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fix: do not cache if term contains Expr-metavariables

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Leonardo de Moura 2020-09-13 13:13:05 -07:00
parent 98a8867d90
commit fd7dca9bc1
1 changed files with 2 additions and 2 deletions
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4
src/Lean/Meta/WHNF.lean
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@ -399,8 +399,8 @@ else match e with
@[inline] private def useWHNFCache (e : Expr) : MetaM Bool := do
-- We cache only closed terms
if e.hasFVar then pure false
-- We cache only closed terms without expr metavars
if e.hasFVar || e.hasExprMVar then pure false
else do
ctx ← read;
pure $ ctx.config.transparency != TransparencyMode.reducible