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// RUN: %check_clang_tidy %s bugprone-unused-raii %t -- -- -fno-delayed-template-parsing
struct Foo {
Foo();
Foo(int);
Foo(int, int);
~Foo();
};
struct Bar {
Bar();
};
struct FooBar {
FooBar();
Foo f;
};
template <typename T>
void qux() {
T(42);
}
template <typename T>
struct TFoo {
TFoo(T);
~TFoo();
};
Foo f();
struct Ctor {
Ctor(int);
Ctor() {
Ctor(0); // TODO: warn here.
}
};
template <typename T>
void templ() {
T();
}
template <typename T>
void neverInstantiated() {
T();
}
struct CtorDefaultArg {
CtorDefaultArg(int i = 0);
~CtorDefaultArg();
};
template <typename T>
struct TCtorDefaultArg {
TCtorDefaultArg(T i = 0);
~TCtorDefaultArg();
};
struct CtorTwoDefaultArg {
CtorTwoDefaultArg(int i = 0, bool b = false);
~CtorTwoDefaultArg();
};
template <typename T>
void templatetest() {
TCtorDefaultArg<T>();
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?
// CHECK-FIXES: TCtorDefaultArg<T> give_me_a_name;
TCtorDefaultArg<T>{};
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?
// CHECK-FIXES: TCtorDefaultArg<T> give_me_a_name;
TCtorDefaultArg<T>(T{});
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?
// CHECK-FIXES: TCtorDefaultArg<T> give_me_a_name(T{});
TCtorDefaultArg<T>{T{}};
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?
// CHECK-FIXES: TCtorDefaultArg<T> give_me_a_name{T{}};
int i = 0;
(void)i;
}
template <typename T>
void aliastest() {
using X = Foo;
using Y = X;
using Z = Y;
Z(42);
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?
// CHECK-FIXES: Z give_me_a_name(42);
typedef Z ZT;
ZT(42, 13);
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?
// CHECK-FIXES: ZT give_me_a_name(42, 13);
using TT = TCtorDefaultArg<T>;
TT(42);
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?
// CHECK-FIXES: TT give_me_a_name(42);
(void)0;
}
void test() {
Foo(42);
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?
// CHECK-FIXES: Foo give_me_a_name(42);
Foo(23, 42);
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?
// CHECK-FIXES: Foo give_me_a_name(23, 42);
Foo();
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?
// CHECK-FIXES: Foo give_me_a_name;
TFoo<int>(23);
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?
// CHECK-FIXES: TFoo<int> give_me_a_name(23);
FooBar();
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?
// CHECK-FIXES: FooBar give_me_a_name;
Foo{42};
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?
// CHECK-FIXES: Foo give_me_a_name{42};
FooBar{};
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?
// CHECK-FIXES: FooBar give_me_a_name;
CtorDefaultArg();
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?
// CHECK-FIXES: CtorDefaultArg give_me_a_name;
CtorTwoDefaultArg();
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?
// CHECK-FIXES: CtorTwoDefaultArg give_me_a_name;
TCtorDefaultArg<int>();
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?
// CHECK-FIXES: TCtorDefaultArg<int> give_me_a_name;
TCtorDefaultArg<int>{};
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: object destroyed immediately after creation; did you mean to name the object?
// CHECK-FIXES: TCtorDefaultArg<int> give_me_a_name;
templ<FooBar>();
templ<Bar>();
Bar();
f();
qux<Foo>();
#define M Foo();
M
{
Foo();
}
Foo();
}
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