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Add lookup expressions

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James Westman 2022-01-29 21:21:04 -06:00
parent c094743e84
commit 4fefa0bd73
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GPG key ID: CE2DBA0ADB654EA6
8 changed files with 177 additions and 5 deletions
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23
blueprintcompiler/language/gobject_property.py
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@ -18,6 +18,7 @@
# SPDX-License-Identifier: LGPL-3.0-or-later
from .expression import Expr
from .gobject_object import Object
from .gtkbuilder_template import Template
from .values import Value, TranslatedStringValue
@ -26,19 +27,27 @@ from .common import *
class Property(AstNode):
grammar = AnyOf(
Statement(
[
UseIdent("name"),
":",
Keyword("bind"),
UseIdent("bind_source").expected("the ID of a source object to bind from"),
UseIdent("bind_source"),
".",
UseIdent("bind_property").expected("a property name to bind from"),
UseIdent("bind_property"),
ZeroOrMore(AnyOf(
["no-sync-create", UseLiteral("no_sync_create", True)],
["inverted", UseLiteral("inverted", True)],
["bidirectional", UseLiteral("bidirectional", True)],
Match("sync-create").warn("sync-create is deprecated in favor of no-sync-create"),
)),
";",
],
Statement(
UseIdent("name"),
UseLiteral("binding", True),
":",
"bind",
Expr,
),
Statement(
UseIdent("name"),
@ -154,7 +163,13 @@ class Property(AstNode):
self.children[Object][0].emit_xml(xml)
xml.end_tag()
elif value is None:
xml.put_self_closing("property", **props)
if self.tokens["binding"]:
xml.start_tag("binding", **props)
for x in self.children:
x.emit_xml(xml)
xml.end_tag()
else:
xml.put_self_closing("property", **props);
else:
xml.start_tag("property", **props)
value.emit_xml(xml)