mirror of https://github.com/lukechilds/node.git
Browse Source
PR-URL: https://github.com/nodejs/node/pull/8296 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Roman Reiss <me@silverwind.io>v7.x
Rich Trott
8 years ago
303 changed files with 2227 additions and 2058 deletions
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#!/usr/bin/env node
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/** |
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* @fileoverview Main CLI that is run via the eslint command. |
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* @author Nicholas C. Zakas |
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*/ |
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"use strict"; |
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//------------------------------------------------------------------------------
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// Helpers
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//------------------------------------------------------------------------------
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var useStdIn = (process.argv.indexOf("--stdin") > -1), |
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init = (process.argv.indexOf("--init") > -1), |
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debug = (process.argv.indexOf("--debug") > -1); |
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// must do this initialization *before* other requires in order to work
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if (debug) { |
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require("debug").enable("eslint:*,-eslint:code-path"); |
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} |
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//------------------------------------------------------------------------------
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// Requirements
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//------------------------------------------------------------------------------
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// now we can safely include the other modules that use debug
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var concat = require("concat-stream"), |
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cli = require("../lib/cli"), |
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path = require("path"), |
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fs = require("fs"); |
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//------------------------------------------------------------------------------
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// Execution
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//------------------------------------------------------------------------------
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process.on("uncaughtException", function(err){ |
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// lazy load
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var lodash = require("lodash"); |
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if (typeof err.messageTemplate === "string" && err.messageTemplate.length > 0) { |
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var template = lodash.template(fs.readFileSync(path.resolve(__dirname, "../messages/" + err.messageTemplate + ".txt"), "utf-8")); |
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console.log("\nOops! Something went wrong! :("); |
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console.log("\n" + template(err.messageData || {})); |
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} else { |
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console.log(err.message); |
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console.log(err.stack); |
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} |
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process.exit(1); |
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}); |
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if (useStdIn) { |
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process.stdin.pipe(concat({ encoding: "string" }, function(text) { |
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try { |
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process.exitCode = cli.execute(process.argv, text); |
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} catch (ex) { |
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console.error(ex.message); |
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console.error(ex.stack); |
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process.exitCode = 1; |
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} |
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})); |
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} else if (init) { |
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var configInit = require("../lib/config/config-initializer"); |
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configInit.initializeConfig(function(err) { |
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if (err) { |
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process.exitCode = 1; |
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console.error(err.message); |
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console.error(err.stack); |
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} else { |
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process.exitCode = 0; |
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} |
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}); |
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} else { |
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process.exitCode = cli.execute(process.argv); |
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} |
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@ -0,0 +1,80 @@ |
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/** |
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* @fileoverview Rule to enforce that all class methods use 'this'. |
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* @author Patrick Williams |
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*/ |
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"use strict"; |
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//------------------------------------------------------------------------------
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// Rule Definition
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//------------------------------------------------------------------------------
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module.exports = { |
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meta: { |
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docs: { |
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description: "enforce that class methods utilize `this`", |
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category: "Best Practices", |
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recommended: false |
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}, |
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schema: [] |
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}, |
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create(context) { |
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const stack = []; |
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/** |
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* Initializes the current context to false and pushes it onto the stack. |
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* These booleans represent whether 'this' has been used in the context. |
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* @returns {void} |
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* @private |
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*/ |
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function enterFunction() { |
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stack.push(false); |
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} |
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/** |
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* Check if the node is an instance method |
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* @param {ASTNode} node - node to check |
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* @returns {boolean} True if its an instance method |
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* @private |
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*/ |
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function isInstanceMethod(node) { |
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return !node.static && node.kind !== "constructor" && node.type === "MethodDefinition"; |
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} |
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/** |
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* Checks if we are leaving a function that is a method, and reports if 'this' has not been used. |
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* Static methods and the constructor are exempt. |
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* Then pops the context off the stack. |
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* @param {ASTNode} node - A function node that was entered. |
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* @returns {void} |
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* @private |
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*/ |
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function exitFunction(node) { |
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const methodUsesThis = stack.pop(); |
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if (isInstanceMethod(node.parent) && !methodUsesThis) { |
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context.report(node, "Expected 'this' to be used by class method '" + node.parent.key.name + "'."); |
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} |
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} |
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/** |
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* Mark the current context as having used 'this'. |
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* @returns {void} |
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* @private |
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*/ |
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function markThisUsed() { |
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if (stack.length) { |
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stack[stack.length - 1] = true; |
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} |
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} |
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return { |
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FunctionDeclaration: enterFunction, |
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"FunctionDeclaration:exit": exitFunction, |
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FunctionExpression: enterFunction, |
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"FunctionExpression:exit": exitFunction, |
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ThisExpression: markThisUsed, |
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Super: markThisUsed |
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}; |
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} |
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}; |
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