mirror of
https://github.com/nodejs/node.git
synced 2025-05-19 00:19:36 +00:00
f9dd34d301
PR-URL: https://github.com/iojs/io.js/pull/1539 Fixes: https://github.com/iojs/io.js/issues/1253 Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com> Reviewed-By: Trevor Norris <trev.norris@gmail.com> Reviewed-By: Roman Reiss <me@silverwind.io> Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com> Reviewed-By: Johan Bergström <bugs@bergstroem.nu> Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
84 lines
2.5 KiB
JavaScript
84 lines
2.5 KiB
JavaScript
/**
|
|
* @fileoverview A rule to set the maximum depth block can be nested in a function.
|
|
* @author Ian Christian Myers
|
|
* @copyright 2013 Ian Christian Myers. All rights reserved.
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Rule Definition
|
|
//------------------------------------------------------------------------------
|
|
|
|
module.exports = function(context) {
|
|
|
|
//--------------------------------------------------------------------------
|
|
// Helpers
|
|
//--------------------------------------------------------------------------
|
|
|
|
var functionStack = [],
|
|
maxDepth = context.options[0] || 4;
|
|
|
|
function startFunction() {
|
|
functionStack.push(0);
|
|
}
|
|
|
|
function endFunction() {
|
|
functionStack.pop();
|
|
}
|
|
|
|
function pushBlock(node) {
|
|
var len = ++functionStack[functionStack.length - 1];
|
|
|
|
if (len > maxDepth) {
|
|
context.report(node, "Blocks are nested too deeply ({{depth}}).",
|
|
{ depth: len });
|
|
}
|
|
}
|
|
|
|
function popBlock() {
|
|
functionStack[functionStack.length - 1]--;
|
|
}
|
|
|
|
//--------------------------------------------------------------------------
|
|
// Public API
|
|
//--------------------------------------------------------------------------
|
|
|
|
return {
|
|
"Program": startFunction,
|
|
"FunctionDeclaration": startFunction,
|
|
"FunctionExpression": startFunction,
|
|
"ArrowFunctionExpression": startFunction,
|
|
|
|
"IfStatement": function(node) {
|
|
if (node.parent.type !== "IfStatement") {
|
|
pushBlock(node);
|
|
}
|
|
},
|
|
"SwitchStatement": pushBlock,
|
|
"TryStatement": pushBlock,
|
|
"DoWhileStatement": pushBlock,
|
|
"WhileStatement": pushBlock,
|
|
"WithStatement": pushBlock,
|
|
"ForStatement": pushBlock,
|
|
"ForInStatement": pushBlock,
|
|
"ForOfStatement": pushBlock,
|
|
|
|
"IfStatement:exit": popBlock,
|
|
"SwitchStatement:exit": popBlock,
|
|
"TryStatement:exit": popBlock,
|
|
"DoWhileStatement:exit": popBlock,
|
|
"WhileStatement:exit": popBlock,
|
|
"WithStatement:exit": popBlock,
|
|
"ForStatement:exit": popBlock,
|
|
"ForInStatement:exit": popBlock,
|
|
"ForOfStatement:exit": popBlock,
|
|
|
|
"FunctionDeclaration:exit": endFunction,
|
|
"FunctionExpression:exit": endFunction,
|
|
"ArrowFunctionExpression:exit": endFunction,
|
|
"Program:exit": endFunction
|
|
};
|
|
|
|
};
|