26 lines
664 B
Text
26 lines
664 B
Text
import Init.Lean.Meta
|
|
open Lean
|
|
open Lean.Meta
|
|
|
|
def tst1 : MetaM Unit :=
|
|
withLocalDecl `y (mkConst `Nat) BinderInfo.default $ fun y => do
|
|
withLetDecl `x (mkConst `Nat) (mkNatLit 0) $ fun x => do {
|
|
mvar ← mkFreshExprMVar (mkConst `Nat) Name.anonymous MetavarKind.syntheticOpaque;
|
|
trace! `Meta mvar;
|
|
r ← mkLambda #[y, x] mvar;
|
|
trace! `Meta r;
|
|
let v := mkApp2 (mkConst `Nat.add) x y;
|
|
assignExprMVar mvar.mvarId! v;
|
|
trace! `Meta mvar;
|
|
trace! `Meta r;
|
|
mctx ← getMCtx;
|
|
mctx.decls.forM $ fun mvarId mvarDecl => do {
|
|
trace! `Meta ("?" ++ mvarId ++ " : " ++ mvarDecl.type);
|
|
pure ()
|
|
};
|
|
pure ()
|
|
}
|
|
|
|
set_option trace.Meta true
|
|
|
|
#eval tst1
|