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/**
* @fileoverview Define the cursor which iterates tokens only, with inflated range.
* @author Toru Nagashima
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const ForwardTokenCursor = require("./forward-token-cursor");
//------------------------------------------------------------------------------
// Exports
//------------------------------------------------------------------------------
/**
* The cursor which iterates tokens only, with inflated range.
* This is for the backward compatibility of padding options.
*/
module.exports = class PaddedTokenCursor extends ForwardTokenCursor {
/**
* Initializes this cursor.
* @param {Token[]} tokens - The array of tokens.
* @param {Comment[]} comments - The array of comments.
* @param {Object} indexMap - The map from locations to indices in `tokens`.
* @param {number} startLoc - The start location of the iteration range.
* @param {number} endLoc - The end location of the iteration range.
* @param {number} beforeCount - The number of tokens this cursor iterates before start.
* @param {number} afterCount - The number of tokens this cursor iterates after end.
*/
constructor(tokens, comments, indexMap, startLoc, endLoc, beforeCount, afterCount) {
super(tokens, comments, indexMap, startLoc, endLoc);
this.index = Math.max(0, this.index - beforeCount);
this.indexEnd = Math.min(tokens.length - 1, this.indexEnd + afterCount);
}
};
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