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# Copyright 2016 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 mparser
from . import mesonlib
from . import environment
import os
class InterpreterException(mesonlib.MesonException):
pass
class InvalidCode(InterpreterException):
pass
class InvalidArguments(InterpreterException):
pass
class InterpreterBase:
def __init__(self, source_root, subdir):
self.source_root = source_root
self.funcs = {}
self.subdir = subdir
def load_root_meson_file(self):
mesonfile = os.path.join(self.source_root, self.subdir, environment.build_filename)
if not os.path.isfile(mesonfile):
raise InvalidArguments('Missing Meson file in %s' % mesonfile)
with open(mesonfile, encoding='utf8') as mf:
code = mf.read()
if len(code.strip()) == 0:
raise InvalidCode('Builder file is empty.')
assert(isinstance(code, str))
try:
self.ast = mparser.Parser(code).parse()
except mesonlib.MesonException as me:
me.file = environment.build_filename
raise me
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