def translation_units(compile_commands: cindex.CompilationDatabase, cache_path: Optional[str]) -> Iterator[typing.Union[cindex.TranslationUnit, SerializedTU]]:
'''Returns an iterator over a translation unit for each file in the compilation database.'''
compile_command: cindex.CompileCommand
for compile_command in compile_commands.getAllCompileCommands():
if cache_path:
full_path = os.path.join(
compile_command.directory,
compile_command.filename,
)
serialized_tu = read_tu(
cache_path,
full_path,
)
modified_time = os.path.getmtime(full_path)
if serialized_tu.serialization_time >= modified_time:
log(LogLevel.INFO, f'Using cached analysis for {full_path}')
yield serialized_tu
continue
log(
LogLevel.INFO,
f'parsing {compile_command.filename}'
)
try:
if 'lua' in compile_command.filename:
continue
os.chdir(compile_command.directory)
translation_unit = cindex.TranslationUnit.from_source(
os.path.join(compile_command.directory,
compile_command.filename),
args=[arg for arg in compile_command.arguments
if arg != compile_command.filename] + ['-I' + inc.decode() for inc in ccsyspath.system_include_paths('clang')],
)
for diag in translation_unit.diagnostics:
log(
LogLevel.WARNING,
f'Parsing: {compile_command.filename}: {diag}'
)
yield translation_unit
except cindex.TranslationUnitLoadError:
log(
LogLevel.WARNING,
f'could not parse {os.path.join(compile_command.directory, compile_command.filename)}',
)
