| # Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| # This file is meant to be included into an target to create a unittest that |
| # invokes a set of no-compile tests. A no-compile test is a test that asserts |
| # a particular construct will not compile. |
| # |
| # Also see: |
| # http://dev.chromium.org/developers/testing/no-compile-tests |
| # |
| # To use this, create a gyp target with the following form: |
| # { |
| # 'target_name': 'my_module_nc_unittests', |
| # 'type': 'executable', |
| # 'sources': [ |
| # 'nc_testset_1.nc', |
| # 'nc_testset_2.nc', |
| # ], |
| # 'includes': ['path/to/this/gypi/file'], |
| # } |
| # |
| # The .nc files are C++ files that contain code we wish to assert will not |
| # compile. Each individual test case in the file should be put in its own |
| # #ifdef section. The expected output should be appended with a C++-style |
| # comment that has a python list of regular expressions. This will likely |
| # be greater than 80-characters. Giving a solid expected output test is |
| # important so that random compile failures do not cause the test to pass. |
| # |
| # Example .nc file: |
| # |
| # #if defined(TEST_NEEDS_SEMICOLON) // [r"expected ',' or ';' at end of input"] |
| # |
| # int a = 1 |
| # |
| # #elif defined(TEST_NEEDS_CAST) // [r"invalid conversion from 'void*' to 'char*'"] |
| # |
| # void* a = NULL; |
| # char* b = a; |
| # |
| # #endif |
| # |
| # If we needed disable TEST_NEEDS_SEMICOLON, then change the define to: |
| # |
| # DISABLE_TEST_NEEDS_SEMICOLON |
| # TEST_NEEDS_CAST |
| # |
| # The lines above are parsed by a regexp so avoid getting creative with the |
| # formatting or ifdef logic; it will likely just not work. |
| # |
| # Implementation notes: |
| # The .nc files are actually processed by a python script which executes the |
| # compiler and generates a .cc file that is empty on success, or will have a |
| # series of #error lines on failure, and a set of trivially passing gunit |
| # TEST() functions on success. This allows us to fail at the compile step when |
| # something goes wrong, and know during the unittest run that the test was at |
| # least processed when things go right. |
| |
| { |
| # TODO(awong): Disabled until http://crbug.com/105388 is resolved. |
| 'sources/': [['exclude', '\\.nc$']], |
| 'conditions': [ |
| [ 'OS=="linux" and clang==0', { |
| 'rules': [ |
| { |
| 'variables': { |
| 'nocompile_driver': '<(DEPTH)/tools/nocompile_driver.py', |
| 'nc_result_path': ('<(INTERMEDIATE_DIR)/<(module_dir)/' |
| '<(RULE_INPUT_ROOT)_nc.cc'), |
| }, |
| 'rule_name': 'run_nocompile', |
| 'extension': 'nc', |
| 'inputs': [ |
| '<(nocompile_driver)', |
| ], |
| 'outputs': [ |
| '<(nc_result_path)' |
| ], |
| 'action': [ |
| 'python', |
| '<(nocompile_driver)', |
| '4', # number of compilers to invoke in parallel. |
| '<(RULE_INPUT_PATH)', |
| '-Wall -Werror -Wfatal-errors -I<(DEPTH)', |
| '<(nc_result_path)', |
| ], |
| 'message': 'Generating no compile results for <(RULE_INPUT_PATH)', |
| 'process_outputs_as_sources': 1, |
| }, |
| ], |
| }, { |
| 'sources/': [['exclude', '\\.nc$']] |
| }], # 'OS=="linux" and clang=="0"' |
| ], |
| } |
| |