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decompiler: Support sub-templates

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Support GtkBuilderListItemFactory syntax by decompiling the nested XML,
rather than preserving it as a string literal.
This commit is contained in:
James Westman 2024-08-24 13:04:21 -05:00
parent 25d9826aea
commit 21d5ce86e9
6 changed files with 60 additions and 20 deletions
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40
blueprintcompiler/decompiler.py
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@ -51,9 +51,10 @@ class LineType(Enum):
class DecompileCtx:
def __init__(self) -> None:
def __init__(self, parent_gir: T.Optional[GirContext] = None) -> None:
self.sub_decompiler = parent_gir is not None
self._result: str = ""
self.gir = GirContext()
self.gir = parent_gir or GirContext()
self._blocks_need_end: T.List[str] = []
self._last_line_type: LineType = LineType.NONE
self._obj_type_stack: list[T.Optional[GirType]] = []
@ -63,15 +64,19 @@ class DecompileCtx:
@property
def result(self) -> str:
import_lines = sorted(
[
f"using {ns} {namespace.version};"
for ns, namespace in self.gir.namespaces.items()
if ns != "Gtk"
]
)
full_string = "\n".join(["using Gtk 4.0;", *import_lines]) + self._result
return formatter.format(full_string)
imports = ""
if not self.sub_decompiler:
import_lines = sorted(
[
f"using {ns} {namespace.version};"
for ns, namespace in self.gir.namespaces.items()
if ns != "Gtk"
]
)
imports += "\n".join(["using Gtk 4.0;", *import_lines])
return formatter.format(imports + self._result)
def type_by_cname(self, cname: str) -> T.Optional[GirType]:
if type := self.gir.get_type_by_cname(cname):
@ -131,6 +136,7 @@ class DecompileCtx:
for child in self.root_node.children:
if child.tag == "template":
return child["class"]
return None
def find_object(self, id: str) -> T.Optional[Element]:
@ -273,7 +279,7 @@ def decompile(data: str) -> str:
return ctx.result
def decompile_string(data):
def decompile_string(data: str) -> str:
ctx = DecompileCtx()
xml = parse_string(data)
@ -417,6 +423,16 @@ def decompile_property(
ctx.print(f"{name}: {translatable};")
elif gir is None or gir.properties.get(name) is None:
ctx.print(f"{name}: {escape_quote(cdata)};")
elif (
gir.assignable_to(ctx.gir.get_class("BuilderListItemFactory", "Gtk"))
and name == "bytes"
):
sub_ctx = DecompileCtx(ctx.gir)
xml = parse_string(cdata)
decompile_element(sub_ctx, None, xml)
ctx.print(sub_ctx.result)
else:
_, string = ctx.decompile_value(cdata, gir.properties.get(name).type)
ctx.print(f"{name}: {string};")