41 lines
1.2 KiB
Plaintext
41 lines
1.2 KiB
Plaintext
import Lean
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open Lean
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namespace Pantograph
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-- Functions for creating contexts and states
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@[export pantograph_default_elab_context]
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def defaultElabContext: Elab.Term.Context := {
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errToSorry := false
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}
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/-- Read syntax object from string -/
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def parseTerm (env: Environment) (s: String): Except String Syntax :=
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Parser.runParserCategory
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(env := env)
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(catName := `term)
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(input := s)
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(fileName := "<stdin>")
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def parseTermM [Monad m] [MonadEnv m] (s: String): m (Except String Syntax) := do
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return Parser.runParserCategory
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(env := ← MonadEnv.getEnv)
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(catName := `term)
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(input := s)
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(fileName := "<stdin>")
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/-- Parse a syntax object. May generate additional metavariables! -/
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def elabType (syn: Syntax): Elab.TermElabM (Except String Expr) := do
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try
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let expr ← Elab.Term.elabType syn
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return .ok expr
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catch ex => return .error (← ex.toMessageData.toString)
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def elabTerm (syn: Syntax) (expectedType? : Option Expr := .none): Elab.TermElabM (Except String Expr) := do
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try
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let expr ← Elab.Term.elabTerm (stx := syn) expectedType?
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return .ok expr
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catch ex => return .error (← ex.toMessageData.toString)
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end Pantograph
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