================
@@ -3867,6 +3869,117 @@ static void handleCallbackAttr(Sema &S, Decl *D, const
ParsedAttr &AL) {
S.Context, AL, EncodingIndices.data(), EncodingIndices.size()));
}
+LifetimeCaptureByAttr *Sema::ParseLifetimeCaptureByAttr(const ParsedAttr &AL,
+ StringRef ParamName) {
+ // Atleast one capture by is required.
+ if (AL.getNumArgs() == 0) {
+ Diag(AL.getLoc(), diag::err_capture_by_attribute_no_entity)
+ << AL.getRange();
+ return nullptr;
+ }
+ unsigned N = AL.getNumArgs();
+ IdentifierInfo **ParamIdents = new (Context) IdentifierInfo *[N];
+ SourceLocation *ParamLocs = new (Context) SourceLocation[N];
+ bool IsValid = true;
+ for (unsigned I = 0; I < N; ++I) {
+ if (AL.isArgExpr(I)) {
+ Expr *E = AL.getArgAsExpr(I);
+ Diag(E->getExprLoc(), diag::err_capture_by_attribute_argument_unknown)
+ << E << E->getExprLoc();
+ IsValid = false;
+ continue;
+ }
+ assert(AL.isArgIdent(I));
+ IdentifierLoc *IdLoc = AL.getArgAsIdent(I);
+ if (IdLoc->Ident->getName() == ParamName) {
+ Diag(IdLoc->Loc, diag::err_capture_by_references_itself) << IdLoc->Loc;
+ IsValid = false;
+ continue;
+ }
+ ParamIdents[I] = IdLoc->Ident;
+ ParamLocs[I] = IdLoc->Loc;
+ }
+ if (!IsValid)
+ return nullptr;
+ SmallVector<int> FakeParamIndices(N, LifetimeCaptureByAttr::INVALID);
+ LifetimeCaptureByAttr *CapturedBy = ::new (Context) LifetimeCaptureByAttr(
----------------
hokein wrote:
I haven't seen the change in the latest version.
> Added this as a function to the Attribute API.
Do we need to do this? I thought this `create` is automatically generated.
https://github.com/llvm/llvm-project/pull/115823
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