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Issue #2387 - Remove a missed AddRef() which could cause leaks. Update comments explaining how the reference counting works.

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This commit is contained in:
Brian Smith 2023-11-28 11:55:03 -06:00 • committed by roytam1
commit 3e9fd21a38
1 changed files with 7 additions and 7 deletions
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14
dom/script/ModuleScript.cpp
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@ -53,13 +53,12 @@ LoadedScript::LoadedScript(ScriptKind aKind,
LoadedScript::~LoadedScript() { DropJSObjects(this); }
void LoadedScript::AssociateWithScript(JSScript* aScript) {
// Set a JSScript's private value to point to this object and
// increment our reference count. This is decremented by
// HostFinalizeTopLevelScript() below when the JSScript dies.
// Set a JSScript's private value to point to this object. The JS engine will
// increment our reference count by calling HostAddRefTopLevelScript(). This
// is decremented by HostReleaseTopLevelScript() below when the JSScript dies.
MOZ_ASSERT(JS::GetScriptPrivate(aScript).isUndefined());
JS::SetScriptPrivate(aScript, JS::PrivateValue(this));
AddRef();
}
inline void CheckModuleScriptPrivate(LoadedScript* script,
@ -163,9 +162,10 @@ ModuleScript::SetModuleRecord(JS::Handle<JSObject*> aModuleRecord)
mModuleRecord = aModuleRecord;
// Make module's host defined field point to this object and
// increment our reference count. This is decremented by
// UnlinkModuleRecord() above.
// Make module's host defined field point to this object. The JS engine will
// increment our reference count by calling HostAddRefTopLevelScript(). This
// is decremented when the field is cleared in UnlinkModuleRecord() above or
// when the module record dies.
MOZ_ASSERT(JS::GetModulePrivate(mModuleRecord).isUndefined());
JS::SetModulePrivate(mModuleRecord, JS::PrivateValue(this));
HoldJSObjects(this);