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List: webkit-changes
Subject: [webkit-changes] [239537] trunk
From: yusukesuzuki () slowstart ! org
Date: 2018-12-22 6:41:03
Message-ID: 20181222064104.05D3710051CE () svn ! webkit ! org
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<dl class="meta">
<dt>Revision</dt> <dd><a \
href="http://trac.webkit.org/projects/webkit/changeset/239537">239537</a></dd> \
<dt>Author</dt> <dd>yusukesuzuki@slowstart.org</dd> <dt>Date</dt> <dd>2018-12-21 \
22:41:03 -0800 (Fri, 21 Dec 2018)</dd> </dl>
<h3>Log Message</h3>
<pre>[JSC] Implement "well-formed JSON.stringify" proposal
https://bugs.webkit.org/show_bug.cgi?id=191677
Reviewed by Darin Adler.
JSTests:
* stress/json-surrogate-pair.js: Added.
(shouldBe):
* test262/expectations.yaml:
Source/WTF:
This patch implements "well-formed JSON.stringify" proposal[1], which is \
now stage 3. JSON.stringify appended surrogate pair codes even if it is not paired \
appropriately. The proposal requires that broken surrogate pairs are unicode-escaped.
[1]: https://github.com/tc39/proposal-well-formed-stringify
* wtf/text/StringBuilderJSON.cpp:
(WTF::appendQuotedJSONStringInternal):
LayoutTests:
* css3/escape-dom-api-expected.txt:
* js/dom/webidl-type-mapping-expected.txt:
* js/resources/json2-es5-compat.js:
(isHighSurrogate):
(isLowSurrogate):
(isSurrogate):
(quote):</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkJSTestsChangeLog">trunk/JSTests/ChangeLog</a></li>
<li><a href="#trunkJSTeststest262expectationsyaml">trunk/JSTests/test262/expectations.yaml</a></li>
<li><a href="#trunkLayoutTestsChangeLog">trunk/LayoutTests/ChangeLog</a></li>
<li><a href="#trunkLayoutTestscss3escapedomapiexpectedtxt">trunk/LayoutTests/css3/escape-dom-api-expected.txt</a></li>
<li><a href="#trunkLayoutTestsjsdomwebidltypemappingexpectedtxt">trunk/LayoutTests/js/dom/webidl-type-mapping-expected.txt</a></li>
<li><a href="#trunkLayoutTestsjsresourcesjson2es5compatjs">trunk/LayoutTests/js/resources/json2-es5-compat.js</a></li>
<li><a href="#trunkSourceWTFChangeLog">trunk/Source/WTF/ChangeLog</a></li>
<li><a href="#trunkSourceWTFwtftextStringBuilderJSONcpp">trunk/Source/WTF/wtf/text/StringBuilderJSON.cpp</a></li>
</ul>
<h3>Added Paths</h3>
<ul>
<li><a href="#trunkJSTestsstressjsonsurrogatepairjs">trunk/JSTests/stress/json-surrogate-pair.js</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkJSTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/JSTests/ChangeLog (239536 => 239537)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/JSTests/ChangeLog 2018-12-22 06:39:23 UTC (rev 239536)
+++ trunk/JSTests/ChangeLog 2018-12-22 06:41:03 UTC (rev 239537)
</span><span class="lines">@@ -1,3 +1,14 @@
</span><ins>+2018-12-20 Yusuke Suzuki <yusukesuzuki@slowstart.org>
+
+ [JSC] Implement "well-formed JSON.stringify" proposal
+ https://bugs.webkit.org/show_bug.cgi?id=191677
+
+ Reviewed by Darin Adler.
+
+ * stress/json-surrogate-pair.js: Added.
+ (shouldBe):
+ * test262/expectations.yaml:
+
</ins><span class="cx"> 2018-12-20 Keith Miller <keith_miller@apple.com>
</span><span class="cx">
</span><span class="cx"> Add support for globalThis
</span></span></pre></div>
<a id="trunkJSTestsstressjsonsurrogatepairjs"></a>
<div class="addfile"><h4>Added: trunk/JSTests/stress/json-surrogate-pair.js (0 => \
239537)</h4> <pre class="diff"><span>
<span class="info">--- trunk/JSTests/stress/json-surrogate-pair.js \
(rev 0)
+++ trunk/JSTests/stress/json-surrogate-pair.js 2018-12-22 06:41:03 UTC (rev 239537)
</span><span class="lines">@@ -0,0 +1,14 @@
</span><ins>+function shouldBe(actual, expected) {
+ if (actual !== expected)
+ throw new Error('bad value: ' + actual);
+}
+
+shouldBe(JSON.stringify('𝌆'), `"𝌆"`);
+shouldBe(JSON.stringify('\uD834\uDF06'), `"𝌆"`);
+shouldBe(JSON.stringify('\uD834'), `"\\ud834"`);
+shouldBe(JSON.stringify('\uDF06'), `"\\udf06"`);
+shouldBe(JSON.stringify('\uDF06\uD834'), `"\\udf06\\ud834"`);
+shouldBe(JSON.stringify('\uDEAD'), `"\\udead"`);
+shouldBe(JSON.stringify('\uD834\uD834\uDF06'), `"\\ud834𝌆"`);
+shouldBe(JSON.stringify('\uD834a'), `"\\ud834a"`);
+shouldBe(JSON.stringify('\uD834\u0400'), `"\\ud834Ѐ"`);
</ins></span></pre></div>
<a id="trunkJSTeststest262expectationsyaml"></a>
<div class="modfile"><h4>Modified: trunk/JSTests/test262/expectations.yaml (239536 => \
239537)</h4> <pre class="diff"><span>
<span class="info">--- trunk/JSTests/test262/expectations.yaml 2018-12-22 06:39:23 \
UTC (rev 239536)
+++ trunk/JSTests/test262/expectations.yaml 2018-12-22 06:41:03 UTC (rev 239537)
</span><span class="lines">@@ -1022,9 +1022,6 @@
</span><span class="cx"> test/built-ins/JSON/parse/reviver-array-length-get-err.js:
</span><span class="cx"> default: 'Test262Error: Expected a Test262Error to be \
thrown but no exception was thrown at all' </span><span class="cx"> strict mode: \
'Test262Error: Expected a Test262Error to be thrown but no exception was thrown at \
all' </span><del>-test/built-ins/JSON/stringify/string-escape-unicode.js:
- default: 'Test262Error: JSON.stringify("\uD834") Expected SameValue( \
«"í ´" », «"\ud834" ») to be true'
- strict mode: 'Test262Error: JSON.stringify("\uD834") Expected SameValue( \
«"í ´" », «"\ud834" ») to be true' </del><span class="cx"> \
test/built-ins/Map/proto-from-ctor-realm.js: </span><span class="cx"> default: \
'Test262Error: Expected SameValue( «[object Map] », «[object Map] ») to be true' \
</span><span class="cx"> strict mode: 'Test262Error: Expected SameValue( «[object \
Map] », «[object Map] ») to be true' </span></span></pre></div>
<a id="trunkLayoutTestsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/ChangeLog (239536 => \
239537)</h4> <pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/ChangeLog 2018-12-22 06:39:23 UTC (rev \
239536)
+++ trunk/LayoutTests/ChangeLog 2018-12-22 06:41:03 UTC (rev 239537)
</span><span class="lines">@@ -1,3 +1,18 @@
</span><ins>+2018-12-20 Yusuke Suzuki <yusukesuzuki@slowstart.org>
+
+ [JSC] Implement "well-formed JSON.stringify" proposal
+ https://bugs.webkit.org/show_bug.cgi?id=191677
+
+ Reviewed by Darin Adler.
+
+ * css3/escape-dom-api-expected.txt:
+ * js/dom/webidl-type-mapping-expected.txt:
+ * js/resources/json2-es5-compat.js:
+ (isHighSurrogate):
+ (isLowSurrogate):
+ (isSurrogate):
+ (quote):
+
</ins><span class="cx"> 2018-12-21 Youenn Fablet <youenn@apple.com>
</span><span class="cx">
</span><span class="cx"> RTCRtpSender.setParameters() does set active \
parameter </span></span></pre></div>
<a id="trunkLayoutTestscss3escapedomapiexpectedtxt"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/css3/escape-dom-api-expected.txt \
(239536 => 239537)</h4> <pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/css3/escape-dom-api-expected.txt 2018-12-22 \
06:39:23 UTC (rev 239536)
+++ trunk/LayoutTests/css3/escape-dom-api-expected.txt 2018-12-22 06:41:03 UTC (rev \
239537) </span><span class="lines">@@ -61,8 +61,8 @@
</span><span class="cx"> PASS CSS.escape('ABCDEFGHIJKLMNOPQRSTUVWXYZ') is \
"ABCDEFGHIJKLMNOPQRSTUVWXYZ" </span><span class="cx"> PASS CSS.escape(' \
!xy') is "\\ \\!xy" </span><span class="cx"> PASS CSS.escape('ð') is \
"ð" </span><del>-PASS CSS.escape('í¼') is "í¼"
-PASS CSS.escape('í ´') is "í ´"
</del><ins>+PASS CSS.escape('í¼') is "\udf06"
+PASS CSS.escape('í ´') is "\ud834"
</ins><span class="cx"> PASS successfullyParsed is true
</span><span class="cx">
</span><span class="cx"> TEST COMPLETE
</span></span></pre></div>
<a id="trunkLayoutTestsjsdomwebidltypemappingexpectedtxt"></a>
<div class="modfile"><h4>Modified: \
trunk/LayoutTests/js/dom/webidl-type-mapping-expected.txt (239536 => 239537)</h4> \
<pre class="diff"><span> <span class="info">--- \
trunk/LayoutTests/js/dom/webidl-type-mapping-expected.txt 2018-12-22 06:39:23 UTC \
(rev 239536)
+++ trunk/LayoutTests/js/dom/webidl-type-mapping-expected.txt 2018-12-22 06:41:03 UTC \
(rev 239537) </span><span class="lines">@@ -1019,26 +1019,26 @@
</span><span class="cx"> PASS converter.testString = {toString: function() { throw \
Error(); }} threw exception Error. </span><span class="cx"> PASS \
converter.testUSVString is "Ä" </span><span class="cx"> PASS \
converter.testString is "Ä" </span><del>-converter.testUSVString = "í \
"
-converter.testString = "í "
</del><ins>+converter.testUSVString = "\ud800"
+converter.testString = "\ud800"
</ins><span class="cx"> PASS converter.testUSVString is "�"
</span><del>-PASS converter.testString is "í "
-converter.testUSVString = "í°"
-converter.testString = "í°"
</del><ins>+PASS converter.testString is "\ud800"
+converter.testUSVString = "\udc00"
+converter.testString = "\udc00"
</ins><span class="cx"> PASS converter.testUSVString is "�"
</span><del>-PASS converter.testString is "í°"
-converter.testUSVString = "í \u0000"
-converter.testString = "í \u0000"
</del><ins>+PASS converter.testString is "\udc00"
+converter.testUSVString = "\ud800\u0000"
+converter.testString = "\ud800\u0000"
</ins><span class="cx"> PASS converter.testUSVString is "�\u0000"
</span><del>-PASS converter.testString is "í \u0000"
-converter.testUSVString = "í°\u0000"
-converter.testString = "í°\u0000"
</del><ins>+PASS converter.testString is "\ud800\u0000"
+converter.testUSVString = "\udc00\u0000"
+converter.testString = "\udc00\u0000"
</ins><span class="cx"> PASS converter.testUSVString is "�\u0000"
</span><del>-PASS converter.testString is "í°\u0000"
-converter.testUSVString = "í°í "
-converter.testString = "í°í "
</del><ins>+PASS converter.testString is "\udc00\u0000"
+converter.testUSVString = "\udc00\ud800"
+converter.testString = "\udc00\ud800"
</ins><span class="cx"> PASS converter.testUSVString is "��"
</span><del>-PASS converter.testString is "í°í "
</del><ins>+PASS converter.testString is "\udc00\ud800"
</ins><span class="cx"> converter.testUSVString = "ð"
</span><span class="cx"> converter.testString = "ð"
</span><span class="cx"> PASS converter.testUSVString is "ð"
</span></span></pre></div>
<a id="trunkLayoutTestsjsresourcesjson2es5compatjs"></a>
<div class="modfile"><h4>Modified: trunk/LayoutTests/js/resources/json2-es5-compat.js \
(239536 => 239537)</h4> <pre class="diff"><span>
<span class="info">--- trunk/LayoutTests/js/resources/json2-es5-compat.js 2018-12-22 \
06:39:23 UTC (rev 239536)
+++ trunk/LayoutTests/js/resources/json2-es5-compat.js 2018-12-22 06:41:03 UTC (rev \
239537) </span><span class="lines">@@ -182,7 +182,7 @@
</span><span class="cx"> }
</span><span class="cx">
</span><span class="cx"> var cx = \
/[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
</span><del>- escapable = /[\\\"\x00-\x1f]/g,
</del><ins>+ escapable = /[\\\"\x00-\x1f\ud800-\udbff\udc00-\udfff]/g,
</ins><span class="cx"> gap,
</span><span class="cx"> indent,
</span><span class="cx"> meta = { // table of character substitutions
</span><span class="lines">@@ -196,7 +196,19 @@
</span><span class="cx"> },
</span><span class="cx"> rep;
</span><span class="cx">
</span><ins>+ function isHighSurrogate(code) {
+ return code >= 0xd800 && code <= 0xdbff;
+ }
</ins><span class="cx">
</span><ins>+ function isLowSurrogate(code) {
+ return code >= 0xdc00 && code <= 0xdfff;
+ }
+
+ function isSurrogate(code) {
+ return isHighSurrogate(code) || isLowSurrogate(code);
+ }
+
+
</ins><span class="cx"> function quote(string) {
</span><span class="cx">
</span><span class="cx"> // If the string contains no control characters, no quote \
characters, and no </span><span class="lines">@@ -206,10 +218,21 @@
</span><span class="cx">
</span><span class="cx"> escapable.lastIndex = 0;
</span><span class="cx"> return escapable.test(string) ?
</span><del>- '"' + string.replace(escapable, function (a) {
</del><ins>+ '"' + string.replace(escapable, function (a, offset) {
</ins><span class="cx"> var c = meta[a];
</span><del>- return typeof c === 'string' ? c :
- '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
</del><ins>+ if (typeof c === 'string')
+ return c;
+ var code = a.charCodeAt(0);
+ if (!isSurrogate(code))
+ return '\\u' + ('0000' + \
a.charCodeAt(0).toString(16)).slice(-4); +
+ if (isLowSurrogate(code) && (offset - 1) >= 0 && \
isHighSurrogate(string.charCodeAt(offset - 1))) + return a;
+
+ if (isHighSurrogate(code) && (offset + 1) < string.length \
&& isLowSurrogate(string.charCodeAt(offset + 1))) + return \
a; +
+ return '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
</ins><span class="cx"> }) + '"' :
</span><span class="cx"> '"' + string + '"';
</span><span class="cx"> }
</span></span></pre></div>
<a id="trunkSourceWTFChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WTF/ChangeLog (239536 => 239537)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WTF/ChangeLog 2018-12-22 06:39:23 UTC (rev \
239536)
+++ trunk/Source/WTF/ChangeLog 2018-12-22 06:41:03 UTC (rev 239537)
</span><span class="lines">@@ -1,3 +1,19 @@
</span><ins>+2018-12-20 Yusuke Suzuki <yusukesuzuki@slowstart.org>
+
+ [JSC] Implement "well-formed JSON.stringify" proposal
+ https://bugs.webkit.org/show_bug.cgi?id=191677
+
+ Reviewed by Darin Adler.
+
+ This patch implements "well-formed JSON.stringify" proposal[1], \
which is now stage 3. + JSON.stringify appended surrogate pair codes even if \
it is not paired appropriately. + The proposal requires that broken surrogate \
pairs are unicode-escaped. +
+ [1]: https://github.com/tc39/proposal-well-formed-stringify
+
+ * wtf/text/StringBuilderJSON.cpp:
+ (WTF::appendQuotedJSONStringInternal):
+
</ins><span class="cx"> 2018-12-21 Alex Christensen <achristensen@webkit.org>
</span><span class="cx">
</span><span class="cx"> Expand use of sourceApplicationAuditData
</span></span></pre></div>
<a id="trunkSourceWTFwtftextStringBuilderJSONcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WTF/wtf/text/StringBuilderJSON.cpp \
(239536 => 239537)</h4> <pre class="diff"><span>
<span class="info">--- trunk/Source/WTF/wtf/text/StringBuilderJSON.cpp 2018-12-22 \
06:39:23 UTC (rev 239536)
+++ trunk/Source/WTF/wtf/text/StringBuilderJSON.cpp 2018-12-22 06:41:03 UTC (rev \
239537) </span><span class="lines">@@ -57,20 +57,47 @@
</span><span class="cx"> {
</span><span class="cx"> for (auto* end = input + length; input != end; ++input) \
{ </span><span class="cx"> auto character = *input;
</span><del>- auto escaped = escapedFormsForJSON[character & 0xFF];
- if (LIKELY(!escaped || character > 0xFF)) {
</del><ins>+ if (LIKELY(character <= 0xFF)) {
+ auto escaped = escapedFormsForJSON[character];
+ if (LIKELY(!escaped)) {
+ *output++ = character;
+ continue;
+ }
+
+ *output++ = '\\';
+ *output++ = escaped;
+ if (UNLIKELY(escaped == 'u')) {
+ *output++ = '0';
+ *output++ = '0';
+ *output++ = upperNibbleToLowercaseASCIIHexDigit(character);
+ *output++ = lowerNibbleToLowercaseASCIIHexDigit(character);
+ }
+ continue;
+ }
+
+ if (LIKELY(!U16_IS_SURROGATE(character))) {
</ins><span class="cx"> *output++ = character;
</span><span class="cx"> continue;
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+ auto next = input + 1;
+ bool isValidSurrogatePair = U16_IS_SURROGATE_LEAD(character) && next \
!= end && U16_IS_TRAIL(*next); + if (isValidSurrogatePair) {
+ *output++ = character;
+ *output++ = *next;
+ ++input;
+ continue;
+ }
+
+ uint8_t upper = static_cast<uint32_t>(character) >> 8;
+ uint8_t lower = static_cast<uint8_t>(character);
</ins><span class="cx"> *output++ = '\\';
</span><del>- *output++ = escaped;
- if (UNLIKELY(escaped == 'u')) {
- *output++ = '0';
- *output++ = '0';
- *output++ = upperNibbleToLowercaseASCIIHexDigit(character);
- *output++ = lowerNibbleToLowercaseASCIIHexDigit(character);
- }
</del><ins>+ *output++ = 'u';
+ *output++ = upperNibbleToLowercaseASCIIHexDigit(upper);
+ *output++ = lowerNibbleToLowercaseASCIIHexDigit(upper);
+ *output++ = upperNibbleToLowercaseASCIIHexDigit(lower);
+ *output++ = lowerNibbleToLowercaseASCIIHexDigit(lower);
+ continue;
</ins><span class="cx"> }
</span><span class="cx"> }
</span><span class="cx">
</span></span></pre>
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