24 lines
636 B
Text
24 lines
636 B
Text
import Lean.Meta
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open Lean
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open Lean.Meta
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def tst1 : MetaM Unit :=
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withLocalDeclD `y (mkConst `Nat) $ fun y => do
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withLetDecl `x (mkConst `Nat) (mkNatLit 0) $ fun x => do {
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let mvar ← mkFreshExprMVar (mkConst `Nat) MetavarKind.syntheticOpaque;
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trace[Meta.debug] mvar;
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let r ← mkLambdaFVars #[y, x] mvar;
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trace[Message.debug] r;
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let v := mkApp2 (mkConst `Nat.add) x y;
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assignExprMVar mvar.mvarId! v;
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trace[Meta.debug] mvar;
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trace[Meta.debug] r;
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let mctx ← getMCtx;
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mctx.decls.forM fun mvarId mvarDecl => do
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trace[Meta.debug] m!"?{mvarId} : {mvarDecl.type}"
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}
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set_option trace.Meta.debug true
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#eval tst1
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