Fix for bug #1546 where a deep copy was attempted of DOM elements (which isn't needed).

diff --git a/src/core.js b/src/core.js
index d396ee9..3aea325 100644 (file)
--- a/src/core.js
+++ b/src/core.js
@@ -534,7 +534,7 @@ jQuery.extend = jQuery.fn.extend = function() {
                                        continue;\r
 \r
                                // Recurse if we're merging object values\r
-                               if ( deep && typeof options[ name ] == "object" && target[ name ] )\r
+                               if ( deep && typeof options[ name ] == "object" && target[ name ] && !options[ name ].nodeType )\r
                                        jQuery.extend( target[ name ], options[ name ] );\r
 \r
                                // Don't bring in undefined values\r

diff --git a/test/unit/core.js b/test/unit/core.js
index 7280ab9..f5fc895 100644 (file)
--- a/test/unit/core.js
+++ b/test/unit/core.js
@@ -778,7 +778,7 @@ test("is(String)", function() {
 });
 
 test("$.extend(Object, Object)", function() {
-       expect(10);
+       expect(11);
 
        var settings = { xnumber1: 5, xnumber2: 7, xstring1: "peter", xstring2: "pan" },
                options =     { xnumber2: 1, xstring2: "x", xxx: "newstring" },
@@ -786,9 +786,9 @@ test("$.extend(Object, Object)", function() {
                merged = { xnumber1: 5, xnumber2: 1, xstring1: "peter", xstring2: "x", xxx: "newstring" },
                deep1 = { foo: { bar: true } },
                deep1copy = { foo: { bar: true } },
-               deep2 = { foo: { baz: true } },
-               deep2copy = { foo: { baz: true } },
-               deepmerged = { foo: { bar: true, baz: true } };
+               deep2 = { foo: { baz: true }, foo2: document },
+               deep2copy = { foo: { baz: true }, foo2: document },
+               deepmerged = { foo: { bar: true, baz: true }, foo2: document };
 
        jQuery.extend(settings, options);
        isObj( settings, merged, "Check if extended: settings must be extended" );
@@ -801,6 +801,7 @@ test("$.extend(Object, Object)", function() {
        jQuery.extend(true, deep1, deep2);
        isObj( deep1.foo, deepmerged.foo, "Check if foo: settings must be extended" );
        isObj( deep2.foo, deep2copy.foo, "Check if not deep2: options must not be modified" );
+       equals( deep1.foo2, document, "Make sure that a deep clone was not attempted on the document" );
 
        var defaults = { xnumber1: 5, xnumber2: 7, xstring1: "peter", xstring2: "pan" },
                defaultsCopy = { xnumber1: 5, xnumber2: 7, xstring1: "peter", xstring2: "pan" },