HTMLDocument: implement all getter

src/dom/html_collection.zig

@@ -167,6 +167,18 @@ pub fn HTMLCollectionByName(
     };
 }
 
+pub fn HTMLCollectionAll(
+    root: ?*parser.Node,
+    include_root: bool,
+) !HTMLCollection {
+    return HTMLCollection{
+        .root = root,
+        .walker = Walker{ .walkerDepthFirst = .{} },
+        .matcher = Matcher{ .matchTrue = .{} },
+        .include_root = include_root,
+    };
+}
+
 pub fn HTMLCollectionChildren(
     root: ?*parser.Node,
     include_root: bool,

src/html/document.zig

@@ -138,6 +138,10 @@ pub const HTMLDocument = struct {
         return try collection.HTMLCollectionByAnchors(try rootNode(self), false);
     }
 
+    pub fn get_all(self: *parser.DocumentHTML) !collection.HTMLCollection {
+        return try collection.HTMLCollectionAll(try rootNode(self), true);
+    }
+
     pub fn get_currentScript(_: *parser.DocumentHTML) !?*parser.Element {
         return null;
     }
@@ -219,6 +223,7 @@ pub fn testExecFn(
         .{ .src = "document.links.length", .ex = "1" },
         .{ .src = "document.applets.length", .ex = "0" },
         .{ .src = "document.anchors.length", .ex = "0" },
+        .{ .src = "document.all.length", .ex = "8" },
         .{ .src = "document.currentScript", .ex = "null" },
     };
     try checkCases(js_env, &getters);