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language: Use new extern syntax in signal handlers

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James Westman 2022-12-25 16:22:33 -06:00
parent 0b402db4d5
commit 122b049ce9
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8 changed files with 21 additions and 10 deletions
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13
blueprintcompiler/language/gobject_signal.py
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@ -33,6 +33,7 @@ class Signal(AstNode):
]
),
"=>",
Optional(["$", UseLiteral("extern", True)]),
UseIdent("handler").expected("the name of a function to handle the signal"),
Match("(").expected("argument list"),
Optional(UseIdent("object")).expected("object identifier"),
@ -78,6 +79,14 @@ class Signal(AstNode):
def gir_class(self):
return self.parent.parent.gir_class
@validate("handler")
def old_extern(self):
if not self.tokens["extern"]:
raise UpgradeWarning(
"Use the '$' extern syntax introduced in blueprint 0.8.0",
actions=[CodeAction("Use '$' syntax", "$" + self.tokens["handler"])],
)
@validate("name")
def signal_exists(self):
if self.gir_class is None or isinstance(self.gir_class, UncheckedType):
@ -116,7 +125,7 @@ def decompile_signal(ctx, gir, name, handler, swapped="false", object=None):
object_name = object or ""
name = name.replace("_", "-")
if decompile.truthy(swapped):
ctx.print(f"{name} => {handler}({object_name}) swapped;")
ctx.print(f"{name} => ${handler}({object_name}) swapped;")
else:
ctx.print(f"{name} => {handler}({object_name});")
ctx.print(f"{name} => ${handler}({object_name});")
return gir