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
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
// RUN: %clang_cc1 -fsyntax-only -verify -fblocks -Wno-objc-root-class -std=c++14 %s
@protocol NSObject;
void bar(id(^)(void));
void foo(id <NSObject>(^objectCreationBlock)(void)) {
return bar(objectCreationBlock); // OK
}
void bar2(id(*)(void));
void foo2(id <NSObject>(*objectCreationBlock)(void)) {
return bar2(objectCreationBlock); // expected-warning{{incompatible pointer types passing 'id<NSObject> (*)()' to parameter of type 'id (*)()'}}
}
void bar3(id(*)()); // expected-note{{candidate function}}
void foo3(id (*objectCreationBlock)(int)) {
return bar3(objectCreationBlock); // expected-error{{no matching}}
}
void bar4(id(^)()); // expected-note{{candidate function}}
void foo4(id (^objectCreationBlock)(int)) {
return bar4(objectCreationBlock); // expected-error{{no matching}}
}
void foo5(id (^x)(int)) {
if (x) { }
}
// <rdar://problem/6590445>
@interface Foo {
@private
void (^_block)(void);
}
- (void)bar;
@end
namespace N {
class X { };
void foo(X);
}
@implementation Foo
- (void)bar {
_block();
foo(N::X()); // okay
}
@end
typedef signed char BOOL;
void foo6(void *block) {
void (^vb)(id obj, int idx, BOOL *stop) = (void (^)(id, int, BOOL *))block;
BOOL (^bb)(id obj, int idx, BOOL *stop) = (BOOL (^)(id, int, BOOL *))block;
}
// <rdar://problem/8600419>: Require that the types of block
// parameters are complete.
namespace N1 {
template<class _T> class ptr; // expected-note{{template is declared here}}
template<class _T>
class foo {
public:
void bar(void (^)(ptr<_T>));
};
class X;
void test2();
void test()
{
foo<X> f;
f.bar(^(ptr<X> _f) { // expected-error{{implicit instantiation of undefined template 'N1::ptr<N1::X>'}}
test2();
});
}
}
// Make sure we successfully instantiate the copy constructor of a
// __block variable's type.
namespace N2 {
template <int n> struct A {
A() {}
A(const A &other) {
int invalid[-n]; // expected-error 2 {{array with a negative size}}
}
};
void test1() {
__block A<1> x; // expected-note {{requested here}}
}
template <int n> void test2() {
__block A<n> x; // expected-note {{requested here}}
}
template void test2<2>();
}
// Handle value-dependent block declaration references.
namespace N3 {
template<int N> struct X { };
template<int N>
void f() {
X<N> xN = ^() { return X<N>(); }();
}
}
// rdar://8979379
@interface A
@end
@interface B : A
@end
void f(int (^bl)(A* a)); // expected-note {{candidate function not viable: no known conversion from 'int (^)(B *)' to 'int (^)(A *)' for 1st argument}}
void g() {
f(^(B* b) { return 0; }); // expected-error {{no matching function for call to 'f'}}
}
namespace DependentReturn {
template<typename T>
void f(T t) {
(void)^(T u) {
if (t != u)
return t + u;
else
return;
};
(void)^(T u) {
if (t == u)
return;
else
return t + u;
};
}
struct X { };
void operator+(X, X);
bool operator==(X, X);
bool operator!=(X, X);
template void f<X>(X);
}
namespace GenericLambdaCapture {
int test(int outerp) {
auto lambda =[&](auto p) {
return ^{
return p + outerp;
}();
};
return lambda(1);
}
}
namespace MoveBlockVariable {
struct B0 {
};
struct B1 { // expected-note 2 {{candidate constructor (the implicit}}
B1(B0&&); // expected-note {{candidate constructor not viable}}
};
B1 test_move() {
__block B0 b;
return b; // expected-error {{no viable conversion from returned value of type 'MoveBlockVariable::B0' to function return type 'MoveBlockVariable::B1'}}
}
}
|
