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#!/usr/bin/env python
import glob
import os
import posixpath
import re
def get_libcxx_paths():
utils_path = os.path.dirname(os.path.abspath(__file__))
script_name = os.path.basename(__file__)
assert os.path.exists(utils_path)
src_root = os.path.dirname(utils_path)
include_path = os.path.join(src_root, 'include')
assert os.path.exists(include_path)
libcxx_test_path = os.path.join(src_root, 'test', 'libcxx')
assert os.path.exists(libcxx_test_path)
return script_name, src_root, include_path, libcxx_test_path
script_name, source_root, include_path, libcxx_test_path = get_libcxx_paths()
header_markup = {
"atomic": ["ifndef _LIBCPP_HAS_NO_THREADS"],
"barrier": ["ifndef _LIBCPP_HAS_NO_THREADS"],
"future": ["ifndef _LIBCPP_HAS_NO_THREADS"],
"latch": ["ifndef _LIBCPP_HAS_NO_THREADS"],
"mutex": ["ifndef _LIBCPP_HAS_NO_THREADS"],
"semaphore": ["ifndef _LIBCPP_HAS_NO_THREADS"],
"shared_mutex": ["ifndef _LIBCPP_HAS_NO_THREADS"],
"thread": ["ifndef _LIBCPP_HAS_NO_THREADS"],
"experimental/filesystem": ["ifndef _LIBCPP_HAS_NO_FILESYSTEM_LIBRARY"],
"filesystem": ["ifndef _LIBCPP_HAS_NO_FILESYSTEM_LIBRARY"],
"format": ["ifndef _LIBCPP_HAS_NO_INCOMPLETE_FORMAT"],
"clocale": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
"codecvt": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
"fstream": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
"iomanip": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
"ios": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
"iostream": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
"istream": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
"locale.h": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
"locale": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
"ostream": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
"ranges": ["ifndef _LIBCPP_HAS_NO_INCOMPLETE_RANGES"],
"regex": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
"sstream": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
"streambuf": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
"strstream": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
"experimental/coroutine": ["if defined(__cpp_coroutines)"],
"experimental/regex": ["ifndef _LIBCPP_HAS_NO_LOCALIZATION"],
}
allowed_extensions = ['', '.h']
indent_width = 4
begin_pattern = """\
////////////////////////////////////////////////////////////////////////////////
// BEGIN-GENERATED-HEADERS
////////////////////////////////////////////////////////////////////////////////
"""
warning_note = """\
// WARNING: This test was generated by {script_name}
// and should not be edited manually.
""".format(script_name=script_name)
end_pattern = """\
////////////////////////////////////////////////////////////////////////////////
// END-GENERATED-HEADERS
////////////////////////////////////////////////////////////////////////////////
"""
generated_part_pattern = re.compile(re.escape(begin_pattern) + ".*" + re.escape(end_pattern),
re.MULTILINE | re.DOTALL)
headers_template = """\
// Top level headers
{top_level_headers}
// experimental headers
#if __cplusplus >= 201103L
{experimental_headers}
#endif // __cplusplus >= 201103L
// extended headers
{extended_headers}
"""
def should_keep_header(p, exclusions=None):
if os.path.isdir(p):
return False
if exclusions:
relpath = os.path.relpath(p, include_path)
relpath = posixpath.join(*os.path.split(relpath))
if relpath in exclusions:
return False
return os.path.splitext(p)[1] in allowed_extensions
def produce_include(relpath, indent_level, post_include=None):
relpath = posixpath.join(*os.path.split(relpath))
template = "{preambule}#{indentation}include <{include}>{post_include}{postambule}"
base_indentation = ' '*(indent_width * indent_level)
next_indentation = base_indentation + ' '*(indent_width)
post_include = "\n{}".format(post_include) if post_include else ''
markup = header_markup.get(relpath, None)
if markup:
preambule = '#{indentation}{directive}\n'.format(
directive=markup[0],
indentation=base_indentation,
)
postambule = '\n#{indentation}endif'.format(
indentation=base_indentation,
)
indentation = next_indentation
else:
preambule = ''
postambule = ''
indentation = base_indentation
return template.format(
include=relpath,
post_include=post_include,
preambule=preambule,
postambule=postambule,
indentation=indentation,
)
def produce_headers(path_parts, indent_level, post_include=None, exclusions=None):
pattern = os.path.join(*path_parts, '[a-z]*')
files = sorted(glob.glob(pattern, recursive=False))
include_headers = [
produce_include(os.path.relpath(p, include_path),
indent_level, post_include=post_include)
for p in files
if should_keep_header(p, exclusions)
]
return '\n'.join(include_headers)
def produce_top_level_headers(post_include=None, exclusions=None):
return produce_headers([include_path], 0, post_include=post_include, exclusions=exclusions)
def produce_experimental_headers(post_include=None, exclusions=None):
return produce_headers([include_path, 'experimental'], 1, post_include=post_include, exclusions=exclusions)
def produce_extended_headers(post_include=None, exclusions=None):
return produce_headers([include_path, 'ext'], 0, post_include=post_include, exclusions=exclusions)
def replace_generated_headers(test_path, test_str):
with open(test_path, 'r') as f:
content = f.read()
preambule = begin_pattern + '\n// clang-format off\n\n' + warning_note
postambule = '\n// clang-format on\n\n' + end_pattern
content = generated_part_pattern.sub(
preambule + test_str + postambule, content)
with open(test_path, 'w', newline='\n') as f:
f.write(content)
def produce_test(test_filename, exclusions=None, post_include=None):
test_str = headers_template.format(
top_level_headers=produce_top_level_headers(
post_include=post_include,
exclusions=exclusions,
),
experimental_headers=produce_experimental_headers(
post_include=post_include,
),
extended_headers=produce_extended_headers(
post_include=post_include,
),
)
replace_generated_headers(os.path.join(
libcxx_test_path, test_filename), test_str)
def main():
produce_test('double_include.sh.cpp')
produce_test('min_max_macros.compile.pass.cpp',
post_include='TEST_MACROS();')
produce_test('no_assert_include.compile.pass.cpp',
exclusions=['cassert'])
if __name__ == '__main__':
main()
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