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# -*- coding: utf-8 -*-
# pylint: disable=too-many-lines
from __future__ import print_function
from __future__ import unicode_literals
import contextlib
from cmakelang import common
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
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 = []
@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)
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)
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