interpreter: use typed_kwargs for build_target.extra_files

mesonbuild/interpreter/interpreter.py

@@ -3322,9 +3322,7 @@ class Interpreter(InterpreterBase, HoldableObject):
         sources = self.source_strings_to_files(sources)
         objs = extract_as_list(kwargs, 'objects')
         kwargs['dependencies'] = extract_as_list(kwargs, 'dependencies')
-        if 'extra_files' in kwargs:
-            ef = extract_as_list(kwargs, 'extra_files')
-            kwargs['extra_files'] = self.source_strings_to_files(ef)
+        kwargs['extra_files'] = self.source_strings_to_files(kwargs['extra_files'])
         self.check_sources_exist(os.path.join(self.source_root, self.subdir), sources)
         if targetclass not in {build.Executable, build.SharedLibrary, build.SharedModule, build.StaticLibrary, build.Jar}:
             mlog.debug('Unknown target type:', str(targetclass))

mesonbuild/interpreter/kwargs.py

@@ -326,6 +326,7 @@ class _BaseBuildTarget(TypedDict):
     """
 
     build_by_default: bool
+    extra_files: T.List[FileOrString]
     install: bool
     install_mode: FileMode
     native: MachineChoice

mesonbuild/interpreter/type_checking.py

@@ -553,6 +553,7 @@ _JAVA_LANG_KW: KwargInfo[T.List[str]] = _BASE_LANG_KW.evolve(
 _ALL_TARGET_KWS: T.List[KwargInfo] = [
     OVERRIDE_OPTIONS_KW,
     KwargInfo('build_by_default', bool, default=True, since='0.38.0'),
+    KwargInfo('extra_files', ContainerTypeInfo(list, (str, File)), default=[], listify=True),
     INSTALL_KW,
     INSTALL_MODE_KW,
     NATIVE_KW,