mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-10-19 23:53:20 +00:00
66 lines
4.7 KiB
C
66 lines
4.7 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
||
|
|
*/
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#include <AK/Forward.h>
|
||
|
|
#include <LibJS/Forward.h>
|
||
|
|
#include <LibJS/Runtime/AbstractOperations.h>
|
||
|
|
|
||
|
|
namespace JS {
|
||
|
|
|
||
|
|
// 27.2.1.1 PromiseCapability Records, https://tc39.es/ecma262/#sec-promisecapability-records
|
||
|
|
struct PromiseCapability {
|
||
|
|
Object* promise { nullptr };
|
||
|
|
FunctionObject* resolve { nullptr };
|
||
|
|
FunctionObject* reject { nullptr };
|
||
|
|
};
|
||
|
|
|
||
|
|
// 27.2.1.1.1 IfAbruptRejectPromise ( value, capability ), https://tc39.es/ecma262/#sec-ifabruptrejectpromise
|
||
|
|
#define __TRY_OR_REJECT(vm, capability, expression, CALL_CHECK) \
|
||
|
|
({ \
|
||
|
|
auto _temporary_try_or_reject_result = (expression); \
|
||
|
|
/* 1. If value is an abrupt completion, then */ \
|
||
|
|
if (_temporary_try_or_reject_result.is_error()) { \
|
||
|
|
/* a. Perform ? Call(capability.[[Reject]], undefined, « value.[[Value]] »). */ \
|
||
|
|
CALL_CHECK(JS::call(vm, *capability.reject, js_undefined(), *_temporary_try_or_reject_result.release_error().value())); \
|
||
|
|
\
|
||
|
|
/* b. Return capability.[[Promise]]. */ \
|
||
|
|
return capability.promise; \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
/* 2. Else if value is a Completion Record, set value to value.[[Value]]. */ \
|
||
|
|
_temporary_try_or_reject_result.release_value(); \
|
||
|
|
})
|
||
|
|
|
||
|
|
#define TRY_OR_REJECT(vm, capability, expression) \
|
||
|
|
__TRY_OR_REJECT(vm, capability, expression, TRY)
|
||
|
|
|
||
|
|
#define TRY_OR_MUST_REJECT(vm, capability, expression) \
|
||
|
|
__TRY_OR_REJECT(vm, capability, expression, MUST)
|
||
|
|
|
||
|
|
// 27.2.1.1.1 IfAbruptRejectPromise ( value, capability ), https://tc39.es/ecma262/#sec-ifabruptrejectpromise
|
||
|
|
#define TRY_OR_REJECT_WITH_VALUE(vm, capability, expression) \
|
||
|
|
({ \
|
||
|
|
auto _temporary_try_or_reject_result = (expression); \
|
||
|
|
/* 1. If value is an abrupt completion, then */ \
|
||
|
|
if (_temporary_try_or_reject_result.is_error()) { \
|
||
|
|
/* a. Perform ? Call(capability.[[Reject]], undefined, « value.[[Value]] »). */ \
|
||
|
|
TRY(JS::call(vm, *capability.reject, js_undefined(), *_temporary_try_or_reject_result.release_error().value())); \
|
||
|
|
\
|
||
|
|
/* b. Return capability.[[Promise]]. */ \
|
||
|
|
return Value { capability.promise }; \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
/* 2. Else if value is a Completion Record, set value to value.[[Value]]. */ \
|
||
|
|
_temporary_try_or_reject_result.release_value(); \
|
||
|
|
})
|
||
|
|
|
||
|
|
// 27.2.1.5 NewPromiseCapability ( C ), https://tc39.es/ecma262/#sec-newpromisecapability
|
||
|
|
ThrowCompletionOr<PromiseCapability> new_promise_capability(VM& vm, Value constructor);
|
||
|
|
|
||
|
|
}
|