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Merge branch 'variant-literal' into 'main'

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Draft: Syntax for variants

See merge request jwestman/blueprint-compiler!224
This commit is contained in:
jgcodes2020 2024-12-21 20:02:36 +00:00
commit 1f75d819aa
5 changed files with 95 additions and 14 deletions
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6
blueprintcompiler/language/gobject_property.py
View file

@ -22,12 +22,12 @@ from .binding import Binding
from .common import *
from .contexts import ValueTypeCtx
from .gtkbuilder_template import Template
from .values import ArrayValue, ObjectValue, Value
from .values import ArrayValue, ObjectValue, Value, VariantValue
class Property(AstNode):
grammar = Statement(
UseIdent("name"), ":", AnyOf(Binding, ObjectValue, Value, ArrayValue)
UseIdent("name"), ":", AnyOf(Binding, VariantValue, ObjectValue, Value, ArrayValue)
)
@property
@ -35,7 +35,7 @@ class Property(AstNode):
return self.tokens["name"]
@property
def value(self) -> T.Union[Binding, ObjectValue, Value, ArrayValue]:
def value(self) -> T.Union[Binding, VariantValue, ObjectValue, Value, ArrayValue]:
return self.children[0]
@property

10
blueprintcompiler/language/gtk_menu.py
View file

@ -19,7 +19,7 @@
import typing as T
from blueprintcompiler.language.values import StringValue
from blueprintcompiler.language.values import StringValue, VariantValue
from .common import *
from .contexts import ValueTypeCtx
@ -98,8 +98,12 @@ class MenuAttribute(AstNode):
return self.tokens["name"]
@property
def value(self) -> StringValue:
def value(self) -> StringValue | VariantValue:
if len(self.children[StringValue]) > 0:
return self.children[StringValue][0]
elif len(self.children[VariantValue]) > 0:
return self.children[VariantValue][0]
raise CompilerBugError()
@property
def document_symbol(self) -> DocumentSymbol:
@ -133,7 +137,7 @@ menu_attribute = Group(
[
UseIdent("name"),
":",
Err(StringValue, "Expected string or translated string"),
Err(AnyOf(StringValue, VariantValue), "Expected string or translated string"),
Match(";").expected(),
],
)

38
blueprintcompiler/language/values.py
View file

@ -371,6 +371,44 @@ class IdentLiteral(AstNode):
else:
return None
class VariantValue(AstNode):
grammar = [
"variant",
"<",
UseQuoted("type"),
">",
"(",
UseQuoted("value"),
")"
]
@property
def var_type(self) -> str:
return self.tokens["type"]
@property
def var_value(self) -> str:
return self.tokens["value"]
@validate()
def validate_for_type(self) -> None:
expected_type = self.context[ValueTypeCtx].value_type
if expected_type is None:
pass
elif (
isinstance(expected_type, gir.IntType)
or isinstance(expected_type, gir.UIntType)
or isinstance(expected_type, gir.FloatType)
or isinstance(expected_type, gir.FloatType)
):
raise CompileError(f"Cannot convert variant to number")
elif isinstance(expected_type, gir.StringType):
raise CompileError("Cannot convert variant to string")
elif isinstance(expected_type, gir.Boxed) and expected_type.full_name == "GLib.Variant":
pass
else:
raise CompileError(f"Cannot convert variant into {expected_type.full_name}")
pass
class Literal(AstNode):
grammar = AnyOf(

23
blueprintcompiler/outputs/xml/__init__.py
View file

@ -1,5 +1,7 @@
import typing as T
from blueprintcompiler.language.values import VariantValue
from ...language import *
from .. import OutputFormat
from .xml_emitter import XmlEmitter
@ -83,6 +85,7 @@ class XmlOutput(OutputFormat):
if isinstance(child, Menu):
self._emit_menu(child, xml)
elif isinstance(child, MenuAttribute):
if isinstance(child.value, StringValue):
xml.start_tag(
"attribute",
name=child.name,
@ -90,6 +93,15 @@ class XmlOutput(OutputFormat):
)
xml.put_text(child.value.string)
xml.end_tag()
elif isinstance(child.value, VariantValue):
xml.start_tag(
"attribute",
name=child.name,
type=child.value.var_type,
)
xml.put_text(child.value.var_value)
xml.end_tag()
else:
raise CompilerBugError()
xml.end_tag()
@ -148,6 +160,11 @@ class XmlOutput(OutputFormat):
self._emit_value(values[-1], xml)
xml.end_tag()
elif isinstance(value, VariantValue):
xml.start_tag("property", **props, type=value.var_type)
xml.put_text(value.var_value)
xml.end_tag()
else:
raise CompilerBugError()
@ -205,6 +222,8 @@ class XmlOutput(OutputFormat):
xml.put_text(self._object_id(value, value.ident))
elif isinstance(value, TypeLiteral):
xml.put_text(value.type_name.glib_type_name)
elif isinstance(value, VariantValue):
xml.put_text(value.value)
else:
if isinstance(value.value, float) and value.value == int(value.value):
xml.put_text(int(value.value))
@ -284,6 +303,10 @@ class XmlOutput(OutputFormat):
xml.start_tag(tag, **attrs)
xml.put_text(value.child.value)
xml.end_tag()
elif isinstance(value.child, VariantValue):
xml.start_tag(tag, **attrs, type=value.child.var_type)
xml.put_text(value.child.var_value)
xml.end_tag()
else:
xml.start_tag(tag, **attrs)
self._emit_value(value, xml)

16
variant-test.blp Normal file
View file

@ -0,0 +1,16 @@
using Gtk 4.0;
menu root {
submenu {
name: "one";
item {
action: "app.foo_bar";
target: variant<"s">("\"one\"");
}
}
}
Button {
action-name: "app.shave_yak";
action-target: variant<"y">("8");
}