llvm-for-llvmta/tools/clang/test/Analysis/Checkers/WebKit/uncounted-lambda-captures.cpp

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2022-04-25 13:02:35 +02:00
// RUN: %clang_analyze_cc1 -analyzer-checker=webkit.UncountedLambdaCapturesChecker %s 2>&1 | FileCheck %s --strict-whitespace
#include "mock-types.h"
void raw_ptr() {
RefCountable* ref_countable = nullptr;
auto foo1 = [ref_countable](){};
// CHECK: warning: Captured raw-pointer 'ref_countable' to uncounted type is unsafe [webkit.UncountedLambdaCapturesChecker]
// CHECK-NEXT:{{^}} auto foo1 = [ref_countable](){};
// CHECK-NEXT:{{^}} ^
auto foo2 = [&ref_countable](){};
// CHECK: warning: Captured raw-pointer 'ref_countable' to uncounted type is unsafe [webkit.UncountedLambdaCapturesChecker]
auto foo3 = [&](){ ref_countable = nullptr; };
// CHECK: warning: Implicitly captured raw-pointer 'ref_countable' to uncounted type is unsafe [webkit.UncountedLambdaCapturesChecker]
// CHECK-NEXT:{{^}} auto foo3 = [&](){ ref_countable = nullptr; };
// CHECK-NEXT:{{^}} ^
auto foo4 = [=](){ (void) ref_countable; };
// CHECK: warning: Implicitly captured raw-pointer 'ref_countable' to uncounted type is unsafe [webkit.UncountedLambdaCapturesChecker]
}
void references() {
RefCountable automatic;
RefCountable& ref_countable_ref = automatic;
auto foo1 = [ref_countable_ref](){};
// CHECK: warning: Captured reference 'ref_countable_ref' to uncounted type is unsafe [webkit.UncountedLambdaCapturesChecker]
auto foo2 = [&ref_countable_ref](){};
// CHECK: warning: Captured reference 'ref_countable_ref' to uncounted type is unsafe [webkit.UncountedLambdaCapturesChecker]
auto foo3 = [&](){ (void) ref_countable_ref; };
// CHECK: warning: Implicitly captured reference 'ref_countable_ref' to uncounted type is unsafe [webkit.UncountedLambdaCapturesChecker]
auto foo4 = [=](){ (void) ref_countable_ref; };
// CHECK: warning: Implicitly captured reference 'ref_countable_ref' to uncounted type is unsafe [webkit.UncountedLambdaCapturesChecker]
}
void quiet() {
// This code is not expected to trigger any warnings.
{
RefCountable automatic;
RefCountable &ref_countable_ref = automatic;
}
auto foo3 = [&]() {};
auto foo4 = [=]() {};
RefCountable *ref_countable = nullptr;
}