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181 lines (145 loc) · 7.4 KB
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/*
* Copyright (C) 2025 Sosuke Suzuki <aosukeke@gmail.com>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// https://tc39.es/proposal-explicit-resource-management/#sec-asyncdisposablestack.prototype.adopt
function adopt(value, onAsyncDispose)
{
'use strict';
if (!@isAsyncDisposableStack(this))
@throwTypeError("AsyncDisposableStack.prototype.adopt requires that |this| be a AsyncDisposableStack object");
if (@getAsyncDisposableStackInternalField(this, @asyncDisposableStackFieldState) === @AsyncDisposableStackStateDisposed)
throw new @ReferenceError("AsyncDisposableStack.prototype.adopt requires that |this| be a pending AsyncDisposableStack object");
if (!@isCallable(onAsyncDispose))
@throwTypeError("AsyncDisposableStack.prototype.adopt requires that onAsyncDispose argument be a callable");
var closure = () => onAsyncDispose.@call(@undefined, value);
@addDisposableResource(@getAsyncDisposableStackInternalField(this, @asyncDisposableStackFieldCapability), @undefined, /* isAsync */ true, closure);
return value;
}
// https://tc39.es/proposal-explicit-resource-management/#sec-asyncdisposablestack.prototype.defer
@overriddenName="defer"
function deferMethod(onAsyncDispose)
{
'use strict';
if (!@isAsyncDisposableStack(this))
@throwTypeError("AsyncDisposableStack.prototype.defer requires that |this| be a AsyncDisposableStack object");
if (@getAsyncDisposableStackInternalField(this, @asyncDisposableStackFieldState) === @AsyncDisposableStackStateDisposed)
throw new @ReferenceError("AsyncDisposableStack.prototype.defer requires that |this| be a pending AsyncDisposableStack object");
if (!@isCallable(onAsyncDispose))
@throwTypeError("AsyncDisposableStack.prototype.defer requires that onAsyncDispose argument be a callable");
@addDisposableResource(@getAsyncDisposableStackInternalField(this, @asyncDisposableStackFieldCapability), @undefined, /* isAsync */ true, onAsyncDispose);
return @undefined;
}
// https://tc39.es/proposal-explicit-resource-management/#sec-asyncdisposablestack.prototype.disposeAsync
function disposeAsync()
{
'use strict';
var promise = @newPromise();
if (!@isAsyncDisposableStack(this)) {
@rejectPromiseWithFirstResolvingFunctionCallCheck(promise, @makeTypeError("AsyncDisposableStack.prototype.disposeAsync requires that |this| be a AsyncDisposableStack object"));
return promise;
}
if (@getAsyncDisposableStackInternalField(this, @asyncDisposableStackFieldState) === @AsyncDisposableStackStateDisposed) {
@resolvePromiseWithFirstResolvingFunctionCallCheck(promise, @undefined);
return promise;
}
@putAsyncDisposableStackInternalField(this, @asyncDisposableStackFieldState, @AsyncDisposableStackStateDisposed);
var stack = @getAsyncDisposableStackInternalField(this, @asyncDisposableStackFieldCapability);
@assert(@isArray(stack));
var i = stack.length;
var thrown = false;
var suppressed;
var needsAwait = false;
var hasAwaited = false;
var handleError = (result) => {
if (thrown)
suppressed = new @SuppressedError(result, suppressed);
else {
thrown = true;
suppressed = result;
}
loop();
};
var finish = () => {
if (thrown)
@rejectPromiseWithFirstResolvingFunctionCallCheck(promise, suppressed);
else
@resolvePromiseWithFirstResolvingFunctionCallCheck(promise, @undefined);
};
var loop = () => {
while (i) {
var resource = stack[--i];
if (resource.method === @undefined) {
needsAwait = true;
continue;
}
var result;
try {
result = resource.method.@call(resource.value);
} catch (error) {
if (thrown)
suppressed = new @SuppressedError(error, suppressed);
else {
thrown = true;
suppressed = error;
}
continue;
}
hasAwaited = true;
@promiseResolve(@Promise, result).@then(loop, handleError);
return;
}
if (needsAwait && !hasAwaited)
@promiseResolve(@Promise, @undefined).@then(finish, finish);
else
finish();
};
loop();
@putAsyncDisposableStackInternalField(this, @asyncDisposableStackFieldCapability, []);
return promise;
}
// https://tc39.es/proposal-explicit-resource-management/#sec-asyncdisposablestack.prototype.move
function move()
{
'use strict';
if (!@isAsyncDisposableStack(this))
@throwTypeError("AsyncDisposableStack.prototype.move requires that |this| be a AsyncDisposableStack object");
if (@getAsyncDisposableStackInternalField(this, @asyncDisposableStackFieldState) === @AsyncDisposableStackStateDisposed)
throw new @ReferenceError("AsyncDisposableStack.prototype.move requires that |this| be a pending AsyncDisposableStack object");
var newAsyncDisposableStack = new @AsyncDisposableStack();
@putAsyncDisposableStackInternalField(newAsyncDisposableStack, @asyncDisposableStackFieldCapability, @getAsyncDisposableStackInternalField(this, @asyncDisposableStackFieldCapability));
@putAsyncDisposableStackInternalField(this, @asyncDisposableStackFieldCapability, []);
@putAsyncDisposableStackInternalField(this, @asyncDisposableStackFieldState, @AsyncDisposableStackStateDisposed);
return newAsyncDisposableStack;
}
// https://tc39.es/proposal-explicit-resource-management/#sec-asyncdisposablestack.prototype.use
function use(value)
{
'use strict';
if (!@isAsyncDisposableStack(this))
@throwTypeError("AsyncDisposableStack.prototype.use requires that |this| be a AsyncDisposableStack object");
if (@getAsyncDisposableStackInternalField(this, @asyncDisposableStackFieldState) === @AsyncDisposableStackStateDisposed)
throw new @ReferenceError("AsyncDisposableStack.prototype.use requires that |this| be a pending AsyncDisposableStack object");
@addDisposableResource(@getAsyncDisposableStackInternalField(this, @asyncDisposableStackFieldCapability), value, /* isAsync */ true);
return value;
}