forked from OSchip/llvm-project
90 lines
2.7 KiB
C++
90 lines
2.7 KiB
C++
// RUN: %check_clang_tidy %s misc-unconventional-assign-operator %t -- -- -std=c++11 -isystem %S/Inputs/Headers
|
|
|
|
namespace std {
|
|
template <typename T>
|
|
struct remove_reference { typedef T type; };
|
|
template <typename T>
|
|
struct remove_reference<T &> { typedef T type; };
|
|
template <typename T>
|
|
struct remove_reference<T &&> { typedef T type; };
|
|
template <typename T>
|
|
typename remove_reference<T>::type &&move(T &&t);
|
|
}
|
|
|
|
|
|
struct Good {
|
|
Good& operator=(const Good&);
|
|
Good& operator=(Good&&);
|
|
|
|
// Assign from other types is fine too.
|
|
Good& operator=(int);
|
|
};
|
|
|
|
struct AlsoGood {
|
|
// By value is also fine.
|
|
AlsoGood& operator=(AlsoGood);
|
|
};
|
|
|
|
struct BadReturnType {
|
|
void operator=(const BadReturnType&);
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: operator=() should return 'BadReturnType&' [misc-unconventional-assign-operator]
|
|
const BadReturnType& operator=(BadReturnType&&);
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: operator=() should return 'Bad
|
|
void operator=(int);
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: operator=() should return 'Bad
|
|
};
|
|
|
|
struct BadReturnType2 {
|
|
BadReturnType2&& operator=(const BadReturnType2&);
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: operator=() should return 'Bad
|
|
int operator=(BadReturnType2&&);
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: operator=() should return 'Bad
|
|
};
|
|
|
|
struct BadArgument {
|
|
BadArgument& operator=(BadArgument&);
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: operator=() should take 'BadArgument const&', 'BadArgument&&' or 'BadArgument'
|
|
BadArgument& operator=(const BadArgument&&);
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: operator=() should take 'BadAr
|
|
};
|
|
|
|
struct BadModifier {
|
|
BadModifier& operator=(const BadModifier&) const;
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: operator=() should not be marked 'const'
|
|
};
|
|
|
|
struct Deleted {
|
|
// We don't check the return value of deleted operators.
|
|
void operator=(const Deleted&) = delete;
|
|
void operator=(Deleted&&) = delete;
|
|
};
|
|
|
|
class Private {
|
|
// We don't check the return value of private operators.
|
|
// Pre-C++11 way of disabling assignment.
|
|
void operator=(const Private &);
|
|
};
|
|
|
|
struct Virtual {
|
|
virtual Virtual& operator=(const Virtual &);
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: operator=() should not be marked 'virtual'
|
|
};
|
|
|
|
class BadReturnStatement {
|
|
int n;
|
|
|
|
public:
|
|
BadReturnStatement& operator=(BadReturnStatement&& rhs) {
|
|
n = std::move(rhs.n);
|
|
return rhs;
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:5: warning: operator=() should always return '*this'
|
|
}
|
|
|
|
// Do not check if return type is different from '&BadReturnStatement'
|
|
int operator=(int i) {
|
|
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: operator=() should return 'Bad
|
|
n = i;
|
|
return n;
|
|
}
|
|
};
|