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/**
* @fileoverview Define the cursor which limits the number of tokens.
* @author Toru Nagashima
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const DecorativeCursor = require("./decorative-cursor");
//------------------------------------------------------------------------------
// Exports
//------------------------------------------------------------------------------
/**
* The decorative cursor which limits the number of tokens.
*/
module.exports = class LimitCursor extends DecorativeCursor {
/**
* Initializes this cursor.
* @param {Cursor} cursor The cursor to be decorated.
* @param {number} count The count of tokens this cursor iterates.
*/
constructor(cursor, count) {
super(cursor);
this.count = count;
}
/** @inheritdoc */
moveNext() {
if (this.count > 0) {
this.count -= 1;
return super.moveNext();
}
return false;
}
};
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