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nodejs/test/parallel/test-v8-features.js
Ben Noordhuis 4e58211bb7 src: disable harmony object literals
Per the discussion in https://github.com/iojs/io.js/pull/272, upstream
V8 has disabled Harmony object literals for the time being.  Do the
same for feature parity.

PR-URL: https://github.com/iojs/io.js/pull/272
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Domenic Denicola <domenic@domenicdenicola.com>
2015-01-09 20:57:25 +01:00

32 lines
1.3 KiB
JavaScript

var common = require('../common');
var assert = require('assert');
var spawnSync = require('child_process').spawnSync;
var v8 = require('v8');
// --harmony_classes implies --harmony_scoping; ensure that scoping still works
// when classes are disabled.
assert.throws(function() { eval('"use strict"; class C {}'); }, SyntaxError);
eval('"use strict"; let x = 42'); // Should not throw.
eval('"use strict"; const y = 42'); // Should not throw.
v8.setFlagsFromString('--harmony_classes');
eval('"use strict"; class C {}'); // Should not throw.
eval('"use strict"; let x = 42'); // Should not throw.
eval('"use strict"; const y = 42'); // Should not throw.
// Verify that the --harmony_classes flag unlocks classes again.
var args = ['--harmony_classes', '--use_strict', '-p', 'class C {}'];
var cp = spawnSync(process.execPath, args);
assert.equal(cp.status, 0);
assert.equal(cp.stdout.toString('utf8').trim(), '[Function: C]');
// Now do the same for --harmony_object_literals.
assert.throws(function() { eval('({ f() {} })'); }, SyntaxError);
v8.setFlagsFromString('--harmony_object_literals');
eval('({ f() {} })');
var args = ['--harmony_object_literals', '-p', '({ f() {} })'];
var cp = spawnSync(process.execPath, args);
assert.equal(cp.status, 0);
assert.equal(cp.stdout.toString('utf8').trim(), '{ f: [Function: f] }');