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// RUN: %check_clang_tidy %s performance-move-constructor-init,modernize-pass-by-value %t -- \
// RUN: -config='{CheckOptions: \
// RUN: [{key: modernize-pass-by-value.ValuesOnly, value: true}]}' \
// RUN: -- -isystem %clang_tidy_headers
#include <s.h>
// CHECK-FIXES: #include <utility>
template <class T> struct remove_reference {typedef T type;};
template <class T> struct remove_reference<T&> {typedef T type;};
template <class T> struct remove_reference<T&&> {typedef T type;};
template <typename T>
typename remove_reference<T>::type&& move(T&& arg) {
return static_cast<typename remove_reference<T>::type&&>(arg);
}
struct C {
C() = default;
C(const C&) = default;
};
struct B {
B() {}
B(const B&) {}
B(B &&) {}
};
struct D : B {
D() : B() {}
D(const D &RHS) : B(RHS) {}
// CHECK-NOTES: :[[@LINE+3]]:16: warning: move constructor initializes base class by calling a copy constructor [performance-move-constructor-init]
// CHECK-NOTES: 26:3: note: copy constructor being called
// CHECK-NOTES: 27:3: note: candidate move constructor here
D(D &&RHS) : B(RHS) {}
};
struct E : B {
E() : B() {}
E(const E &RHS) : B(RHS) {}
E(E &&RHS) : B(move(RHS)) {} // ok
};
struct F {
C M;
F(F &&) : M(C()) {} // ok
};
struct G {
G() = default;
G(const G&) = default;
G(G&&) = delete;
};
struct H : G {
H() = default;
H(const H&) = default;
H(H &&RHS) : G(RHS) {} // ok
};
struct I {
I(const I &) = default; // suppresses move constructor creation
};
struct J : I {
J(J &&RHS) : I(RHS) {} // ok
};
struct K {}; // Has implicit copy and move constructors, is trivially copyable
struct L : K {
L(L &&RHS) : K(RHS) {} // ok
};
struct M {
B Mem;
// CHECK-NOTES: :[[@LINE+1]]:16: warning: move constructor initializes class member by calling a copy constructor [performance-move-constructor-init]
M(M &&RHS) : Mem(RHS.Mem) {}
// CHECK-NOTES: 26:3: note: copy constructor being called
// CHECK-NOTES: 27:3: note: candidate move constructor here
};
struct N {
B Mem;
N(N &&RHS) : Mem(move(RHS.Mem)) {}
};
struct O {
O(O&& other) : b(other.b) {} // ok
const B b;
};
struct P {
P(O&& other) : b(other.b) {} // ok
B b;
};
struct Movable {
Movable(Movable &&) = default;
Movable(const Movable &) = default;
Movable &operator=(const Movable &) = default;
~Movable() {}
};
struct TriviallyCopyable {
TriviallyCopyable() = default;
TriviallyCopyable(TriviallyCopyable &&) = default;
TriviallyCopyable(const TriviallyCopyable &) = default;
};
struct Positive {
Positive(Movable M) : M_(M) {}
// CHECK-NOTES: [[@LINE-1]]:12: warning: pass by value and use std::move [modernize-pass-by-value]
// CHECK-FIXES: Positive(Movable M) : M_(std::move(M)) {}
Movable M_;
};
struct NegativeMultipleInitializerReferences {
NegativeMultipleInitializerReferences(Movable M) : M_(M), n_(M) {}
Movable M_;
Movable n_;
};
struct NegativeReferencedInConstructorBody {
NegativeReferencedInConstructorBody(Movable M) : M_(M) { M_ = M; }
Movable M_;
};
struct NegativeParamTriviallyCopyable {
NegativeParamTriviallyCopyable(TriviallyCopyable T) : T_(T) {}
NegativeParamTriviallyCopyable(int I) : I_(I) {}
TriviallyCopyable T_;
int I_;
};
struct NegativeNotPassedByValue {
// This const ref constructor isn't warned about because the ValuesOnly option is set.
NegativeNotPassedByValue(const Movable &M) : M_(M) {}
NegativeNotPassedByValue(const Movable M) : M_(M) {}
NegativeNotPassedByValue(Movable &M) : M_(M) {}
NegativeNotPassedByValue(Movable *M) : M_(*M) {}
NegativeNotPassedByValue(const Movable *M) : M_(*M) {}
Movable M_;
};
struct Immovable {
Immovable(const Immovable &) = default;
Immovable(Immovable &&) = delete;
};
struct NegativeImmovableParameter {
NegativeImmovableParameter(Immovable I) : I_(I) {}
Immovable I_;
};
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