webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 93 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/builtins/ObjectConstructor.js b/Source/JavaScriptCore/builtins/ObjectConstructor.js
new file mode 100644
index 000000000..d855beb2a
--- /dev/null
+++ b/Source/JavaScriptCore/builtins/ObjectConstructor.js
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2016 Oleksandr Skachkov <gskachkov@gmail.com>.
+ * Copyright (C) 2015 Jordan Harband. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+@globalPrivate
+function enumerableOwnProperties(object, kind)
+{
+    "use strict";
+
+    const obj = @Object(object);
+    const ownKeys = @Reflect.@ownKeys(obj);
+    const properties = [];
+    for (let i = 0, keysLength = ownKeys.length; i < keysLength; ++i) {
+        let nextKey = ownKeys[i];
+        if (typeof nextKey === 'string') {
+            let descriptor = @Reflect.@getOwnPropertyDescriptor(obj, nextKey);
+            if (descriptor !== @undefined && descriptor.enumerable) {
+                if (kind === @iterationKindValue)
+                    properties.@push(obj[nextKey]);
+                else if (kind === @iterationKindKeyValue)
+                    properties.@push([nextKey, obj[nextKey]]);
+            }
+        }
+    }
+    
+    return properties;
+}
+
+function values(object)
+{
+    "use strict";
+    
+    if (object == null)
+        @throwTypeError("Object.values requires that input parameter not be null or undefined");
+
+    return @enumerableOwnProperties(object, @iterationKindValue);
+}
+
+function entries(object)
+{
+    "use strict";
+    
+    if (object == null)
+        @throwTypeError("Object.entries requires that input parameter not be null or undefined");
+    
+    return @enumerableOwnProperties(object, @iterationKindKeyValue);
+}
+
+function assign(target/*[*/, /*...*/sources/*] */)
+{
+    "use strict";
+
+    if (target == null)
+        @throwTypeError("Object.assign requires that input parameter not be null or undefined");
+
+    let objTarget = @Object(target);
+    for (let s = 1, argumentsLength = arguments.length; s < argumentsLength; ++s) {
+        let nextSource = arguments[s];
+        if (nextSource != null) {
+            let from = @Object(nextSource);
+            let keys = @Reflect.@ownKeys(from);
+            for (let i = 0, keysLength = keys.length; i < keysLength; ++i) {
+                let nextKey = keys[i];
+                let descriptor = @Reflect.@getOwnPropertyDescriptor(from, nextKey);
+                if (descriptor !== @undefined && descriptor.enumerable)
+                    objTarget[nextKey] = from[nextKey];
+            }
+        }
+    }
+    return objTarget;
+}