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# Copyright 2021 The Meson development team
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import pathlib
import typing as T
from mesonbuild.build import CustomTarget
from mesonbuild.compilers import detect_compiler_for
from mesonbuild.interpreterbase.decorators import FeatureNew, KwargInfo, typed_pos_args, typed_kwargs
from mesonbuild.interpreter.interpreterobjects import FileHolder
from mesonbuild.mesonlib import version_compare, MachineChoice
from . import ExtensionModule, ModuleReturnValue, ModuleState
from ..interpreter import Interpreter
class JavaModule(ExtensionModule):
@FeatureNew('Java Module', '0.60.0')
def __init__(self, interpreter: Interpreter):
super().__init__(interpreter)
self.methods.update({
'generate_native_header': self.generate_native_header,
})
if 'java' not in interpreter.environment.coredata.compilers[MachineChoice.BUILD]:
detect_compiler_for(interpreter.environment, 'java', MachineChoice.BUILD)
self.javac = interpreter.environment.coredata.compilers[MachineChoice.BUILD]['java']
@typed_pos_args('generate_native_header', (str, FileHolder))
@typed_kwargs('java.generate_native_header', KwargInfo('package', str, default=None))
def generate_native_header(self, state: ModuleState, args: T.Tuple[T.Union[str, FileHolder]],
kwargs: T.Dict[str, T.Optional[str]]) -> ModuleReturnValue:
assert state.backend
package = kwargs.get('package')
file = self.interpreter.source_strings_to_files(
[a.held_object if isinstance(a, FileHolder) else a for a in args])[0]
if package:
header = f'{package.replace(".", "_")}_{pathlib.Path(file.fname).stem}.h'
else:
header = f'{pathlib.Path(file.fname).stem}.h'
target = CustomTarget(
os.path.basename(header),
state.subdir,
state.subproject,
[
self.javac.exelist[0],
'-d',
'@PRIVATE_DIR@',
'-h',
state.subdir,
'@INPUT@',
],
[file],
[header],
backend=state.backend,
)
# It is only known that 1.8.0 won't pre-create the directory. 11 and 16
# do not exhibit this behavior.
if version_compare(self.javac.version, '1.8.0'):
pathlib.Path(state.backend.get_target_private_dir_abs(target)).mkdir(parents=True, exist_ok=True)
return ModuleReturnValue(target, [target])
def initialize(*args: T.Any, **kwargs: T.Any) -> JavaModule:
return JavaModule(*args, **kwargs)
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