darling-JavaScriptCore/builtins/StringConstructor.js
2020-08-29 15:28:47 -04:00

56 lines
2.1 KiB
JavaScript

/*
* Copyright (C) 2015 Yusuke Suzuki <utatane.tea@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.
*/
function raw(template)
{
"use strict";
var cookedSegments = @toObject(template, "String.raw requires template not be null or undefined");
var rawSegments = @toObject(cookedSegments.raw, "String.raw requires template.raw not be null or undefined");
var numberOfSubstitutions = arguments.length - 1;
var segmentCount = @toLength(rawSegments.length);
if (segmentCount <= 0)
return '';
var stringElements = '';
for (var i = 0; ; ++i) {
var segment = @toString(rawSegments[i]);
stringElements += segment;
if ((i + 1) === segmentCount)
return stringElements;
if (i < numberOfSubstitutions) {
var substitutionIndexInArguments = i + 1;
var next = @toString(arguments[substitutionIndexInArguments]);
stringElements += next;
}
}
}