Richard Trieu 553b2b2e5d Modify how the -verify flag works. Currently, the verification string and
diagnostic message are compared.  If either is a substring of the other, then
no error is given.  This gives rise to an unexpected case:

  // expect-error{{candidate function has different number of parameters}}

will match the following error messages from Clang:

  candidate function has different number of parameters (expected 1 but has 2)
  candidate function has different number of parameters

It will also match these other error messages:

  candidate function
  function has different number of parameters
  number of parameters

This patch will change so that the verification string must be a substring of
the diagnostic message before accepting.  Also, all the failing tests from this
change have been corrected.  Some stats from this cleanup:

87 - removed extra spaces around verification strings
70 - wording updates to diagnostics
40 - extra leading or trailing characters (typos, unmatched parens or quotes)
35 - diagnostic level was included (error:, warning:, or note:)
18 - flag name put in the warning (-Wprotocol)

llvm-svn: 146619
2011-12-15 00:38:15 +00:00

65 lines
1.8 KiB
C++

// RUN: %clang_cc1 -fsyntax-only -verify %s
namespace A {
class A {
friend void func(A);
friend A operator+(A,A);
};
}
namespace B {
class B {
static void func(B);
};
B operator+(B,B);
}
namespace D {
class D {};
}
namespace C {
class C {}; // expected-note {{candidate constructor (the implicit copy constructor) not viable: no known conversion from 'B::B' to 'const C::C &' for 1st argument}}
void func(C); // expected-note {{'C::func' declared here}} \
// expected-note {{passing argument to parameter here}}
C operator+(C,C);
D::D operator+(D::D,D::D);
}
namespace D {
using namespace C;
}
namespace Test {
void test() {
func(A::A());
// FIXME: namespace-aware typo correction causes an extra, misleading
// message in this case; some form of backtracking, diagnostic message
// delaying, or argument checking before emitting diagnostics is needed to
// avoid accepting and printing out a typo correction that proves to be
// incorrect once argument-dependent lookup resolution has occurred.
func(B::B()); // expected-error {{use of undeclared identifier 'func'; did you mean 'C::func'?}} \
// expected-error {{no viable conversion from 'B::B' to 'C::C'}}
func(C::C());
A::A() + A::A();
B::B() + B::B();
C::C() + C::C();
D::D() + D::D(); // expected-error {{invalid operands to binary expression ('D::D' and 'D::D')}}
}
}
// PR6716
namespace test1 {
template <class T> class A {
template <class U> friend void foo(A &, U); // expected-note {{not viable: 1st argument ('const A<int>') would lose const qualifier}}
public:
A();
};
void test() {
const A<int> a;
foo(a, 10); // expected-error {{no matching function for call to 'foo'}}
}
}