def parse_text_fakefs(
text: Text, name: Text, print_on_error: bool, *,
f_import: Optional[Callable],
filename: Text) -> Tuple[ast.Module, type_info_mod.TypeInfo]:
"""Wraps parse_text with a *fake filesystem* holding "text" in "filename".
This primarily exists for use from testing infrastructure! For binaries and
libraries one would expect things to be in runfiles instead of text.
Args:
text: Text to put in the fake file.
name: Name to use for the module.
print_on_error: Whether to print to stderr if an error is encountered
parsing/typechecking the DSLX text.
f_import: Hook used when a module needs to import another module it depends
upon.
filename: Path to use in the fake filesystem for the contexts of the fake
file (with DSLX text).
Returns:
The DSLX module and the type information.
"""
fs = fakefs.FakeFilesystem()
fakefs_util.create_file(fs, filename, contents=text)
fake_open = fakefs.FakeFileOpen(fs)
return parse_text(text,
name,
print_on_error=print_on_error,
f_import=f_import,
filename=filename,
fs_open=fake_open)
def parse_text_fakefs(
text: Text, name: Text, print_on_error: bool, *,
import_cache: ImportCache, additional_search_paths: Tuple[str, ...],
filename: Text) -> Tuple[ast.Module, type_info_mod.TypeInfo]:
"""Wraps parse_text with a *fake filesystem* holding "text" in "filename".
This primarily exists for use from testing infrastructure! For binaries and
libraries one would expect things to be in runfiles instead of text.
Args:
text: Text to put in the fake file.
name: Name to use for the module.
print_on_error: Whether to print to stderr if an error is encountered
parsing/typechecking the DSLX text.
import_cache: Import cache to use for any module dependencies.
additional_search_paths: Additional search paths to use on import.
filename: Path to use in the fake filesystem for the contexts of the fake
file (with DSLX text).
Returns:
The DSLX module and the type information.
"""
fs = fakefs.FakeFilesystem()
fakefs_util.create_file(fs, filename, contents=text)
fake_open = fakefs.FakeFileOpen(fs)
return parse_text(text,
name,
print_on_error=print_on_error,
import_cache=import_cache,
additional_search_paths=additional_search_paths,
filename=filename,
fs_open=fake_open)
def scoped_fakefs(path: str, contents: str):
with ffu.Patcher() as patcher:
yield create_file(patcher.fs, path, contents=contents)