1 // RUN: %clang_cc1 -fcxx-exceptions -fexceptions -fsyntax-only -verify %s
2
3 struct A; // expected-note 4 {{forward declaration of 'A'}}
4
5 struct Abstract { virtual void f() = 0; }; // expected-note {{unimplemented pure virtual method 'f'}}
6
trys()7 void trys() {
8 try {
9 } catch(int i) { // expected-note {{previous definition}}
10 int j = i;
11 int i; // expected-error {{redefinition of 'i'}}
12 } catch(float i) {
13 } catch(void v) { // expected-error {{cannot catch incomplete type 'void'}}
14 } catch(A a) { // expected-error {{cannot catch incomplete type 'A'}}
15 } catch(A *a) { // expected-error {{cannot catch pointer to incomplete type 'A'}}
16 } catch(A &a) { // expected-error {{cannot catch reference to incomplete type 'A'}}
17 } catch(Abstract) { // expected-error {{variable type 'Abstract' is an abstract class}}
18 } catch(...) {
19 int j = i; // expected-error {{use of undeclared identifier 'i'}}
20 }
21
22 try {
23 } catch(...) { // expected-error {{catch-all handler must come last}}
24 } catch(int) {
25 }
26 }
27
throws()28 void throws() {
29 throw;
30 throw 0;
31 throw throw; // expected-error {{cannot throw object of incomplete type 'void'}}
32 throw (A*)0; // expected-error {{cannot throw pointer to object of incomplete type 'A'}}
33 }
34
jumps()35 void jumps() {
36 l1:
37 goto l5;
38 goto l4; // expected-error {{cannot jump}}
39 goto l3; // expected-error {{cannot jump}}
40 goto l2; // expected-error {{cannot jump}}
41 goto l1;
42 try { // expected-note 4 {{jump bypasses initialization of try block}}
43 l2:
44 goto l5;
45 goto l4; // expected-error {{cannot jump}}
46 goto l3; // expected-error {{cannot jump}}
47 goto l2;
48 goto l1;
49 } catch(int) { // expected-note 4 {{jump bypasses initialization of catch block}}
50 l3:
51 goto l5;
52 goto l4; // expected-error {{cannot jump}}
53 goto l3;
54 goto l2; // expected-error {{cannot jump}}
55 goto l1;
56 } catch(...) { // expected-note 4 {{jump bypasses initialization of catch block}}
57 l4:
58 goto l5;
59 goto l4;
60 goto l3; // expected-error {{cannot jump}}
61 goto l2; // expected-error {{cannot jump}}
62 goto l1;
63 }
64 l5:
65 goto l5;
66 goto l4; // expected-error {{cannot jump}}
67 goto l3; // expected-error {{cannot jump}}
68 goto l2; // expected-error {{cannot jump}}
69 goto l1;
70 }
71
72 struct BadReturn {
BadReturnBadReturn73 BadReturn() try {
74 } catch(...) {
75 // Try to hide
76 try {
77 } catch(...) {
78 {
79 if (0)
80 return; // expected-error {{return in the catch of a function try block of a constructor is illegal}}
81 }
82 }
83 }
84 BadReturn(int);
85 };
86
BadReturn(int)87 BadReturn::BadReturn(int) try {
88 } catch(...) {
89 // Try to hide
90 try {
91 } catch(int) {
92 return; // expected-error {{return in the catch of a function try block of a constructor is illegal}}
93 } catch(...) {
94 {
95 if (0)
96 return; // expected-error {{return in the catch of a function try block of a constructor is illegal}}
97 }
98 }
99 }
100
101 // Cannot throw an abstract type.
102 class foo {
103 public:
foo()104 foo() {}
bar()105 void bar () {
106 throw *this; // expected-error{{cannot throw an object of abstract type 'foo'}}
107 }
108 virtual void test () = 0; // expected-note{{unimplemented pure virtual method 'test'}}
109 };
110
111 namespace PR6831 {
112 namespace NA { struct S; }
113 namespace NB { struct S; }
114
f()115 void f() {
116 using namespace NA;
117 using namespace NB;
118 try {
119 } catch (int S) {
120 }
121 }
122 }
123
124 namespace Decay {
125 struct A {
126 void f() throw (A[10]);
127 };
128
129 template<typename T> struct B {
130 void f() throw (B[10]);
131 };
132 template struct B<int>;
133
134 void f() throw (int[10], int(*)());
135 void f() throw (int*, int());
136
137 template<typename T> struct C {
138 void f() throw (T); // expected-error {{pointer to incomplete type 'Decay::E' is not allowed in exception specification}}
139 };
140 struct D {
141 C<D[10]> c;
142 };
143 struct E; // expected-note {{forward declaration}}
144 C<E[10]> e; // expected-note {{in instantiation of}}
145 }
146
147 void rval_ref() throw (int &&); // expected-error {{rvalue reference type 'int &&' is not allowed in exception specification}} expected-warning {{C++11}}
148