nodejs/deps/node-inspect/tools/eslint-rules/no-let-in-for-declaration.js
Jan Krems 8c9762e150
deps: add node-inspect 1.10.2
Squashed from:

- deps: Add node-inspect 1.10.1

This adds a reimplementation of the old CLI debugger (`node debug`)
against the new debugger protocol (`node --inspect`). This is necessary
because the old protocol won't be supported in future versions of V8.

- deps: Update node-inspect to 1.10.2

Starting with 1.10.2 the test suite should pass consistently on
windows.

- deps: Update to node-inspect 1.10.4

PR-URL: https://github.com/nodejs/node/pull/10187
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
2017-02-13 14:46:12 +01:00

47 lines
1.2 KiB
JavaScript

/**
* @fileoverview Prohibit the use of `let` as the loop variable
* in the initialization of for, and the left-hand
* iterator in forIn and forOf loops.
*
* @author Jessica Quynh Tran
*/
'use strict';
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = {
create(context) {
const msg = 'Use of `let` as the loop variable in a for-loop is ' +
'not recommended. Please use `var` instead.';
/**
* Report function to test if the for-loop is declared using `let`.
*/
function testForLoop(node) {
if (node.init && node.init.kind === 'let') {
context.report(node.init, msg);
}
}
/**
* Report function to test if the for-in or for-of loop
* is declared using `let`.
*/
function testForInOfLoop(node) {
if (node.left && node.left.kind === 'let') {
context.report(node.left, msg);
}
}
return {
'ForStatement': testForLoop,
'ForInStatement': testForInOfLoop,
'ForOfStatement': testForInOfLoop
};
}
};