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78 lines
2.5 KiB
JavaScript
78 lines
2.5 KiB
JavaScript
/*
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* Copyright (C) 2016 Yusuke Suzuki <utatane.tea@gmail.com>.
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* Copyright (C) 2017 Caio Lima <ticaiolima@gmail.com>.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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// @internal
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@globalPrivate
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function toInteger(target)
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{
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"use strict";
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var numberValue = +target;
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// isNaN(numberValue)
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if (numberValue !== numberValue)
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return 0;
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return @trunc(numberValue);
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}
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@globalPrivate
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function toLength(target)
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{
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"use strict";
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var length = @toInteger(target);
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// originally Math.min(Math.max(length, 0), maxSafeInteger));
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return +(length > 0 ? (length < @MAX_SAFE_INTEGER ? length : @MAX_SAFE_INTEGER) : 0);
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}
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@globalPrivate
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@getter
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@overriddenName="get [Symbol.species]"
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function speciesGetter()
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{
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"use strict";
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return this;
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}
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@globalPrivate
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function speciesConstructor(obj, defaultConstructor)
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{
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"use strict";
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var constructor = obj.constructor;
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if (constructor === @undefined)
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return defaultConstructor;
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if (!@isObject(constructor))
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@throwTypeError("|this|.constructor is not an Object or undefined");
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constructor = constructor.@@species;
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if (@isUndefinedOrNull(constructor))
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return defaultConstructor;
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if (@isConstructor(constructor))
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return constructor;
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@throwTypeError("|this|.constructor[Symbol.species] is not a constructor");
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}
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