partial def Lean.Elab.Term.Quotation.mkTuple : Array Syntax → TermElabM Syntax

def Lean.Elab.Term.Quotation.resolveSectionVariable (sectionVars : NameMap Name) (id : Name) : List (Name × List String)

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def Lean.Elab.Term.Quotation.ArrayStxBuilder : Type

Transform sequence of pushes and appends into acceptable code

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• Lean.Elab.Term.Quotation.ArrayStxBuilder = (Array Lean.Term ⊕ Lean.Term)

def Lean.Elab.Term.Quotation.ArrayStxBuilder.empty : ArrayStxBuilder

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• Lean.Elab.Term.Quotation.ArrayStxBuilder.empty = Sum.inl #[]

def Lean.Elab.Term.Quotation.ArrayStxBuilder.build : ArrayStxBuilder → Term

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• Lean.Elab.Term.Quotation.ArrayStxBuilder.build (Sum.inl elems) = Lean.quote `term elems
• Lean.Elab.Term.Quotation.ArrayStxBuilder.build (Sum.inr arr) = arr

def Lean.Elab.Term.Quotation.ArrayStxBuilder.push (b : ArrayStxBuilder) (elem : Syntax) : ArrayStxBuilder

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• Lean.Elab.Term.Quotation.ArrayStxBuilder.push (Sum.inl elems) elem = Sum.inl (elems.push { raw := elem })
• Lean.Elab.Term.Quotation.ArrayStxBuilder.push (Sum.inr arr) elem = Sum.inr (Lean.Syntax.mkCApp `Array.push #[arr, { raw := elem }])

def Lean.Elab.Term.Quotation.ArrayStxBuilder.append (b : ArrayStxBuilder) (arr : Syntax) (appendName : Name := `Array.append) : ArrayStxBuilder

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• b.append arr appendName = Sum.inr (Lean.Syntax.mkCApp appendName #[b.build, { raw := arr }])

def Lean.Elab.Term.Quotation.ArrayStxBuilder.mkNode (b : ArrayStxBuilder) (k : SyntaxNodeKind) : TermElabM Term

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def Lean.Elab.Term.Quotation.tryAddSyntaxNodeKindInfo (stx : Syntax) (k : SyntaxNodeKind) : TermElabM Unit

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instance Lean.Elab.Term.Quotation.instQuotePreresolvedMkStr1_lean : Quote Syntax.Preresolved

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def Lean.Elab.Term.Quotation.addNamedQuotInfo (stx : Syntax) (k : SyntaxNodeKind) : TermElabM SyntaxNodeKind

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def Lean.Elab.Term.Quotation.getQuotKind (stx : Syntax) : TermElabM SyntaxNodeKind

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def Lean.Elab.Term.Quotation.mkSyntaxQuotation (stx : Syntax) (kind : Name) : TermElabM Syntax

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def Lean.Elab.Term.Quotation.stxQuot.expand (stx : Syntax) : TermElabM Syntax

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def Lean.Elab.Term.Quotation.commandElab_stx_quot_ : ParserDescr

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match

@[reducible, inline]

abbrev Lean.Elab.Term.Quotation.Alt : Type

an "alternative" of patterns plus right-hand side

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• Lean.Elab.Term.Quotation.Alt = (List Lean.Term × Lean.Term)

inductive Lean.Elab.Term.Quotation.HeadCheck : Type

In a single match step, we match the first discriminant against the "head" of the first pattern of the first alternative. This datatype describes what kind of check this involves, which helps other patterns decide if they are covered by the same check and don't have to be checked again (see also MatchResult).

• unconditional : HeadCheck

  match step that always succeeds: _, x, `($x), ...

• shape (k : List SyntaxNodeKind) (arity : Option Nat) : HeadCheck

  match step based on kind and, optionally, arity of discriminant If arity is given, that number of new discriminants is introduced. covered patterns should then introduce the same number of new patterns. We actually check the arity at run time only in the case of null nodes since it should otherwise by implied by the node kind. without arity: `($x:k) with arity: any quotation without an antiquotation head pattern

• slice (numPrefix numSuffix : Nat) : HeadCheck

  Match step that succeeds on null nodes of arity at least numPrefix + numSuffix, introducing discriminants for the first numPrefix children, one null node for those in between, and for the numSuffix last children. example: ([$x, $xs,*, $y]) is slice 2 2`

• other (pat : Syntax) : HeadCheck

  other, complicated match step that will probably only cover identical patterns example: antiquotation splices `($[...]*)

inductive Lean.Elab.Term.Quotation.MatchResult : Type

Describe whether a pattern is covered by a head check (induced by the pattern itself or a different pattern).

• covered (f : Alt → TermElabM Alt) (exhaustive : Bool) : MatchResult

  Pattern agrees with head check, remove and transform remaining alternative. If exhaustive is false, also include unchanged alternative in the "no" branch.

• uncovered : MatchResult

  Pattern disagrees with head check, include in "no" branch only

• undecided : MatchResult

  Pattern is not quite sure yet; include unchanged in both branches

instance Lean.Elab.Term.Quotation.instReprMatchResult : Repr MatchResult

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structure Lean.Elab.Term.Quotation.HeadInfo : Type

All necessary information on a pattern head.

• check : HeadCheck

  check induced by the pattern

• onMatch (taken : HeadCheck) : MatchResult

  compute compatibility of pattern with given head check

• doMatch (yes : List Term → TermElabM Term) (no : TermElabM Term) : TermElabM Term

  actually run the specified head check, with the discriminant bound to __discr

@[reducible, inline]

abbrev Lean.Elab.Term.Quotation.IdxSet : Type

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• Lean.Elab.Term.Quotation.IdxSet = Std.HashSet Nat

def Lean.Elab.Term.Quotation.match_syntax.expand (stx : Syntax) : TermElabM Syntax

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def Lean.Elab.Term.Quotation.elabMatchSyntax : TermElab

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• Lean.Elab.Term.Quotation.elabMatchSyntax = Lean.Elab.Term.adaptExpander Lean.Elab.Term.Quotation.match_syntax.expand

def Lean.Elab.Term.Quotation.elabNoErrorIfUnused : TermElab

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