blob: 58c19b3828328c3bc357f5eb79535542575d50b7 [file] [log] [blame]
/*
* Copyright (C) 2016 Yusuke Suzuki <utatane.tea@gmail.com>.
* Copyright (C) 2017 Caio Lima <ticaiolima@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.
*/
// @internal
@globalPrivate
function toInteger(target)
{
"use strict";
var numberValue = +target;
// isNaN(numberValue)
if (numberValue !== numberValue)
return 0;
return @trunc(numberValue);
}
@globalPrivate
function toLength(target)
{
"use strict";
var length = @toInteger(target);
// originally Math.min(Math.max(length, 0), maxSafeInteger));
return +(length > 0 ? (length < @MAX_SAFE_INTEGER ? length : @MAX_SAFE_INTEGER) : 0);
}
@globalPrivate
function isDictionary(object)
{
"use strict";
return object == null || typeof object === "object";
}
@globalPrivate
@getter
@overriddenName="get [Symbol.species]"
function speciesGetter()
{
"use strict";
return this;
}
@globalPrivate
function speciesConstructor(obj, defaultConstructor)
{
"use strict";
var constructor = obj.constructor;
if (constructor === @undefined)
return defaultConstructor;
if (!@isObject(constructor))
@throwTypeError("|this|.constructor is not an Object or undefined");
constructor = constructor.@speciesSymbol;
if (@isUndefinedOrNull(constructor))
return defaultConstructor;
if (@isConstructor(constructor))
return constructor;
@throwTypeError("|this|.constructor[Symbol.species] is not a constructor");
}
@globalPrivate
function copyDataProperties(target, source, excludedSet)
{
"use strict";
if (!@isObject(target))
@throwTypeError("target needs to be an object");
if (@isUndefinedOrNull(source))
return target;
var from = @toObject(source);
var keys = @ownKeys(from);
var keysLength = keys.length;
for (var i = 0; i < keysLength; i++) {
var nextKey = keys[i];
if (!excludedSet.@has(nextKey)) {
if (@propertyIsEnumerable(from, nextKey)) {
var propValue = from[nextKey];
@defineEnumerableWritableConfigurableDataProperty(target, nextKey, propValue);
}
}
}
return target;
}
@globalPrivate
function copyDataPropertiesNoExclusions(target, source)
{
"use strict";
if (!@isObject(target))
@throwTypeError("target needs to be an object");
if (@isUndefinedOrNull(source))
return target;
var from = @toObject(source);
var keys = @ownKeys(from);
var keysLength = keys.length;
for (var i = 0; i < keysLength; i++) {
var nextKey = keys[i];
if (@propertyIsEnumerable(from, nextKey)) {
var propValue = from[nextKey];
@defineEnumerableWritableConfigurableDataProperty(target, nextKey, propValue);
}
}
return target;
}