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Issue #1691 - Part 7e: Dependencies for required to finish part 7d. https://bugzilla.mozilla.org/show_bug.cgi?id=1331662 Reimplement EvaluateString using the ExecutionContext class. https://bugzilla.mozilla.org/show_bug.cgi?id=1316078 Extract redudant code into StartOffThreadParseTask. Use an ExclusiveContext instead of a JSContext in XDR functions. Add a script decoder as a valid off-main-thread parse-task. https://bugzilla.mozilla.org/show_bug.cgi?id=900784 Add nsJSUtils functions for encoding and decoding the bytecode. https://bugzilla.mozilla.org/show_bug.cgi?id=1316081 Add XDRIncrementalEncoder to replace delazified LazyScript in the encoded XDR buffer. Add an XDRIncrementalEncoder instance on the ScriptSource. Expose a new JSAPI to incrementally encode bytecode when it is generated. https://bugzilla.mozilla.org/show_bug.cgi?id=1334091 XDR function use the sourceObject instead of the enclosingScript as argument.

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(cherry picked from commit d6de9a669f4b2f5115670bd771cd53d7cfb3956a)
This commit is contained in:
Brian Smith 2023-04-20 07:38:48 -05:00 • committed by roytam1
commit 993476283d
22 changed files with 1224 additions and 171 deletions
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45
js/src/jsapi.cpp
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@ -4202,6 +4202,31 @@ JS::CancelOffThreadModule(JSContext* cx, void* token)
HelperThreadState().cancelParseTask(cx, ParseTaskKind::Module, token);
}
JS_PUBLIC_API(bool)
JS::DecodeOffThreadScript(JSContext* cx, const ReadOnlyCompileOptions& options,
mozilla::Vector<uint8_t>& buffer /* TranscodeBuffer& */, size_t cursor,
OffThreadCompileCallback callback, void* callbackData)
{
MOZ_ASSERT(CanCompileOffThread(cx, options, buffer.length() - cursor));
return StartOffThreadDecodeScript(cx, options, buffer, cursor, callback, callbackData);
}
JS_PUBLIC_API(JSScript*)
JS::FinishOffThreadScriptDecoder(JSContext* cx, void* token)
{
MOZ_ASSERT(cx);
MOZ_ASSERT(CurrentThreadCanAccessRuntime(cx));
return HelperThreadState().finishScriptDecodeTask(cx, token);
}
JS_PUBLIC_API(void)
JS::CancelOffThreadScriptDecoder(JSContext* cx, void* token)
{
MOZ_ASSERT(cx);
MOZ_ASSERT(CurrentThreadCanAccessRuntime(cx));
HelperThreadState().cancelParseTask(cx, ParseTaskKind::ScriptDecode, token);
}
JS_PUBLIC_API(bool)
JS_CompileScript(JSContext* cx, const char* ascii, size_t length,
const JS::CompileOptions& options, MutableHandleScript script)
@ -7101,6 +7126,26 @@ JS::DecodeInterpretedFunction(JSContext* cx, TranscodeBuffer& buffer,
return decoder.resultCode();
}
JS_PUBLIC_API(bool)
JS::StartIncrementalEncoding(JSContext* cx, TranscodeBuffer& buffer, JS::HandleScript script)
{
if (!script)
return false;
if (!script->scriptSource()->xdrEncodeTopLevel(cx, buffer, script))
return false;
return true;
}
JS_PUBLIC_API(bool)
JS::FinishIncrementalEncoding(JSContext* cx, JS::HandleScript script)
{
if (!script)
return false;
if (!script->scriptSource()->xdrFinalizeEncoder())
return false;
return true;
}
JS_PUBLIC_API(void)
JS::SetBuildIdOp(JSContext* cx, JS::BuildIdOp buildIdOp)
{