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// RUN: %check_clang_tidy -std=c++20-or-later %s cppcoreguidelines-avoid-capturing-lambda-coroutines %t -- -- -isystem %S/Inputs/system
#include <coroutines.h>
void Caught() {
int v;
[&] () -> task { int y = v; co_return; };
// CHECK-MESSAGES: [[@LINE-1]]:5: warning: coroutine lambda may cause use-after-free, avoid captures or ensure lambda closure object has guaranteed lifetime [cppcoreguidelines-avoid-capturing-lambda-coroutines]
[=] () -> task { int y = v; co_return; };
// CHECK-MESSAGES: [[@LINE-1]]:5: warning: coroutine lambda may cause use-after-free, avoid captures or ensure lambda closure object has guaranteed lifetime [cppcoreguidelines-avoid-capturing-lambda-coroutines]
[v] () -> task { co_return; };
// CHECK-MESSAGES: [[@LINE-1]]:5: warning: coroutine lambda may cause use-after-free, avoid captures or ensure lambda closure object has guaranteed lifetime [cppcoreguidelines-avoid-capturing-lambda-coroutines]
[&v] () -> task { co_return; };
// CHECK-MESSAGES: [[@LINE-1]]:5: warning: coroutine lambda may cause use-after-free, avoid captures or ensure lambda closure object has guaranteed lifetime [cppcoreguidelines-avoid-capturing-lambda-coroutines]
[y=v] () -> task { co_return; };
// CHECK-MESSAGES: [[@LINE-1]]:5: warning: coroutine lambda may cause use-after-free, avoid captures or ensure lambda closure object has guaranteed lifetime [cppcoreguidelines-avoid-capturing-lambda-coroutines]
[y{v}] () -> task { co_return; };
// CHECK-MESSAGES: [[@LINE-1]]:5: warning: coroutine lambda may cause use-after-free, avoid captures or ensure lambda closure object has guaranteed lifetime [cppcoreguidelines-avoid-capturing-lambda-coroutines]
}
struct S {
void m() {
[this] () -> task { co_return; };
// CHECK-MESSAGES: [[@LINE-1]]:9: warning: coroutine lambda may cause use-after-free, avoid captures or ensure lambda closure object has guaranteed lifetime [cppcoreguidelines-avoid-capturing-lambda-coroutines]
}
};
void Safe() {
int v;
[] () -> task { co_return; };
[&] () -> task { co_return; };
[=] () -> task { co_return; };
[&v]{++v;}();
}
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