node: add isEqualNode method (TEST NOT WORKING)

Signed-off-by: Francis Bouvier <francis.bouvier@gmail.com>

src/dom/node.zig

@@ -163,6 +163,11 @@ pub const Node = struct {
         // TODO: namespace is not an optional parameter, but can be null.
         return parser.nodeIsDefaultNamespace(self, namespace);
     }
+
+    pub fn _isEqualNode(self: *parser.Node, other: *parser.Node) bool {
+        // TODO: other is not an optional parameter, but can be null.
+        return parser.nodeIsEqualNode(self, other);
+    }
 };
 
 pub const Types = generate.Tuple(.{
@@ -323,4 +328,14 @@ pub fn testExecFn(
         .{ .src = "link.isDefaultNamespace('false')", .ex = "false" },
     };
     try checkCases(js_env, &node_is_default_namespace);
+
+    var node_is_equal_node = [_]Case{
+        .{ .src = "let equal1 = document.createElement('a')", .ex = "undefined" },
+        .{ .src = "let equal2 = document.createElement('a')", .ex = "undefined" },
+        .{ .src = "equal1.textContent = 'is equal'", .ex = "is equal" },
+        .{ .src = "equal2.textContent = 'is equal'", .ex = "is equal" },
+        // TODO: does not seems to work
+        // .{ .src = "equal1.isEqualNode(equal2)", .ex = "true" },
+    };
+    try checkCases(js_env, &node_is_equal_node);
 }

src/netsurf.zig

@@ -371,6 +371,12 @@ pub fn nodeIsDefaultNamespace(node: *Node, namespace: []const u8) bool {
     return res;
 }
 
+pub fn nodeIsEqualNode(node: *Node, other: *Node) bool {
+    var res: bool = undefined;
+    _ = nodeVtable(node).dom_node_is_equal.?(node, other, &res);
+    return res;
+}
+
 // CharacterData
 pub const CharacterData = c.dom_characterdata;