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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/*
* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/licenses/publicdomain/
* Contributor: Robert Sayre
*/
//-----------------------------------------------------------------------------
var BUGNUMBER = 366941;
var summary = 'Destructuring enumerations, iterations';
var actual = '';
var expect = '';
//-----------------------------------------------------------------------------
test();
//-----------------------------------------------------------------------------
function test()
{
printBugNumber(BUGNUMBER);
printStatus (summary);
var list1 = [[1,2],[3,4],[5,6]];
var list2 = [[1,2,3],[4,5,6],[7,8,9]];
expect = '1,2;3,4;5,6;';
actual = '';
for (var [foo, bar] of list1) {
actual += foo + "," + bar + ";";
}
reportCompare(expect, actual, summary + ': 1');
expect = '1,2,3;4,5,6;7,8,9;';
actual = '';
for (var [foo, bar, baz] of list2) {
actual += foo + "," + bar + "," + baz + ";";
}
reportCompare(expect, actual, summary + ': 2');
function* gen(list) {
for (var test of list) {
yield test;
}
}
var iter1 = gen(list1);
expect = '1,2;3,4;5,6;';
actual = '';
for (var [foo, bar] of iter1) {
actual += foo + "," + bar + ";";
}
reportCompare(expect, actual, summary + ': 3');
// Before JS1.7's destructuring for…in was fixed to match JS1.8's,
// the expected result was a SyntaxError about the for…in loop's lhs.
var iter2 = gen(list2);
expect = '1,2,3;4,5,6;7,8,9;';
actual = '';
try
{
eval('for (var [foo, bar, baz] of iter2) {' +
'actual += foo + "," + bar + "," + baz + ";";' +
'}');
}
catch(ex)
{
actual = ex + '';
}
reportCompare(expect, actual, summary + ': 4');
}
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