erik.pilkington added inline comments.
================
Comment at: clang/lib/Sema/SemaDecl.cpp:12886
if (!IsInstantiation && FD && FD->isConstexpr() && !FD->isInvalidDecl() &&
+ !isLambdaCallOperator(FD) &&
(!CheckConstexprFunctionDecl(FD) ||
----------------
faisalv wrote:
> Hmm - as opposed to further leaking our lambda's implementation-details into
> ActOnFinishFunctionBody - and duplicating these checks for a lambda marked
> constexpr, I think I would prefer teaching the expression-evaluator
> (ExprConstant.cpp) to know how to check a lambda's function call operator for
> constexprness (i.e. avoid creating the capture-to-field-map when
> 'checkingPotentialConstantExpression()' and ignore evaluating expressions
> that refer to enclosing variables since their evaluation should not affect
> inferring constexprness).
>
> Thoughts?
>
>
That's a really good point, makes this a lot simpler. Thanks!
https://reviews.llvm.org/D45194
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