28 lines
684 B
Text
28 lines
684 B
Text
import Lean
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open Lean
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open Lean.Elab
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open Lean.Elab.Term
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set_option trace.Elab.debug true
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def tst1 : TermElabM Unit := do
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opt ← getOptions;
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stx ← `(forall (a b : Nat), Nat);
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IO.println "message 1"; -- This message goes direct to stdio. It will be displayed before trace messages.
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e ← elabTermAndSynthesize stx none;
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logDbgTrace (">>> " ++ e); -- display message when `trace.Elab.debug` is true
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IO.println "message 2"
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#eval tst1
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def tst2 : TermElabM Unit := do
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opt ← getOptions;
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let a := mkIdent `a;
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let b := mkIdent `b;
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stx ← `((fun ($a : Type) (x : $a) => @id $a x) _ 1);
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e ← elabTermAndSynthesize stx none;
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logDbgTrace (">>> " ++ e);
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throwErrorIfErrors
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#eval tst2
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