Move the way that we render extends bound on type parameter (#154)

It didn't work correctly before because the description list label does not
render rst.

sphinx_js/renderers.py

@@ -467,10 +467,11 @@ def _return_formatter(self, return_: Return) -> tuple[list[str], str]:
 
     def _type_param_formatter(self, tparam: TypeParam) -> tuple[list[str], str] | None:
         v = tparam.name
+        descr = render_description(tparam.description)
         if tparam.extends:
-            v += " extends " + self.render_type(tparam.extends)
+            descr += " (extends " + self.render_type(tparam.extends) + ")"
         heads = ["typeparam", v]
-        return heads, render_description(tparam.description)
+        return heads, descr
 
     def _param_formatter(self, param: Param) -> tuple[list[str], str] | None:
         """Derive heads and tail from ``@param`` blocks."""

tests/test_build_ts/source/module.ts

@@ -25,8 +25,11 @@ export class A {
   }
 }
 
-export class Z {
-  x: number;
+/**
+ * @typeParam T Description of T
+ */
+export class Z<T extends A> {
+  x: T;
   constructor(a: number, b: number) {}
 
   z() {}

tests/test_build_ts/test_build_ts.py

@@ -1,6 +1,6 @@
 from textwrap import dedent
 
-from bs4 import BeautifulSoup
+from bs4 import BeautifulSoup, Tag
 from conftest import TYPEDOC_VERSION
 
 from tests.testing import SphinxBuildTestCase
@@ -303,14 +303,17 @@ class module.Z(a, b)
 
                    *exported from* "module"
 
+                   Type parameters:
+                      **T** -- Description of T (extends "A()")
+
                    Arguments:
                       * **a** (number)
 
                       * **b** (number)
 
                    Z.x
 
-                      type: number
+                      type: T
 
                    Z.z()
 
@@ -342,6 +345,21 @@ def test_implements_links(self):
             "autoclass_class_with_interface_and_supers"
         )
 
+    def test_extends_type_param_links(self):
+        """Make sure implemented interfaces link to their definitions."""
+        soup = BeautifulSoup(self._file_contents("automodule"), "html.parser")
+        z = soup.find(id="module.Z")
+        assert z
+        assert z.parent
+        t = z.parent.find_all(class_="sphinx_js-type")
+        s: Tag = t[0]
+        href: Tag = list(s.children)[0]
+        assert href.name == "a"
+        assert href.get_text() == "A()"
+        assert href.attrs["class"] == ["reference", "internal"]
+        assert href.attrs["title"] == "module.A"
+        assert href.attrs["href"] == "#module.A"
+
     def test_xrefs(self):
         soup = BeautifulSoup(self._file_contents("xrefs"), "html.parser")
 

tests/test_typedoc_analysis/test_typedoc_analysis.py

@@ -501,7 +501,8 @@ def test_constrained_by_key(self):
         rst = rst.replace("\\", "").replace("  ", " ")
         assert ":typeparam T: The type of the object" in rst
         assert (
-            ":typeparam K extends string | number | symbol: The type of the key" in rst
+            ":typeparam K: The type of the key (extends string | number | symbol)"
+            in rst
         )
 
     def test_class_constrained(self):
@@ -522,7 +523,7 @@ def test_class_constrained(self):
         a._options = {}
         rst = a.rst([obj.name], obj)
         rst = rst.replace("\\ ", "").replace("\\", "").replace("  ", " ")
-        assert ":typeparam S extends number[]: The type we contain" in rst
+        assert ":typeparam S: The type we contain (extends number[])" in rst
 
     def test_constrained_by_constructor(self):
         """Make sure ``new ()`` expressions and, more generally, per-property