v8/test/mjsunit/regress/regress-4962.js
littledan 788c96a955 [intl] Remove redundant type checking system
Previously, the Intl implementation tracked types two ways:
 - In the intl_initialized_marker_symbol
 - In various named properties of the intl_impl_object_symbol value

As far as I can tell, these will never disagree with each other,
modulo bugs in Intl itself. This patch removes the second type
checking system.

This reland includes a fixed type check for
Intl.DateTimeFormat.prototype.formatToParts , which is the only Intl
method which is not bound. All future methods will follow this
pattern.

The second reland ensures that a newly inserted test is only run
if Intl is present.

BUG=v8:5751,chromium:677055, v8:4962
CQ_INCLUDE_TRYBOTS=master.tryserver.v8:v8_linux_noi18n_rel_ng

TBR=yangguo@chromium.org

Review-Url: https://codereview.chromium.org/2623683002
Cr-Commit-Position: refs/heads/master@{#42152}
2017-01-09 22:24:57 +00:00

12 lines
420 B
JavaScript

// Copyright 2016 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.
if (this.Intl) {
assertInstanceof(Intl.NumberFormat.call(new Proxy({},{})), Intl.NumberFormat);
assertThrows(() =>
Intl.DateTimeFormat.prototype.formatToParts.call(
new Proxy({}, {})),
TypeError);
}