The Meson Build System http://mesonbuild.com/
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

304 lines
14 KiB

# Copyright 2018 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 class contains the basic functionality needed to run any interpreter
# or an interpreter-based tool
from .interpreter import AstInterpreter
from .visitor import AstVisitor
from .. import compilers, environment, mesonlib, optinterpreter
from .. import coredata as cdata
from ..mesonlib import MachineChoice
from ..interpreterbase import InvalidArguments, TYPE_nvar
from ..build import Executable, Jar, SharedLibrary, SharedModule, StaticLibrary
from ..mparser import BaseNode, ArithmeticNode, ArrayNode, ElementaryNode, IdNode, FunctionNode, StringNode
import typing as T
import os
build_target_functions = ['executable', 'jar', 'library', 'shared_library', 'shared_module', 'static_library', 'both_libraries']
class IntrospectionHelper:
# mimic an argparse namespace
def __init__(self, cross_file: str):
self.cross_file = cross_file # type: str
self.native_file = None # type: str
self.cmd_line_options = {} # type: T.Dict[str, str]
class IntrospectionInterpreter(AstInterpreter):
# Interpreter to detect the options without a build directory
# Most of the code is stolen from interpreter.Interpreter
def __init__(self,
source_root: str,
subdir: str,
backend: str,
visitors: T.Optional[T.List[AstVisitor]] = None,
cross_file: T.Optional[str] = None,
subproject: str = '',
subproject_dir: str = 'subprojects',
env: T.Optional[environment.Environment] = None):
visitors = visitors if visitors is not None else []
super().__init__(source_root, subdir, subproject, visitors=visitors)
options = IntrospectionHelper(cross_file)
self.cross_file = cross_file
if env is None:
self.environment = environment.Environment(source_root, None, options)
else:
self.environment = env
self.subproject_dir = subproject_dir
self.coredata = self.environment.get_coredata()
self.option_file = os.path.join(self.source_root, self.subdir, 'meson_options.txt')
self.backend = backend
self.default_options = {'backend': self.backend}
self.project_data = {} # type: T.Dict[str, T.Any]
self.targets = [] # type: T.List[T.Dict[str, T.Any]]
self.dependencies = [] # type: T.List[T.Dict[str, T.Any]]
self.project_node = None # type: BaseNode
self.funcs.update({
'add_languages': self.func_add_languages,
'dependency': self.func_dependency,
'executable': self.func_executable,
'jar': self.func_jar,
'library': self.func_library,
'project': self.func_project,
'shared_library': self.func_shared_lib,
'shared_module': self.func_shared_module,
'static_library': self.func_static_lib,
'both_libraries': self.func_both_lib,
})
def func_project(self, node: BaseNode, args: T.List[TYPE_nvar], kwargs: T.Dict[str, TYPE_nvar]) -> None:
if self.project_node:
raise InvalidArguments('Second call to project()')
self.project_node = node
if len(args) < 1:
raise InvalidArguments('Not enough arguments to project(). Needs at least the project name.')
proj_name = args[0]
proj_vers = kwargs.get('version', 'undefined')
proj_langs = self.flatten_args(args[1:])
if isinstance(proj_vers, ElementaryNode):
proj_vers = proj_vers.value
if not isinstance(proj_vers, str):
proj_vers = 'undefined'
self.project_data = {'descriptive_name': proj_name, 'version': proj_vers}
if os.path.exists(self.option_file):
oi = optinterpreter.OptionInterpreter(self.subproject)
oi.process(self.option_file)
self.coredata.merge_user_options(oi.options)
def_opts = self.flatten_args(kwargs.get('default_options', []))
self.project_default_options = mesonlib.stringlistify(def_opts)
self.project_default_options = cdata.create_options_dict(self.project_default_options)
self.default_options.update(self.project_default_options)
self.coredata.set_default_options(self.default_options, self.subproject, self.environment)
if not self.is_subproject() and 'subproject_dir' in kwargs:
spdirname = kwargs['subproject_dir']
if isinstance(spdirname, StringNode):
assert isinstance(spdirname.value, str)
self.subproject_dir = spdirname.value
if not self.is_subproject():
self.project_data['subprojects'] = []
subprojects_dir = os.path.join(self.source_root, self.subproject_dir)
if os.path.isdir(subprojects_dir):
for i in os.listdir(subprojects_dir):
if os.path.isdir(os.path.join(subprojects_dir, i)):
self.do_subproject(i)
self.coredata.init_backend_options(self.backend)
options = {k: v for k, v in self.environment.cmd_line_options.items() if k.startswith('backend_')}
self.coredata.set_options(options)
self.func_add_languages(None, proj_langs, None)
def do_subproject(self, dirname: str) -> None:
subproject_dir_abs = os.path.join(self.environment.get_source_dir(), self.subproject_dir)
subpr = os.path.join(subproject_dir_abs, dirname)
try:
subi = IntrospectionInterpreter(subpr, '', self.backend, cross_file=self.cross_file, subproject=dirname, subproject_dir=self.subproject_dir, env=self.environment, visitors=self.visitors)
subi.analyze()
subi.project_data['name'] = dirname
self.project_data['subprojects'] += [subi.project_data]
except (mesonlib.MesonException, RuntimeError):
return
def func_add_languages(self, node: BaseNode, args: T.List[TYPE_nvar], kwargs: T.Dict[str, TYPE_nvar]) -> None:
args = self.flatten_args(args)
for for_machine in [MachineChoice.BUILD, MachineChoice.HOST]:
for lang in sorted(args, key=compilers.sort_clink):
if isinstance(lang, StringNode):
assert isinstance(lang.value, str)
lang = lang.value
if not isinstance(lang, str):
continue
lang = lang.lower()
if lang not in self.coredata.compilers[for_machine]:
self.environment.detect_compiler_for(lang, for_machine)
def func_dependency(self, node: BaseNode, args: T.List[TYPE_nvar], kwargs: T.Dict[str, TYPE_nvar]) -> None:
args = self.flatten_args(args)
kwargs = self.flatten_kwargs(kwargs)
if not args:
return
name = args[0]
has_fallback = 'fallback' in kwargs
required = kwargs.get('required', True)
version = kwargs.get('version', [])
if not isinstance(version, list):
version = [version]
if isinstance(required, ElementaryNode):
required = required.value
if not isinstance(required, bool):
required = False
self.dependencies += [{
'name': name,
'required': required,
'version': version,
'has_fallback': has_fallback,
'conditional': node.condition_level > 0,
'node': node
}]
def build_target(self, node: BaseNode, args: T.List[TYPE_nvar], kwargs_raw: T.Dict[str, TYPE_nvar], targetclass) -> T.Optional[T.Dict[str, T.Any]]:
args = self.flatten_args(args)
if not args or not isinstance(args[0], str):
return None
name = args[0]
srcqueue = [node]
# Process the sources BEFORE flattening the kwargs, to preserve the original nodes
if 'sources' in kwargs_raw:
srcqueue += mesonlib.listify(kwargs_raw['sources'])
kwargs = self.flatten_kwargs(kwargs_raw, True)
source_nodes = [] # type: T.List[BaseNode]
while srcqueue:
curr = srcqueue.pop(0)
arg_node = None
assert(isinstance(curr, BaseNode))
if isinstance(curr, FunctionNode):
arg_node = curr.args
elif isinstance(curr, ArrayNode):
arg_node = curr.args
elif isinstance(curr, IdNode):
# Try to resolve the ID and append the node to the queue
assert isinstance(curr.value, str)
var_name = curr.value
if var_name in self.assignments:
tmp_node = self.assignments[var_name]
if isinstance(tmp_node, (ArrayNode, IdNode, FunctionNode)):
srcqueue += [tmp_node]
elif isinstance(curr, ArithmeticNode):
srcqueue += [curr.left, curr.right]
if arg_node is None:
continue
arg_nodes = arg_node.arguments.copy()
# Pop the first element if the function is a build target function
if isinstance(curr, FunctionNode) and curr.func_name in build_target_functions:
arg_nodes.pop(0)
elemetary_nodes = [x for x in arg_nodes if isinstance(x, (str, StringNode))]
srcqueue += [x for x in arg_nodes if isinstance(x, (FunctionNode, ArrayNode, IdNode, ArithmeticNode))]
if elemetary_nodes:
source_nodes += [curr]
# Make sure nothing can crash when creating the build class
kwargs_reduced = {k: v for k, v in kwargs.items() if k in targetclass.known_kwargs and k in ['install', 'build_by_default', 'build_always']}
kwargs_reduced = {k: v.value if isinstance(v, ElementaryNode) else v for k, v in kwargs_reduced.items()}
kwargs_reduced = {k: v for k, v in kwargs_reduced.items() if not isinstance(v, BaseNode)}
for_machine = MachineChoice.HOST
objects = [] # type: T.List[T.Any]
empty_sources = [] # type: T.List[T.Any]
# Passing the unresolved sources list causes errors
target = targetclass(name, self.subdir, self.subproject, for_machine, empty_sources, objects, self.environment, kwargs_reduced)
new_target = {
'name': target.get_basename(),
'id': target.get_id(),
'type': target.get_typename(),
'defined_in': os.path.normpath(os.path.join(self.source_root, self.subdir, environment.build_filename)),
'subdir': self.subdir,
'build_by_default': target.build_by_default,
'installed': target.should_install(),
'outputs': target.get_outputs(),
'sources': source_nodes,
'kwargs': kwargs,
'node': node,
}
self.targets += [new_target]
return new_target
def build_library(self, node: BaseNode, args: T.List[TYPE_nvar], kwargs: T.Dict[str, TYPE_nvar]) -> T.Optional[T.Dict[str, T.Any]]:
default_library = self.coredata.get_builtin_option('default_library')
if default_library == 'shared':
return self.build_target(node, args, kwargs, SharedLibrary)
elif default_library == 'static':
return self.build_target(node, args, kwargs, StaticLibrary)
elif default_library == 'both':
return self.build_target(node, args, kwargs, SharedLibrary)
return None
def func_executable(self, node: BaseNode, args: T.List[TYPE_nvar], kwargs: T.Dict[str, TYPE_nvar]) -> T.Optional[T.Dict[str, T.Any]]:
return self.build_target(node, args, kwargs, Executable)
def func_static_lib(self, node: BaseNode, args: T.List[TYPE_nvar], kwargs: T.Dict[str, TYPE_nvar]) -> T.Optional[T.Dict[str, T.Any]]:
return self.build_target(node, args, kwargs, StaticLibrary)
def func_shared_lib(self, node: BaseNode, args: T.List[TYPE_nvar], kwargs: T.Dict[str, TYPE_nvar]) -> T.Optional[T.Dict[str, T.Any]]:
return self.build_target(node, args, kwargs, SharedLibrary)
def func_both_lib(self, node: BaseNode, args: T.List[TYPE_nvar], kwargs: T.Dict[str, TYPE_nvar]) -> T.Optional[T.Dict[str, T.Any]]:
return self.build_target(node, args, kwargs, SharedLibrary)
def func_shared_module(self, node: BaseNode, args: T.List[TYPE_nvar], kwargs: T.Dict[str, TYPE_nvar]) -> T.Optional[T.Dict[str, T.Any]]:
return self.build_target(node, args, kwargs, SharedModule)
def func_library(self, node: BaseNode, args: T.List[TYPE_nvar], kwargs: T.Dict[str, TYPE_nvar]) -> T.Optional[T.Dict[str, T.Any]]:
return self.build_library(node, args, kwargs)
def func_jar(self, node: BaseNode, args: T.List[TYPE_nvar], kwargs: T.Dict[str, TYPE_nvar]) -> T.Optional[T.Dict[str, T.Any]]:
return self.build_target(node, args, kwargs, Jar)
def func_build_target(self, node: BaseNode, args: T.List[TYPE_nvar], kwargs: T.Dict[str, TYPE_nvar]) -> T.Optional[T.Dict[str, T.Any]]:
if 'target_type' not in kwargs:
return None
target_type = kwargs.pop('target_type')
if isinstance(target_type, ElementaryNode):
target_type = target_type.value
if target_type == 'executable':
return self.build_target(node, args, kwargs, Executable)
elif target_type == 'shared_library':
return self.build_target(node, args, kwargs, SharedLibrary)
elif target_type == 'static_library':
return self.build_target(node, args, kwargs, StaticLibrary)
elif target_type == 'both_libraries':
return self.build_target(node, args, kwargs, SharedLibrary)
elif target_type == 'library':
return self.build_library(node, args, kwargs)
elif target_type == 'jar':
return self.build_target(node, args, kwargs, Jar)
return None
def is_subproject(self) -> bool:
return self.subproject != ''
def analyze(self) -> None:
self.load_root_meson_file()
self.sanity_check_ast()
self.parse_project()
self.run()