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LibJS: Convert Promise.prototype to be a PrototypeObject

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Timothy Flynn 2021-09-11 13:55:16 -04:00 committed by Andreas Kling
parent b749194e70
commit a41d0d23f9
Notes: sideshowbarker 2024-07-18 04:13:42 +09:00 
Author: https://github.com/trflynn89
Commit: https://github.com/SerenityOS/serenity/commit/a41d0d23f94
Pull-request: https://github.com/SerenityOS/serenity/pull/9973
Reviewed-by: https://github.com/linusg ✅
2 changed files with 5 additions and 17 deletions
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16
Userland/Libraries/LibJS/Runtime/PromisePrototype.cpp
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@ -17,7 +17,7 @@
namespace JS {
PromisePrototype::PromisePrototype(GlobalObject& global_object)
: Object(*global_object.object_prototype())
: PrototypeObject(*global_object.object_prototype())
{
}
@ -35,22 +35,10 @@ void PromisePrototype::initialize(GlobalObject& global_object)
define_direct_property(*vm.well_known_symbol_to_string_tag(), js_string(vm, vm.names.Promise.as_string()), Attribute::Configurable);
}
static Promise* promise_from(VM& vm, GlobalObject& global_object)
{
auto* this_object = vm.this_value(global_object).to_object(global_object);
if (!this_object)
return nullptr;
if (!is<Promise>(this_object)) {
vm.throw_exception<TypeError>(global_object, ErrorType::NotAnObjectOfType, vm.names.Promise);
return nullptr;
}
return static_cast<Promise*>(this_object);
}
// 27.2.5.4 Promise.prototype.then ( onFulfilled, onRejected ), https://tc39.es/ecma262/#sec-promise.prototype.then
JS_DEFINE_NATIVE_FUNCTION(PromisePrototype::then)
{
auto* promise = promise_from(vm, global_object);
auto* promise = typed_this_object(global_object);
if (!promise)
return {};
auto on_fulfilled = vm.argument(0);

6
Userland/Libraries/LibJS/Runtime/PromisePrototype.h
View File

@ -6,12 +6,12 @@
#pragma once
#include <LibJS/Runtime/Object.h>
#include <LibJS/Runtime/PrototypeObject.h>
namespace JS {
class PromisePrototype final : public Object {
JS_OBJECT(PromisePrototype, Object);
class PromisePrototype final : public PrototypeObject<PromisePrototype, Promise> {
JS_PROTOTYPE_OBJECT(PromisePrototype, Promise, Promise);
public:
PromisePrototype(GlobalObject&);