node/tools/node_modules/eslint/lib/code-path-analysis/id-generator.js
Michaël Zasso 3dc3063275 tools: move eslint from tools to tools/node_modules
This is required because we need to add the babel-eslint dependency
and it has to be able to resolve "eslint".
babel-eslint is required to support future ES features such as async
iterators and import.meta.

Refs: https://github.com/nodejs/node/pull/17755
PR-URL: https://github.com/nodejs/node/pull/17820
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
2018-01-11 09:48:05 +01:00

47 lines
959 B
JavaScript

/**
* @fileoverview A class of identifiers generator for code path segments.
*
* Each rule uses the identifier of code path segments to store additional
* information of the code path.
*
* @author Toru Nagashima
*/
"use strict";
//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------
/**
* A generator for unique ids.
*/
class IdGenerator {
/**
* @param {string} prefix - Optional. A prefix of generated ids.
*/
constructor(prefix) {
this.prefix = String(prefix);
this.n = 0;
}
/**
* Generates id.
*
* @returns {string} A generated id.
*/
next() {
this.n = 1 + this.n | 0;
/* istanbul ignore if */
if (this.n < 0) {
this.n = 1;
}
return this.prefix + this.n;
}
}
module.exports = IdGenerator;