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42 lines
1.2 KiB
JavaScript
42 lines
1.2 KiB
JavaScript
'use strict'
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/**
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* Create a range error with the message:
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* 'Index out of range (index < min)'
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* 'Index out of range (index < max)'
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*
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* @param {number} index The actual index
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* @param {number} [min=0] Minimum index (included)
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* @param {number} [max] Maximum index (excluded)
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* @extends RangeError
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*/
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export function IndexError (index, min, max) {
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if (!(this instanceof IndexError)) {
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throw new SyntaxError('Constructor must be called with the new operator')
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}
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this.index = index
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if (arguments.length < 3) {
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this.min = 0
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this.max = min
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} else {
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this.min = min
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this.max = max
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}
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if (this.min !== undefined && this.index < this.min) {
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this.message = 'Index out of range (' + this.index + ' < ' + this.min + ')'
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} else if (this.max !== undefined && this.index >= this.max) {
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this.message = 'Index out of range (' + this.index + ' > ' + (this.max - 1) + ')'
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} else {
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this.message = 'Index out of range (' + this.index + ')'
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}
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this.stack = (new Error()).stack
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}
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IndexError.prototype = new RangeError()
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IndexError.prototype.constructor = RangeError
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IndexError.prototype.name = 'IndexError'
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IndexError.prototype.isIndexError = true
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