mathjs/lib/error/ArgumentsError.js

Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with dif

'use strict';

/**
 * Create a syntax error with the message:
 *     'Wrong number of arguments in function <fn> (<count> provided, <min>-<max> expected)'
 * @param {string} fn     Function name
 * @param {number} count  Actual argument count
 * @param {number} min    Minimum required argument count
 * @param {number} [max]  Maximum required argument count
 * @extends Error
 */
function ArgumentsError(fn, count, min, max) {
  if (!(this instanceof ArgumentsError)) {
    throw new SyntaxError('Constructor must be called with the new operator');
  }

  this.fn = fn;
  this.count = count;
  this.min = min;
  this.max = max;

  this.message = 'Wrong number of arguments in function ' + fn +
      ' (' + count + ' provided, ' +
      min + ((max != undefined) ? ('-' + max) : '') + ' expected)';

  this.stack = (new Error()).stack;
}

ArgumentsError.prototype = new Error();
ArgumentsError.prototype.constructor = Error;
ArgumentsError.prototype.name = 'ArgumentsError';
ArgumentsError.prototype.isArgumentsError = true;

module.exports = ArgumentsError;