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LibJS: Remove GlobalObject from VM::throw_completion()

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This is a continuation of the previous five commits.

A first big step into the direction of no longer having to pass a realm
(or currently, a global object) trough layers upon layers of AOs!
Unlike the create() APIs we can safely assume that this is only ever
called when a running execution context and therefore current realm
exists. If not, you can always manually allocate the Error and put it in
a Completion :^)

In the spec, throw exceptions implicitly use the current realm's
intrinsics as well: https://tc39.es/ecma262/#sec-throw-an-exception
This commit is contained in:
Linus Groh 2022-08-16 20:33:17 +01:00
parent 5398dcc55e
commit f3117d46dc
165 changed files with 892 additions and 900 deletions
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12
Userland/Libraries/LibJS/Runtime/PromiseReaction.cpp
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@ -19,7 +19,7 @@ ThrowCompletionOr<PromiseCapability> new_promise_capability(GlobalObject& global
// 1. If IsConstructor(C) is false, throw a TypeError exception.
if (!constructor.is_constructor())
return vm.throw_completion<TypeError>(global_object, ErrorType::NotAConstructor, constructor.to_string_without_side_effects());
return vm.throw_completion<TypeError>(ErrorType::NotAConstructor, constructor.to_string_without_side_effects());
// 2. NOTE: C is assumed to be a constructor function that supports the parameter conventions of the Promise constructor (see 27.2.3.1).
@ -32,18 +32,18 @@ ThrowCompletionOr<PromiseCapability> new_promise_capability(GlobalObject& global
} promise_capability_functions;
// 4. Let executorClosure be a new Abstract Closure with parameters (resolve, reject) that captures promiseCapability and performs the following steps when called:
auto executor_closure = [&promise_capability_functions](auto& vm, auto& global_object) -> ThrowCompletionOr<Value> {
auto executor_closure = [&promise_capability_functions](auto& vm, auto&) -> ThrowCompletionOr<Value> {
auto resolve = vm.argument(0);
auto reject = vm.argument(1);
// No idea what other engines say here.
// a. If promiseCapability.[[Resolve]] is not undefined, throw a TypeError exception.
if (!promise_capability_functions.resolve.is_undefined())
return vm.template throw_completion<TypeError>(global_object, ErrorType::GetCapabilitiesExecutorCalledMultipleTimes);
return vm.template throw_completion<TypeError>(ErrorType::GetCapabilitiesExecutorCalledMultipleTimes);
// b. If promiseCapability.[[Reject]] is not undefined, throw a TypeError exception.
if (!promise_capability_functions.reject.is_undefined())
return vm.template throw_completion<TypeError>(global_object, ErrorType::GetCapabilitiesExecutorCalledMultipleTimes);
return vm.template throw_completion<TypeError>(ErrorType::GetCapabilitiesExecutorCalledMultipleTimes);
// c. Set promiseCapability.[[Resolve]] to resolve.
promise_capability_functions.resolve = resolve;
@ -63,11 +63,11 @@ ThrowCompletionOr<PromiseCapability> new_promise_capability(GlobalObject& global
// 7. If IsCallable(promiseCapability.[[Resolve]]) is false, throw a TypeError exception.
if (!promise_capability_functions.resolve.is_function())
return vm.throw_completion<TypeError>(global_object, ErrorType::NotAFunction, promise_capability_functions.resolve.to_string_without_side_effects());
return vm.throw_completion<TypeError>(ErrorType::NotAFunction, promise_capability_functions.resolve.to_string_without_side_effects());
// 8. If IsCallable(promiseCapability.[[Reject]]) is false, throw a TypeError exception.
if (!promise_capability_functions.reject.is_function())
return vm.throw_completion<TypeError>(global_object, ErrorType::NotAFunction, promise_capability_functions.reject.to_string_without_side_effects());
return vm.throw_completion<TypeError>(ErrorType::NotAFunction, promise_capability_functions.reject.to_string_without_side_effects());
// 9. Set promiseCapability.[[Promise]] to promise.
// 10. Return promiseCapability.