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Change template syntax

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Templates now use a TypeName instead of an identifier, which makes it
clearer that it's an extern symbol (or that it's a Gtk.ListItem).
This commit is contained in:
James Westman 2023-05-09 19:42:33 -05:00
parent aebf8be278
commit 04509e4b2e
31 changed files with 175 additions and 55 deletions
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56
blueprintcompiler/language/gtkbuilder_template.py
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@ -19,15 +19,18 @@
import typing as T
from blueprintcompiler.language.common import GirType
from .gobject_object import Object, ObjectContent
from .common import *
from .types import ClassName
from ..gir import TemplateType
from .types import ClassName, TemplateClassName
class Template(Object):
grammar = [
"template",
UseIdent("id").expected("template class name"),
UseExact("id", "template"),
to_parse_node(TemplateClassName).expected("template type"),
Optional(
[
Match(":"),
@ -39,21 +42,29 @@ class Template(Object):
@property
def id(self) -> str:
return self.tokens["id"]
return "template"
@property
def class_name(self) -> T.Optional[ClassName]:
if len(self.children[ClassName]):
return self.children[ClassName][0]
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
@property
def gir_class(self):
if self.class_name is None:
return gir.TemplateType(self.id, None)
else:
return gir.TemplateType(self.id, self.class_name.gir_type)
@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):
@ -63,10 +74,15 @@ class Template(Object):
@decompiler("template")
def decompile_template(ctx: DecompileCtx, gir, klass, parent="Widget"):
gir_class = ctx.type_by_cname(parent)
if gir_class is None:
ctx.print(f"template {klass} : .{parent} {{")
else:
ctx.print(f"template {klass} : {decompile.full_name(gir_class)} {{")
return gir_class
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)