0dd69ec439
ES5.1 section 6 ("Source Text"):
"Throughout the rest of this document, the phrase “code unit” and the
word “character” will be used to refer to a 16-bit unsigned value
used to represent a single 16-bit unit of text."
This changed in ES6 draft section 10.1 ("Source Text"):
"The ECMAScript code is expressed using Unicode, version 5.1 or later.
ECMAScript source text is a sequence of code points. All Unicode code
point values from U+0000 to U+10FFFF, including surrogate code points,
may occur in source text where permitted by the ECMAScript grammars."
This patch is to reflect this spec change.
BUG=v8:3617
LOG=Y
R=jochen@chromium.org
Review URL: https://codereview.chromium.org/640193002
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24510 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
44 lines
1.0 KiB
JavaScript
44 lines
1.0 KiB
JavaScript
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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function toSurrogatePair(c) {
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return String.fromCharCode(((c - 0x10000) >>> 10) & 0x3FF | 0xD800) +
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String.fromCharCode(c & 0x3FF | 0xDC00);
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}
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function testIdStart(c, is_id_start) {
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var source = "var " + toSurrogatePair(c);
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print(source);
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if (is_id_start) {
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assertDoesNotThrow(source);
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} else {
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assertThrows(source);
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}
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}
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function testIdPart(c, is_id_start) {
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var source = "var v" + toSurrogatePair(c);
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print(source);
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if (is_id_start) {
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assertDoesNotThrow(source);
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} else {
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assertThrows(source);
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}
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}
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[0x10403, 0x1043C, 0x16F9C, 0x10048, 0x1014D].forEach(function(c) {
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testIdStart(c, true);
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testIdPart(c, true);
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});
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[0x101FD, 0x11002, 0x104A9].forEach(function(c) {
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testIdStart(c, false);
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testIdPart(c, true);
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});
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[0x10111, 0x1F4A9].forEach(function(c) {
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testIdStart(c, false);
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testIdPart(c, false);
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});
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