.config/coc/extensions/node_modules/coc-prettier/node_modules/eslint/lib/source-code/token-store/filter-cursor.js

   1 /**
   2  * @fileoverview Define the cursor which ignores specified tokens.
   3  * @author Toru Nagashima
   4  */
   5 "use strict";
   6
   7 //------------------------------------------------------------------------------
   8 // Requirements
   9 //------------------------------------------------------------------------------
  10
  11 const DecorativeCursor = require("./decorative-cursor");
  12
  13 //------------------------------------------------------------------------------
  14 // Exports
  15 //------------------------------------------------------------------------------
  16
  17 /**
  18  * The decorative cursor which ignores specified tokens.
  19  */
  20 module.exports = class FilterCursor extends DecorativeCursor {
  21
  22     /**
  23      * Initializes this cursor.
  24      * @param {Cursor} cursor The cursor to be decorated.
  25      * @param {Function} predicate The predicate function to decide tokens this cursor iterates.
  26      */
  27     constructor(cursor, predicate) {
  28         super(cursor);
  29         this.predicate = predicate;
  30     }
  31
  32     /** @inheritdoc */
  33     moveNext() {
  34         const predicate = this.predicate;
  35
  36         while (super.moveNext()) {
  37             if (predicate(this.current)) {
  38                 return true;
  39             }
  40         }
  41         return false;
  42     }
  43 };