diff options
Diffstat (limited to 'mesonbuild/ast/introspection.py')
| -rw-r--r-- | mesonbuild/ast/introspection.py | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/mesonbuild/ast/introspection.py b/mesonbuild/ast/introspection.py new file mode 100644 index 0000000..5d0ec5a --- /dev/null +++ b/mesonbuild/ast/introspection.py @@ -0,0 +1,241 @@ +# 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 . import AstInterpreter +from .. import compilers, environment, mesonlib, mparser, optinterpreter +from .. import coredata as cdata +from ..interpreterbase import InvalidArguments +from ..build import Executable, Jar, SharedLibrary, SharedModule, StaticLibrary +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): + self.cross_file = cross_file + self.native_file = None + self.cmd_line_options = {} + +class IntrospectionInterpreter(AstInterpreter): + # Interpreter to detect the options without a build directory + # Most of the code is stolen from interperter.Interpreter + def __init__(self, source_root, subdir, backend, cross_file=None, subproject='', subproject_dir='subprojects', env=None): + super().__init__(source_root, subdir) + + 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 = subproject + 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 = {} + self.targets = [] + + self.funcs.update({ + 'add_languages': self.func_add_languages, + '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, args, kwargs): + 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, mparser.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.cmd_line_options) + + if not self.is_subproject() and 'subproject_dir' in kwargs: + spdirname = kwargs['subproject_dir'] + if isinstance(spdirname, str): + self.subproject_dir = spdirname + 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): + 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) + subi.analyze() + subi.project_data['name'] = dirname + self.project_data['subprojects'] += [subi.project_data] + except: + return + + def func_add_languages(self, node, args, kwargs): + args = self.flatten_args(args) + need_cross_compiler = self.environment.is_cross_build() + for lang in sorted(args, key=compilers.sort_clink): + lang = lang.lower() + if lang not in self.coredata.compilers: + self.environment.detect_compilers(lang, need_cross_compiler) + + def build_target(self, node, args, kwargs, targetclass): + if not args: + return + kwargs = self.flatten_kwargs(kwargs, True) + name = self.flatten_args(args)[0] + srcqueue = [node] + if 'sources' in kwargs: + srcqueue += kwargs['sources'] + + source_nodes = [] + while srcqueue: + curr = srcqueue.pop(0) + arg_node = None + if isinstance(curr, mparser.FunctionNode): + arg_node = curr.args + elif isinstance(curr, mparser.ArrayNode): + arg_node = curr.args + elif isinstance(curr, mparser.IdNode): + # Try to resolve the ID and append the node to the queue + id = curr.value + if id in self.assignments and self.assignments[id]: + node = self.assignments[id][0] + if isinstance(node, (mparser.ArrayNode, mparser.IdNode, mparser.FunctionNode)): + srcqueue += [node] + if arg_node is None: + continue + elemetary_nodes = list(filter(lambda x: isinstance(x, (str, mparser.StringNode)), arg_node.arguments)) + srcqueue += list(filter(lambda x: isinstance(x, (mparser.FunctionNode, mparser.ArrayNode, mparser.IdNode)), arg_node.arguments)) + # Pop the first element if the function is a build target function + if isinstance(curr, mparser.FunctionNode) and curr.func_name in build_target_functions: + elemetary_nodes.pop(0) + if elemetary_nodes: + source_nodes += [curr] + + # Filter out kwargs from other target types. For example 'soversion' + # passed to library() when default_library == 'static'. + kwargs = {k: v for k, v in kwargs.items() if k in targetclass.known_kwargs} + + is_cross = False + objects = [] + empty_sources = [] # Passing the unresolved sources list causes errors + target = targetclass(name, self.subdir, self.subproject, is_cross, empty_sources, objects, self.environment, kwargs) + + self.targets += [{ + '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, + 'sources': source_nodes, + 'kwargs': kwargs, + 'node': node, + }] + + return + + def build_library(self, node, args, kwargs): + 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) + + def func_executable(self, node, args, kwargs): + return self.build_target(node, args, kwargs, Executable) + + def func_static_lib(self, node, args, kwargs): + return self.build_target(node, args, kwargs, StaticLibrary) + + def func_shared_lib(self, node, args, kwargs): + return self.build_target(node, args, kwargs, SharedLibrary) + + def func_both_lib(self, node, args, kwargs): + return self.build_target(node, args, kwargs, SharedLibrary) + + def func_shared_module(self, node, args, kwargs): + return self.build_target(node, args, kwargs, SharedModule) + + def func_library(self, node, args, kwargs): + return self.build_library(node, args, kwargs) + + def func_jar(self, node, args, kwargs): + return self.build_target(node, args, kwargs, Jar) + + def func_build_target(self, node, args, kwargs): + if 'target_type' not in kwargs: + return + target_type = kwargs.pop('target_type') + if isinstance(target_type, mparser.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) + + def is_subproject(self): + return self.subproject != '' + + def analyze(self): + self.load_root_meson_file() + self.sanity_check_ast() + self.parse_project() + self.run() |