refactor(visitor): add relative scope support to type resolution

Author: wu-vincent

src/dwarf2cpp/visitor.py

@@ -39,6 +39,7 @@
 
 
 def scoped_tags(tag: str) -> bool:
+    """Return True if the DIE is a C++ scope component"""
     return tag in {
         "DW_TAG_structure_type",
         "DW_TAG_class_type",
@@ -50,23 +51,33 @@ def scoped_tags(tag: str) -> bool:
 
 
 @functools.cache
-def get_qualified_type(die: DWARFDie, split=False) -> str | tuple[str, str]:
+def get_qualified_type(die: DWARFDie, relative: DWARFDie | None = None, split=False) -> str | tuple[str, str]:
     printer = DWARFTypePrinter()
     if scoped_tags(die.tag):
         printer.append_scopes(die.parent)
 
-    if not split:
-        printer.append_unqualified_name(die)
-        return str(printer).strip()
+    def relative_scope(ty: str, relative: DWARFDie | None = None) -> str:
+        if not relative or relative.tag in {"DW_TAG_compile_unit", "DW_TAG_type_unit", "DW_TAG_skeleton_unit"}:
+            return ty
 
-    inner = printer.append_unqualified_name_before(die)
-    before = str(printer).strip()
+        output = ty.replace(get_qualified_type(relative) + "::", "")
+        if output != ty:
+            return output
 
-    printer = DWARFTypePrinter()
-    printer.append_unqualified_name_after(die, inner)
-    after = str(printer).strip()
+        return relative_scope(ty, relative.parent)
 
-    return before, after
+    if not split:
+        printer.append_unqualified_name(die)
+        ty = str(printer).strip()
+        return relative_scope(ty, relative)
+    else:
+        inner = printer.append_unqualified_name_before(die)
+        before = str(printer).strip()
+
+        printer = DWARFTypePrinter()
+        printer.append_unqualified_name_after(die, inner)
+        after = str(printer).strip()
+        return relative_scope(before, relative), after
 
 
 def float_to_str(value: float) -> str: