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This is accomplished by making VerifyDiagnosticsConsumer a CommentHandler, which then only reads the -verify directives that are actually in live blocks of code. It also makes it simpler to handle -verify directives that appear in header files, though we still have to manually reparse some files depending on how they are generated. This requires some test changes. In particular, all PCH tests now have their -verify directives outside the "header" portion of the file, using the @line syntax added in r159978. Other tests have been modified mostly to make it clear what is being tested, and to prevent polluting the expected output with the directives themselves. Patch by Andy Gibbs! (with slight modifications) The new Frontend/verify-* tests exercise the functionality of this commit, as well as r159978, r159979, and r160053 (Andy's other -verify enhancements). llvm-svn: 160068
99 lines
3.4 KiB
C
99 lines
3.4 KiB
C
// RUN: %clang_cc1 -fsyntax-only -verify -pedantic %s
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// RUN: %clang_cc1 -E %s 2>&1 | grep 'blonk.c:92:2: error: ABC'
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// RUN: %clang_cc1 -E %s 2>&1 | grep 'blonk.c:93:2: error: DEF'
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#line 'a' // expected-error {{#line directive requires a positive integer argument}}
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#line 0 // expected-warning {{#line directive with zero argument is a GNU extension}}
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#line 00 // expected-warning {{#line directive with zero argument is a GNU extension}}
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#line 2147483648 // expected-warning {{C requires #line number to be less than 2147483648, allowed as extension}}
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#line 42 // ok
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#line 42 'a' // expected-error {{invalid filename for #line directive}}
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#line 42 "foo/bar/baz.h" // ok
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// #line directives expand macros.
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#define A 42 "foo"
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#line A
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# 42
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# 42 "foo"
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# 42 "foo" 2 // expected-error {{invalid line marker flag '2': cannot pop empty include stack}}
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# 42 "foo" 1 3 // enter
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# 42 "foo" 2 3 // exit
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# 42 "foo" 2 3 4 // expected-error {{invalid line marker flag '2': cannot pop empty include stack}}
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# 42 "foo" 3 4
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# 'a' // expected-error {{invalid preprocessing directive}}
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# 42 'f' // expected-error {{invalid filename for line marker directive}}
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# 42 1 3 // expected-error {{invalid filename for line marker directive}}
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# 42 "foo" 3 1 // expected-error {{invalid flag line marker directive}}
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# 42 "foo" 42 // expected-error {{invalid flag line marker directive}}
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# 42 "foo" 1 2 // expected-error {{invalid flag line marker directive}}
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// These are checked by the RUN line.
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#line 92 "blonk.c"
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#error ABC
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#error DEF
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// expected-error@-2 {{ABC}}
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#line 150
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// expected-error@-3 {{DEF}}
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// Verify that linemarker diddling of the system header flag works.
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# 192 "glomp.h" // not a system header.
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typedef int x; // expected-note {{previous definition is here}}
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typedef int x; // expected-warning {{redefinition of typedef 'x' is a C11 feature}}
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# 192 "glomp.h" 3 // System header.
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typedef int y; // ok
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typedef int y; // ok
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typedef int q; // q is in system header.
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#line 42 "blonk.h" // doesn't change system headerness.
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typedef int z; // ok
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typedef int z; // ok
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# 97 // doesn't change system headerness.
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typedef int z1; // ok
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typedef int z1; // ok
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# 42 "blonk.h" // DOES change system headerness.
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typedef int w; // expected-note {{previous definition is here}}
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typedef int w; // expected-warning {{redefinition of typedef 'w' is a C11 feature}}
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typedef int q; // original definition in system header, should not diagnose.
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// This should not produce an "extra tokens at end of #line directive" warning,
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// because #line is allowed to contain expanded tokens.
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#define EMPTY()
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#line 2 "foo.c" EMPTY( )
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#line 2 "foo.c" NONEMPTY( ) // expected-warning{{extra tokens at end of #line directive}}
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// PR3940
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#line 0xf // expected-error {{#line directive requires a simple digit sequence}}
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#line 42U // expected-error {{#line directive requires a simple digit sequence}}
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// Line markers are digit strings interpreted as decimal numbers, this is
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// 10, not 8.
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#line 010 // expected-warning {{#line directive interprets number as decimal, not octal}}
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extern int array[__LINE__ == 10 ? 1:-1];
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/* PR3917 */
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#line 41
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extern char array2[\
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_\
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_LINE__ == 42 ? 1: -1]; /* line marker is location of first _ */
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// rdar://11550996
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#line 0 "line-directive.c" // expected-warning {{#line directive with zero argument is a GNU extension}}
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undefined t; // expected-error {{unknown type name 'undefined'}}
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