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# Copyright 2019 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.
# This file contains the detection logic for external dependencies that
# are UI-related.
import os
from .. import build
from ..mesonlib import unholder, relpath
import typing as T
if T.TYPE_CHECKING:
from ..interpreter import Interpreter
from ..interpreterbase import TYPE_var, TYPE_nvar, TYPE_nkwargs
class ModuleState:
"""Object passed to all module methods.
This is a WIP API provided to modules, it should be extended to have everything
needed so modules does not touch any other part of Meson internal APIs.
"""
def __init__(self, interpreter: 'Interpreter') -> None:
# Keep it private, it should be accessed only through methods.
self._interpreter = interpreter
self.source_root = interpreter.environment.get_source_dir()
self.build_to_src = relpath(interpreter.environment.get_source_dir(),
interpreter.environment.get_build_dir())
self.subproject = interpreter.subproject
self.subdir = interpreter.subdir
self.current_lineno = interpreter.current_lineno
self.environment = interpreter.environment
self.project_name = interpreter.build.project_name
self.project_version = interpreter.build.dep_manifest[interpreter.active_projectname]
# The backend object is under-used right now, but we will need it:
# https://github.com/mesonbuild/meson/issues/1419
self.backend = interpreter.backend
self.targets = interpreter.build.targets
self.data = interpreter.build.data
self.headers = interpreter.build.get_headers()
self.man = interpreter.build.get_man()
self.global_args = interpreter.build.global_args.host
self.project_args = interpreter.build.projects_args.host.get(interpreter.subproject, {})
self.build_machine = interpreter.builtin['build_machine'].held_object
self.host_machine = interpreter.builtin['host_machine'].held_object
self.target_machine = interpreter.builtin['target_machine'].held_object
self.current_node = interpreter.current_node
def get_include_args(self, include_dirs, prefix='-I'):
if not include_dirs:
return []
srcdir = self.environment.get_source_dir()
builddir = self.environment.get_build_dir()
dirs_str = []
for dirs in unholder(include_dirs):
if isinstance(dirs, str):
dirs_str += [f'{prefix}{dirs}']
continue
# Should be build.IncludeDirs object.
basedir = dirs.get_curdir()
for d in dirs.get_incdirs():
expdir = os.path.join(basedir, d)
srctreedir = os.path.join(srcdir, expdir)
buildtreedir = os.path.join(builddir, expdir)
dirs_str += [f'{prefix}{buildtreedir}',
f'{prefix}{srctreedir}']
for d in dirs.get_extra_build_dirs():
dirs_str += [f'{prefix}{d}']
return dirs_str
def find_program(self, prog: T.Union[str, T.List[str]], required: bool = True,
version_func: T.Optional[T.Callable[['ExternalProgram'], str]] = None,
wanted: T.Optional[str] = None) -> 'ExternalProgramHolder':
return self._interpreter.find_program_impl(prog, required=required)
class ModuleObject:
"""Base class for all objects returned by modules
"""
def __init__(self) -> None:
self.methods = {} # type: T.Dict[str, T.Callable[[ModuleState, T.List[TYPE_nvar], TYPE_nkwargs], T.Union[ModuleReturnValue, TYPE_var]]]
class MutableModuleObject(ModuleObject):
pass
# FIXME: Port all modules to stop using self.interpreter and use API on
# ModuleState instead. Modules should stop using this class and instead use
# ModuleObject base class.
class ExtensionModule(ModuleObject):
def __init__(self, interpreter: 'Interpreter') -> None:
super().__init__()
self.interpreter = interpreter
def is_module_library(fname):
'''
Check if the file is a library-like file generated by a module-specific
target, such as GirTarget or TypelibTarget
'''
if hasattr(fname, 'fname'):
fname = fname.fname
suffix = fname.split('.')[-1]
return suffix in ('gir', 'typelib')
class ModuleReturnValue:
def __init__(self, return_value: T.Optional['TYPE_var'], new_objects: T.List['TYPE_var']) -> None:
self.return_value = return_value
assert(isinstance(new_objects, list))
self.new_objects = new_objects
class GResourceTarget(build.CustomTarget):
def __init__(self, name, subdir, subproject, kwargs):
super().__init__(name, subdir, subproject, kwargs)
class GResourceHeaderTarget(build.CustomTarget):
def __init__(self, name, subdir, subproject, kwargs):
super().__init__(name, subdir, subproject, kwargs)
class GirTarget(build.CustomTarget):
def __init__(self, name, subdir, subproject, kwargs):
super().__init__(name, subdir, subproject, kwargs)
class TypelibTarget(build.CustomTarget):
def __init__(self, name, subdir, subproject, kwargs):
super().__init__(name, subdir, subproject, kwargs)
class VapiTarget(build.CustomTarget):
def __init__(self, name, subdir, subproject, kwargs):
super().__init__(name, subdir, subproject, kwargs)
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