Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 8ac6cfb4089ac722887e4ffd50be735ef56363b5
https://github.com/WebKit/WebKit/commit/8ac6cfb4089ac722887e4ffd50be735ef56363b5
Author: Yusuke Suzuki <[email protected]>
Date: 2024-08-20 (Tue, 20 Aug 2024)
Changed paths:
A JSTests/stress/json-stringify-inspector-check.js
A JSTests/stress/self-reference-json-stringify-overflow.js
M Source/JavaScriptCore/runtime/JSONObject.cpp
M Source/WTF/WTF.xcodeproj/project.pbxproj
M Source/WTF/wtf/CMakeLists.txt
M Source/WTF/wtf/text/StringBuilderJSON.cpp
A Source/WTF/wtf/text/StringBuilderJSON.h
Log Message:
-----------
[JSC] Add DynamicBuffer version of JSON FastStringifier
https://bugs.webkit.org/show_bug.cgi?id=278372
rdar://134322432
Reviewed by Keith Miller.
This patch extends JSON FastStringifier.
1. We add DynamicBuffer mode. Previously we are only supporting StaticBuffer
version so that if the generated string becomes too long, we fallback.
But this patch adds Vector<> backing dynamic buffer version so that
FastStringifier can work with very long output too.
2. Use currentStackPointer based stack overflow detection for DynamicBuffer
mode in JSON stringifier. StaticBuffer mode relies on static buffer's
fullfillment for stack overflow detection. For DynamicBuffer mode, we just
check stack pointer to detect stack overflow and going to the slow
path when it happens.
3. We support escaped strings generation in JSON FastStringifier. When the fast
path detects that the output string can contain escaped strings,
we go to the slow path code generating escaped strings.
* Source/JavaScriptCore/runtime/JSONObject.cpp:
(JSC::FastStringifier::recordFailure):
(JSC::bufferMode>::logOutcome):
(JSC::bufferMode>::buffer):
(JSC::bufferMode>::buffer const):
(JSC::bufferMode>::usableBufferSize):
(JSC::bufferMode>::FastStringifier):
(JSC::bufferMode>::haveFailure const):
(JSC::bufferMode>::result const):
(JSC::bufferMode>::recordFailure):
(JSC::bufferMode>::recordBufferFull):
(JSC::bufferMode>::hasRemainingCapacity):
(JSC::bufferMode>::hasRemainingCapacitySlow):
(JSC::bufferMode>::recordFastPropertyEnumerationFailure):
(JSC::bufferMode>::firstGetterSetterPropertyName const):
(JSC::bufferMode>::mayHaveToJSON const):
(JSC::bufferMode>::append):
(JSC::bufferMode>::stringify):
(JSC::stringify):
(JSC::FastStringifier<CharType>::logOutcome): Deleted.
(JSC::FastStringifier<CharType>::usableBufferSize): Deleted.
(JSC::FastStringifier<CharType>::FastStringifier): Deleted.
(JSC::FastStringifier<CharType>::haveFailure const): Deleted.
(JSC::FastStringifier<CharType>::result const): Deleted.
(JSC::FastStringifier<CharType>::recordFailure): Deleted.
(JSC::FastStringifier<CharType>::recordBufferFull): Deleted.
(JSC::FastStringifier<CharType>::hasRemainingCapacity): Deleted.
(JSC::FastStringifier<CharType>::hasRemainingCapacitySlow): Deleted.
(JSC::FastStringifier<CharType>::recordFastPropertyEnumerationFailure): Deleted.
(JSC::FastStringifier<CharType>::firstGetterSetterPropertyName const): Deleted.
(JSC::FastStringifier<CharType>::mayHaveToJSON const): Deleted.
(JSC::FastStringifier<CharType>::append): Deleted.
(JSC::FastStringifier<CharType>::stringify): Deleted.
* Source/WTF/WTF.xcodeproj/project.pbxproj:
* Source/WTF/wtf/CMakeLists.txt:
* Source/WTF/wtf/text/StringBuilderJSON.cpp:
(WTF::appendQuotedJSONStringInternal): Deleted.
* Source/WTF/wtf/text/StringBuilderJSON.h: Copied from
Source/WTF/wtf/text/StringBuilderJSON.cpp.
(WTF::appendQuotedJSONStringInternal):
Canonical link: https://commits.webkit.org/282502@main
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