llvm-project/clang/test/SemaCXX/incomplete-call.cpp

68 lines
2.7 KiB
C++

// RUN: %clang_cc1 -fsyntax-only -verify %s
struct A; // expected-note 15 {{forward declaration of 'A'}}
A f(); // expected-note {{'f' declared here}}
template <typename T> A ft(T); // expected-note {{'ft' declared here}}
struct B {
A f(); // expected-note {{'f' declared here}}
A operator()(); // expected-note 2 {{'operator()' declared here}}
operator A(); // expected-note {{'operator A' declared here}}
A operator!(); // expected-note 2 {{'operator!' declared here}}
A operator++(int); // expected-note {{'operator++' declared here}}
A operator[](int); // expected-note {{'operator[]' declared here}}
A operator+(int); // expected-note {{'operator+' declared here}}
A operator->(); // expected-note {{'operator->' declared here}}
};
void g() {
f(); // expected-error {{calling 'f' with incomplete return type 'A'}}
typedef A (*Func)();
Func fp;
fp(); // expected-error {{calling function with incomplete return type 'A'}}
((Func)0)(); // expected-error {{calling function with incomplete return type 'A'}}
B b;
b.f(); // expected-error {{calling 'f' with incomplete return type 'A'}}
b.operator()(); // expected-error {{calling 'operator()' with incomplete return type 'A'}}
b.operator A(); // expected-error {{calling 'operator A' with incomplete return type 'A'}}
b.operator!(); // expected-error {{calling 'operator!' with incomplete return type 'A'}}
!b; // expected-error {{calling 'operator!' with incomplete return type 'A'}}
b(); // expected-error {{calling 'operator()' with incomplete return type 'A'}}
b++; // expected-error {{calling 'operator++' with incomplete return type 'A'}}
b[0]; // expected-error {{calling 'operator[]' with incomplete return type 'A'}}
b + 1; // expected-error {{calling 'operator+' with incomplete return type 'A'}}
b->f(); // expected-error {{calling 'operator->' with incomplete return type 'A'}}
A (B::*mfp)() = 0;
(b.*mfp)(); // expected-error {{calling function with incomplete return type 'A'}}
ft(42); // expected-error {{calling 'ft<int>' with incomplete return type 'A'}}
}
struct C; // expected-note{{forward declaration}}
void test_incomplete_object_call(C& c) {
c(); // expected-error{{incomplete type in call to object of type}}
}
void test_incomplete_object_dtor(C *p) {
p.~C(); // expected-error{{member reference type 'C *' is a pointer; did you mean to use '->'?}}
}
namespace pr18542 {
struct X {
int count;
template<typename CharT> class basic_istream;
template<typename CharT>
void basic_istream<CharT>::read() { // expected-error{{out-of-line definition of 'read' from class 'basic_istream<CharT>' without definition}}
count = 0;
}
};
}