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[webkit.UncountedLambdaCapturesChecker] Treat a call to lambda function via a variable as safe. #135688

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Merged
merged 2 commits into from
Apr 25, 2025
Merged

[webkit.UncountedLambdaCapturesChecker] Treat a call to lambda function via a variable as safe. #135688

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41992e5
[webkit.UncountedLambdaCapturesChecker] Treat a call to lambda functi…
rniwa Apr 14, 2025
fb8444e
Add a test case for capture by value
rniwa Apr 24, 2025
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2 changes: 0 additions & 2 deletions clang/lib/StaticAnalyzer/Checkers/WebKit/RawPtrRefLambdaCapturesChecker.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -263,8 +263,6 @@ class RawPtrRefLambdaCapturesChecker
return;
DeclRefExprsToIgnore.insert(ArgRef);
LambdasToIgnore.insert(L);
Checker->visitLambdaExpr(L, shouldCheckThis() && !hasProtectedThis(L),
ClsType, /* ignoreParamVarDecl */ true);
}

bool hasProtectedThis(LambdaExpr *L) {
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11 changes: 11 additions & 0 deletions clang/test/Analysis/Checkers/WebKit/uncounted-lambda-captures.cpp
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Expand Up @@ -372,6 +372,17 @@ void trivial_lambda() {
trivial_lambda();
}

bool call_lambda_var_decl() {
RefCountable* ref_countable = make_obj();
auto lambda1 = [&]() -> bool {
return ref_countable->next();
};
auto lambda2 = [=]() -> bool {
return ref_countable->next();
};
return lambda1() && lambda2();
}

void lambda_with_args(RefCountable* obj) {
auto trivial_lambda = [&](int v) {
obj->method();
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