Apply suggestions:

 * Forbid generics without a path (so "<p>" is forbidden).
 * Change `handleSingleArg` so that it takes `results_others`, `results_in_args` and `results_returned` as arguments instead of using the "global" variables.
 * Change `createQueryElement` so that it returns the newly created element instead of taking `elems` as argument.
 * Improve documentation

4 files changed, 47 insertions, 30 deletions

diff --git a/src/test/rustdoc-js-std/parser-errors.js b/src/test/rustdoc-js-std/parser-errors.js
index d4cd9facf17..080f82b41ec 100644
--- a/src/test/rustdoc-js-std/parser-errors.js
+++ b/src/test/rustdoc-js-std/parser-errors.js
@@ -1,4 +1,6 @@
 const QUERY = [
+    '<P>',
+    '-> <P>',
     '<"P">',
     '"P" "P"',
     'P "P"',
@@ -16,12 +18,32 @@ const QUERY = [
     "a b:",
     "a (b:",
     "{:",
+    "a-bb",
+    "a>bb",
 ];
 
 const PARSED = [
     {
         elems: [],
         foundElems: 0,
+        original: "<P>",
+        returned: [],
+        typeFilter: -1,
+        userQuery: "<p>",
+        error: "Found generics without a path",
+    },
+    {
+        elems: [],
+        foundElems: 0,
+        original: "-> <P>",
+        returned: [],
+        typeFilter: -1,
+        userQuery: "-> <p>",
+        error: "Found generics without a path",
+    },
+    {
+        elems: [],
+        foundElems: 0,
         original: "<\"P\">",
         returned: [],
         typeFilter: -1,
@@ -172,4 +194,22 @@ const PARSED = [
         userQuery: "{:",
         error: "Unknown type filter `{`",
     },
+    {
+        elems: [],
+        foundElems: 0,
+        original: "a-bb",
+        returned: [],
+        typeFilter: -1,
+        userQuery: "a-bb",
+        error: "Unexpected `-` (did you mean `->`?)",
+    },
+    {
+        elems: [],
+        foundElems: 0,
+        original: "a>bb",
+        returned: [],
+        typeFilter: -1,
+        userQuery: "a>bb",
+        error: "Unexpected `>` (did you mean `->`?)",
+    },
 ];
diff --git a/src/test/rustdoc-js-std/parser-generics.js b/src/test/rustdoc-js-std/parser-generics.js
index cf8d99ef22a..cc92f2333d2 100644
--- a/src/test/rustdoc-js-std/parser-generics.js
+++ b/src/test/rustdoc-js-std/parser-generics.js
@@ -1,30 +1,7 @@
-const QUERY = ['<P>', 'A<B<C<D>,  E>', 'p<> u8'];
+const QUERY = ['A<B<C<D>,  E>', 'p<> u8'];
 
 const PARSED = [
     {
-        elems: [{
-            name: "",
-            fullPath: [""],
-            pathWithoutLast: [],
-            pathLast: "",
-            generics: [
-                {
-                    name: "p",
-                    fullPath: ["p"],
-                    pathWithoutLast: [],
-                    pathLast: "p",
-                    generics: [],
-                },
-            ],
-        }],
-        foundElems: 1,
-        original: "<P>",
-        returned: [],
-        typeFilter: -1,
-        userQuery: "<p>",
-        error: null,
-    },
-    {
         elems: [],
         foundElems: 0,
         original: 'A<B<C<D>,  E>',
diff --git a/src/test/rustdoc-js-std/parser-returned.js b/src/test/rustdoc-js-std/parser-returned.js
index db64b03c0b3..8910275c91e 100644
--- a/src/test/rustdoc-js-std/parser-returned.js
+++ b/src/test/rustdoc-js-std/parser-returned.js
@@ -1,15 +1,15 @@
-const QUERY = ['-> <P>', '-> P'];
+const QUERY = ['-> F<P>', '-> P'];
 
 const PARSED = [
     {
         elems: [],
         foundElems: 1,
-        original: "-> <P>",
+        original: "-> F<P>",
         returned: [{
-            name: "",
-            fullPath: [""],
+            name: "f",
+            fullPath: ["f"],
             pathWithoutLast: [],
-            pathLast: "",
+            pathLast: "f",
             generics: [
                 {
                     name: "p",
@@ -21,7 +21,7 @@ const PARSED = [
             ],
         }],
         typeFilter: -1,
-        userQuery: "-> <p>",
+        userQuery: "-> f<p>",
         error: null,
     },
     {
diff --git a/src/test/rustdoc-js-std/parser-invalid.js b/src/test/rustdoc-js-std/parser-weird-queries.js
index 87ebe21c49b..87ebe21c49b 100644
--- a/src/test/rustdoc-js-std/parser-invalid.js
+++ b/src/test/rustdoc-js-std/parser-weird-queries.js