39 lines
1.2 KiB
JavaScript
39 lines
1.2 KiB
JavaScript
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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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