v8/test/mjsunit/es6/mirror-symbols.js
adamk@chromium.org d8c30bd8e7 Enable ES6 Symbols by default
In doing so also remove all references to the --harmony-symbols flag.
Due to the way context snapshotting works, it's not possible to simply enable
the flag by default.

BUG=v8:2158
LOG=Y
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/421313004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22831 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-08-04 18:17:54 +00:00

39 lines
1.4 KiB
JavaScript

// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --expose-debug-as debug
// Test the mirror object for symbols.
function testSymbolMirror(symbol, description) {
// Create mirror and JSON representation.
var mirror = debug.MakeMirror(symbol);
var serializer = debug.MakeMirrorSerializer();
var json = JSON.stringify(serializer.serializeValue(mirror));
// Check the mirror hierachy.
assertTrue(mirror instanceof debug.Mirror);
assertTrue(mirror instanceof debug.ValueMirror);
assertTrue(mirror instanceof debug.SymbolMirror);
// Check the mirror properties.
assertTrue(mirror.isSymbol());
assertEquals(description, mirror.description());
assertEquals('symbol', mirror.type());
assertTrue(mirror.isPrimitive());
var description_text = description === undefined ? "" : description;
assertEquals('Symbol(' + description_text + ')', mirror.toText());
assertSame(symbol, mirror.value());
// Parse JSON representation and check.
var fromJSON = eval('(' + json + ')');
assertEquals('symbol', fromJSON.type);
assertEquals(description, fromJSON.description);
}
// Test a number of different symbols.
testSymbolMirror(Symbol("a"), "a");
testSymbolMirror(Symbol(12), "12");
testSymbolMirror(Symbol.for("b"), "b");
testSymbolMirror(Symbol(), undefined);