exceljs
Version:
Excel Workbook Manager - Read and Write xlsx and csv Files.
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JavaScript
/**
* Copyright (c) 2015 Guyon Roche
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
;
var TypedStack = module.exports = function(type) {
this._type = type;
this._stack = [];
};
TypedStack.prototype = {
get size() {
return this._stack.length;
},
pop: function() {
var tos = this._stack.pop();
return tos || new (this._type)();
},
push: function(instance) {
if (!(instance instanceof this._type)) {
throw new Error("Invalid type pushed to TypedStack");
}
this._stack.push(instance);
}
};