def Lean.Elab.Term.expandOptPrecedence (stx : Syntax) : MacroM (Option Nat)

Expand optional «precedence» where «precedence» := leading_parser " : " >> precedenceParser

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• Lean.Elab.Term.expandOptPrecedence stx = if stx.isNone = true then pure none else do let __do_lift ← Lean.evalPrec stx[0][1] pure (some __do_lift)

structure Lean.Elab.Term.ToParserDescrContext : Type

• catName : Name
• first : Bool
• leftRec : Bool
• behavior : Parser.LeadingIdentBehavior

  See comment at Parser.ParserCategory.

@[reducible, inline]

abbrev Lean.Elab.Term.ToParserDescrM (α : Type) : Type

Equations

• Lean.Elab.Term.ToParserDescrM = ReaderT Lean.Elab.Term.ToParserDescrContext (StateRefT' IO.RealWorld (Option Nat) Lean.Elab.TermElabM)

@[reducible, inline]

abbrev Lean.Elab.Term.ToParserDescr : Type

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• Lean.Elab.Term.ToParserDescr = Lean.Elab.Term.ToParserDescrM (Lean.Term × Nat)

def Lean.Elab.Term.ensureUnaryOutput (x : Term × Nat) : Term

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def Lean.Elab.Term.addCategoryInfo (ref : Syntax) (catName : Name) : TermElabM Unit

(Try to) add a term info for the category catName at ref.

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def Lean.Elab.Term.addAliasInfo (ref : Syntax) (info : Parser.ParserAliasInfo) : TermElabM Unit

(Try to) add a term info for the alias with info info at ref.

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def Lean.Elab.Term.checkLeftRec (stx : Syntax) : ToParserDescrM Bool

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def Lean.Elab.Term.elabParserName? (stx : Ident) : TermElabM (Option Parser.ParserResolution)

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def Lean.Elab.Term.elabParserName (stx : Ident) : TermElabM Parser.ParserResolution

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def Lean.Elab.Term.toParserDescr (stx : Syntax) (catName : Name) : TermElabM (Term × Option Nat)

Given a stx of category syntax, return a (newStx, lhsPrec?), where newStx is of category term. After elaboration, newStx should have type TrailingParserDescr if lhsPrec?.isSome, and ParserDescr otherwise.

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def Lean.Elab.Command.elabDeclareSyntaxCat : CommandElab

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def Lean.Elab.Command.resolveSyntaxKind (k : Name) : CommandElabM Name

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def Lean.Elab.Command.isLocalAttrKind (attrKind : Syntax) : Bool

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def Lean.Elab.Command.elabSyntax (stx : Syntax) : CommandElabM Name

Elaborates the given syntax command and returns the new node kind.

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def Lean.Elab.Command.elabSyntaxAbbrev : CommandElab

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def Lean.Elab.Command.checkRuleKind (given expected : SyntaxNodeKind) : Bool

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• Lean.Elab.Command.checkRuleKind given expected = (given == expected || given == expected ++ `antiquot)

def Lean.Elab.Command.inferMacroRulesAltKind : TSyntax `Lean.Parser.Term.matchAlt → CommandElabM SyntaxNodeKind

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def Lean.Elab.Command.expandNoKindMacroRulesAux (alts : Array (TSyntax `Lean.Parser.Term.matchAlt)) (cmdName : String) (mkCmd : Option Name → Array (TSyntax `Lean.Parser.Term.matchAlt) → CommandElabM Command) : CommandElabM Command

Infer syntax kind k from first pattern, put alternatives of same kind into new macro/elab_rules (kind := k) via mkCmd (some k), leave remaining alternatives (via mkCmd none) to be recursively expanded.

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def Lean.Elab.Command.strLitToPattern (stx : Syntax) : MacroM Syntax

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• Lean.Elab.Command.strLitToPattern stx = match stx.isStrLit? with | some str => pure (Lean.mkAtomFrom stx str) | none => Lean.Macro.throwUnsupported