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+/* The contents of this file are subject to the Netscape Public
+ * License Version 1.1 (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.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is Mozilla Communicator client code, released March
+ * 31, 1998.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation. Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ */
+/**
+ File Name: 15.4.4.3-1.js
+ ECMA Section: 15.4.4.3-1 Array.prototype.reverse()
+ Description:
+
+ The elements of the array are rearranged so as to reverse their order.
+ This object is returned as the result of the call.
+
+ 1. Call the [[Get]] method of this object with argument "length".
+ 2. Call ToUint32(Result(1)).
+ 3. Compute floor(Result(2)/2).
+ 4. Let k be 0.
+ 5. If k equals Result(3), return this object.
+ 6. Compute Result(2)k1.
+ 7. Call ToString(k).
+ 8. ToString(Result(6)).
+ 9. Call the [[Get]] method of this object with argument Result(7).
+ 10. Call the [[Get]] method of this object with argument Result(8).
+ 11. If this object has a property named by Result(8), go to step 12; but
+ if this object has no property named by Result(8), then go to either
+ step 12 or step 14, depending on the implementation.
+ 12. Call the [[Put]] method of this object with arguments Result(7) and
+ Result(10).
+ 13. Go to step 15.
+ 14. Call the [[Delete]] method on this object, providing Result(7) as the
+ name of the property to delete.
+ 15. If this object has a property named by Result(7), go to step 16; but if
+ this object has no property named by Result(7), then go to either step 16
+ or step 18, depending on the implementation.
+ 16. Call the [[Put]] method of this object with arguments Result(8) and
+ Result(9).
+ 17. Go to step 19.
+ 18. Call the [[Delete]] method on this object, providing Result(8) as the
+ name of the property to delete.
+ 19. Increase k by 1.
+ 20. Go to step 5.
+
+Note that the reverse function is intentionally generic; it does not require
+that its this value be an Array object. Therefore it can be transferred to other
+kinds of objects for use as a method. Whether the reverse function can be applied
+successfully to a host object is implementation dependent.
+
+ Note: Array.prototype.reverse allows some flexibility in implementation
+ regarding array indices that have not been populated. This test covers the
+ cases in which unpopulated indices are not deleted, since the JavaScript
+ implementation does not delete uninitialzed indices.
+
+ Author: christine@netscape.com
+ Date: 7 october 1997
+*/
+ var SECTION = "15.4.4.4-1";
+ var VERSION = "ECMA_1";
+ startTest();
+ var BUGNUMBER="123724";
+
+ writeHeaderToLog( SECTION + " Array.prototype.reverse()");
+
+ var testcases = new Array();
+ getTestCases();
+ test();
+
+function getTestCases() {
+ var ARR_PROTOTYPE = Array.prototype;
+
+ testcases[testcases.length] = new TestCase( SECTION, "Array.prototype.reverse.length", 0, Array.prototype.reverse.length );
+ testcases[testcases.length] = new TestCase( SECTION, "delete Array.prototype.reverse.length", false, delete Array.prototype.reverse.length );
+ testcases[testcases.length] = new TestCase( SECTION, "delete Array.prototype.reverse.length; Array.prototype.reverse.length", 0, eval("delete Array.prototype.reverse.length; Array.prototype.reverse.length") );
+
+ // length of array is 0
+ testcases[testcases.length] = new TestCase( SECTION,
+ "var A = new Array(); A.reverse(); A.length",
+ 0,
+ eval("var A = new Array(); A.reverse(); A.length") );
+
+ // length of array is 1
+ var A = new Array(true);
+ var R = Reverse(A);
+
+ testcases[testcases.length] = new TestCase( SECTION,
+ "var A = new Array(true); A.reverse(); A.length",
+ R.length,
+ eval("var A = new Array(true); A.reverse(); A.length") );
+ CheckItems( R, A );
+
+ // length of array is 2
+ var S = "var A = new Array( true,false )";
+ eval(S);
+ var R = Reverse(A);
+
+ testcases[testcases.length] = new TestCase(
+ SECTION,
+ S +"; A.reverse(); A.length",
+ R.length,
+ eval( S + "; A.reverse(); A.length") );
+
+ CheckItems( R, A );
+
+ // length of array is 3
+ var S = "var A = new Array( true,false,null )";
+ eval(S);
+ var R = Reverse(A);
+
+ testcases[testcases.length] = new TestCase( SECTION,
+ S +"; A.reverse(); A.length",
+ R.length,
+ eval( S + "; A.reverse(); A.length") );
+ CheckItems( R, A );
+
+ // length of array is 4
+ var S = "var A = new Array( true,false,null,void 0 )";
+ eval(S);
+ var R = Reverse(A);
+
+ testcases[testcases.length] = new TestCase( SECTION,
+ S +"; A.reverse(); A.length",
+ R.length,
+ eval( S + "; A.reverse(); A.length") );
+ CheckItems( R, A );
+
+
+ // some array indexes have not been set
+ var S = "var A = new Array(); A[8] = 'hi', A[3] = 'yo'";
+ eval(S);
+ var R = Reverse(A);
+
+ testcases[testcases.length] = new TestCase( SECTION,
+ S +"; A.reverse(); A.length",
+ R.length,
+ eval( S + "; A.reverse(); A.length") );
+ CheckItems( R, A );
+
+
+ var OBJECT_OBJECT = new Object();
+ var FUNCTION_OBJECT = new Function( 'return this' );
+ var BOOLEAN_OBJECT = new Boolean;
+ var DATE_OBJECT = new Date(0);
+ var STRING_OBJECT = new String('howdy');
+ var NUMBER_OBJECT = new Number(Math.PI);
+ var ARRAY_OBJECT= new Array(1000);
+
+ var args = "null, void 0, Math.pow(2,32), 1.234e-32, OBJECT_OBJECT, BOOLEAN_OBJECT, FUNCTION_OBJECT, DATE_OBJECT, STRING_OBJECT,"+
+ "ARRAY_OBJECT, NUMBER_OBJECT, Math, true, false, 123, '90210'";
+
+ var S = "var A = new Array("+args+")";
+ eval(S);
+ var R = Reverse(A);
+
+ testcases[testcases.length] = new TestCase( SECTION,
+ S +"; A.reverse(); A.length",
+ R.length,
+ eval( S + "; A.reverse(); A.length") );
+ CheckItems( R, A );
+
+ var limit = 1000;
+ var args = "";
+ for (var i = 0; i < limit; i++ ) {
+ args += i +"";
+ if ( i + 1 < limit ) {
+ args += ",";
+ }
+ }
+
+ var S = "var A = new Array("+args+")";
+ eval(S);
+ var R = Reverse(A);
+
+ testcases[testcases.length] = new TestCase( SECTION,
+ S +"; A.reverse(); A.length",
+ R.length,
+ eval( S + "; A.reverse(); A.length") );
+ CheckItems( R, A );
+
+ var S = "var MYOBJECT = new Object_1( \"void 0, 1, null, 2, \'\'\" )";
+ eval(S);
+ var R = Reverse( A );
+
+ testcases[testcases.length] = new TestCase( SECTION,
+ S +"; A.reverse(); A.length",
+ R.length,
+ eval( S + "; A.reverse(); A.length") );
+ CheckItems( R, A );
+
+ return ( testcases );
+}
+function CheckItems( R, A ) {
+ for ( var i = 0; i < R.length; i++ ) {
+ testcases[testcases.length] = new TestCase(
+ SECTION,
+ "A["+i+ "]",
+ R[i],
+ A[i] );
+ }
+}
+function test() {
+ for ( tc=0; tc < testcases.length; tc++ ) {
+ testcases[tc].passed = writeTestCaseResult(
+ testcases[tc].expect,
+ testcases[tc].actual,
+ testcases[tc].description +" = "+ testcases[tc].actual );
+ testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
+ }
+ stopTest();
+ return ( testcases );
+}
+function Object_1( value ) {
+ this.array = value.split(",");
+ this.length = this.array.length;
+ for ( var i = 0; i < this.length; i++ ) {
+ this[i] = eval(this.array[i]);
+ }
+ this.join = Array.prototype.reverse;
+ this.getClass = Object.prototype.toString;
+}
+function Reverse( array ) {
+ var r2 = array.length;
+ var k = 0;
+ var r3 = Math.floor( r2/2 );
+ if ( r3 == k ) {
+ return array;
+ }
+
+ for ( k = 0; k < r3; k++ ) {
+ var r6 = r2 - k - 1;
+// var r7 = String( k );
+ var r7 = k;
+ var r8 = String( r6 );
+
+ var r9 = array[r7];
+ var r10 = array[r8];
+
+ array[r7] = r10;
+ array[r8] = r9;
+ }
+
+ return array;
+}
+function Iterate( array ) {
+ for ( var i = 0; i < array.length; i++ ) {
+// print( i+": "+ array[String(i)] );
+ }
+}
+
+function Object_1( value ) {
+ this.array = value.split(",");
+ this.length = this.array.length;
+ for ( var i = 0; i < this.length; i++ ) {
+ this[i] = this.array[i];
+ }
+ this.reverse = Array.prototype.reverse;
+ this.getClass = Object.prototype.toString;
+}
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