Source code for cmakelang.parse

# -*- coding: utf-8 -*-
# pylint: disable=too-many-lines
from __future__ import print_function
from __future__ import unicode_literals

import contextlib

from cmakelang import common

[docs]class MockEverything(object): """Dummy object which implements any interface by mocking all functions with an empty implementation that returns None""" # pylint: disable=unused-argument def _dummy(self, *_args, **_kwargs): return def __getattr__(self, _name): return self._dummy
[docs]class ParseContext(object): """Global context passed through every function in the parse stack.""" def __init__(self, parse_db=None, lint_ctx=None, config=None): if parse_db is None: from cmakelang.parse.funs import get_parse_db parse_db = get_parse_db() self.parse_db = parse_db if lint_ctx is None: lint_ctx = MockEverything() self.lint_ctx = lint_ctx if config is None: from cmakelang import configuration config = configuration.Configuration() self.config = config # List of currently open parse nodes. Only used by nodes below # the statement level. self.argstack = []
[docs] @contextlib.contextmanager def pusharg(self, node): self.argstack.append(node) yield None if not self.argstack: raise common.InternalError( "Unexpected empty argstack, expected {}".format(node)) if self.argstack[-1] is not node: raise common.InternalError( "Unexpected node {} on argstack, expecting {}" .format(self.argstack[-1], node)) self.argstack.pop(-1)
[docs]def parse(tokens, ctx=None): """ digest tokens, then layout the digested blocks. """ if ctx is None: ctx = ParseContext() from cmakelang.parse.body_nodes import BodyNode return BodyNode.consume(ctx, tokens)