Implement Array.prototype.splice().

JerryScript-DCO-1.0-Signed-off-by: Zsolt Borbély zsborbely.u-szeged@partner.samsung.com

tests/jerry/array_prototype_splice.js

@@ -0,0 +1,113 @@
+// Copyright 2015 Samsung Electronics Co., Ltd.
+// Copyright 2015 University of Szeged.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+function setDefaultValues()
+{
+	return [54, undefined, -127, "sunshine"];
+}
+
+var array = setDefaultValues();
+var array1 = array.splice();
+
+assert (array.length == 4);
+assert (array[0] == 54);
+assert (array[1] == undefined);
+assert (array[2] == -127);
+assert (array[3] == "sunshine");
+assert (array1.length == 0);
+
+// --------------------------------------------------------
+array = setDefaultValues();
+var array2 = array.splice(2);
+
+assert (array.length == 2);
+assert (array[0] == 54);
+assert (array[1] == undefined);
+assert (array2.length == 2);
+assert (array2[0] == -127);
+assert (array2[1] == "sunshine");
+
+// --------------------------------------------------------
+array = setDefaultValues();
+var array3 = array.splice(2, 1);
+
+assert (array.length == 3);
+assert (array[0] == 54);
+assert (array[1] == undefined);
+assert (array[2] == "sunshine");
+assert (array3.length == 1);
+assert (array3[0] == -127);
+
+// --------------------------------------------------------
+array = setDefaultValues();
+var array4 = array.splice(0, 3, 6720, "Szeged");
+
+assert (array.length == 3);
+assert (array[0] == 6720);
+assert (array[1] == "Szeged");
+assert (array[2] == "sunshine");
+assert (array4.length == 3);
+assert (array4[0] == 54);
+assert (array4[1] == undefined);
+assert (array4[2] == -127);
+
+// --------------------------------------------------------
+array = setDefaultValues();
+var array5 = array.splice(-2, -2, 6720, "Szeged");
+
+assert (array.length == 6);
+assert (array[0] == 54);
+assert (array[1] == undefined);
+assert (array[2] == 6720);
+assert (array[3] == "Szeged");
+assert (array[4] == -127);
+assert (array[5] == "sunshine");
+assert (array5.length == 0);
+
+// --------------------------------------------------------
+array = setDefaultValues();
+var array6 = array.splice(undefined, undefined, undefined);
+
+assert (array.length == 5);
+assert (array[0] == undefined);
+assert (array[1] == 54);
+assert (array[2] == undefined);
+assert (array[3] == -127);
+assert (array[4] == "sunshine");
+assert (array6.length == 0);
+
+// Checking behavior when unable to get length
+var obj = {splice : Array.prototype.splice};
+Object.defineProperty(obj, 'length', { 'get' : function () { throw new ReferenceError ("foo"); } });
+
+try {
+	obj.splice(1, 2, "item1", "item2");
+	assert (false);
+} catch (e) {
+	assert (e.message === "foo");
+	assert (e instanceof ReferenceError);
+}
+
+// Checking behavior when unable to get element
+var obj = {length : 1, splice : Array.prototype.splice};
+Object.defineProperty(obj, '0', { 'get' : function () { throw new ReferenceError ("foo"); } });
+
+try {
+	obj.splice(0, 1, "item1", "item2");
+	assert (false);
+} catch (e) {
+	assert (e.message === "foo");
+	assert (e instanceof ReferenceError);
+}