diff options
Diffstat (limited to 'mesonbuild/interpreter/interpreter.py')
| -rw-r--r-- | mesonbuild/interpreter/interpreter.py | 59 |
1 files changed, 40 insertions, 19 deletions
diff --git a/mesonbuild/interpreter/interpreter.py b/mesonbuild/interpreter/interpreter.py index c103f7e..9bc7bd5 100644 --- a/mesonbuild/interpreter/interpreter.py +++ b/mesonbuild/interpreter/interpreter.py @@ -32,7 +32,7 @@ from ..interpreterbase import Disabler, disablerIfNotFound from ..interpreterbase import FeatureNew, FeatureDeprecated, FeatureNewKwargs, FeatureDeprecatedKwargs from ..interpreterbase import ObjectHolder, RangeHolder from ..interpreterbase import TYPE_nkwargs, TYPE_nvar, TYPE_var -from ..modules import ExtensionModule, ModuleObject, MutableModuleObject, NewExtensionModule +from ..modules import ExtensionModule, ModuleObject, MutableModuleObject, NewExtensionModule, NotFoundExtensionModule from ..cmake import CMakeInterpreter from ..backend.backends import Backend, ExecutableSerialisation @@ -161,6 +161,13 @@ _INSTALL_MODE_KW = KwargInfo( convertor=_install_mode_convertor, ) +_REQUIRED_KW = KwargInfo( + 'required', + (bool, coredata.UserFeatureOption), + default=True, + # TODO: extract_required_kwarg could be converted to a convertor +) + def stringifyUserArguments(args, quote=False): if isinstance(args, list): @@ -304,7 +311,7 @@ class Interpreter(InterpreterBase, HoldableObject): subproject: str = '', subdir: str = '', subproject_dir: str = 'subprojects', - modules: T.Optional[T.Dict[str, T.Union[ExtensionModule, NewExtensionModule]]] = None, + modules: T.Optional[T.Dict[str, T.Union[ExtensionModule, NewExtensionModule, NotFoundExtensionModule]]] = None, default_project_options: T.Optional[T.Dict[str, str]] = None, mock: bool = False, ast: T.Optional[mparser.CodeBlockNode] = None, @@ -601,33 +608,47 @@ class Interpreter(InterpreterBase, HoldableObject): dep = df.lookup(kwargs, force_fallback=True) self.build.stdlibs[for_machine][l] = dep + def _import_module(self, modname: str, required: bool) -> T.Union[ExtensionModule, NewExtensionModule, NotFoundExtensionModule]: + if modname in self.modules: + return self.modules[modname] + try: + module = importlib.import_module('mesonbuild.modules.' + modname) + except ImportError: + if required: + raise InvalidArguments(f'Module "{modname}" does not exist') + ext_module = NotFoundExtensionModule() + else: + ext_module = module.initialize(self) + assert isinstance(ext_module, (ExtensionModule, NewExtensionModule)) + self.modules[modname] = ext_module + return ext_module + @typed_pos_args('import', str) - @noKwargs - def func_import(self, node: mparser.BaseNode, args: T.Tuple[str], kwargs) -> ModuleObject: + @typed_kwargs( + 'import', + _REQUIRED_KW.evolve(since='0.59.0'), + KwargInfo('disabler', bool, default=False, since='0.59.0'), + ) + @disablerIfNotFound + def func_import(self, node: mparser.BaseNode, args: T.Tuple[str], + kwargs: 'kwargs.FuncImportModule') -> T.Union[ExtensionModule, NewExtensionModule, NotFoundExtensionModule]: modname = args[0] + disabled, required, _ = extract_required_kwarg(kwargs, self.subproject) + if disabled: + return NotFoundExtensionModule() + if modname.startswith('unstable-'): plainname = modname.split('-', 1)[1] try: # check if stable module exists - self._import_module(plainname) + mod = self._import_module(plainname, required) + # XXX: this is acutally not helpful, since it doesn't do a version check mlog.warning(f'Module {modname} is now stable, please use the {plainname} module instead.') - modname = plainname + return mod except InvalidArguments: mlog.warning('Module %s has no backwards or forwards compatibility and might not exist in future releases.' % modname, location=node) modname = 'unstable_' + plainname - - if modname in self.modules: - return self.modules[modname] - - try: - module = importlib.import_module('mesonbuild.modules.' + modname) - except ImportError: - raise InvalidArguments(f'Module "{modname}" does not exist') - ext_module = module.initialize(self) - assert isinstance(ext_module, ModuleObject) - self.modules[modname] = ext_module - - return ext_module + return self._import_module(modname, required) @stringArgs @noKwargs |