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137 lines
5.1 KiB
137 lines
5.1 KiB
# Copyright © 2020 Intel Corporation |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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import typing as T |
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from . import ExtensionModule, ModuleReturnValue |
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from .. import mlog |
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from ..build import BuildTarget, Executable, InvalidArguments |
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from ..dependencies import Dependency, ExternalLibrary |
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from ..interpreter import ExecutableHolder, permitted_kwargs |
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from ..interpreterbase import InterpreterException, permittedKwargs, FeatureNew |
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from ..mesonlib import stringlistify, unholder, listify |
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if T.TYPE_CHECKING: |
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from ..interpreter import ModuleState, Interpreter |
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class RustModule(ExtensionModule): |
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"""A module that holds helper functions for rust.""" |
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@FeatureNew('rust module', '0.57.0') |
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def __init__(self, interpreter: 'Interpreter') -> None: |
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super().__init__(interpreter) |
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@permittedKwargs(permitted_kwargs['test'] | {'dependencies'} ^ {'protocol'}) |
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def test(self, state: 'ModuleState', args: T.List, kwargs: T.Dict[str, T.Any]) -> ModuleReturnValue: |
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"""Generate a rust test target from a given rust target. |
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Rust puts it's unitests inside it's main source files, unlike most |
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languages that put them in external files. This means that normally |
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you have to define two separate targets with basically the same |
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arguments to get tests: |
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```meson |
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rust_lib_sources = [...] |
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rust_lib = static_library( |
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'rust_lib', |
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rust_lib_sources, |
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) |
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rust_lib_test = executable( |
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'rust_lib_test', |
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rust_lib_sources, |
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rust_args : ['--test'], |
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) |
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test( |
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'rust_lib_test', |
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rust_lib_test, |
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protocol : 'rust', |
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) |
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``` |
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This is all fine, but not very DRY. This method makes it much easier |
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to define rust tests: |
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```meson |
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rust = import('unstable-rust') |
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rust_lib = static_library( |
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'rust_lib', |
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[sources], |
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) |
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rust.test('rust_lib_test', rust_lib) |
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``` |
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""" |
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if len(args) != 2: |
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raise InterpreterException('rustmod.test() takes exactly 2 positional arguments') |
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name: str = args[0] |
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if not isinstance(name, str): |
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raise InterpreterException('First positional argument to rustmod.test() must be a string') |
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base_target: BuildTarget = unholder(args[1]) |
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if not isinstance(base_target, BuildTarget): |
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raise InterpreterException('Second positional argument to rustmod.test() must be a library or executable') |
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if not base_target.uses_rust(): |
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raise InterpreterException('Second positional argument to rustmod.test() must be a rust based target') |
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extra_args = stringlistify(kwargs.get('args', [])) |
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# Delete any arguments we don't want passed |
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if '--test' in extra_args: |
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mlog.warning('Do not add --test to rustmod.test arguments') |
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extra_args.remove('--test') |
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if '--format' in extra_args: |
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mlog.warning('Do not add --format to rustmod.test arguments') |
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i = extra_args.index('--format') |
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# Also delete the argument to --format |
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del extra_args[i + 1] |
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del extra_args[i] |
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for i, a in enumerate(extra_args): |
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if a.startswith('--format='): |
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del extra_args[i] |
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break |
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dependencies = unholder(listify(kwargs.get('dependencies', []))) |
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for d in dependencies: |
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if not isinstance(d, (Dependency, ExternalLibrary)): |
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raise InvalidArguments('dependencies must be a dependency or external library') |
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kwargs['args'] = extra_args + ['--test', '--format', 'pretty'] |
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kwargs['protocol'] = 'rust' |
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new_target_kwargs = base_target.kwargs.copy() |
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# Don't mutate the shallow copied list, instead replace it with a new |
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# one |
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new_target_kwargs['rust_args'] = new_target_kwargs.get('rust_args', []) + ['--test'] |
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new_target_kwargs['install'] = False |
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new_target_kwargs['dependencies'] = new_target_kwargs.get('dependencies', []) + dependencies |
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new_target = Executable( |
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name, base_target.subdir, state.subproject, |
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base_target.for_machine, base_target.sources, |
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base_target.objects, base_target.environment, |
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new_target_kwargs |
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) |
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e = ExecutableHolder(new_target, self.interpreter) |
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test = self.interpreter.make_test( |
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self.interpreter.current_node, [name, e], kwargs) |
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return ModuleReturnValue([], [e, test]) |
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def initialize(*args: T.List, **kwargs: T.Dict) -> RustModule: |
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return RustModule(*args, **kwargs) # type: ignore
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