104 lines
7.8 KiB
Text
104 lines
7.8 KiB
Text
/-
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Copyright (c) 2019 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Authors: Leonardo de Moura, Sebastian Ullrich
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-/
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import Lean.Parser.Term
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import Lean.Parser.Do
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namespace Lean
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namespace Parser
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/--
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Syntax quotation for terms and (lists of) commands. We prefer terms, so ambiguous quotations like
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`($x $y) will be parsed as an application, not two commands. Use `($x:command $y:command) instead.
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Multiple command will be put in a `null node, but a single command will not (so that you can directly
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match against a quotation in a command kind's elaborator). -/
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-- TODO: use two separate quotation parsers with parser priorities instead
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@[builtinTermParser] def Term.quot := parser! "`(" >> toggleInsideQuot (termParser <|> many1Unbox commandParser) >> ")"
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namespace Command
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def commentBody : Parser :=
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{ fn := rawFn (finishCommentBlock 1) true }
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@[combinatorParenthesizer Lean.Parser.Command.commentBody] def commentBody.parenthesizer := PrettyPrinter.Parenthesizer.visitToken
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@[combinatorFormatter Lean.Parser.Command.commentBody] def commentBody.formatter := PrettyPrinter.Formatter.visitAtom Name.anonymous
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def docComment := parser! ppDedent $ "/--" >> commentBody >> ppLine
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def «private» := parser! "private "
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def «protected» := parser! "protected "
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def visibility := «private» <|> «protected»
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def «noncomputable» := parser! "noncomputable "
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def «unsafe» := parser! "unsafe "
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def «partial» := parser! "partial "
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def declModifiers (inline : Bool) := parser! optional docComment >> optional (Term.«attributes» >> if inline then skip else ppDedent ppLine) >> optional visibility >> optional «noncomputable» >> optional «unsafe» >> optional «partial»
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def declId := parser! ident >> optional (".{" >> sepBy1 ident ", " >> "}")
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def declSig := parser! many (ppSpace >> (Term.simpleBinderWithoutType <|> Term.bracketedBinder)) >> Term.typeSpec
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def optDeclSig := parser! many (ppSpace >> (Term.simpleBinderWithoutType <|> Term.bracketedBinder)) >> Term.optType
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def declValSimple := parser! " :=\n" >> termParser >> optional Term.whereDecls
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def declValEqns := parser! Term.matchAltsWhereDecls
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def declVal := declValSimple <|> declValEqns <|> Term.whereDecls
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def «abbrev» := parser! "abbrev " >> declId >> optDeclSig >> declVal
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def «def» := parser! "def " >> declId >> optDeclSig >> declVal
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def «theorem» := parser! "theorem " >> declId >> declSig >> declVal
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def «constant» := parser! "constant " >> declId >> declSig >> optional declValSimple
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def «instance» := parser! Term.attrKind >> "instance " >> optional declId >> declSig >> declVal
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def «axiom» := parser! "axiom " >> declId >> declSig
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def «example» := parser! "example " >> declSig >> declVal
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def inferMod := parser! atomic (symbol "{" >> "}")
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def ctor := parser! "\n| " >> declModifiers true >> ident >> optional inferMod >> optDeclSig
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def optDeriving := parser! optional ("deriving " >> sepBy1 ident ", ")
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def «inductive» := parser! "inductive " >> declId >> optDeclSig >> optional (symbol ":=" <|> "where") >> many ctor >> optDeriving
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def classInductive := parser! atomic (group (symbol "class " >> "inductive ")) >> declId >> optDeclSig >> optional (symbol ":=" <|> "where") >> many ctor >> optDeriving
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def structExplicitBinder := parser! atomic (declModifiers true >> "(") >> many1 ident >> optional inferMod >> optDeclSig >> optional Term.binderDefault >> ")"
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def structImplicitBinder := parser! atomic (declModifiers true >> "{") >> many1 ident >> optional inferMod >> declSig >> "}"
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def structInstBinder := parser! atomic (declModifiers true >> "[") >> many1 ident >> optional inferMod >> declSig >> "]"
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def structSimpleBinder := parser! atomic (declModifiers true >> many1 ident) >> optional inferMod >> optDeclSig >> optional Term.binderDefault
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def structFields := parser! manyIndent (ppLine >> checkColGe >>(structExplicitBinder <|> structImplicitBinder <|> structInstBinder <|> structSimpleBinder))
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def structCtor := parser! atomic (declModifiers true >> ident >> optional inferMod >> " :: ")
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def structureTk := parser! "structure "
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def classTk := parser! "class "
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def «extends» := parser! " extends " >> sepBy1 termParser ", "
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def «structure» := parser!
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(structureTk <|> classTk) >> declId >> many Term.bracketedBinder >> optional «extends» >> Term.optType
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>> optional ((symbol " := " <|> " where ") >> optional structCtor >> structFields)
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>> optDeriving
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@[builtinCommandParser] def declaration := parser!
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declModifiers false >> («abbrev» <|> «def» <|> «theorem» <|> «constant» <|> «instance» <|> «axiom» <|> «example» <|> «inductive» <|> classInductive <|> «structure»)
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@[builtinCommandParser] def «deriving» := parser! "deriving " >> "instance " >> sepBy1 ident ", " >> " for " >> ident
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@[builtinCommandParser] def «section» := parser! "section " >> optional ident
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@[builtinCommandParser] def «namespace» := parser! "namespace " >> ident
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@[builtinCommandParser] def «end» := parser! "end " >> optional ident
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@[builtinCommandParser] def «variable» := parser! "variable" >> Term.bracketedBinder
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@[builtinCommandParser] def «variables» := parser! "variables" >> many1 Term.bracketedBinder
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@[builtinCommandParser] def «universe» := parser! "universe " >> ident
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@[builtinCommandParser] def «universes» := parser! "universes " >> many1 ident
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@[builtinCommandParser] def check := parser! "#check " >> termParser
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@[builtinCommandParser] def check_failure := parser! "#check_failure " >> termParser -- Like `#check`, but succeeds only if term does not type check
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@[builtinCommandParser] def reduce := parser! "#reduce " >> termParser
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@[builtinCommandParser] def eval := parser! "#eval " >> termParser
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@[builtinCommandParser] def synth := parser! "#synth " >> termParser
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@[builtinCommandParser] def exit := parser! "#exit"
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@[builtinCommandParser] def print := parser! "#print " >> (ident <|> strLit)
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@[builtinCommandParser] def printAxioms := parser! "#print " >> nonReservedSymbol "axioms " >> ident
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@[builtinCommandParser] def «resolve_name» := parser! "#resolve_name " >> ident
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@[builtinCommandParser] def «init_quot» := parser! "init_quot"
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@[builtinCommandParser] def «set_option» := parser! "set_option " >> ident >> (nonReservedSymbol "true" <|> nonReservedSymbol "false" <|> strLit <|> numLit)
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@[builtinCommandParser] def «attribute» := parser! "attribute " >> "[" >> sepBy1 Term.attrInstance ", " >> "] " >> many1 ident
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@[builtinCommandParser] def «export» := parser! "export " >> ident >> "(" >> many1 ident >> ")"
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def openHiding := parser! atomic (ident >> "hiding") >> many1 ident
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def openRenamingItem := parser! ident >> unicodeSymbol "→" "->" >> ident
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def openRenaming := parser! atomic (ident >> "renaming") >> sepBy1 openRenamingItem ", "
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def openOnly := parser! atomic (ident >> "(") >> many1 ident >> ")"
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def openSimple := parser! many1 ident
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@[builtinCommandParser] def «open» := parser! "open " >> (openHiding <|> openRenaming <|> openOnly <|> openSimple)
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@[builtinCommandParser] def «mutual» := parser! "mutual " >> many1 (ppLine >> notSymbol "end" >> commandParser) >> ppDedent (ppLine >> "end")
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@[builtinCommandParser] def «initialize» := parser! "initialize " >> optional (atomic (ident >> Term.typeSpec >> Term.leftArrow)) >> Term.doSeq
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@[builtinCommandParser] def «builtin_initialize» := parser! "builtin_initialize " >> optional (atomic (ident >> Term.typeSpec >> Term.leftArrow)) >> Term.doSeq
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@[builtinCommandParser] def «in» := tparser! " in " >> commandParser
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end Command
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end Parser
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end Lean
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