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llvm-project/clang/test/Lexer/preamble.c

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Introduce a new lexer function to compute the "preamble" of a file, which is the part of the file that contains all of the initial comments, includes, and preprocessor directives that occur before any of the actual code. Added a new -print-preamble cc1 action that is only used for testing. llvm-svn: 108913
2010-07-21 04:18:03 +08:00
// Preamble detection test: see below for comments and test commands.
Make Lexer::ComputePreamble accept a LangOptions parameter, otherwise it may be out-of-sync how a file is compiled. Patch by Matthias Kleine! llvm-svn: 138580
2011-08-26 04:39:19 +08:00
//* A BCPL comment that includes '/*'
Introduce a new lexer function to compute the "preamble" of a file, which is the part of the file that contains all of the initial comments, includes, and preprocessor directives that occur before any of the actual code. Added a new -print-preamble cc1 action that is only used for testing. llvm-svn: 108913
2010-07-21 04:18:03 +08:00
#include <blah>
#ifndef FOO
#else
#ifdef BAR
#elif WIBBLE
#endif
#pragma unknown
#endif
#ifdef WIBBLE
Allow for unfinished #if blocks in preambles Previously, a preamble only included #if blocks (and friends like ifdef) if there was a corresponding #endif before any declaration or definition. The problem is that any header file that uses include guards will not have a preamble generated, which can make code-completion very slow. To prevent errors about unbalanced preprocessor conditionals in the preamble, and unbalanced preprocessor conditionals after a preamble containing unfinished conditionals, the conditional stack is stored in the pch file. This fixes PR26045. Differential Revision: http://reviews.llvm.org/D15994 llvm-svn: 304207
2017-05-30 19:54:55 +08:00
#include "foo"
int bar;
Introduce a new lexer function to compute the "preamble" of a file, which is the part of the file that contains all of the initial comments, includes, and preprocessor directives that occur before any of the actual code. Added a new -print-preamble cc1 action that is only used for testing. llvm-svn: 108913
2010-07-21 04:18:03 +08:00
#endif
// This test checks for detection of the preamble of a file, which
Allow for unfinished #if blocks in preambles Previously, a preamble only included #if blocks (and friends like ifdef) if there was a corresponding #endif before any declaration or definition. The problem is that any header file that uses include guards will not have a preamble generated, which can make code-completion very slow. To prevent errors about unbalanced preprocessor conditionals in the preamble, and unbalanced preprocessor conditionals after a preamble containing unfinished conditionals, the conditional stack is stored in the pch file. This fixes PR26045. Differential Revision: http://reviews.llvm.org/D15994 llvm-svn: 304207
2017-05-30 19:54:55 +08:00
// includes all of the starting comments and #includes.
Introduce a new lexer function to compute the "preamble" of a file, which is the part of the file that contains all of the initial comments, includes, and preprocessor directives that occur before any of the actual code. Added a new -print-preamble cc1 action that is only used for testing. llvm-svn: 108913
2010-07-21 04:18:03 +08:00
// RUN: %clang_cc1 -print-preamble %s > %t
tests: Make FileCheck version check that preamble isn't longer than we expected. llvm-svn: 109077
2010-07-22 10:22:24 +08:00
// RUN: echo END. >> %t
tests: Use FileCheck instead of external input; I think this test was failing on Win32 because of line ending differences. llvm-svn: 109029
2010-07-22 03:40:01 +08:00
// RUN: FileCheck < %t %s
// CHECK: // Preamble detection test: see below for comments and test commands.
Make Lexer::ComputePreamble accept a LangOptions parameter, otherwise it may be out-of-sync how a file is compiled. Patch by Matthias Kleine! llvm-svn: 138580
2011-08-26 04:39:19 +08:00
// CHECK-NEXT: //* A BCPL comment that includes '/*'
tests: Use FileCheck instead of external input; I think this test was failing on Win32 because of line ending differences. llvm-svn: 109029
2010-07-22 03:40:01 +08:00
// CHECK-NEXT: #include <blah>
// CHECK-NEXT: #ifndef FOO
// CHECK-NEXT: #else
// CHECK-NEXT: #ifdef BAR
// CHECK-NEXT: #elif WIBBLE
// CHECK-NEXT: #endif
// CHECK-NEXT: #pragma unknown
// CHECK-NEXT: #endif
Allow for unfinished #if blocks in preambles Previously, a preamble only included #if blocks (and friends like ifdef) if there was a corresponding #endif before any declaration or definition. The problem is that any header file that uses include guards will not have a preamble generated, which can make code-completion very slow. To prevent errors about unbalanced preprocessor conditionals in the preamble, and unbalanced preprocessor conditionals after a preamble containing unfinished conditionals, the conditional stack is stored in the pch file. This fixes PR26045. Differential Revision: http://reviews.llvm.org/D15994 llvm-svn: 304207
2017-05-30 19:54:55 +08:00
// CHECK-NEXT: #ifdef WIBBLE
// CHECK-NEXT: #include "foo"
tests: Make FileCheck version check that preamble isn't longer than we expected. llvm-svn: 109077
2010-07-22 10:22:24 +08:00
// CHECK-NEXT: END.