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llvm-project/clang/test/Misc/diag-verify.cpp

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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 08:38:15 +08:00
// RUN: %clang_cc1 -fsyntax-only -verify %s 2>&1 | FileCheck %s
// Test the -verify flag. Each of the "x = y;" lines will produce a
// "use of undeclared identifier 'y'" error message.
void test() {
int x;
// Proper matches here.
x = y; // expected-error{{use of undeclared identifier 'y'}}
x = y; // expected-error{{use of undeclared identifier}}
x = y; // expected-error{{undeclared identifier 'y'}}
x = y; // expected-error{{use of}}
x = y; // expected-error{{undeclared identifier}}
x = y; // expected-error{{'y'}}
// Bad matches here.
x = y; // expected-error{{use of undeclared identifier 'y' is fine}}
x = y; // expected-error{{abuse of undeclared identifier 'y'}}
x = y; // expected-error{{good use of undeclared identifier 'y' in code}}
x = y; // expected-error{{ use of undeclared identifier 'y' }}
x = y; // expected-error{{use of undeclared identifier 'y' is disallowed}}
x = y; // expected-error{{please don't use of undeclared identifier 'y'}}
x = y; // expected-error{{use of undeclared identifier 'y'; please declare y before use}}
x = y; // expected-error{{use of use of undeclared identifier 'y'}}
x = y; // expected-error{{use of undeclared identifier 'y' identifier 'y'}}
}
//CHECK: error: 'error' diagnostics expected but not seen:
//CHECK: Line 17: use of undeclared identifier 'y' is fine
//CHECK: Line 18: abuse of undeclared identifier 'y'
//CHECK: Line 19: good use of undeclared identifier 'y' in code
//CHECK: Line 20: use of undeclared identifier 'y'
//CHECK: Line 21: use of undeclared identifier 'y' is disallowed
//CHECK: Line 22: please don't use of undeclared identifier 'y'
//CHECK: Line 23: use of undeclared identifier 'y'; please declare y before use
//CHECK: Line 24: use of use of undeclared identifier 'y'
//CHECK: Line 25: use of undeclared identifier 'y' identifier 'y'
//CHECK: error: 'error' diagnostics seen but not expected:
//CHECK: Line 17: use of undeclared identifier 'y'
//CHECK: Line 18: use of undeclared identifier 'y'
//CHECK: Line 19: use of undeclared identifier 'y'
//CHECK: Line 20: use of undeclared identifier 'y'
//CHECK: Line 21: use of undeclared identifier 'y'
//CHECK: Line 22: use of undeclared identifier 'y'
//CHECK: Line 23: use of undeclared identifier 'y'
//CHECK: Line 24: use of undeclared identifier 'y'
//CHECK: Line 25: use of undeclared identifier 'y'
//CHECK: 18 errors generated.