parseDocstring . T.pack $ "the element shown to be equal to itself.")]
1546eqParamDoc = [(n "A", annotCode (const (Left $ Msg "")) . parseDocstring . T.pack $ "the type of the left side of the equality"),
1547 (n "B", annotCode (const (Left $ Msg "")) . parseDocstring . T.pack $ "the type of the right side of the equality")
1553-- | The special name to be used in the module documentation context -
1554-- not for use in the main definition context. The namespace around it
1555-- will determine the module to which the docs adhere.
1557modDocName = sMN 0 "ModuleDocs"
1559-- Defined in builtins.idr
1560sigmaTy = sNS (sUN "Sigma") ["Builtins"]
1561sigmaCon = sNS (sUN "MkSigma") ["Builtins"]
1563piBind :: [(Name, PTerm)] -> PTerm -> PTerm
1564piBind = piBindp expl
1566piBindp :: Plicity -> [(Name, PTerm)] -> PTerm -> PTerm
1568piBindp p ((n, ty):ns) t = PPi p n NoFC ty (piBindp p ns t)
1571-- Pretty-printing declarations and terms
1573-- These "show" instances render to an absurdly wide screen because inserted line breaks
1574-- could interfere with interactive editing, which calls "show".
1576instance Show PTerm where
1577 showsPrec _ tm = (displayS . renderPretty 1.0 10000000 . prettyImp defaultPPOption) tm
1579instance Show PDecl where
1580 showsPrec _ d = (displayS . renderPretty 1.0 10000000 . showDeclImp verbosePPOption) d
1582instance Show PClause where
1583 showsPrec _ c = (displayS . renderPretty 1.0 10000000 . showCImp verbosePPOption) c
1585instance Show PData where
1586 showsPrec _ d = (displayS . renderPretty 1.0 10000000 . showDImp defaultPPOption) d
1588instance Pretty PTerm OutputAnnotation where
1589 pretty = prettyImp defaultPPOption
1591-- | Colourise annotations according to an Idris state. It ignores the names
1592-- in the annotation, as there's no good way to show extended information on a
1594annotationColour :: IState -> OutputAnnotation -> Maybe IdrisColour
1595annotationColour ist _ | not (idris_colourRepl ist) = Nothing
1596annotationColour ist (AnnConst c) =
1597 let theme = idris_colourTheme ist
1598 in Just $ if constIsType c
1599 then typeColour theme
1600 else dataColour theme
1601annotationColour ist (AnnData _ _) = Just $ dataColour (idris_colourTheme ist)
1602annotationColour ist (AnnType _ _) = Just $ typeColour (idris_colourTheme ist)
1603annotationColour ist (AnnBoundName _ True) = Just $ implicitColour (idris_colourTheme ist)
1604annotationColour ist (AnnBoundName _ False) = Just $ boundVarColour (idris_colourTheme ist)
1605annotationColour ist AnnKeyword = Just $ keywordColour (idris_colourTheme ist)
1606annotationColour ist (AnnName n _ _ _) =
1607 let ctxt = tt_ctxt ist
1608 theme = idris_colourTheme ist
1610 _ | isDConName n ctxt -> Just $ dataColour theme
1611 _ | isFnName n ctxt -> Just $ functionColour theme
1612 _ | isTConName n ctxt -> Just $ typeColour theme
1613 _ | isPostulateName n ist -> Just $ postulateColour theme
1614 _ | otherwise -> Nothing -- don't colourise unknown names
1615annotationColour ist (AnnTextFmt fmt) = Just (colour fmt)
1616 where colour BoldText = IdrisColour Nothing True False True False
1617 colour UnderlineText = IdrisColour Nothing True True False False
1618 colour ItalicText = IdrisColour Nothing True False False True
1619annotationColour ist _ = Nothing
1622-- | Colourise annotations according to an Idris state. It ignores the names
1623-- in the annotation, as there's no good way to show extended
1624-- information on a terminal. Note that strings produced this way will
1625-- not be coloured on Windows, so the use of the colour rendering
1626-- functions in Idris.Output is to be preferred.
1627consoleDecorate :: IState -> OutputAnnotation -> String -> String
1628consoleDecorate ist ann = maybe id colourise (annotationColour ist ann)
1630isPostulateName :: Name -> IState -> Bool
1631isPostulateName n ist = S.member n (idris_postulates ist)
1633-- | Pretty-print a high-level closed Idris term with no information about precedence/associativity
1634prettyImp :: PPOption -- ^^ pretty printing options
1635 -> PTerm -- ^^ the term to pretty-print
1636 -> Doc OutputAnnotation
1637prettyImp impl = pprintPTerm impl [] [] []
1639-- | Serialise something to base64 using its Binary instance.
1641-- | Do the right thing for rendering a term in an IState
1642prettyIst :: IState -> PTerm -> Doc OutputAnnotation
1643prettyIst ist = pprintPTerm (ppOptionIst ist) [] [] (idris_infixes ist)
1645-- | Pretty-print a high-level Idris term in some bindings context with infix info
1646pprintPTerm :: PPOption -- ^^ pretty printing options
1647 -> [(Name, Bool)] -- ^^ the currently-bound names and whether they are implicit
1648 -> [Name] -- ^^ names to always show in pi, even if not used
1649 -> [FixDecl] -- ^^ Fixity declarations
1650 -> PTerm -- ^^ the term to pretty-print
1651 -> Doc OutputAnnotation
1652pprintPTerm ppo bnd docArgs infixes = prettySe (ppopt_depth ppo) startPrec bnd
1657 prettySe :: Maybe Int -> Int -> [(Name, Bool)] -> PTerm -> Doc OutputAnnotation
1658 prettySe d p bnd (PQuote r) =
1659 text "![" <> pretty r <> text "]"
1660 prettySe d p bnd (PPatvar fc n) = pretty n
1662 | Just str <- slist d p bnd e = depth d $ str
1663 | Just n <- snat ppo d p e = depth d $ annotate (AnnData "Nat" "") (text (show n))
1664 prettySe d p bnd (PRef fc _ n) = prettyName True (ppopt_impl ppo) bnd n
1665 prettySe d p bnd (PLam fc n nfc ty sc) =
1666 depth d . bracket p startPrec . group . align . hang 2 $
1667 text "\\" <> prettyBindingOf n False <+> text "=>" <$>
1668 prettySe (decD d) startPrec ((n, False):bnd) sc
1669 prettySe d p bnd (PLet fc n nfc ty v sc) =
1670 depth d . bracket p startPrec . group . align $
1671 kwd "let" <+> (group . align . hang 2 $ prettyBindingOf n False <+> text "=" <$> prettySe (decD d) startPrec bnd v) </>
1672 kwd "in" <+> (group . align . hang 2 $ prettySe (decD d) startPrec ((n, False):bnd) sc)
1673 prettySe d p bnd (PPi (Exp l s _) n _ ty sc)
1674 | n `elem` allNamesIn sc || ppopt_impl ppo && uname n || n `elem` docArgs
1675 || ppopt_pinames ppo && uname n =
1676 depth d . bracket p startPrec . group $
1677 enclose lparen rparen (group . align $ prettyBindingOf n False <+> colon <+> prettySe (decD d) startPrec bnd ty) <+>
1678 st <> text "->" <$> prettySe (decD d) startPrec ((n, False):bnd) sc
1680 depth d . bracket p startPrec . group $
1681 group (prettySe (decD d) (startPrec + 1) bnd ty <+> st) <> text "->" <$>
1682 group (prettySe (decD d) startPrec ((n, False):bnd) sc)
1684 uname (UN n) = case str n of
1691 Static -> text "[static]" <> space
1693 prettySe d p bnd (PPi (Imp l s _ fa) n _ ty sc)
1695 depth d . bracket p startPrec $
1696 lbrace <> prettyBindingOf n True <+> colon <+> prettySe (decD d) startPrec bnd ty <> rbrace <+>
1697 st <> text "->" </> prettySe (decD d) startPrec ((n, True):bnd) sc
1698 | otherwise = depth d $ prettySe (decD d) startPrec ((n, True):bnd) sc
1702 Static -> text "[static]" <> space
1704 prettySe d p bnd (PPi (Constraint _ _) n _ ty sc) =
1705 depth d . bracket p startPrec $
1706 prettySe (decD d) (startPrec + 1) bnd ty <+> text "=>" </> prettySe (decD d) startPrec ((n, True):bnd) sc
1707 prettySe d p bnd (PPi (TacImp _ _ (PTactics [ProofSearch _ _ _ _ _ _])) n _ ty sc) =
1708 lbrace <> kwd "auto" <+> pretty n <+> colon <+> prettySe (decD d) startPrec bnd ty <>
1709 rbrace <+> text "->" </> prettySe (decD d) startPrec ((n, True):bnd) sc
1710 prettySe d p bnd (PPi (TacImp _ _ s) n _ ty sc) =
1711 depth d . bracket p startPrec $
1712 lbrace <> kwd "default" <+> prettySe (decD d) (funcAppPrec + 1) bnd s <+> pretty n <+> colon <+> prettySe (decD d) startPrec bnd ty <>
1713 rbrace <+> text "->" </> prettySe (decD d) startPrec ((n, True):bnd) sc
1714 -- This case preserves the behavior of the former constructor PEq.
1715 -- It should be removed if feasible when the pretty-printing of infix
1716 -- operators in general is improved.
1717 prettySe d p bnd (PApp _ (PRef _ _ n) [lt, rt, l, r])
1718 | n == eqTy, ppopt_impl ppo =
1719 depth d . bracket p eqPrec $
1720 enclose lparen rparen eq <+>
1721 align (group (vsep (map (prettyArgS (decD d) bnd)
1724 depth d . bracket p eqPrec . align . group $
1725 prettyTerm (getTm l) <+> eq <$> group (prettyTerm (getTm r))
1726 where eq = annName eqTy (text "=")
1728 prettyTerm = prettySe (decD d) (eqPrec + 1) bnd
1729 prettySe d p bnd (PApp _ (PRef _ _ f) args) -- normal names, no explicit args
1730 | UN nm <- basename f
1731 , not (ppopt_impl ppo) && null (getShowArgs args) =
1732 prettyName True (ppopt_impl ppo) bnd f
1733 prettySe d p bnd (PAppBind _ (PRef _ _ f) [])
1734 | not (ppopt_impl ppo) = text "!" <> prettyName True (ppopt_impl ppo) bnd f
1735 prettySe d p bnd (PApp _ (PRef _ _ op) args) -- infix operators
1736 | UN nm <- basename op
1738 (not (ppopt_impl ppo)) && (not $ isAlpha (thead nm)) =
1739 case getShowArgs args of
1741 [x] -> group (opName True <$> group (prettySe (decD d) startPrec bnd (getTm x)))
1742 [l,r] -> let precedence = maybe (startPrec - 1) prec f
1743 in depth d . bracket p precedence $ inFix (getTm l) (getTm r)
1744 (l@(PExp _ _ _ _) : r@(PExp _ _ _ _) : rest) ->
1745 depth d . bracket p funcAppPrec $
1746 enclose lparen rparen (inFix (getTm l) (getTm r)) <+>
1747 align (group (vsep (map (prettyArgS d bnd) rest)))
1748 as -> opName True <+> align (vsep (map (prettyArgS d bnd) as))
1749 where opName isPrefix = prettyName isPrefix (ppopt_impl ppo) bnd op
1750 f = getFixity (opStr op)
1752 Nothing -> funcAppPrec + 1
1753 Just (Infixl p') -> p'
1754 Just f' -> prec f' + 1
1756 Nothing -> funcAppPrec + 1
1757 Just (Infixr p') -> p'
1758 Just f' -> prec f' + 1
1759 inFix l r = align . group $
1760 (prettySe (decD d) left bnd l <+> opName False) <$>
1761 group (prettySe (decD d) right bnd r)
1762 prettySe d p bnd (PApp _ hd@(PRef fc _ f) [tm]) -- symbols, like 'foo
1763 | PConstant NoFC (Idris.Core.TT.Str str) <- getTm tm,
1764 f == sUN "Symbol_" = annotate (AnnType ("'" ++ str) ("The symbol " ++ str)) $
1765 char '\'' <> prettySe (decD d) startPrec bnd (PRef fc [] (sUN str))
1766 prettySe d p bnd (PApp _ f as) = -- Normal prefix applications
1767 let args = getShowArgs as
1768 fp = prettySe (decD d) (startPrec + 1) bnd f
1769 shownArgs = if ppopt_impl ppo then as else args
1771 depth d . bracket p funcAppPrec . group $
1774 else fp <+> align (vsep (map (prettyArgS d bnd) shownArgs))
1775 prettySe d p bnd (PCase _ scr cases) =
1776 align $ kwd "case" <+> prettySe (decD d) startPrec bnd scr <+> kwd "of" <$>
1777 depth d (indent 2 (vsep (map ppcase cases)))
1779 ppcase (l, r) = let prettyCase = prettySe (decD d) startPrec
1780 ([(n, False) | n <- vars l] ++ bnd)
1781 in nest nestingSize $
1782 prettyCase l <+> text "=>" <+> prettyCase r
1783 -- Warning: this is a bit of a hack. At this stage, we don't have the
1784 -- global context, so we can't determine which names are constructors,
1785 -- which are types, and which are pattern variables on the LHS of the
1786 -- case pattern. We use the heuristic that names without a namespace
1787 -- are patvars, because right now case blocks in PTerms are always
1788 -- delaborated from TT before being sent to the pretty-printer. If they
1789 -- start getting printed directly, THIS WILL BREAK.
1790 -- Potential solution: add a list of known patvars to the cases in
1791 -- PCase, and have the delaborator fill it out, kind of like the pun
1792 -- disambiguation on PDPair.
1793 vars tm = filter noNS (allNamesIn tm)
1794 noNS (NS _ _) = False
1797 prettySe d p bnd (PIfThenElse _ c t f) =
1798 depth d . bracket p funcAppPrec . group . align . hang 2 . vsep $
1799 [ kwd "if" <+> prettySe (decD d) startPrec bnd c
1800 , kwd "then" <+> prettySe (decD d) startPrec bnd t
1801 , kwd "else" <+> prettySe (decD d) startPrec bnd f
1803 prettySe d p bnd (PHidden tm) = text "." <> prettySe (decD d) funcAppPrec bnd tm
1804 prettySe d p bnd (PResolveTC _) = kwd "%instance"
1805 prettySe d p bnd (PTrue _ IsType) = annName unitTy $ text "()"
1806 prettySe d p bnd (PTrue _ IsTerm) = annName unitCon $ text "()"
1807 prettySe d p bnd (PTrue _ TypeOrTerm) = text "()"
1808 prettySe d p bnd (PRewrite _ l r _) =
1809 depth d . bracket p startPrec $
1810 text "rewrite" <+> prettySe (decD d) (startPrec + 1) bnd l <+> text "in" <+> prettySe (decD d) startPrec bnd r
1811 prettySe d p bnd (PTyped l r) =
1812 lparen <> prettySe (decD d) startPrec bnd l <+> colon <+> prettySe (decD d) startPrec bnd r <> rparen
1813 prettySe d p bnd pair@(PPair _ _ pun _ _) -- flatten tuples to the right, like parser
1814 | Just elts <- pairElts pair = depth d . enclose (ann lparen) (ann rparen) .
1815 align . group . vsep . punctuate (ann comma) $
1816 map (prettySe (decD d) startPrec bnd) elts
1817 where ann = case pun of
1819 IsType -> annName pairTy
1820 IsTerm -> annName pairCon
1821 prettySe d p bnd (PDPair _ _ pun l t r) =
1825 annotated (text "**") <+>
1826 prettySe (decD d) startPrec (addBinding bnd) r <>
1828 where annotated = case pun of
1829 IsType -> annName sigmaTy
1830 IsTerm -> annName sigmaCon
1832 (left, addBinding) = case (l, pun) of
1833 (PRef _ _ n, IsType) -> (bindingOf n False <+> text ":" <+> prettySe (decD d) startPrec bnd t, ((n, False) :))
1834 _ -> (prettySe (decD d) startPrec bnd l, id)
1835 prettySe d p bnd (PAlternative ns a as) =
1836 lparen <> text "|" <> prettyAs <> text "|" <> rparen
1839 foldr (\l -> \r -> l <+> text "," <+> r) empty $ map (depth d . prettySe (decD d) startPrec bnd) as
1840 prettySe d p bnd (PType _) = annotate (AnnType "Type" "The type of types") $ text "Type"
1841 prettySe d p bnd (PUniverse u) = annotate (AnnType (show u) "The type of unique types") $ text (show u)
1842 prettySe d p bnd (PConstant _ c) = annotate (AnnConst c) (text (show c))
1843 -- XXX: add pretty for tactics
1844 prettySe d p bnd (PProof ts) =
1845 kwd "proof" <+> lbrace <> ellipsis <> rbrace
1846 prettySe d p bnd (PTactics ts) =
1847 kwd "tactics" <+> lbrace <> ellipsis <> rbrace
1848 prettySe d p bnd (PMetavar _ n) = annotate (AnnName n (Just MetavarOutput) Nothing Nothing) $ text "?" <> pretty n
1849 prettySe d p bnd (PReturn f) = kwd "return"
1850 prettySe d p bnd PImpossible = kwd "impossible"
1851 prettySe d p bnd Placeholder = text "_"
1852 prettySe d p bnd (PDoBlock dos) =
1853 bracket p startPrec $
1854 kwd "do" <+> align (vsep (map (group . align . hang 2) (ppdo bnd dos)))
1855 where ppdo bnd (DoExp _ tm:dos) = prettySe (decD d) startPrec bnd tm : ppdo bnd dos
1856 ppdo bnd (DoBind _ bn _ tm : dos) =
1857 (prettyBindingOf bn False <+> text "<-" <+>
1858 group (align (hang 2 (prettySe (decD d) startPrec bnd tm)))) :
1859 ppdo ((bn, False):bnd) dos
1860 ppdo bnd (DoBindP _ _ _ _ : dos) = -- ok because never made by delab
1861 text "no pretty printer for pattern-matching do binding" :
1863 ppdo bnd (DoLet _ ln _ ty v : dos) =
1864 (kwd "let" <+> prettyBindingOf ln False <+>
1865 (if ty /= Placeholder
1866 then colon <+> prettySe (decD d) startPrec bnd ty <+> text "="
1868 group (align (hang 2 (prettySe (decD d) startPrec bnd v)))) :
1869 ppdo ((ln, False):bnd) dos
1870 ppdo bnd (DoLetP _ _ _ : dos) = -- ok because never made by delab
1871 text "no pretty printer for pattern-matching do binding" :
1874 prettySe d p bnd (PCoerced t) = prettySe d p bnd t
1875 prettySe d p bnd (PElabError s) = pretty s
1876 -- Quasiquote pprinting ignores bound vars
1877 prettySe d p bnd (PQuasiquote t Nothing) = text "`(" <> prettySe (decD d) p [] t <> text ")"
1878 prettySe d p bnd (PQuasiquote t (Just g)) = text "`(" <> prettySe (decD d) p [] t <+> colon <+> prettySe (decD d) p [] g <> text ")"
1879 prettySe d p bnd (PUnquote t) = text "~" <> prettySe (decD d) p bnd t
1880 prettySe d p bnd (PQuoteName n res _) = text start <> prettyName True (ppopt_impl ppo) bnd n <> text end
1881 where start = if res then "`{" else "`{{"
1882 end = if res then "}" else "}}"
1883 prettySe d p bnd (PRunElab _ tm _) =
1884 bracket p funcAppPrec . group . align . hang 2 $
1886 prettySe (decD d) funcAppPrec bnd tm
1887 prettySe d p bnd (PConstSugar fc tm) = prettySe d p bnd tm -- should never occur, but harmless
1889 prettySe d p bnd _ = text "missing pretty-printer for term"
1891 prettyBindingOf :: Name -> Bool -> Doc OutputAnnotation
1892 prettyBindingOf n imp = annotate (AnnBoundName n imp) (text (display n))
1893 where display (UN n) = T.unpack n
1894 display (MN _ n) = T.unpack n
1895 -- If a namespace is specified on a binding form, we'd better show it regardless of the implicits settings
1896 display (NS n ns) = (concat . intersperse "." . map T.unpack . reverse) ns ++ "." ++ display n
1899 prettyArgS d bnd (PImp _ _ _ n tm) = prettyArgSi d bnd (n, tm)
1900 prettyArgS d bnd (PExp _ _ _ tm) = prettyArgSe d bnd tm
1901 prettyArgS d bnd (PConstraint _ _ _ tm) = prettyArgSc d bnd tm
1902 prettyArgS d bnd (PTacImplicit _ _ n _ tm) = prettyArgSti d bnd (n, tm)
1904 prettyArgSe d bnd arg = prettySe d (funcAppPrec + 1) bnd arg
1905 prettyArgSi d bnd (n, val) = lbrace <> pretty n <+> text "=" <+> prettySe (decD d) startPrec bnd val <> rbrace
1906 prettyArgSc d bnd val = lbrace <> lbrace <> prettySe (decD d) startPrec bnd val <> rbrace <> rbrace
1907 prettyArgSti d bnd (n, val) = lbrace <> kwd "auto" <+> pretty n <+> text "=" <+> prettySe (decD d) startPrec bnd val <> rbrace
1909 annName :: Name -> Doc OutputAnnotation -> Doc OutputAnnotation
1910 annName n = annotate (AnnName n Nothing Nothing Nothing)
1912 opStr :: Name -> String
1913 opStr (NS n _) = opStr n
1914 opStr (UN n) = T.unpack n
1916 slist' :: Maybe Int -> Int -> [(Name, Bool)] -> PTerm -> Maybe [Doc OutputAnnotation]
1917 slist' (Just d) _ _ _ | d <= 0 = Nothing
1919 | containsHole e = Nothing
1920 slist' d p bnd (PApp _ (PRef _ _ nil) _)
1921 | not (ppopt_impl ppo) && nsroot nil == sUN "Nil" = Just []
1922 slist' d p bnd (PRef _ _ nil)
1923 | not (ppopt_impl ppo) && nsroot nil == sUN "Nil" = Just []
1924 slist' d p bnd (PApp _ (PRef _ _ cons) args)
1925 | nsroot cons == sUN "::",
1926 (PExp {getTm=tl}):(PExp {getTm=hd}):imps <- reverse args,
1928 Just tl' <- slist' (decD d) p bnd tl
1929 = Just (prettySe d startPrec bnd hd : tl')
1931 isImp (PImp {}) = True
1933 slist' _ _ _ tm = Nothing
1935 slist d p bnd e | Just es <- slist' d p bnd e = Just $
1937 [] -> annotate (AnnData "" "") $ text "[]"
1938 [x] -> enclose left right . group $ x
1939 xs -> enclose left right .
1940 align . group . vsep .
1941 punctuate comma $ xs
1942 where left = (annotate (AnnData "" "") (text "["))
1943 right = (annotate (AnnData "" "") (text "]"))
1944 comma = (annotate (AnnData "" "") (text ","))
1945 slist _ _ _ _ = Nothing
1947 pairElts :: PTerm -> Maybe [PTerm]
1948 pairElts (PPair _ _ _ x y) | Just elts <- pairElts y = Just (x:elts)
1949 | otherwise = Just [x, y]
1950 pairElts _ = Nothing
1952 natns = "Prelude.Nat."
1954 snat :: PPOption -> Maybe Int -> Int -> PTerm -> Maybe Integer
1956 | ppopt_desugarnats ppo = Nothing
1957 | otherwise = snat' d p e
1959 snat' :: Maybe Int -> Int -> PTerm -> Maybe Integer
1960 snat' (Just x) _ _ | x <= 0 = Nothing
1961 snat' d p (PRef _ _ z)
1962 | show z == (natns++"Z") || show z == "Z" = Just 0
1963 snat' d p (PApp _ s [PExp {getTm=n}])
1964 | show s == (natns++"S") || show s == "S",
1965 Just n' <- snat' (decD d) p n
1967 snat' _ _ _ = Nothing
1969 bracket outer inner doc
1970 | outer > inner = lparen <> doc <> rparen
1973 ellipsis = text "..."
1976 depth (Just d) = if d <= 0 then const (ellipsis) else id
1978 decD = fmap (\x -> x - 1)
1980 kwd = annotate AnnKeyword . text
1982 fixities :: M.Map String Fixity
1983 fixities = M.fromList [(s, f) | (Fix f s) <- infixes]
1985 getFixity :: String -> Maybe Fixity
1986 getFixity = flip M.lookup fixities
1988-- | Strip away namespace information
1989basename :: Name -> Name
1990basename (NS n _) = basename n
1993-- | Determine whether a name was the one inserted for a hole or
1994-- guess by the delaborator
1995isHoleName :: Name -> Bool
1996isHoleName (UN n) = n == T.pack "[__]"
1999-- | Check whether a PTerm has been delaborated from a Term containing a Hole or Guess
2000containsHole :: PTerm -> Bool
2001containsHole pterm = or [isHoleName n | PRef _ _ n <- take 1000 $ universe pterm]
2003-- | Pretty-printer helper for names that attaches the correct annotations
2005 :: Bool -- ^^ whether the name should be parenthesised if it is an infix operator
2006 -> Bool -- ^^ whether to show namespaces
2007 -> [(Name, Bool)] -- ^^ the current bound variables and whether they are implicit
2008 -> Name -- ^^ the name to pprint
2009 -> Doc OutputAnnotation
2010prettyName infixParen showNS bnd n
2011 | (MN _ s) <- n, isPrefixOf "_" $ T.unpack s = text "_"
2012 | (UN n') <- n, T.unpack n' == "_" = text "_"
2013 | Just imp <- lookup n bnd = annotate (AnnBoundName n imp) fullName
2014 | otherwise = annotate (AnnName n Nothing Nothing Nothing) fullName
2015 where fullName = text nameSpace <> parenthesise (text (baseName n))
2016 baseName (UN n) = T.unpack n
2017 baseName (NS n ns) = baseName n
2018 baseName (MN i s) = T.unpack s
2019 baseName other = show other
2020 nameSpace = case n of
2021 (NS n' ns) -> if showNS then (concatMap (++ ".") . map T.unpack . reverse) ns else ""
2023 isInfix = case baseName n of
2025 (c : _) -> not (isAlpha c)
2026 parenthesise = if isInfix && infixParen then enclose lparen rparen else id
2029showCImp :: PPOption -> PClause -> Doc OutputAnnotation
2030showCImp ppo (PClause _ n l ws r w)
2031 = prettyImp ppo l <+> showWs ws <+> text "=" <+> prettyImp ppo r
2032 <+> text "where" <+> text (show w)
2035 showWs (x : xs) = text "|" <+> prettyImp ppo x <+> showWs xs
2036showCImp ppo (PWith _ n l ws r pn w)
2037 = prettyImp ppo l <+> showWs ws <+> text "with" <+> prettyImp ppo r
2038 <+> braces (text (show w))
2041 showWs (x : xs) = text "|" <+> prettyImp ppo x <+> showWs xs
2044showDImp :: PPOption -> PData -> Doc OutputAnnotation
2045showDImp ppo (PDatadecl n nfc ty cons)
2046 = text "data" <+> text (show n) <+> colon <+> prettyImp ppo ty <+> text "where" <$>
2047 (indent 2 $ vsep (map (\ (_, _, n, _, t, _, _) -> pipe <+> prettyName True False [] n <+> colon <+> prettyImp ppo t) cons))
2049showDecls :: PPOption -> [PDecl] -> Doc OutputAnnotation
2050showDecls o ds = vsep (map (showDeclImp o) ds)
2052showDeclImp _ (PFix _ f ops) = text (show f) <+> cat (punctuate (text ",") (map text ops))
2053showDeclImp o (PTy _ _ _ _ _ n _ t) = text "tydecl" <+> text (showCG n) <+> colon <+> prettyImp o t
2054showDeclImp o (PClauses _ _ n cs) = text "pat" <+> text (showCG n) <+> text "\t" <+>
2055 indent 2 (vsep (map (showCImp o) cs))
2056showDeclImp o (PData _ _ _ _ _ d) = showDImp o { ppopt_impl = True } d
2057showDeclImp o (PParams _ ns ps) = text "params" <+> braces (text (show ns) <> line <> showDecls o ps <> line)
2058showDeclImp o (PNamespace n fc ps) = text "namespace" <+> text n <> braces (line <> showDecls o ps <> line)
2059showDeclImp _ (PSyntax _ syn) = text "syntax" <+> text (show syn)
2060showDeclImp o (PClass _ _ _ cs n _ ps _ _ ds _ _)
2061 = text "class" <+> text (show cs) <+> text (show n) <+> text (show ps) <> line <> showDecls o ds
2062showDeclImp o (PInstance _ _ _ _ cs n _ _ t _ ds)
2063 = text "instance" <+> text (show cs) <+> text (show n) <+> prettyImp o t <> line <> showDecls o ds
2064showDeclImp _ _ = text "..."
2065-- showDeclImp (PImport o) = "import " ++ o
2067getImps :: [PArg] -> [(Name, PTerm)]
2069getImps (PImp _ _ _ n tm : xs) = (n, tm) : getImps xs
2070getImps (_ : xs) = getImps xs
2072getExps :: [PArg] -> [PTerm]
2074getExps (PExp _ _ _ tm : xs) = tm : getExps xs
2075getExps (_ : xs) = getExps xs
2077getShowArgs :: [PArg] -> [PArg]
2079getShowArgs (e@(PExp _ _ _ tm) : xs) = e : getShowArgs xs
2080getShowArgs (e : xs) | AlwaysShow `elem` argopts e = e : getShowArgs xs
2081 | PImp _ _ _ _ tm <- e
2082 , containsHole tm = e : getShowArgs xs
2083getShowArgs (_ : xs) = getShowArgs xs
2085getConsts :: [PArg] -> [PTerm]
2087getConsts (PConstraint _ _ _ tm : xs) = tm : getConsts xs
2088getConsts (_ : xs) = getConsts xs
2090getAll :: [PArg] -> [PTerm]
2095showName :: Maybe IState -- ^^ the Idris state, for information about names and colours
2096 -> [(Name, Bool)] -- ^^ the bound variables and whether they're implicit
2097 -> PPOption -- ^^ pretty printing options
2098 -> Bool -- ^^ whether to colourise
2099 -> Name -- ^^ the term to show
2101showName ist bnd ppo colour n = case ist of
2102 Just i -> if colour then colourise n (idris_colourTheme i) else showbasic n
2103 Nothing -> showbasic n
2104 where name = if ppopt_impl ppo then show n else showbasic n
2105 showbasic n@(UN _) = showCG n
2106 showbasic (MN i s) = str s
2107 showbasic (NS n s) = showSep "." (map str (reverse s)) ++ "." ++ showbasic n
2108 showbasic (SN s) = show s
2110 colourise n t = let ctxt' = fmap tt_ctxt ist in
2113 Just ctxt | Just impl <- lookup n bnd -> if impl then colouriseImplicit t name
2114 else colouriseBound t name
2115 | isDConName n ctxt -> colouriseData t name
2116 | isFnName n ctxt -> colouriseFun t name
2117 | isTConName n ctxt -> colouriseType t name
2118 -- The assumption is that if a name is not bound and does not exist in the
2119 -- global context, then we're somewhere in which implicit info has been lost
2120 -- (like error messages). Thus, unknown vars are colourised as implicits.
2121 | otherwise -> colouriseImplicit t name
2123showTm :: IState -- ^^ the Idris state, for information about identifiers and colours
2124 -> PTerm -- ^^ the term to show
2126showTm ist = displayDecorated (consoleDecorate ist) .
2127 renderPretty 0.8 100000 .
2128 prettyImp (ppOptionIst ist)
2130-- | Show a term with implicits, no colours
2131showTmImpls :: PTerm -> String
2132showTmImpls = flip (displayS . renderCompact . prettyImp verbosePPOption) ""
2134-- | Show a term with specific options
2135showTmOpts :: PPOption -> PTerm -> String
2136showTmOpts opt = flip (displayS . renderPretty 1.0 10000000 . prettyImp opt) ""
2139instance Sized PTerm where
2140 size (PQuote rawTerm) = size rawTerm
2141 size (PRef fc _ name) = size name
2142 size (PLam fc name _ ty bdy) = 1 + size ty + size bdy
2143 size (PPi plicity name fc ty bdy) = 1 + size ty + size fc + size bdy
2144 size (PLet fc name nfc ty def bdy) = 1 + size ty + size def + size bdy
2145 size (PTyped trm ty) = 1 + size trm + size ty
2146 size (PApp fc name args) = 1 + size args
2147 size (PAppBind fc name args) = 1 + size args
2148 size (PCase fc trm bdy) = 1 + size trm + size bdy
2149 size (PIfThenElse fc c t f) = 1 + sum (map size [c, t, f])
2150 size (PTrue fc _) = 1
2151 size (PResolveTC fc) = 1
2152 size (PRewrite fc left right _) = 1 + size left + size right
2153 size (PPair fc _ _ left right) = 1 + size left + size right
2154 size (PDPair fs _ _ left ty right) = 1 + size left + size ty + size right
2155 size (PAlternative _ a alts) = 1 + size alts
2156 size (PHidden hidden) = size hidden
2157 size (PUnifyLog tm) = size tm
2158 size (PDisamb _ tm) = size tm
2159 size (PNoImplicits tm) = size tm
2161 size (PUniverse _) = 1
2162 size (PConstant fc const) = 1 + size fc + size const
2163 size Placeholder = 1
2164 size (PDoBlock dos) = 1 + size dos
2165 size (PIdiom fc term) = 1 + size term
2166 size (PReturn fc) = 1
2167 size (PMetavar _ name) = 1
2168 size (PProof tactics) = size tactics
2169 size (PElabError err) = size err
2170 size PImpossible = 1
2173getPArity :: PTerm -> Int
2174getPArity (PPi _ _ _ _ sc) = 1 + getPArity sc
2177-- Return all names, free or globally bound, in the given term.
2179allNamesIn :: PTerm -> [Name]
2180allNamesIn tm = nub $ ni 0 [] tm
2181 where -- TODO THINK added niTacImp, but is it right?
2182 ni 0 env (PRef _ _ n)
2183 | not (n `elem` env) = [n]
2184 ni 0 env (PPatvar _ n) = [n]
2185 ni 0 env (PApp _ f as) = ni 0 env f ++ concatMap (ni 0 env) (map getTm as)
2186 ni 0 env (PAppBind _ f as) = ni 0 env f ++ concatMap (ni 0 env) (map getTm as)
2187 ni 0 env (PCase _ c os) = ni 0 env c ++ concatMap (ni 0 env) (map snd os)
2188 ni 0 env (PIfThenElse _ c t f) = ni 0 env c ++ ni 0 env t ++ ni 0 env f
2189 ni 0 env (PLam fc n _ ty sc) = ni 0 env ty ++ ni 0 (n:env) sc
2190 ni 0 env (PPi p n _ ty sc) = niTacImp 0 env p ++ ni 0 env ty ++ ni 0 (n:env) sc
2191 ni 0 env (PLet _ n _ ty val sc) = ni 0 env ty ++ ni 0 env val ++ ni 0 (n:env) sc
2192 ni 0 env (PHidden tm) = ni 0 env tm
2193 ni 0 env (PRewrite _ l r _) = ni 0 env l ++ ni 0 env r
2194 ni 0 env (PTyped l r) = ni 0 env l ++ ni 0 env r
2195 ni 0 env (PPair _ _ _ l r) = ni 0 env l ++ ni 0 env r
2196 ni 0 env (PDPair _ _ _ (PRef _ _ n) Placeholder r) = n : ni 0 env r
2197 ni 0 env (PDPair _ _ _ (PRef _ _ n) t r) = ni 0 env t ++ ni 0 (n:env) r
2198 ni 0 env (PDPair _ _ _ l t r) = ni 0 env l ++ ni 0 env t ++ ni 0 env r
2199 ni 0 env (PAlternative ns a ls) = concatMap (ni 0 env) ls
2200 ni 0 env (PUnifyLog tm) = ni 0 env tm
2201 ni 0 env (PDisamb _ tm) = ni 0 env tm
2202 ni 0 env (PNoImplicits tm) = ni 0 env tm
2204 ni i env (PQuasiquote tm ty) = ni (i+1) env tm ++ maybe [] (ni i env) ty
2205 ni i env (PUnquote tm) = ni (i - 1) env tm
2207 ni i env tm = concatMap (ni i env) (children tm)
2209 niTacImp i env (TacImp _ _ scr) = ni i env scr
2213-- Return all names defined in binders in the given term
2214boundNamesIn :: PTerm -> [Name]
2215boundNamesIn tm = S.toList (ni 0 S.empty tm)
2216 where -- TODO THINK Added niTacImp, but is it right?
2217 ni :: Int -> S.Set Name -> PTerm -> S.Set Name
2218 ni 0 set (PApp _ f as) = niTms 0 (ni 0 set f) (map getTm as)
2219 ni 0 set (PAppBind _ f as) = niTms 0 (ni 0 set f) (map getTm as)
2220 ni 0 set (PCase _ c os) = niTms 0 (ni 0 set c) (map snd os)
2221 ni 0 set (PIfThenElse _ c t f) = niTms 0 set [c, t, f]
2222 ni 0 set (PLam fc n _ ty sc) = S.insert n $ ni 0 (ni 0 set ty) sc
2223 ni 0 set (PLet fc n nfc ty val sc) = S.insert n $ ni 0 (ni 0 (ni 0 set ty) val) sc
2224 ni 0 set (PPi p n _ ty sc) = niTacImp 0 (S.insert n $ ni 0 (ni 0 set ty) sc) p
2225 ni 0 set (PRewrite _ l r _) = ni 0 (ni 0 set l) r
2226 ni 0 set (PTyped l r) = ni 0 (ni 0 set l) r
2227 ni 0 set (PPair _ _ _ l r) = ni 0 (ni 0 set l) r
2228 ni 0 set (PDPair _ _ _ (PRef _ _ n) t r) = ni 0 (ni 0 set t) r
2229 ni 0 set (PDPair _ _ _ l t r) = ni 0 (ni 0 (ni 0 set l) t) r
2230 ni 0 set (PAlternative ns a as) = niTms 0 set as
2231 ni 0 set (PHidden tm) = ni 0 set tm
2232 ni 0 set (PUnifyLog tm) = ni 0 set tm
2233 ni 0 set (PDisamb _ tm) = ni 0 set tm
2234 ni 0 set (PNoImplicits tm) = ni 0 set tm
2236 ni i set (PQuasiquote tm ty) = ni (i + 1) set tm `S.union` maybe S.empty (ni i set) ty
2237 ni i set (PUnquote tm) = ni (i - 1) set tm
2239 ni i set tm = foldr S.union set (map (ni i set) (children tm))
2241 niTms :: Int -> S.Set Name -> [PTerm] -> S.Set Name
2242 niTms i set [] = set
2243 niTms i set (x : xs) = niTms i (ni i set x) xs
2245 niTacImp i set (TacImp _ _ scr) = ni i set scr
2246 niTacImp i set _ = set
2248-- Return names which are valid implicits in the given term (type).
2249implicitNamesIn :: [Name] -> IState -> PTerm -> [Name]
2250implicitNamesIn uvars ist tm = nub $ ni 0 [] tm
2252 ni 0 env (PRef _ _ n)
2253 | not (n `elem` env)
2254 = case lookupTy n (tt_ctxt ist) of
2256 _ -> if n `elem` uvars then [n] else []
2257 ni 0 env (PApp _ f@(PRef _ _ n) as)
2258 | n `elem` uvars = ni 0 env f ++ concatMap (ni 0 env) (map getTm as)
2259 | otherwise = concatMap (ni 0 env) (map getTm as)
2260 ni 0 env (PApp _ f as) = ni 0 env f ++ concatMap (ni 0 env) (map getTm as)
2261 ni 0 env (PAppBind _ f as) = ni 0 env f ++ concatMap (ni 0 env) (map getTm as)
2262 ni 0 env (PCase _ c os) = ni 0 env c ++
2263 -- names in 'os', not counting the names bound in the cases
2264 (nub (concatMap (ni 0 env) (map snd os))
2265 \\ nub (concatMap (ni 0 env) (map fst os)))
2266 ni 0 env (PIfThenElse _ c t f) = concatMap (ni 0 env) [c, t, f]
2267 ni 0 env (PLam fc n _ ty sc) = ni 0 env ty ++ ni 0 (n:env) sc
2268 ni 0 env (PPi p n _ ty sc) = ni 0 env ty ++ ni 0 (n:env) sc
2269 ni 0 env (PRewrite _ l r _) = ni 0 env l ++ ni 0 env r
2270 ni 0 env (PTyped l r) = ni 0 env l ++ ni 0 env r
2271 ni 0 env (PPair _ _ _ l r) = ni 0 env l ++ ni 0 env r
2272 ni 0 env (PDPair _ _ _ (PRef _ _ n) t r) = ni 0 env t ++ ni 0 (n:env) r
2273 ni 0 env (PDPair _ _ _ l t r) = ni 0 env l ++ ni 0 env t ++ ni 0 env r
2274 ni 0 env (PAlternative ns a as) = concatMap (ni 0 env) as
2275 ni 0 env (PHidden tm) = ni 0 env tm
2276 ni 0 env (PUnifyLog tm) = ni 0 env tm
2277 ni 0 env (PDisamb _ tm) = ni 0 env tm
2278 ni 0 env (PNoImplicits tm) = ni 0 env tm
2280 ni i env (PQuasiquote tm ty) = ni (i + 1) env tm ++
2281 maybe [] (ni i env) ty
2282 ni i env (PUnquote tm) = ni (i - 1) env tm
2284 ni i env tm = concatMap (ni i env) (children tm)
2286-- Return names which are free in the given term.
2287namesIn :: [(Name, PTerm)] -> IState -> PTerm -> [Name]
2288namesIn uvars ist tm = nub $ ni 0 [] tm
2290 ni 0 env (PRef _ _ n)
2291 | not (n `elem` env)
2292 = case lookupTy n (tt_ctxt ist) of
2294 _ -> if n `elem` (map fst uvars) then [n] else []
2295 ni 0 env (PApp _ f as) = ni 0 env f ++ concatMap (ni 0 env) (map getTm as)
2296 ni 0 env (PAppBind _ f as) = ni 0 env f ++ concatMap (ni 0 env) (map getTm as)
2297 ni 0 env (PCase _ c os) = ni 0 env c ++
2298 -- names in 'os', not counting the names bound in the cases
2299 (nub (concatMap (ni 0 env) (map snd os))
2300 \\ nub (concatMap (ni 0 env) (map fst os)))
2301 ni 0 env (PIfThenElse _ c t f) = concatMap (ni 0 env) [c, t, f]
2302 ni 0 env (PLam fc n nfc ty sc) = ni 0 env ty ++ ni 0 (n:env) sc
2303 ni 0 env (PPi p n _ ty sc) = niTacImp 0 env p ++ ni 0 env ty ++ ni 0 (n:env) sc
2304 ni 0 env (PRewrite _ l r _) = ni 0 env l ++ ni 0 env r
2305 ni 0 env (PTyped l r) = ni 0 env l ++ ni 0 env r
2306 ni 0 env (PPair _ _ _ l r) = ni 0 env l ++ ni 0 env r
2307 ni 0 env (PDPair _ _ _ (PRef _ _ n) t r) = ni 0 env t ++ ni 0 (n:env) r
2308 ni 0 env (PDPair _ _ _ l t r) = ni 0 env l ++ ni 0 env t ++ ni 0 env r
2309 ni 0 env (PAlternative ns a as) = concatMap (ni 0 env) as
2310 ni 0 env (PHidden tm) = ni 0 env tm
2311 ni 0 env (PUnifyLog tm) = ni 0 env tm
2312 ni 0 env (PDisamb _ tm) = ni 0 env tm
2313 ni 0 env (PNoImplicits tm) = ni 0 env tm
2315 ni i env (PQuasiquote tm ty) = ni (i + 1) env tm ++ maybe [] (ni i env) ty
2316 ni i env (PUnquote tm) = ni (i - 1) env tm
2318 ni i env tm = concatMap (ni i env) (children tm)
2320 niTacImp i env (TacImp _ _ scr) = ni i env scr
2323-- Return which of the given names are used in the given term.
2325usedNamesIn :: [Name] -> IState -> PTerm -> [Name]
2326usedNamesIn vars ist tm = nub $ ni 0 [] tm
2327 where -- TODO THINK added niTacImp, but is it right?
2328 ni 0 env (PRef _ _ n)
2329 | n `elem` vars && not (n `elem` env)
2330 = case lookupDefExact n (tt_ctxt ist) of
2333 ni 0 env (PApp _ f as) = ni 0 env f ++ concatMap (ni 0 env) (map getTm as)
2334 ni 0 env (PAppBind _ f as) = ni 0 env f ++ concatMap (ni 0 env) (map getTm as)
2335 ni 0 env (PCase _ c os) = ni 0 env c ++ concatMap (ni 0 env) (map snd os)
2336 ni 0 env (PIfThenElse _ c t f) = concatMap (ni 0 env) [c, t, f]
2337 ni 0 env (PLam fc n _ ty sc) = ni 0 env ty ++ ni 0 (n:env) sc
2338 ni 0 env (PPi p n _ ty sc) = niTacImp 0 env p ++ ni 0 env ty ++ ni 0 (n:env) sc
2339 ni 0 env (PRewrite _ l r _) = ni 0 env l ++ ni 0 env r
2340 ni 0 env (PTyped l r) = ni 0 env l ++ ni 0 env r
2341 ni 0 env (PPair _ _ _ l r) = ni 0 env l ++ ni 0 env r
2342 ni 0 env (PDPair _ _ _ (PRef _ _ n) t r) = ni 0 env t ++ ni 0 (n:env) r
2343 ni 0 env (PDPair _ _ _ l t r) = ni 0 env l ++ ni 0 env t ++ ni 0 env r
2344 ni 0 env (PAlternative ns a as) = concatMap (ni 0 env) as
2345 ni 0 env (PHidden tm) = ni 0 env tm
2346 ni 0 env (PUnifyLog tm) = ni 0 env tm
2347 ni 0 env (PDisamb _ tm) = ni 0 env tm
2348 ni 0 env (PNoImplicits tm) = ni 0 env tm
2350 ni i env (PQuasiquote tm ty) = ni (i + 1) env tm ++ maybe [] (ni i env) ty
2351 ni i env (PUnquote tm) = ni (i - 1) env tm
2353 ni i env tm = concatMap (ni i env) (children tm)
2355 niTacImp i env (TacImp _ _ scr) = ni i env scr
2358-- Return the list of inaccessible (= dotted) positions for a name.
2359getErasureInfo :: IState -> Name -> [Int]
2360getErasureInfo ist n =
2361 case lookupCtxtExact n (idris_optimisation ist) of
2362 Just (Optimise inacc detagg) -> map fst inacc
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