RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 23:07:35 +00:00
Code Issues Activity Actions

LibJS+LibWeb: Replace GlobalObject with Realm in create() functions

Browse source 
This is a continuation of the previous two commits.

As allocating a JS cell already primarily involves a realm instead of a
global object, and we'll need to pass one to the allocate() function
itself eventually (it's bridged via the global object right now), the
create() functions need to receive a realm as well.
The plan is for this to be the highest-level function that actually
receives a realm and passes it around, AOs on an even higher level will
use the "current realm" concept via VM::current_realm() as that's what
the spec assumes; passing around realms (or global objects, for that
matter) on higher AO levels is pointless and unlike for allocating
individual objects, which may happen outside of regular JS execution, we
don't need control over the specific realm that is being used there.
This commit is contained in:
Linus Groh 2022-08-16 00:20:49 +01:00
parent 5dd5896588
commit b99cc7d050
178 changed files with 883 additions and 609 deletions
Download patch file Download diff file Expand all files Collapse all files

29
Userland/Libraries/LibJS/Runtime/VM.cpp
View file

@ -74,19 +74,19 @@ VM::VM(OwnPtr<CustomData> custom_data)
host_import_module_dynamically = [&](ScriptOrModule, ModuleRequest const&, PromiseCapability promise_capability) {
// By default, we throw on dynamic imports this is to prevent arbitrary file access by scripts.
VERIFY(current_realm());
auto& global_object = current_realm()->global_object();
auto* promise = Promise::create(global_object);
auto& realm = *current_realm();
auto* promise = Promise::create(realm);
// If you are here because you want to enable dynamic module importing make sure it won't be a security problem
// by checking the default implementation of HostImportModuleDynamically and creating your own hook or calling
// vm.enable_default_host_import_module_dynamically_hook().
promise->reject(Error::create(global_object, ErrorType::DynamicImportNotAllowed.message()));
promise->reject(Error::create(realm, ErrorType::DynamicImportNotAllowed.message()));
promise->perform_then(
NativeFunction::create(global_object, "", [](auto&, auto&) -> ThrowCompletionOr<Value> {
NativeFunction::create(realm, "", [](auto&, auto&) -> ThrowCompletionOr<Value> {
VERIFY_NOT_REACHED();
}),
NativeFunction::create(global_object, "", [reject = make_handle(promise_capability.reject)](auto& vm, auto& global_object) -> ThrowCompletionOr<Value> {
NativeFunction::create(realm, "", [reject = make_handle(promise_capability.reject)](auto& vm, auto& global_object) -> ThrowCompletionOr<Value> {
auto error = vm.argument(0);
// a. Perform ! Call(promiseCapability.[[Reject]], undefined, « error »).
@ -314,6 +314,7 @@ ThrowCompletionOr<void> VM::binding_initialization(NonnullRefPtr<BindingPattern>
// 14.3.3.1 Runtime Semantics: PropertyBindingInitialization, https://tc39.es/ecma262/#sec-destructuring-binding-patterns-runtime-semantics-propertybindinginitialization
ThrowCompletionOr<void> VM::property_binding_initialization(BindingPattern const& binding, Value value, Environment* environment, GlobalObject& global_object)
{
auto& realm = *global_object.associated_realm();
auto* object = TRY(value.to_object(global_object));
HashTable<PropertyKey> seen_names;
@ -331,7 +332,7 @@ ThrowCompletionOr<void> VM::property_binding_initialization(BindingPattern const
VERIFY_NOT_REACHED();
}
auto* rest_object = Object::create(global_object, global_object.object_prototype());
auto* rest_object = Object::create(realm, global_object.object_prototype());
VERIFY(rest_object);
TRY(rest_object->copy_data_properties(object, seen_names, global_object));
@ -406,6 +407,8 @@ ThrowCompletionOr<void> VM::property_binding_initialization(BindingPattern const
// 8.5.3 Runtime Semantics: IteratorBindingInitialization, https://tc39.es/ecma262/#sec-runtime-semantics-iteratorbindinginitialization
ThrowCompletionOr<void> VM::iterator_binding_initialization(BindingPattern const& binding, Iterator& iterator_record, Environment* environment, GlobalObject& global_object)
{
auto& realm = *global_object.associated_realm();
// FIXME: this method is nearly identical to destructuring assignment!
for (size_t i = 0; i < binding.entries.size(); i++) {
auto& entry = binding.entries[i];
@ -427,7 +430,7 @@ ThrowCompletionOr<void> VM::iterator_binding_initialization(BindingPattern const
VERIFY(i == binding.entries.size() - 1);
// 2. Let A be ! ArrayCreate(0).
auto* array = MUST(Array::create(global_object, 0));
auto* array = MUST(Array::create(realm, 0));
// 3. Let n be 0.
// 4. Repeat,
@ -955,7 +958,7 @@ ThrowCompletionOr<NonnullRefPtr<Module>> VM::resolve_imported_module(ScriptOrMod
// 16.2.1.8 HostImportModuleDynamically ( referencingScriptOrModule, specifier, promiseCapability ), https://tc39.es/ecma262/#sec-hostimportmoduledynamically
void VM::import_module_dynamically(ScriptOrModule referencing_script_or_module, ModuleRequest module_request, PromiseCapability promise_capability)
{
auto& global_object = current_realm()->global_object();
auto& realm = *current_realm();
// Success path:
// - At some future time, the host environment must perform FinishDynamicImport(referencingScriptOrModule, moduleRequest, promiseCapability, promise),
@ -969,7 +972,7 @@ void VM::import_module_dynamically(ScriptOrModule referencing_script_or_module,
// FinishDynamicImport(referencingScriptOrModule, moduleRequest, promiseCapability, promise),
// where promise is a Promise rejected with an error representing the cause of failure.
auto* promise = Promise::create(global_object);
auto* promise = Promise::create(realm);
ScopeGuard finish_dynamic_import = [&] {
host_finish_dynamic_import(referencing_script_or_module, move(module_request), promise_capability, promise);
@ -983,7 +986,7 @@ void VM::import_module_dynamically(ScriptOrModule referencing_script_or_module,
// If there is no ScriptOrModule in any of the execution contexts
if (referencing_script_or_module.has<Empty>()) {
// Throw an error for now
promise->reject(InternalError::create(global_object, String::formatted(ErrorType::ModuleNotFoundNoReferencingScript.message(), module_request.module_specifier)));
promise->reject(InternalError::create(realm, String::formatted(ErrorType::ModuleNotFoundNoReferencingScript.message(), module_request.module_specifier)));
return;
}
}
@ -1015,6 +1018,8 @@ void VM::finish_dynamic_import(ScriptOrModule referencing_script_or_module, Modu
{
dbgln_if(JS_MODULE_DEBUG, "[JS MODULE] finish_dynamic_import on {}", module_request.module_specifier);
auto& realm = *current_realm();
// 1. Let fulfilledClosure be a new Abstract Closure with parameters (result) that captures referencingScriptOrModule, specifier, and promiseCapability and performs the following steps when called:
auto fulfilled_closure = [referencing_script_or_module, module_request = move(module_request), resolve_function = make_handle(promise_capability.resolve), reject_function = make_handle(promise_capability.reject)](VM& vm, GlobalObject& global_object) -> ThrowCompletionOr<Value> {
auto result = vm.argument(0);
@ -1045,7 +1050,7 @@ void VM::finish_dynamic_import(ScriptOrModule referencing_script_or_module, Modu
};
// 2. Let onFulfilled be CreateBuiltinFunction(fulfilledClosure, 0, "", « »).
auto* on_fulfilled = NativeFunction::create(current_realm()->global_object(), move(fulfilled_closure), 0, "");
auto* on_fulfilled = NativeFunction::create(realm, move(fulfilled_closure), 0, "");
// 3. Let rejectedClosure be a new Abstract Closure with parameters (error) that captures promiseCapability and performs the following steps when called:
auto rejected_closure = [rejected_function = make_handle(promise_capability.reject)](VM& vm, GlobalObject& global_object) -> ThrowCompletionOr<Value> {
@ -1059,7 +1064,7 @@ void VM::finish_dynamic_import(ScriptOrModule referencing_script_or_module, Modu
};
// 4. Let onRejected be CreateBuiltinFunction(rejectedClosure, 0, "", « »).
auto* on_rejected = NativeFunction::create(current_realm()->global_object(), move(rejected_closure), 0, "");
auto* on_rejected = NativeFunction::create(realm, move(rejected_closure), 0, "");
// 5. Perform PerformPromiseThen(innerPromise, onFulfilled, onRejected).
inner_promise->perform_then(on_fulfilled, on_rejected, {});