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LibJS: Don't directly teach the heap about the javascript VM or Realm

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Instead, smuggle it in as a `void*` private data and let Javascript
aware code cast out that pointer to a VM&.

In order to make this split, rename JS::Cell to JS::CellImpl. Once we
have a LibGC, this will become GC::Cell. CellImpl then has no specific
knowledge of the VM& and Realm&. That knowledge is instead put into
JS::Cell, which inherits from CellImpl. JS::Cell is responsible for
JavaScript's realm initialization, as well as converting of the void*
private data to what it knows should be the VM&.
This commit is contained in:
Shannon Booth 2024-11-14 20:22:33 +13:00 • committed by Andreas Kling
commit c2988a7dd5
Notes: github-actions[bot] 2024-11-14 14:39:37 +00:00
27 changed files with 346 additions and 296 deletions
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2
Libraries/LibJS/Runtime/VM.h
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@ -60,7 +60,7 @@ public:
void dump_backtrace() const;
void gather_roots(HashMap<Cell*, HeapRoot>&);
void gather_roots(HashMap<CellImpl*, HeapRoot>&);
#define __JS_ENUMERATE(SymbolName, snake_name) \
NonnullGCPtr<Symbol> well_known_symbol_##snake_name() const \