Make ts_xref_formatter apply to all kinds of xref (#81)

Before it specifically applied to external xrefs but I think it's more 
convenient to use it for all xrefs.

sphinx_js/renderers.py

@@ -31,8 +31,6 @@
     Type,
     TypeParam,
     TypeXRef,
-    TypeXRefExternal,
-    TypeXRefInternal,
 )
 from .jsdoc import Analyzer as JsAnalyzer
 from .parsers import PathVisitor
@@ -57,7 +55,7 @@ class JsRenderer:
 
     _renderer_type: Literal["function", "class", "attribute"]
     _template: str
-    _xref_formatter: Callable[[TypeXRefExternal], str]
+    _xref_formatter: Callable[[TypeXRef], str]
     _partial_path: list[str]
     _explicit_formal_params: str
     _content: list[str]
@@ -67,13 +65,13 @@ def _template_vars(self, name: str, obj: TopLevel) -> dict[str, Any]:
         raise NotImplementedError
 
     def _set_xref_formatter(
-        self, formatter: Callable[[Config, TypeXRefExternal], str] | None
+        self, formatter: Callable[[Config, TypeXRef], str] | None
     ) -> None:
         if formatter:
             self._xref_formatter = partial(formatter, self._app.config)
             return
 
-        def default_xref_formatter(xref: TypeXRefExternal) -> str:
+        def default_xref_formatter(xref: TypeXRef) -> str:
             return xref.name
 
         self._xref_formatter = default_xref_formatter
@@ -313,12 +311,7 @@ def strs() -> Iterator[str]:
         return "".join(res)
 
     def render_xref(self, s: TypeXRef, escape: bool = False) -> str:
-        if isinstance(s, TypeXRefInternal):
-            name = rst.escape(s.name)
-            result = f":js:class:`{name}`"
-        else:
-            assert isinstance(s, TypeXRefExternal)
-            result = self._xref_formatter(s)
+        result = self._xref_formatter(s)
         if escape:
             result = rst.escape(result)
         return result

tests/test_build_ts/source/docs/conf.py

@@ -8,3 +8,14 @@
 
 jsdoc_config_path = "../tsconfig.json"
 js_language = "typescript"
+from sphinx.util import rst
+
+from sphinx_js.ir import TypeXRefInternal
+
+
+def ts_xref_formatter(config, xref):
+    if isinstance(xref, TypeXRefInternal):
+        name = rst.escape(xref.name)
+        return f":js:class:`{name}`"
+    else:
+        return xref.name

tests/test_renderers.py

@@ -1,6 +1,7 @@
 from textwrap import dedent, indent
 
 import pytest
+from sphinx.util import rst
 
 from sphinx_js.ir import (
     DescriptionCode,
@@ -51,6 +52,14 @@ def test_render_description():
     )
 
 
+def ts_xref_formatter(config, xref):
+    if isinstance(xref, TypeXRefInternal):
+        name = rst.escape(xref.name)
+        return f":js:class:`{name}`"
+    else:
+        return xref.name
+
+
 @pytest.fixture()
 def function_renderer():
     class _config:
@@ -63,7 +72,7 @@ class _app:
     renderer._app = _app
     renderer._explicit_formal_params = None
     renderer._content = []
-    renderer._set_xref_formatter(None)
+    renderer._set_xref_formatter(ts_xref_formatter)
     return renderer