mirror of
https://gitlab.gnome.org/jwestman/blueprint-compiler.git
synced 2025-05-03 15:49:07 -04:00
88 lines
2.8 KiB
Python
88 lines
2.8 KiB
Python
# gtkbuilder_template.py
|
|
#
|
|
# Copyright 2022 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 blueprintcompiler.language.common import GirType
|
|
|
|
from ..gir import TemplateType
|
|
from .common import *
|
|
from .gobject_object import Object, ObjectContent
|
|
from .types import ClassName, TemplateClassName
|
|
|
|
|
|
class Template(Object):
|
|
grammar = [
|
|
UseExact("id", "template"),
|
|
to_parse_node(TemplateClassName).expected("template type"),
|
|
Optional(
|
|
[
|
|
Match(":"),
|
|
to_parse_node(ClassName).expected("parent class"),
|
|
]
|
|
),
|
|
ObjectContent,
|
|
]
|
|
|
|
@property
|
|
def id(self) -> str:
|
|
return "template"
|
|
|
|
@property
|
|
def gir_class(self) -> GirType:
|
|
if isinstance(self.class_name.gir_type, ExternType):
|
|
if gir := self.parent_type:
|
|
return TemplateType(self.class_name.gir_type.full_name, gir.gir_type)
|
|
return self.class_name.gir_type
|
|
|
|
@property
|
|
def parent_type(self) -> T.Optional[ClassName]:
|
|
if len(self.children[ClassName]) == 2:
|
|
return self.children[ClassName][1]
|
|
else:
|
|
return None
|
|
|
|
@validate()
|
|
def parent_only_if_extern(self):
|
|
if not isinstance(self.class_name.gir_type, ExternType):
|
|
if self.parent_type is not None:
|
|
raise CompileError(
|
|
"Parent type may only be specified if the template type is extern"
|
|
)
|
|
|
|
@validate("id")
|
|
def unique_in_parent(self):
|
|
self.validate_unique_in_parent(
|
|
f"Only one template may be defined per file, but this file contains {len(self.parent.children[Template])}",
|
|
)
|
|
|
|
|
|
@decompiler("template")
|
|
def decompile_template(ctx: DecompileCtx, gir, klass, parent=None):
|
|
def class_name(cname: str) -> str:
|
|
if gir := ctx.type_by_cname(cname):
|
|
return decompile.full_name(gir)
|
|
else:
|
|
return "$" + cname
|
|
|
|
ctx.print(f"template {class_name(klass)} : {class_name(parent)} {{")
|
|
|
|
ctx.template_class = klass
|
|
|
|
return ctx.type_by_cname(klass) or ctx.type_by_cname(parent)
|