blueprint-compiler/blueprintcompiler/language/contexts.py
2023-07-09 14:26:37 +00:00

81 lines
2.5 KiB
Python

# contexts.py
#
# Copyright 2023 James Westman <james@jwestman.net>
#
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation; either version 3 of the
# License, or (at your option) any later version.
#
# This file is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# SPDX-License-Identifier: LGPL-3.0-or-later
import typing as T
from dataclasses import dataclass
from functools import cached_property
from .common import *
from .gobject_object import Object
from .gtkbuilder_template import Template
@dataclass
class ValueTypeCtx:
value_type: T.Optional[GirType]
allow_null: bool = False
@dataclass
class ScopeCtx:
node: AstNode
@cached_property
def template(self):
from .gtk_list_item_factory import ExtListItemFactory
from .ui import UI
if isinstance(self.node, UI):
return self.node.template
elif isinstance(self.node, ExtListItemFactory):
return self.node
@cached_property
def objects(self) -> T.Dict[str, Object]:
return {
obj.tokens["id"]: obj
for obj in self._iter_recursive(self.node)
if obj.tokens["id"] is not None
}
def validate_unique_ids(self) -> None:
from .gtk_list_item_factory import ExtListItemFactory
passed = {}
for obj in self._iter_recursive(self.node):
if obj.tokens["id"] is None:
continue
if obj.tokens["id"] in passed:
token = obj.group.tokens["id"]
if not isinstance(obj, Template) and not isinstance(
obj, ExtListItemFactory
):
raise CompileError(
f"Duplicate object ID '{obj.tokens['id']}'",
token.start,
token.end,
)
passed[obj.tokens["id"]] = obj
def _iter_recursive(self, node: AstNode):
yield node
for child in node.children:
if child.context[ScopeCtx] is self:
yield from self._iter_recursive(child)