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# SPDX-License-Identifier: Apache-2.0
# Copyright 2021 The Meson development team
from __future__ import annotations
import pathlib
import typing as T
from mesonbuild import mesonlib
from mesonbuild.build import CustomTarget, CustomTargetIndex, GeneratedList, Target
from mesonbuild.compilers import detect_compiler_for
from mesonbuild.interpreterbase.decorators import ContainerTypeInfo, FeatureDeprecated, FeatureNew, KwargInfo, typed_pos_args, typed_kwargs
from mesonbuild.mesonlib import version_compare, MachineChoice
from . import NewExtensionModule, ModuleReturnValue, ModuleInfo
from ..interpreter.type_checking import NoneType
if T.TYPE_CHECKING:
from . import ModuleState
from ..compilers import Compiler
from ..interpreter import Interpreter
class JavaModule(NewExtensionModule):
INFO = ModuleInfo('java', '0.60.0')
def __init__(self, interpreter: Interpreter):
super().__init__()
self.methods.update({
'generate_native_headers': self.generate_native_headers,
'native_headers': self.native_headers,
})
def __get_java_compiler(self, state: ModuleState) -> Compiler:
if 'java' not in state.environment.coredata.compilers[MachineChoice.BUILD]:
detect_compiler_for(state.environment, 'java', MachineChoice.BUILD, False, state.subproject)
return state.environment.coredata.compilers[MachineChoice.BUILD]['java']
@FeatureNew('java.generate_native_headers', '0.62.0')
@FeatureDeprecated('java.generate_native_headers', '1.0.0')
@typed_pos_args(
'java.generate_native_headers',
varargs=(str, mesonlib.File, Target, CustomTargetIndex, GeneratedList))
@typed_kwargs(
'java.generate_native_headers',
KwargInfo('classes', ContainerTypeInfo(list, str), default=[], listify=True, required=True),
KwargInfo('package', (str, NoneType), default=None))
def generate_native_headers(self, state: ModuleState, args: T.Tuple[T.List[mesonlib.FileOrString]],
kwargs: T.Dict[str, T.Optional[str]]) -> ModuleReturnValue:
return self.__native_headers(state, args, kwargs)
@FeatureNew('java.native_headers', '1.0.0')
@typed_pos_args(
'java.native_headers',
varargs=(str, mesonlib.File, Target, CustomTargetIndex, GeneratedList))
@typed_kwargs(
'java.native_headers',
KwargInfo('classes', ContainerTypeInfo(list, str), default=[], listify=True, required=True),
KwargInfo('package', (str, NoneType), default=None))
def native_headers(self, state: ModuleState, args: T.Tuple[T.List[mesonlib.FileOrString]],
kwargs: T.Dict[str, T.Optional[str]]) -> ModuleReturnValue:
return self.__native_headers(state, args, kwargs)
def __native_headers(self, state: ModuleState, args: T.Tuple[T.List[mesonlib.FileOrString]],
kwargs: T.Dict[str, T.Optional[str]]) -> ModuleReturnValue:
classes = T.cast('T.List[str]', kwargs.get('classes'))
package = kwargs.get('package')
if package:
sanitized_package = package.replace("-", "_").replace(".", "_")
headers: T.List[str] = []
for clazz in classes:
sanitized_clazz = clazz.replace(".", "_")
if package:
headers.append(f'{sanitized_package}_{sanitized_clazz}.h')
else:
headers.append(f'{sanitized_clazz}.h')
javac = self.__get_java_compiler(state)
command = mesonlib.listify([
javac.exelist,
'-d',
'@PRIVATE_DIR@',
'-h',
state.subdir,
'@INPUT@',
])
prefix = classes[0] if not package else package
target = CustomTarget(f'{prefix}-native-headers',
state.subdir,
state.subproject,
state.environment,
command,
sources=args[0], outputs=headers, 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(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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