mirror of
https://github.com/RGBCube/serenity
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e992a9f469
This is a continuation of the previous three commits. Now that create() receives the allocating realm, we can simply forward that to allocate(), which accounts for the majority of these changes. Additionally, we can get rid of the realm_from_global_object() in one place, with one more remaining in VM::throw_completion().
97 lines
6.1 KiB
C++
97 lines
6.1 KiB
C++
/*
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* Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/StringView.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/JobCallback.h>
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#include <LibJS/Runtime/VM.h>
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namespace JS {
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// 27.2.1.1 PromiseCapability Records, https://tc39.es/ecma262/#sec-promisecapability-records
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struct PromiseCapability {
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Object* promise { nullptr };
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FunctionObject* resolve { nullptr };
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FunctionObject* reject { nullptr };
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};
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// 27.2.1.1.1 IfAbruptRejectPromise ( value, capability ), https://tc39.es/ecma262/#sec-ifabruptrejectpromise
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#define __TRY_OR_REJECT(global_object, capability, expression, CALL_CHECK) \
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({ \
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auto _temporary_try_or_reject_result = (expression); \
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/* 1. If value is an abrupt completion, then */ \
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if (_temporary_try_or_reject_result.is_error()) { \
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/* a. Perform ? Call(capability.[[Reject]], undefined, « value.[[Value]] »). */ \
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CALL_CHECK(JS::call(global_object, *capability.reject, js_undefined(), *_temporary_try_or_reject_result.release_error().value())); \
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\
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/* b. Return capability.[[Promise]]. */ \
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return capability.promise; \
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} \
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\
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/* 2. Else if value is a Completion Record, set value to value.[[Value]]. */ \
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_temporary_try_or_reject_result.release_value(); \
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})
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#define TRY_OR_REJECT(global_object, capability, expression) \
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__TRY_OR_REJECT(global_object, capability, expression, TRY)
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#define TRY_OR_MUST_REJECT(global_object, capability, expression) \
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__TRY_OR_REJECT(global_object, capability, expression, MUST)
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// 27.2.1.1.1 IfAbruptRejectPromise ( value, capability ), https://tc39.es/ecma262/#sec-ifabruptrejectpromise
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#define TRY_OR_REJECT_WITH_VALUE(global_object, capability, expression) \
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({ \
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auto _temporary_try_or_reject_result = (expression); \
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/* 1. If value is an abrupt completion, then */ \
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if (_temporary_try_or_reject_result.is_error()) { \
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/* a. Perform ? Call(capability.[[Reject]], undefined, « value.[[Value]] »). */ \
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TRY(JS::call(global_object, *capability.reject, js_undefined(), *_temporary_try_or_reject_result.release_error().value())); \
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\
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/* b. Return capability.[[Promise]]. */ \
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return Value { capability.promise }; \
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} \
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\
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/* 2. Else if value is a Completion Record, set value to value.[[Value]]. */ \
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_temporary_try_or_reject_result.release_value(); \
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})
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// 27.2.1.5 NewPromiseCapability ( C ), https://tc39.es/ecma262/#sec-newpromisecapability
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ThrowCompletionOr<PromiseCapability> new_promise_capability(GlobalObject& global_object, Value constructor);
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// 27.2.1.2 PromiseReaction Records, https://tc39.es/ecma262/#sec-promisereaction-records
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class PromiseReaction final : public Cell {
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public:
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enum class Type {
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Fulfill,
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Reject,
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};
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static PromiseReaction* create(VM& vm, Type type, Optional<PromiseCapability> capability, Optional<JobCallback> handler)
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{
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return vm.heap().allocate_without_realm<PromiseReaction>(type, capability, move(handler));
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}
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PromiseReaction(Type type, Optional<PromiseCapability> capability, Optional<JobCallback> handler);
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virtual ~PromiseReaction() = default;
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Type type() const { return m_type; }
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Optional<PromiseCapability> const& capability() const { return m_capability; }
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Optional<JobCallback>& handler() { return m_handler; }
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Optional<JobCallback> const& handler() const { return m_handler; }
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private:
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virtual StringView class_name() const override { return "PromiseReaction"sv; }
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virtual void visit_edges(Visitor&) override;
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Type m_type;
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Optional<PromiseCapability> m_capability;
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Optional<JobCallback> m_handler;
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};
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}
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