Re: [PATCH v2 0/8] MR10045: jscript/mshtml: Traverse mshtml and external gecko objects from the jscript GC.

[Jacek Caban (＠jacek)]

Jacek Caban (@jacek) commented about dlls/mshtml/nsiface.idl:
> +typedef struct nsCycleCollectionTraversalCallback nsCycleCollectionTraversalCallback;
> +typedef struct nsCycleCollectionParticipant nsCycleCollectionParticipant;
> +
> +typedef struct nsCycleCollectionParticipantVtbl
> +{
> +    nsresult (__stdcall *Traverse)(nsCycleCollectionParticipant *This, void *p, nsCycleCollectionTraversalCallback *cb);
> +    void (__stdcall *Root)(nsCycleCollectionParticipant *This, void *p);
> +    void (__stdcall *Unlink)(nsCycleCollectionParticipant *This, void *p);
> +    void (__stdcall *Unroot)(nsCycleCollectionParticipant *This, void *p);
> +    void (__stdcall *Trace)(nsCycleCollectionParticipant *This, void *p, const void /*TraceCallbacks*/ *cb, void *closure);
> +    void (__stdcall *DeleteCycleCollectable)(nsCycleCollectionParticipant *This, void *p);
> +    bool (__stdcall *CanSkipReal)(nsCycleCollectionParticipant *This, bool removingAllowed);
> +    bool (__stdcall *CanSkipInCCReal)(nsCycleCollectionParticipant *This, void *p);
> +    bool (__stdcall *CanSkipThisReal)(nsCycleCollectionParticipant *This, void *p);
> +} nsCycleCollectionParticipantVtbl;

A similar question, can it be an interface?

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https://gitlab.winehq.org/wine/wine/-/merge_requests/10045#note_149716