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Issue #2387 - Collection of fixes related to a crash while canceling a dynamic import. Add AddRef/Release hooks for embedding's script or module private value and set this script source object where appropriate. https://bugzilla.mozilla.org/show_bug.cgi?id=1519140 Partial, no Value passing changes. Clear the list of dynamic import requests after cancelling them in ScriptLoader::ParsingComplete as we do for other requests. https://bugzilla.mozilla.org/show_bug.cgi?id=1291535 ScriptLoader::OnStreamComplete never returns a failure. https://bugzilla.mozilla.org/show_bug.cgi?id=1627275 Also cancel the correct kind of parser for Modules.

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This commit is contained in:
Brian Smith
2023-11-27 23:30:25 -06:00
committed by roytam1
parent 56bcdf7ca0
commit eef37b2cd5
10 changed files with 100 additions and 54 deletions
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dom/script/ModuleScript.cpp
+20 -9
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@@ -62,20 +62,33 @@ void LoadedScript::AssociateWithScript(JSScript* aScript) {
AddRef();
}
void HostFinalizeTopLevelScript(JSFreeOp* aFop, const JS::Value& aPrivate) {
// Decrement the reference count of a LoadedScript object that is
// pointed to by a dying JSScript. The reference count was
// originally incremented by AssociateWithScript() above.
auto script = static_cast<LoadedScript*>(aPrivate.toPrivate());
inline void CheckModuleScriptPrivate(LoadedScript* script,
const JS::Value& aPrivate) {
#ifdef DEBUG
if (script->IsModuleScript()) {
JSObject* module = script->AsModuleScript()->mModuleRecord.unbarrieredGet();
MOZ_ASSERT_IF(module, JS::GetModulePrivate(module) == aPrivate);
}
#endif
}
void HostAddRefTopLevelScript(const JS::Value& aPrivate) {
// Increment the reference count of a LoadedScript object that is now pointed
// to by a JSScript. The reference count is decremented by
// HostReleaseTopLevelScript() below.
auto script = static_cast<LoadedScript*>(aPrivate.toPrivate());
CheckModuleScriptPrivate(script, aPrivate);
script->AddRef();
}
void HostReleaseTopLevelScript(const JS::Value& aPrivate) {
// Decrement the reference count of a LoadedScript object that was pointed to
// by a JSScript. The reference count was originally incremented by
// HostAddRefTopLevelScript() above.
auto script = static_cast<LoadedScript*>(aPrivate.toPrivate());
CheckModuleScriptPrivate(script, aPrivate);
script->Release();
}
@@ -132,7 +145,6 @@ ModuleScript::UnlinkModuleRecord()
this);
JS::SetModulePrivate(mModuleRecord, JS::UndefinedValue());
mModuleRecord = nullptr;
Release();
}
}
@@ -157,7 +169,6 @@ ModuleScript::SetModuleRecord(JS::Handle<JSObject*> aModuleRecord)
MOZ_ASSERT(JS::GetModulePrivate(mModuleRecord).isUndefined());
JS::SetModulePrivate(mModuleRecord, JS::PrivateValue(this));
HoldJSObjects(this);
AddRef();
}
void