blob: feb9e6f408d967144b1f3bf991a70d1ae7d19397 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
// RUN: %clang_cc1 -fsyntax-only -Wredundant-move -std=c++11 -verify %s
// RUN: %clang_cc1 -fsyntax-only -Wredundant-move -std=c++11 -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
// definitions for std::move
namespace std {
inline namespace foo {
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 <class T> typename remove_reference<T>::type &&move(T &&t);
}
}
struct A {};
struct B : public A {};
A test1(B b1) {
B b2;
return b1;
return b2;
return std::move(b1);
// expected-warning@-1{{redundant move}}
// expected-note@-2{{remove std::move call}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:10-[[@LINE-3]]:20}:""
// CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:22-[[@LINE-4]]:23}:""
return std::move(b2);
// expected-warning@-1{{redundant move}}
// expected-note@-2{{remove std::move call}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:10-[[@LINE-3]]:20}:""
// CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:22-[[@LINE-4]]:23}:""
}
struct C {
C() {}
C(A) {}
};
C test2(A a1, B b1) {
A a2;
B b2;
return a1;
return a2;
return b1;
return b2;
return std::move(a1);
// expected-warning@-1{{redundant move}}
// expected-note@-2{{remove std::move call}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:10-[[@LINE-3]]:20}:""
// CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:22-[[@LINE-4]]:23}:""
return std::move(a2);
// expected-warning@-1{{redundant move}}
// expected-note@-2{{remove std::move call}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:10-[[@LINE-3]]:20}:""
// CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:22-[[@LINE-4]]:23}:""
return std::move(b1);
// expected-warning@-1{{redundant move}}
// expected-note@-2{{remove std::move call}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:10-[[@LINE-3]]:20}:""
// CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:22-[[@LINE-4]]:23}:""
return std::move(b2);
// expected-warning@-1{{redundant move}}
// expected-note@-2{{remove std::move call}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:10-[[@LINE-3]]:20}:""
// CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:22-[[@LINE-4]]:23}:""
}
// Copy of tests above with types changed to reference types.
A test3(B& b1) {
B& b2 = b1;
return b1;
return b2;
return std::move(b1);
return std::move(b2);
}
C test4(A& a1, B& b1) {
A& a2 = a1;
B& b2 = b1;
return a1;
return a2;
return b1;
return b2;
return std::move(a1);
return std::move(a2);
return std::move(b1);
return std::move(b2);
}
|
