[clang] [webkit.UncountedLambdaCapturesChecker] Detect protectedThis pattern. (PR #120528)
Rashmi Mudduluru via cfe-commits
cfe-commits at lists.llvm.org
Thu Dec 19 00:42:07 PST 2024
================
@@ -207,6 +207,58 @@ struct RefCountableWithLambdaCapturingThis {
};
call(lambda);
}
+
+ void method_captures_this_unsafe_capture_local_var_explicitly() {
+ RefCountable* x = make_obj();
+ call([this, protectedThis = RefPtr { this }, x]() {
+ // expected-warning at -1{{Captured raw-pointer 'x' to ref-counted type or CheckedPtr-capable type is unsafe [webkit.UncountedLambdaCapturesChecker]}}
+ nonTrivial();
+ x->method();
+ });
+ }
+
+ void method_captures_this_with_other_protected_var() {
+ RefCountable* x = make_obj();
+ call([this, protectedX = RefPtr { x }]() {
+ // expected-warning at -1{{Captured raw-pointer 'this' to ref-counted type or CheckedPtr-capable type is unsafe [webkit.UncountedLambdaCapturesChecker]}}
+ nonTrivial();
+ protectedX->method();
+ });
+ }
+
+ void method_captures_this_unsafe_capture_local_var_explicitly_with_deref() {
+ RefCountable* x = make_obj();
+ call([this, protectedThis = Ref { *this }, x]() {
+ // expected-warning at -1{{Captured raw-pointer 'x' to ref-counted type or CheckedPtr-capable type is unsafe [webkit.UncountedLambdaCapturesChecker]}}
+ nonTrivial();
+ x->method();
+ });
+ }
+
+ void method_captures_this_unsafe_local_var_via_vardecl() {
+ RefCountable* x = make_obj();
+ auto lambda = [this, protectedThis = Ref { *this }, x]() {
+ // expected-warning at -1{{Captured raw-pointer 'x' to ref-counted type or CheckedPtr-capable type is unsafe [webkit.UncountedLambdaCapturesChecker]}}
+ nonTrivial();
+ x->method();
+ };
+ call(lambda);
+ }
+
+ void method_captures_this_with_guardian() {
+ auto lambda = [this, protectedThis = Ref { *this }]() {
+ nonTrivial();
+ };
+ call(lambda);
+ }
+
+ void method_captures_this_with_guardian_refPtr() {
+ auto lambda = [this, protectedThis = RefPtr { &*this }]() {
+ nonTrivial();
+ };
+ call(lambda);
+ }
+
};
----------------
t-rasmud wrote:
@rniwa I'm running into the following crash when I run this test locally:
```
RUN: at line 1: /Users/admin/webkit-pr/build-xcode/bin/clang -cc1 -internal-isystem /Users/admin/webkit-pr/build-xcode/lib/clang/20/include -nostdsysteminc -analyze -analyzer-constraints=range -setup-static-analyzer -analyzer-checker=webkit.UncountedLambdaCapturesChecker -verify /Users/admin/webkit-pr/llvm-project/clang/test/Analysis/Checkers/WebKit/uncounted-lambda-captures.cpp
+ /Users/admin/webkit-pr/build-xcode/bin/clang -cc1 -internal-isystem /Users/admin/webkit-pr/build-xcode/lib/clang/20/include -nostdsysteminc -analyze -analyzer-constraints=range -setup-static-analyzer -analyzer-checker=webkit.UncountedLambdaCapturesChecker -verify /Users/admin/webkit-pr/llvm-project/clang/test/Analysis/Checkers/WebKit/uncounted-lambda-captures.cpp
Assertion failed: (capturesVariable() && "No variable available for capture"), function getCapturedVar, file LambdaCapture.h, line 105.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments: /Users/admin/webkit-pr/build-xcode/bin/clang -cc1 -internal-isystem /Users/admin/webkit-pr/build-xcode/lib/clang/20/include -nostdsysteminc -analyze -analyzer-constraints=range -setup-static-analyzer -analyzer-checker=webkit.UncountedLambdaCapturesChecker -verify /Users/admin/webkit-pr/llvm-project/clang/test/Analysis/Checkers/WebKit/uncounted-lambda-captures.cpp
1. <eof> parser at end of file
#0 0x000000010a558d5c llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10a048d5c)
#1 0x000000010a559258 PrintStackTraceSignalHandler(void*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10a049258)
#2 0x000000010a5572b0 llvm::sys::RunSignalHandlers() (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10a0472b0)
#3 0x000000010a559fbc SignalHandler(int) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10a049fbc)
#4 0x00000001991dc184 (/usr/lib/system/libsystem_platform.dylib+0x180484184)
#5 0x00000001991a6f70 (/usr/lib/system/libsystem_pthread.dylib+0x18044ef70)
#6 0x00000001990b3908 (/usr/lib/system/libsystem_c.dylib+0x18035b908)
#7 0x00000001990b2c1c (/usr/lib/system/libsystem_c.dylib+0x18035ac1c)
#8 0x000000010217f778 clang::LambdaCapture::getCapturedVar() const (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x101c6f778)
#9 0x0000000105979588 (anonymous namespace)::UncountedLambdaCapturesChecker::visitLambdaExpr(clang::LambdaExpr*, bool, bool) const (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x105469588)
#10 0x00000001059775b8 (anonymous namespace)::UncountedLambdaCapturesChecker::checkASTDecl(clang::TranslationUnitDecl const*, clang::ento::AnalysisManager&, clang::ento::BugReporter&) const::LocalVisitor::VisitDeclRefExpr(clang::DeclRefExpr*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x1054675b8)
#11 0x0000000107eb5ec8 (anonymous namespace)::Impl::VisitDeclRefExpr(clang::DeclRefExpr*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x1079a5ec8)
#12 0x0000000107e62148 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::WalkUpFromDeclRefExpr(clang::DeclRefExpr*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107952148)
#13 0x0000000107e446c4 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::TraverseDeclRefExpr(clang::DeclRefExpr*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x1079346c4)
#14 0x0000000107e44664 clang::DynamicRecursiveASTVisitor::TraverseDeclRefExpr(clang::DeclRefExpr*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107934664)
#15 0x0000000107ea5b78 (anonymous namespace)::Impl::TraverseDeclRefExpr(clang::DeclRefExpr*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107995b78)
#16 0x0000000107e24b68 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::dataTraverseNode(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107914b68)
#17 0x0000000107e2432c clang::DynamicRecursiveASTVisitor::dataTraverseNode(clang::Stmt*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10791432c)
#18 0x0000000107ea4bb8 (anonymous namespace)::Impl::dataTraverseNode(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107994bb8)
#19 0x0000000107e20f04 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::TraverseStmt(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107910f04)
#20 0x0000000107e20cf8 clang::DynamicRecursiveASTVisitor::TraverseStmt(clang::Stmt*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107910cf8)
#21 0x0000000107e94d10 (anonymous namespace)::Impl::TraverseStmt(clang::Stmt*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107984d10)
#22 0x0000000107e45af8 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::TraverseImplicitCastExpr(clang::ImplicitCastExpr*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107935af8)
#23 0x0000000107e459d4 clang::DynamicRecursiveASTVisitor::TraverseImplicitCastExpr(clang::ImplicitCastExpr*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x1079359d4)
#24 0x0000000107ea5d38 (anonymous namespace)::Impl::TraverseImplicitCastExpr(clang::ImplicitCastExpr*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107995d38)
#25 0x0000000107e24c48 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::dataTraverseNode(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107914c48)
#26 0x0000000107e2432c clang::DynamicRecursiveASTVisitor::dataTraverseNode(clang::Stmt*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10791432c)
#27 0x0000000107ea4bb8 (anonymous namespace)::Impl::dataTraverseNode(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107994bb8)
#28 0x0000000107e20f04 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::TraverseStmt(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107910f04)
#29 0x0000000107e20cf8 clang::DynamicRecursiveASTVisitor::TraverseStmt(clang::Stmt*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107910cf8)
#30 0x0000000107e94d10 (anonymous namespace)::Impl::TraverseStmt(clang::Stmt*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107984d10)
#31 0x0000000107e4aacc clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::TraverseCXXConstructExpr(clang::CXXConstructExpr*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10793aacc)
#32 0x0000000107e4a9a8 clang::DynamicRecursiveASTVisitor::TraverseCXXConstructExpr(clang::CXXConstructExpr*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10793a9a8)
#33 0x0000000107ea64a8 (anonymous namespace)::Impl::TraverseCXXConstructExpr(clang::CXXConstructExpr*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x1079964a8)
#34 0x0000000107e25000 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::dataTraverseNode(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107915000)
#35 0x0000000107e2432c clang::DynamicRecursiveASTVisitor::dataTraverseNode(clang::Stmt*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10791432c)
#36 0x0000000107ea4bb8 (anonymous namespace)::Impl::dataTraverseNode(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107994bb8)
#37 0x0000000107e20f04 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::TraverseStmt(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107910f04)
#38 0x0000000107e20cf8 clang::DynamicRecursiveASTVisitor::TraverseStmt(clang::Stmt*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107910cf8)
#39 0x0000000107e94d10 (anonymous namespace)::Impl::TraverseStmt(clang::Stmt*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107984d10)
#40 0x0000000107e47300 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::TraverseCallExpr(clang::CallExpr*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107937300)
#41 0x0000000107e471dc clang::DynamicRecursiveASTVisitor::TraverseCallExpr(clang::CallExpr*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x1079371dc)
#42 0x0000000107ea5f68 (anonymous namespace)::Impl::TraverseCallExpr(clang::CallExpr*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107995f68)
#43 0x0000000107e24d60 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::dataTraverseNode(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107914d60)
#44 0x0000000107e2432c clang::DynamicRecursiveASTVisitor::dataTraverseNode(clang::Stmt*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10791432c)
#45 0x0000000107ea4bb8 (anonymous namespace)::Impl::dataTraverseNode(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107994bb8)
#46 0x0000000107e20f04 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::TraverseStmt(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107910f04)
#47 0x0000000107e20cf8 clang::DynamicRecursiveASTVisitor::TraverseStmt(clang::Stmt*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107910cf8)
#48 0x0000000107e94d10 (anonymous namespace)::Impl::TraverseStmt(clang::Stmt*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107984d10)
#49 0x0000000107e5c844 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::TraverseCompoundStmt(clang::CompoundStmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10794c844)
#50 0x0000000107e5c720 clang::DynamicRecursiveASTVisitor::TraverseCompoundStmt(clang::CompoundStmt*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10794c720)
#51 0x0000000107ea8070 (anonymous namespace)::Impl::TraverseCompoundStmt(clang::CompoundStmt*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107998070)
#52 0x0000000107e25de4 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::dataTraverseNode(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107915de4)
#53 0x0000000107e2432c clang::DynamicRecursiveASTVisitor::dataTraverseNode(clang::Stmt*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10791432c)
#54 0x0000000107ea4bb8 (anonymous namespace)::Impl::dataTraverseNode(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107994bb8)
#55 0x0000000107e20f04 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::TraverseStmt(clang::Stmt*, llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, llvm::PointerLikeTypeTraits<clang::Stmt*>, llvm::PointerIntPairInfo<clang::Stmt*, 1u, llvm::PointerLikeTypeTraits<clang::Stmt*>>>>*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107910f04)
#56 0x0000000107e20cf8 clang::DynamicRecursiveASTVisitor::TraverseStmt(clang::Stmt*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107910cf8)
#57 0x0000000107e94d10 (anonymous namespace)::Impl::TraverseStmt(clang::Stmt*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107984d10)
#58 0x0000000107eb2c10 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::TraverseFunctionHelper(clang::FunctionDecl*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x1079a2c10)
#59 0x0000000107e2db24 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::TraverseCXXMethodDecl(clang::CXXMethodDecl*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10791db24)
#60 0x0000000107e2da98 clang::DynamicRecursiveASTVisitor::TraverseCXXMethodDecl(clang::CXXMethodDecl*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10791da98)
#61 0x0000000105977308 (anonymous namespace)::UncountedLambdaCapturesChecker::checkASTDecl(clang::TranslationUnitDecl const*, clang::ento::AnalysisManager&, clang::ento::BugReporter&) const::LocalVisitor::TraverseCXXMethodDecl(clang::CXXMethodDecl*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x105467308)
#62 0x0000000107e983a4 (anonymous namespace)::Impl::TraverseCXXMethodDecl(clang::CXXMethodDecl*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x1079883a4)
#63 0x0000000107e20008 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::TraverseDecl(clang::Decl*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107910008)
#64 0x0000000107e1f8ac clang::DynamicRecursiveASTVisitor::TraverseDecl(clang::Decl*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10790f8ac)
#65 0x0000000107e83784 (anonymous namespace)::Impl::TraverseDecl(clang::Decl*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107973784)
#66 0x0000000107eaa5e4 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::TraverseDeclContextHelper(clang::DeclContext*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10799a5e4)
#67 0x0000000107e32fdc clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::TraverseCXXRecordDecl(clang::CXXRecordDecl*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107922fdc)
#68 0x0000000107e32ef0 clang::DynamicRecursiveASTVisitor::TraverseCXXRecordDecl(clang::CXXRecordDecl*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107922ef0)
#69 0x0000000107e988e4 (anonymous namespace)::Impl::TraverseCXXRecordDecl(clang::CXXRecordDecl*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x1079888e4)
#70 0x0000000107e20488 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::TraverseDecl(clang::Decl*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107910488)
#71 0x0000000107e1f8ac clang::DynamicRecursiveASTVisitor::TraverseDecl(clang::Decl*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10790f8ac)
#72 0x0000000107e83784 (anonymous namespace)::Impl::TraverseDecl(clang::Decl*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107973784)
#73 0x0000000107eaa5e4 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::TraverseDeclContextHelper(clang::DeclContext*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10799a5e4)
#74 0x0000000107e26a98 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::TraverseTranslationUnitDecl(clang::TranslationUnitDecl*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107916a98)
#75 0x0000000107e268a0 clang::DynamicRecursiveASTVisitor::TraverseTranslationUnitDecl(clang::TranslationUnitDecl*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x1079168a0)
#76 0x0000000107e97ca4 (anonymous namespace)::Impl::TraverseTranslationUnitDecl(clang::TranslationUnitDecl*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x107987ca4)
#77 0x0000000107e1fa08 clang::RecursiveASTVisitor<(anonymous namespace)::Impl>::TraverseDecl(clang::Decl*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10790fa08)
#78 0x0000000107e1f8ac clang::DynamicRecursiveASTVisitor::TraverseDecl(clang::Decl*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10790f8ac)
#79 0x00000001059770b8 (anonymous namespace)::UncountedLambdaCapturesChecker::checkASTDecl(clang::TranslationUnitDecl const*, clang::ento::AnalysisManager&, clang::ento::BugReporter&) const (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x1054670b8)
#80 0x000000010597705c void clang::ento::check::ASTDecl<clang::TranslationUnitDecl>::_checkDecl<(anonymous namespace)::UncountedLambdaCapturesChecker>(void*, clang::Decl const*, clang::ento::AnalysisManager&, clang::ento::BugReporter&) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10546705c)
#81 0x0000000105a18994 clang::ento::CheckerFn<void (clang::Decl const*, clang::ento::AnalysisManager&, clang::ento::BugReporter&)>::operator()(clang::Decl const*, clang::ento::AnalysisManager&, clang::ento::BugReporter&) const (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x105508994)
#82 0x0000000105a18578 clang::ento::CheckerManager::runCheckersOnASTDecl(clang::Decl const*, clang::ento::AnalysisManager&, clang::ento::BugReporter&) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x105508578)
#83 0x00000001054dd068 (anonymous namespace)::AnalysisConsumer::runAnalysisOnTranslationUnit(clang::ASTContext&) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x104fcd068)
#84 0x00000001054d3138 (anonymous namespace)::AnalysisConsumer::HandleTranslationUnit(clang::ASTContext&) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x104fc3138)
#85 0x0000000106169664 clang::ParseAST(clang::Sema&, bool, bool) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x105c59664)
#86 0x0000000105e5689c clang::ASTFrontendAction::ExecuteAction() (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10594689c)
#87 0x0000000105e56138 clang::FrontendAction::Execute() (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x105946138)
#88 0x0000000105d6cbdc clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10585cbdc)
#89 0x000000010125381c clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x100d4381c)
#90 0x0000000100521398 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x100011398)
#91 0x0000000100513154 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x100003154)
#92 0x0000000100511e80 clang_main(int, char**, llvm::ToolContext const&) (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x100001e80)
#93 0x000000010054ab94 main (/Users/admin/webkit-pr/build-xcode/bin/clang-20+0x10003ab94)
#94 0x0000000198e24274
/Users/admin/webkit-pr/build-xcode/tools/clang/test/Analysis/Checkers/WebKit/Output/uncounted-lambda-captures.cpp.script: line 1: 33767 Abort trap: 6 /Users/admin/webkit-pr/build-xcode/bin/clang -cc1 -internal-isystem /Users/admin/webkit-pr/build-xcode/lib/clang/20/include -nostdsysteminc -analyze -analyzer-constraints=range -setup-static-analyzer -analyzer-checker=webkit.UncountedLambdaCapturesChecker -verify /Users/admin/webkit-pr/llvm-project/clang/test/Analysis/Checkers/WebKit/uncounted-lambda-captures.cpp
```
https://github.com/llvm/llvm-project/pull/120528
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