helix: Add match operator (#34060)

This is an implementation of matching like "m i (", as well as "] (" and
"[ (" in `helix_mode` with a few supported objects and a basis for more.

Release Notes:

- Added helix operators for selecting text objects

---------

Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>

crates/vim/src/vim.rs

@@ -86,6 +86,22 @@ struct PushFindBackward {
     multiline: bool,
 }
 
+#[derive(Clone, Deserialize, JsonSchema, PartialEq, Action)]
+#[action(namespace = vim)]
+#[serde(deny_unknown_fields)]
+/// Selects the next object.
+struct PushHelixNext {
+    around: bool,
+}
+
+#[derive(Clone, Deserialize, JsonSchema, PartialEq, Action)]
+#[action(namespace = vim)]
+#[serde(deny_unknown_fields)]
+/// Selects the previous object.
+struct PushHelixPrevious {
+    around: bool,
+}
+
 #[derive(Clone, Deserialize, JsonSchema, PartialEq, Action)]
 #[action(namespace = vim)]
 #[serde(deny_unknown_fields)]
@@ -224,6 +240,8 @@ actions!(
         PushReplaceWithRegister,
         /// Toggles comments.
         PushToggleComments,
+        /// Starts a match operation.
+        PushHelixMatch,
     ]
 );
 
@@ -761,6 +779,27 @@ impl Vim {
             Vim::action(editor, cx, |vim, _: &Enter, window, cx| {
                 vim.input_ignored("\n".into(), window, cx)
             });
+            Vim::action(editor, cx, |vim, _: &PushHelixMatch, window, cx| {
+                vim.push_operator(Operator::HelixMatch, window, cx)
+            });
+            Vim::action(editor, cx, |vim, action: &PushHelixNext, window, cx| {
+                vim.push_operator(
+                    Operator::HelixNext {
+                        around: action.around,
+                    },
+                    window,
+                    cx,
+                );
+            });
+            Vim::action(editor, cx, |vim, action: &PushHelixPrevious, window, cx| {
+                vim.push_operator(
+                    Operator::HelixPrevious {
+                        around: action.around,
+                    },
+                    window,
+                    cx,
+                );
+            });
 
             normal::register(editor, cx);
             insert::register(editor, cx);