michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /*
michael@0:  * Any copyright is dedicated to the Public Domain.
michael@0:  * http://creativecommons.org/licenses/publicdomain/
michael@0:  * Contributor: Robert Sayre
michael@0:  */
michael@0: 
michael@0: 
michael@0: //-----------------------------------------------------------------------------
michael@0: var BUGNUMBER = 366941;
michael@0: var summary = 'Destructuring enumerations, iterations';
michael@0: var actual = '';
michael@0: var expect = '';
michael@0: 
michael@0: 
michael@0: //-----------------------------------------------------------------------------
michael@0: test();
michael@0: //-----------------------------------------------------------------------------
michael@0: 
michael@0: function test()
michael@0: {
michael@0:   enterFunc ('test');
michael@0:   printBugNumber(BUGNUMBER);
michael@0:   printStatus (summary);
michael@0: 
michael@0:   var list1 = [[1,2],[3,4],[5,6]];
michael@0:   var list2 = [[1,2,3],[4,5,6],[7,8,9]];
michael@0: 
michael@0:   expect = '1,2;3,4;5,6;';
michael@0:   actual = '';
michael@0: 
michael@0:   for each (var [foo, bar] in list1) {
michael@0:     actual += foo + "," + bar + ";";
michael@0:   }
michael@0: 
michael@0:   reportCompare(expect, actual, summary + ': 1');
michael@0: 
michael@0:   expect = '1,2,3;4,5,6;7,8,9;';
michael@0:   actual = '';
michael@0:   for each (var [foo, bar, baz] in list2) {
michael@0:     actual += foo + "," + bar + "," + baz + ";";
michael@0:   }
michael@0: 
michael@0:   reportCompare(expect, actual, summary + ': 2');
michael@0: 
michael@0:   function gen(list) {
michael@0:     for each (var test in list) {
michael@0:       yield test;
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   var iter1 = gen(list1);
michael@0: 
michael@0:   expect = '1,2;3,4;5,6;';
michael@0:   actual = '';
michael@0: 
michael@0:   for (var [foo, bar] in iter1) {
michael@0:     actual += foo + "," + bar + ";";
michael@0:   }
michael@0: 
michael@0:   reportCompare(expect, actual, summary + ': 3');
michael@0: 
michael@0:   // syntax error in js17
michael@0:   var iter2 = gen(list2);
michael@0:   expect = /SyntaxError: (invalid for.in left-hand side|Left hand side of for..in loop must be an array of length 2 to accept key.value pair.)/;
michael@0:   actual = '';
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     eval('for (var [foo, bar, baz] in iter2) {' +
michael@0:          'actual += foo + "," + bar + "," + baz + ";";' + 
michael@0:          '}');
michael@0:     actual = 'No Error';
michael@0:   }
michael@0:   catch(ex)
michael@0:   {
michael@0:     actual = ex + '';
michael@0:   }
michael@0:  
michael@0:   reportMatch(expect, actual, summary + ': 4');
michael@0: 
michael@0:   exitFunc ('test');
michael@0: }