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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 interpreterbase, mlog, mparser, mesonlib
from . import environment
from .interpreterbase import InterpreterException, InvalidArguments
import os, sys
class DontCareObject(interpreterbase.InterpreterObject):
pass
class MockExecutable(interpreterbase.InterpreterObject):
pass
class MockStaticLibrary(interpreterbase.InterpreterObject):
pass
class MockSharedLibrary(interpreterbase.InterpreterObject):
pass
class MockCustomTarget(interpreterbase.InterpreterObject):
pass
class MockRunTarget(interpreterbase.InterpreterObject):
pass
ADD_SOURCE = 0
REMOVE_SOURCE = 1
class AstInterpreter(interpreterbase.InterpreterBase):
def __init__(self, source_root, subdir):
super().__init__(source_root, subdir)
self.asts = {}
self.funcs.update({'project': self.func_do_nothing,
'test': self.func_do_nothing,
'benchmark': self.func_do_nothing,
'install_headers': self.func_do_nothing,
'install_man': self.func_do_nothing,
'install_data': self.func_do_nothing,
'install_subdir': self.func_do_nothing,
'configuration_data': self.func_do_nothing,
'configure_file': self.func_do_nothing,
'find_program': self.func_do_nothing,
'include_directories': self.func_do_nothing,
'add_global_arguments': self.func_do_nothing,
'add_global_link_arguments': self.func_do_nothing,
'add_project_arguments': self.func_do_nothing,
'add_project_link_arguments': self.func_do_nothing,
'message': self.func_do_nothing,
'generator': self.func_do_nothing,
'error': self.func_do_nothing,
'run_command': self.func_do_nothing,
'assert': self.func_do_nothing,
'subproject': self.func_do_nothing,
'dependency': self.func_do_nothing,
'get_option': self.func_do_nothing,
'join_paths': self.func_do_nothing,
'environment': self.func_do_nothing,
'import': self.func_do_nothing,
'vcs_tag': self.func_do_nothing,
'add_languages': self.func_do_nothing,
'declare_dependency': self.func_do_nothing,
'files': self.func_files,
'executable': self.func_executable,
'static_library': self.func_static_lib,
'shared_library': self.func_shared_lib,
'library': self.func_library,
'build_target': self.func_build_target,
'custom_target': self.func_custom_target,
'run_target': self.func_run_target,
'subdir': self.func_subdir,
'set_variable': self.func_set_variable,
'get_variable': self.func_get_variable,
'is_variable': self.func_is_variable,
})
def func_do_nothing(self, node, args, kwargs):
return True
def method_call(self, node):
return True
def func_executable(self, node, args, kwargs):
if args[0] == self.targetname:
if self.operation == ADD_SOURCE:
self.add_source_to_target(node, args, kwargs)
elif self.operation == REMOVE_SOURCE:
self.remove_source_from_target(node, args, kwargs)
else:
raise NotImplementedError('Bleep bloop')
return MockExecutable()
def func_static_lib(self, node, args, kwargs):
return MockStaticLibrary()
def func_shared_lib(self, node, args, kwargs):
return MockSharedLibrary()
def func_library(self, node, args, kwargs):
return self.func_shared_lib(node, args, kwargs)
def func_custom_target(self, node, args, kwargs):
return MockCustomTarget()
def func_run_target(self, node, args, kwargs):
return MockRunTarget()
def func_subdir(self, node, args, kwargs):
prev_subdir = self.subdir
subdir = os.path.join(prev_subdir, args[0])
self.subdir = subdir
buildfilename = os.path.join(self.subdir, environment.build_filename)
absname = os.path.join(self.source_root, buildfilename)
if not os.path.isfile(absname):
self.subdir = prev_subdir
raise InterpreterException('Nonexistent build def file %s.' % buildfilename)
with open(absname, encoding='utf8') as f:
code = f.read()
assert(isinstance(code, str))
try:
codeblock = mparser.Parser(code, self.subdir).parse()
self.asts[subdir] = codeblock
except mesonlib.MesonException as me:
me.file = buildfilename
raise me
self.evaluate_codeblock(codeblock)
self.subdir = prev_subdir
def func_files(self, node, args, kwargs):
if not isinstance(args, list):
return [args]
return args
def evaluate_arithmeticstatement(self, cur):
return 0
def evaluate_plusassign(self, node):
return 0
def evaluate_indexing(self, node):
return 0
def reduce_arguments(self, args):
assert(isinstance(args, mparser.ArgumentNode))
if args.incorrect_order():
raise InvalidArguments('All keyword arguments must be after positional arguments.')
return args.arguments, args.kwargs
def transform(self):
self.load_root_meson_file()
self.asts[''] = self.ast
self.sanity_check_ast()
self.parse_project()
self.run()
def add_source(self, targetname, filename):
self.operation = ADD_SOURCE
self.targetname = targetname
self.filename = filename
self.transform()
def remove_source(self, targetname, filename):
self.operation = REMOVE_SOURCE
self.targetname = targetname
self.filename = filename
self.transform()
def unknown_function_called(self, func_name):
mlog.warning('Unknown function called: ' + func_name)
def add_source_to_target(self, node, args, kwargs):
namespan = node.args.arguments[0].bytespan
buildfilename = os.path.join(self.source_root, self.subdir, environment.build_filename)
raw_data = open(buildfilename, 'r').read()
updated = raw_data[0:namespan[1]] + (", '%s'" % self.filename) + raw_data[namespan[1]:]
open(buildfilename, 'w').write(updated)
sys.exit(0)
def remove_argument_item(self, args, i):
assert(isinstance(args, mparser.ArgumentNode))
namespan = args.arguments[i].bytespan
# Usually remove the comma after this item but if it is
# the last argument, we need to remove the one before.
if i >= len(args.commas):
i -= 1
if i < 0:
commaspan = (0, 0) # Removed every entry in the list.
else:
commaspan = args.commas[i].bytespan
if commaspan[0] < namespan[0]:
commaspan, namespan = namespan, commaspan
buildfilename = os.path.join(self.source_root, args.subdir, environment.build_filename)
raw_data = open(buildfilename, 'r').read()
intermediary = raw_data[0:commaspan[0]] + raw_data[commaspan[1]:]
updated = intermediary[0:namespan[0]] + intermediary[namespan[1]:]
open(buildfilename, 'w').write(updated)
sys.exit(0)
def hacky_find_and_remove(self, node_to_remove):
for a in self.asts[node_to_remove.subdir].lines:
if a.lineno == node_to_remove.lineno:
if isinstance(a, mparser.AssignmentNode):
v = a.value
if not isinstance(v, mparser.ArrayNode):
raise NotImplementedError('Not supported yet, bro.')
args = v.args
for i in range(len(args.arguments)):
if isinstance(args.arguments[i], mparser.StringNode) and self.filename == args.arguments[i].value:
self.remove_argument_item(args, i)
raise NotImplementedError('Sukkess')
def remove_source_from_target(self, node, args, kwargs):
for i in range(1, len(node.args)):
# Is file name directly in function call as a string.
if isinstance(node.args.arguments[i], mparser.StringNode) and self.filename == node.args.arguments[i].value:
self.remove_argument_item(node.args, i)
# Is file name in a variable that gets expanded here.
if isinstance(node.args.arguments[i], mparser.IdNode):
avar = self.get_variable(node.args.arguments[i].value)
if not isinstance(avar, list):
raise NotImplementedError('Non-arrays not supported yet, sorry.')
for entry in avar:
if isinstance(entry, mparser.StringNode) and entry.value == self.filename:
self.hacky_find_and_remove(entry)
sys.exit('Could not find source %s in target %s.' % (self.filename, args[0]))
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