================
@@ -418,39 +448,60 @@ static ReadySuspendResumeResult buildCoawaitCalls(Sema
&S, VarDecl *CoroPromise,
return Calls;
}
Expr *CoroHandle = CoroHandleRes.get();
- CallExpr *AwaitSuspend = cast_or_null<CallExpr>(
- BuildSubExpr(ACT::ACT_Suspend, "await_suspend", CoroHandle));
+ auto *AwaitSuspend = [&]() -> CallExpr * {
+ auto *SubExpr = BuildSubExpr(ACT::ACT_Suspend, "await_suspend",
CoroHandle);
+ if (!SubExpr)
+ return nullptr;
+ if (auto *E = dyn_cast<CXXBindTemporaryExpr>(SubExpr)) {
+ // This happens when await_suspend return type is not trivially
+ // destructible. This doesn't happen for the permitted return types of
+ // such function. Diagnose it later.
+ return cast_or_null<CallExpr>(E->getSubExpr());
+ } else {
+ return cast_or_null<CallExpr>(SubExpr);
+ }
----------------
ChuanqiXu9 wrote:
Thanks. My motivation is that the small pattern match style looks really not
good. And if it is possible to get the RecordDecl by the type of `Operand` and
find the `await_suspend` member function? If yes, we can still get the location
of `await_suspend`.
And if we have problems printing `(have 'Status')` part, I feel it may not be a
big problem since the underlying issue is clear.
https://github.com/llvm/llvm-project/pull/85684
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