[clang] [clang] Introduce [[clang::lifetime_capture_by(X)]] (PR #111499)
Haojian Wu via cfe-commits
cfe-commits at lists.llvm.org
Tue Oct 22 00:44:58 PDT 2024
================
@@ -269,6 +271,40 @@ void Sema::inferLifetimeBoundAttribute(FunctionDecl *FD) {
}
}
+static bool IsPointerLikeType(QualType QT) {
+ QT = QT.getNonReferenceType();
+ // if (QT->isPointerType())
+ // return true;
+ auto *RD = QT->getAsCXXRecordDecl();
+ if (!RD)
+ return false;
+ RD = RD->getCanonicalDecl();
+ if (auto *CTSD = dyn_cast<ClassTemplateSpecializationDecl>(RD))
+ RD = CTSD->getSpecializedTemplate()->getTemplatedDecl();
+ return RD->hasAttr<PointerAttr>();
+}
+
+void Sema::inferLifetimeCaptureByAttribute(FunctionDecl *FD) {
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hokein wrote:
Since we do the auto inference for some STL types, it would be better to have some lit-tests to verify the AST node, e.g. make sure the `lifetime_capture_by` is present.
https://github.com/llvm/llvm-project/pull/111499
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