mirror of
https://gitlab.gnome.org/jwestman/blueprint-compiler.git
synced 2025-05-04 15:59:08 -04:00
c1a82a034b
Add more tags to the list of things the decompiler can handle. This required some changes to track the containing object class in the DecompileCtx, since some objects use the same tag names. The improved support means we can test the decompiler on most of the test suite. Any new test samples will by default be tested to ensure the decompiler produces the original blueprint file. Also, updated the decompiler to always use double quotes.
115 lines
3.6 KiB
Python
115 lines
3.6 KiB
Python
# binding.py
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#
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# Copyright 2023 James Westman <james@jwestman.net>
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#
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# This file is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as
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# published by the Free Software Foundation; either version 3 of the
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# License, or (at your option) any later version.
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#
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# This file is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# SPDX-License-Identifier: LGPL-3.0-or-later
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from dataclasses import dataclass
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from .common import *
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from .expression import Expression, LiteralExpr, LookupOp
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class BindingFlag(AstNode):
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grammar = [
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AnyOf(
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UseExact("flag", "inverted"),
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UseExact("flag", "bidirectional"),
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UseExact("flag", "no-sync-create"),
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UseExact("flag", "sync-create"),
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)
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]
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@property
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def flag(self) -> str:
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return self.tokens["flag"]
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@validate()
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def sync_create(self):
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if self.flag == "sync-create":
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raise UpgradeWarning(
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"'sync-create' is now the default. Use 'no-sync-create' if this is not wanted.",
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actions=[CodeAction("remove 'sync-create'", "")],
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)
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@validate()
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def unique(self):
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self.validate_unique_in_parent(
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f"Duplicate flag '{self.flag}'", lambda x: x.flag == self.flag
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)
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@validate()
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def flags_only_if_simple(self):
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if self.parent.simple_binding is None:
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raise CompileError(
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"Only bindings with a single lookup can have flags",
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)
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class Binding(AstNode):
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grammar = [
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AnyOf(Keyword("bind"), UseExact("bind", "bind-property")),
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Expression,
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ZeroOrMore(BindingFlag),
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]
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@property
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def expression(self) -> Expression:
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return self.children[Expression][0]
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@property
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def flags(self) -> T.List[BindingFlag]:
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return self.children[BindingFlag]
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@property
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def simple_binding(self) -> T.Optional["SimpleBinding"]:
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if isinstance(self.expression.last, LookupOp):
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if isinstance(self.expression.last.lhs, LiteralExpr):
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from .values import IdentLiteral
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if isinstance(self.expression.last.lhs.literal.value, IdentLiteral):
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flags = [x.flag for x in self.flags]
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return SimpleBinding(
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self.expression.last.lhs.literal.value.ident,
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self.expression.last.property_name,
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no_sync_create="no-sync-create" in flags,
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bidirectional="bidirectional" in flags,
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inverted="inverted" in flags,
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)
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return None
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@validate("bind")
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def bind_property(self):
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if self.tokens["bind"] == "bind-property":
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raise UpgradeWarning(
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"'bind-property' is no longer needed. Use 'bind' instead. (blueprint 0.8.2)",
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actions=[CodeAction("use 'bind'", "bind")],
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)
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@dataclass
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class SimpleBinding:
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source: str
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property_name: str
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no_sync_create: bool = False
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bidirectional: bool = False
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inverted: bool = False
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@decompiler("binding")
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def decompile_binding(ctx: DecompileCtx, gir: gir.GirContext, name: str):
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ctx.end_block_with(";")
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ctx.print(f"{name}: bind ")
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