aee4925507
Based on post-commit review discussion on 2bd84938470bf2e337801faafb8a67710f46429d with Richard Smith. Other uses of forcing HasEmptyPlaceHolder to false seem OK to me - they're all around pointer/reference types where the pointer/reference token will appear at the rightmost side of the left side of the type name, so they make nested types (eg: the "int" in "int *") behave as though there is a non-empty placeholder (because the "*" is essentially the placeholder as far as the "int" is concerned). This was originally committed in 277623f4d5a672d707390e2c3eaf30a9eb4b075c Reverted in f9ad1d1c775a8e264bebc15d75e0c6e5c20eefc7 due to breakages outside of clang - lldb seems to have some strange/strong dependence on "char [N]" versus "char[N]" when printing strings (not due to that name appearing in DWARF, but probably due to using clang to stringify type names) that'll need to be addressed, plus a few other odds and ends in other subprojects (clang-tools-extra, compiler-rt, etc).
48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s -Wno-uninitialized
|
|
|
|
struct A {};
|
|
|
|
struct BASE {
|
|
operator A(); // expected-note {{candidate function}}
|
|
};
|
|
|
|
struct BASE1 {
|
|
operator A(); // expected-note {{candidate function}}
|
|
};
|
|
|
|
class B : public BASE , public BASE1
|
|
{
|
|
public:
|
|
B();
|
|
} b;
|
|
|
|
extern B f();
|
|
|
|
const int& ri = (void)0; // expected-error {{reference to type 'const int' could not bind to an rvalue of type 'void'}}
|
|
|
|
int main() {
|
|
const A& rca = f(); // expected-error {{reference initialization of type 'const A &' with initializer of type 'B' is ambiguous}}
|
|
A& ra = f(); // expected-error {{non-const lvalue reference to type 'A' cannot bind to a temporary of type 'B'}}
|
|
}
|
|
|
|
struct PR6139 { A (&x)[1]; };
|
|
PR6139 x = {{A()}}; // expected-error{{non-const lvalue reference to type 'A[1]' cannot bind to an initializer list temporary}}
|
|
|
|
struct PR6139b { A (&x)[1]; };
|
|
PR6139b y = {A()}; // expected-error{{non-const lvalue reference to type 'A[1]' cannot bind to a temporary of type 'A'}}
|
|
|
|
namespace PR16502 {
|
|
struct A { int &&temporary; int x, y; };
|
|
int f();
|
|
const A &c = { 10, ++c.temporary };
|
|
}
|
|
|
|
namespace IncompleteTest {
|
|
struct String;
|
|
// expected-error@+1 {{reference to incomplete type 'const IncompleteTest::String' could not bind to an lvalue of type 'const char[1]'}}
|
|
void takeString(const String& = "") {} // expected-note {{passing argument to parameter here}}
|
|
void test() {
|
|
takeString();
|
|
}
|
|
}
|