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https://github.com/RGBCube/serenity
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LibJS: Make Script and Module GC-allocated
This ensures that code currently in any active or saved execution stack always stays alive.
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parent
cb15132146
commit
00c8f07192
18 changed files with 145 additions and 89 deletions
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@ -205,6 +205,11 @@ void VM::gather_roots(HashTable<Cell*>& roots)
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roots.set(execution_context->lexical_environment);
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roots.set(execution_context->variable_environment);
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roots.set(execution_context->private_environment);
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execution_context->script_or_module.visit(
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[](Empty) {},
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[&](auto& script_or_module) {
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roots.set(script_or_module.ptr());
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});
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}
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};
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@ -800,7 +805,7 @@ ThrowCompletionOr<void> VM::link_and_eval_module(Module& module)
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dbgln("Warning: Using multiple modules as entry point can lead to unexpected results");
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m_loaded_modules.empend(
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module.make_weak_ptr(),
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NonnullGCPtr(module),
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module.filename(),
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String {}, // Null type
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module,
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@ -865,7 +870,7 @@ static String resolve_module_filename(StringView filename, StringView module_typ
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}
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// 16.2.1.7 HostResolveImportedModule ( referencingScriptOrModule, specifier ), https://tc39.es/ecma262/#sec-hostresolveimportedmodule
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ThrowCompletionOr<NonnullRefPtr<Module>> VM::resolve_imported_module(ScriptOrModule referencing_script_or_module, ModuleRequest const& module_request)
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ThrowCompletionOr<NonnullGCPtr<Module>> VM::resolve_imported_module(ScriptOrModule referencing_script_or_module, ModuleRequest const& module_request)
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{
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// An implementation of HostResolveImportedModule must conform to the following requirements:
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// - If it completes normally, the [[Value]] slot of the completion must contain an instance of a concrete subclass of Module Record.
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@ -912,9 +917,9 @@ ThrowCompletionOr<NonnullRefPtr<Module>> VM::resolve_imported_module(ScriptOrMod
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},
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[&](auto& script_or_module) {
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if constexpr (IsSame<Script*, decltype(script_or_module)>) {
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return String::formatted("Script @ {}", script_or_module);
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return String::formatted("Script @ {}", script_or_module.ptr());
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}
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return String::formatted("Module @ {}", script_or_module);
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return String::formatted("Module @ {}", script_or_module.ptr());
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});
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dbgln_if(JS_MODULE_DEBUG, "[JS MODULE] resolve_imported_module({}, {})", referencing_module_string, filename);
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@ -924,7 +929,7 @@ ThrowCompletionOr<NonnullRefPtr<Module>> VM::resolve_imported_module(ScriptOrMod
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auto* loaded_module_or_end = get_stored_module(referencing_script_or_module, filename, module_type);
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if (loaded_module_or_end != nullptr) {
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dbgln_if(JS_MODULE_DEBUG, "[JS MODULE] resolve_imported_module({}) already loaded at {}", filename, loaded_module_or_end->module.ptr());
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return loaded_module_or_end->module;
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return NonnullGCPtr(*loaded_module_or_end->module);
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}
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dbgln_if(JS_MODULE_DEBUG, "[JS MODULE] reading and parsing module {}", filename);
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@ -939,7 +944,7 @@ ThrowCompletionOr<NonnullRefPtr<Module>> VM::resolve_imported_module(ScriptOrMod
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auto file_content = file_or_error.value()->read_all();
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StringView content_view { file_content.data(), file_content.size() };
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auto module = TRY([&]() -> ThrowCompletionOr<NonnullRefPtr<Module>> {
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auto module = TRY([&]() -> ThrowCompletionOr<NonnullGCPtr<Module>> {
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// If assertions has an entry entry such that entry.[[Key]] is "type", let type be entry.[[Value]]. The following requirements apply:
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// If type is "json", then this algorithm must either invoke ParseJSONModule and return the resulting Completion Record, or throw an exception.
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if (module_type == "json"sv) {
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@ -965,7 +970,7 @@ ThrowCompletionOr<NonnullRefPtr<Module>> VM::resolve_imported_module(ScriptOrMod
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referencing_script_or_module,
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filename,
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module_type,
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module,
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*module,
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false);
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return module;
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