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LibJS: Shrink ExecutionContext by replacing ScriptOrModule with Cell*

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Replace the 16-byte Variant<Empty, GC::Ref<Script>, GC::Ref<Module>>
with a simple 8-byte GC::Ptr<Cell> that points to either a Script or
Module (or is null for Empty).

A helper function script_or_module_from_cell() converts back to the
full ScriptOrModule variant when needed (e.g. in
VM::get_active_script_or_module).
This commit is contained in:
Andreas Kling 2026-03-08 13:29:49 +01:00 • committed by Andreas Kling
parent c8ad07dece
commit d3495c62a7
Notes: github-actions[bot] 2026-03-11 12:35:02 +00:00
16 changed files with 60 additions and 50 deletions
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Libraries/LibWeb/HTML/Scripting/ModuleScript.cpp
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@ -128,7 +128,7 @@ JS::Promise* JavaScriptModuleScript::run(PreventErrorReporting)
auto* module_execution_context = stack.allocate(0, 0, 0);
VERIFY(module_execution_context);
module_execution_context->realm = &realm;
module_execution_context->script_or_module = GC::Ref<JS::Module> { *record };
module_execution_context->script_or_module = record;
vm().push_execution_context(*module_execution_context);
// 2. Set evaluationPromise to record.Evaluate().