Add m-esr52 at 52.6.0

16 files changed, 1793 insertions, 0 deletions

diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/globals.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/globals.js
new file mode 100644
index 000000000..acbfa0684
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/globals.js
@@ -0,0 +1,188 @@
+/**
+ * @fileoverview functions for scanning an AST for globals including
+ *               traversing referenced scripts.
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+"use strict";
+
+const path = require("path");
+const fs = require("fs");
+const helpers = require("./helpers");
+const escope = require("escope");
+const estraverse = require("estraverse");
+
+/**
+ * Parses a list of "name:boolean_value" or/and "name" options divided by comma or
+ * whitespace.
+ *
+ * This function was copied from eslint.js
+ *
+ * @param {string} string The string to parse.
+ * @param {Comment} comment The comment node which has the string.
+ * @returns {Object} Result map object of names and boolean values
+ */
+function parseBooleanConfig(string, comment) {
+  let items = {};
+
+  // Collapse whitespace around : to make parsing easier
+  string = string.replace(/\s*:\s*/g, ":");
+  // Collapse whitespace around ,
+  string = string.replace(/\s*,\s*/g, ",");
+
+  string.split(/\s|,+/).forEach(function(name) {
+    if (!name) {
+      return;
+    }
+
+    let pos = name.indexOf(":");
+    let value = undefined;
+    if (pos !== -1) {
+      value = name.substring(pos + 1, name.length);
+      name = name.substring(0, pos);
+    }
+
+    items[name] = {
+      value: (value === "true"),
+      comment: comment
+    };
+  });
+
+  return items;
+}
+
+/**
+ * Global discovery can require parsing many files. This map of
+ * {String} => {Object} caches what globals were discovered for a file path.
+ */
+const globalCache = new Map();
+
+/**
+ * An object that returns found globals for given AST node types. Each prototype
+ * property should be named for a node type and accepts a node parameter and a
+ * parents parameter which is a list of the parent nodes of the current node.
+ * Each returns an array of globals found.
+ *
+ * @param  {String} path
+ *         The absolute path of the file being parsed.
+ */
+function GlobalsForNode(path) {
+  this.path = path;
+  this.root = helpers.getRootDir(path);
+}
+
+GlobalsForNode.prototype = {
+  BlockComment(node, parents) {
+    let value = node.value.trim();
+    let match = /^import-globals-from\s+(.+)$/.exec(value);
+    if (!match) {
+      return [];
+    }
+
+    let filePath = match[1].trim();
+
+    if (!path.isAbsolute(filePath)) {
+      let dirName = path.dirname(this.path);
+      filePath = path.resolve(dirName, filePath);
+    }
+
+    return module.exports.getGlobalsForFile(filePath);
+  },
+
+  ExpressionStatement(node, parents) {
+    let isGlobal = helpers.getIsGlobalScope(parents);
+    let names = helpers.convertExpressionToGlobals(node, isGlobal, this.root);
+    return names.map(name => { return { name, writable: true }});
+  },
+};
+
+module.exports = {
+  /**
+   * Returns all globals for a given file. Recursively searches through
+   * import-globals-from directives and also includes globals defined by
+   * standard eslint directives.
+   *
+   * @param  {String} path
+   *         The absolute path of the file to be parsed.
+   */
+  getGlobalsForFile(path) {
+    if (globalCache.has(path)) {
+      return globalCache.get(path);
+    }
+
+    let content = fs.readFileSync(path, "utf8");
+
+    // Parse the content into an AST
+    let ast = helpers.getAST(content);
+
+    // Discover global declarations
+    let scopeManager = escope.analyze(ast);
+    let globalScope = scopeManager.acquire(ast);
+
+    let globals = Object.keys(globalScope.variables).map(v => ({
+      name: globalScope.variables[v].name,
+      writable: true,
+    }));
+
+    // Walk over the AST to find any of our custom globals
+    let handler = new GlobalsForNode(path);
+
+    helpers.walkAST(ast, (type, node, parents) => {
+      // We have to discover any globals that ESLint would have defined through
+      // comment directives
+      if (type == "BlockComment") {
+        let value = node.value.trim();
+        let match = /^globals?\s+(.+)$/.exec(value);
+        if (match) {
+          let values = parseBooleanConfig(match[1].trim(), node);
+          for (let name of Object.keys(values)) {
+            globals.push({
+              name,
+              writable: values[name].value
+            })
+          }
+        }
+      }
+
+      if (type in handler) {
+        let newGlobals = handler[type](node, parents);
+        globals.push.apply(globals, newGlobals);
+      }
+    });
+
+    globalCache.set(path, globals);
+
+    return globals;
+  },
+
+  /**
+   * Intended to be used as-is for an ESLint rule that parses for globals in
+   * the current file and recurses through import-globals-from directives.
+   *
+   * @param  {Object} context
+   *         The ESLint parsing context.
+   */
+  getESLintGlobalParser(context) {
+    let globalScope;
+
+    let parser = {
+      Program(node) {
+        globalScope = context.getScope();
+      }
+    };
+
+    // Install thin wrappers around GlobalsForNode
+    let handler = new GlobalsForNode(helpers.getAbsoluteFilePath(context));
+
+    for (let type of Object.keys(GlobalsForNode.prototype)) {
+      parser[type] = function(node) {
+        let globals = handler[type](node, context.getAncestors());
+        helpers.addGlobals(globals, globalScope);
+      }
+    }
+
+    return parser;
+  }
+};
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/helpers.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/helpers.js
new file mode 100644
index 000000000..50e00ab97
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/helpers.js
@@ -0,0 +1,524 @@
+/**
+ * @fileoverview A collection of helper functions.
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+"use strict";
+
+var escope = require("escope");
+var espree = require("espree");
+var estraverse = require("estraverse");
+var path = require("path");
+var fs = require("fs");
+var ini = require("ini-parser");
+
+var modules = null;
+var directoryManifests = new Map();
+
+var definitions = [
+  /^loader\.lazyGetter\(this, "(\w+)"/,
+  /^loader\.lazyImporter\(this, "(\w+)"/,
+  /^loader\.lazyServiceGetter\(this, "(\w+)"/,
+  /^loader\.lazyRequireGetter\(this, "(\w+)"/,
+  /^XPCOMUtils\.defineLazyGetter\(this, "(\w+)"/,
+  /^XPCOMUtils\.defineLazyModuleGetter\(this, "(\w+)"/,
+  /^XPCOMUtils\.defineLazyServiceGetter\(this, "(\w+)"/,
+  /^XPCOMUtils\.defineConstant\(this, "(\w+)"/,
+  /^DevToolsUtils\.defineLazyModuleGetter\(this, "(\w+)"/,
+  /^DevToolsUtils\.defineLazyGetter\(this, "(\w+)"/,
+  /^Object\.defineProperty\(this, "(\w+)"/,
+  /^Reflect\.defineProperty\(this, "(\w+)"/,
+  /^this\.__defineGetter__\("(\w+)"/,
+  /^this\.(\w+) =/
+];
+
+var imports = [
+  /^(?:Cu|Components\.utils)\.import\(".*\/((.*?)\.jsm?)"(?:, this)?\)/,
+];
+
+module.exports = {
+  /**
+   * Gets the abstract syntax tree (AST) of the JavaScript source code contained
+   * in sourceText.
+   *
+   * @param  {String} sourceText
+   *         Text containing valid JavaScript.
+   *
+   * @return {Object}
+   *         The resulting AST.
+   */
+  getAST: function(sourceText) {
+    // Use a permissive config file to allow parsing of anything that Espree
+    // can parse.
+    var config = this.getPermissiveConfig();
+
+    return espree.parse(sourceText, config);
+  },
+
+  /**
+   * A simplistic conversion of some AST nodes to a standard string form.
+   *
+   * @param  {Object} node
+   *         The AST node to convert.
+   *
+   * @return {String}
+   *         The JS source for the node.
+   */
+  getASTSource: function(node) {
+    switch (node.type) {
+      case "MemberExpression":
+        if (node.computed)
+          throw new Error("getASTSource unsupported computed MemberExpression");
+        return this.getASTSource(node.object) + "." + this.getASTSource(node.property);
+      case "ThisExpression":
+        return "this";
+      case "Identifier":
+        return node.name;
+      case "Literal":
+        return JSON.stringify(node.value);
+      case "CallExpression":
+        var args = node.arguments.map(a => this.getASTSource(a)).join(", ");
+        return this.getASTSource(node.callee) + "(" + args + ")";
+      case "ObjectExpression":
+        return "{}";
+      case "ExpressionStatement":
+        return this.getASTSource(node.expression) + ";";
+      case "FunctionExpression":
+        return "function() {}";
+      case "ArrowFunctionExpression":
+        return "() => {}";
+      case "AssignmentExpression":
+        return this.getASTSource(node.left) + " = " + this.getASTSource(node.right);
+      default:
+        throw new Error("getASTSource unsupported node type: " + node.type);
+    }
+  },
+
+  /**
+   * This walks an AST in a manner similar to ESLint passing node and comment
+   * events to the listener. The listener is expected to be a simple function
+   * which accepts node type, node and parents arguments.
+   *
+   * @param  {Object} ast
+   *         The AST to walk.
+   * @param  {Function} listener
+   *         A callback function to call for the nodes. Passed three arguments,
+   *         event type, node and an array of parent nodes for the current node.
+   */
+  walkAST(ast, listener) {
+    let parents = [];
+
+    let seenComments = new Set();
+    function sendCommentEvents(comments) {
+      if (!comments) {
+        return;
+      }
+
+      for (let comment of comments) {
+        if (seenComments.has(comment)) {
+          return;
+        }
+        seenComments.add(comment);
+
+        listener(comment.type + "Comment", comment, parents);
+      }
+    }
+
+    estraverse.traverse(ast, {
+      enter(node, parent) {
+        // Comments are held in node.comments for empty programs
+        let leadingComments = node.leadingComments;
+        if (node.type === "Program" && node.body.length == 0) {
+          leadingComments = node.comments;
+        }
+
+        sendCommentEvents(leadingComments);
+        listener(node.type, node, parents);
+        sendCommentEvents(node.trailingComments);
+
+        parents.push(node);
+      },
+
+      leave(node, parent) {
+        // TODO send comment exit events
+        listener(node.type + ":exit", node, parents);
+
+        if (parents.length == 0) {
+          throw new Error("Left more nodes than entered.");
+        }
+        parents.pop();
+      }
+    });
+    if (parents.length) {
+      throw new Error("Entered more nodes than left.");
+    }
+  },
+
+  /**
+   * Attempts to convert an ExpressionStatement to likely global variable
+   * definitions.
+   *
+   * @param  {Object} node
+   *         The AST node to convert.
+   * @param  {boolean} isGlobal
+   *         True if the current node is in the global scope.
+   * @param  {String} repository
+   *         The root of the repository.
+   *
+   * @return {Array}
+   *         An array of variable names defined.
+   */
+  convertExpressionToGlobals: function(node, isGlobal, repository) {
+    if (!modules) {
+      modules = require(path.join(repository, "tools", "lint", "eslint", "modules.json"));
+    }
+
+    try {
+      var source = this.getASTSource(node);
+    }
+    catch (e) {
+      return [];
+    }
+
+    for (var reg of definitions) {
+      var match = source.match(reg);
+      if (match) {
+        // Must be in the global scope
+        if (!isGlobal) {
+          return [];
+        }
+
+        return [match[1]];
+      }
+    }
+
+    for (reg of imports) {
+      var match = source.match(reg);
+      if (match) {
+        // The two argument form is only acceptable in the global scope
+        if (node.expression.arguments.length > 1 && !isGlobal) {
+          return [];
+        }
+
+        if (match[1] in modules) {
+          return modules[match[1]];
+        }
+
+        return [match[2]];
+      }
+    }
+
+    return [];
+  },
+
+  /**
+   * Add a variable to the current scope.
+   * HACK: This relies on eslint internals so it could break at any time.
+   *
+   * @param {String} name
+   *        The variable name to add to the scope.
+   * @param {ASTScope} scope
+   *        The scope to add to.
+   * @param {boolean} writable
+   *        Whether the global can be overwritten.
+   */
+  addVarToScope: function(name, scope, writable) {
+    scope.__defineGeneric(name, scope.set, scope.variables, null, null);
+
+    let variable = scope.set.get(name);
+    variable.eslintExplicitGlobal = false;
+    variable.writeable = writable;
+
+    // Walk to the global scope which holds all undeclared variables.
+    while (scope.type != "global") {
+      scope = scope.upper;
+    }
+
+    // "through" contains all references with no found definition.
+    scope.through = scope.through.filter(function(reference) {
+      if (reference.identifier.name != name) {
+        return true;
+      }
+
+      // Links the variable and the reference.
+      // And this reference is removed from `Scope#through`.
+      reference.resolved = variable;
+      variable.references.push(reference);
+      return false;
+    });
+  },
+
+  /**
+   * Adds a set of globals to a scope.
+   *
+   * @param {Array} globalVars
+   *        An array of global variable names.
+   * @param {ASTScope} scope
+   *        The scope.
+   */
+  addGlobals: function(globalVars, scope) {
+    globalVars.forEach(v => this.addVarToScope(v.name, scope, v.writable));
+  },
+
+  /**
+   * To allow espree to parse almost any JavaScript we need as many features as
+   * possible turned on. This method returns that config.
+   *
+   * @return {Object}
+   *         Espree compatible permissive config.
+   */
+  getPermissiveConfig: function() {
+    return {
+      range: true,
+      loc: true,
+      comment: true,
+      attachComment: true,
+      ecmaVersion: 8,
+      sourceType: "script",
+      ecmaFeatures: {
+        experimentalObjectRestSpread: true,
+        globalReturn: true,
+      }
+    };
+  },
+
+  /**
+   * Check whether the context is the global scope.
+   *
+   * @param {Array} ancestors
+   *        The parents of the current node.
+   *
+   * @return {Boolean}
+   *         True or false
+   */
+  getIsGlobalScope: function(ancestors) {
+    for (let parent of ancestors) {
+      if (parent.type == "FunctionExpression" ||
+          parent.type == "FunctionDeclaration") {
+        return false;
+      }
+    }
+    return true;
+  },
+
+  /**
+   * Check whether we might be in a test head file.
+   *
+   * @param  {RuleContext} scope
+   *         You should pass this from within a rule
+   *         e.g. helpers.getIsHeadFile(this)
+   *
+   * @return {Boolean}
+   *         True or false
+   */
+  getIsHeadFile: function(scope) {
+    var pathAndFilename = this.cleanUpPath(scope.getFilename());
+
+    return /.*[\\/]head(_.+)?\.js$/.test(pathAndFilename);
+  },
+
+  /**
+   * Gets the head files for a potential test file
+   *
+   * @param  {RuleContext} scope
+   *         You should pass this from within a rule
+   *         e.g. helpers.getIsHeadFile(this)
+   *
+   * @return {String[]}
+   *         Paths to head files to load for the test
+   */
+  getTestHeadFiles: function(scope) {
+    if (!this.getIsTest(scope)) {
+      return [];
+    }
+
+    let filepath = this.cleanUpPath(scope.getFilename());
+    let dir = path.dirname(filepath);
+
+    let names = fs.readdirSync(dir)
+                  .filter(name => name.startsWith("head") && name.endsWith(".js"))
+                  .map(name => path.join(dir, name));
+    return names;
+  },
+
+  /**
+   * Gets all the test manifest data for a directory
+   *
+   * @param  {String} dir
+   *         The directory
+   *
+   * @return {Array}
+   *         An array of objects with file and manifest properties
+   */
+  getManifestsForDirectory: function(dir) {
+    if (directoryManifests.has(dir)) {
+      return directoryManifests.get(dir);
+    }
+
+    let manifests = [];
+
+    let names = fs.readdirSync(dir);
+    for (let name of names) {
+      if (!name.endsWith(".ini")) {
+        continue;
+      }
+
+      try {
+        let manifest = ini.parse(fs.readFileSync(path.join(dir, name), 'utf8'));
+
+        manifests.push({
+          file: path.join(dir, name),
+          manifest
+        })
+      } catch (e) {
+      }
+    }
+
+    directoryManifests.set(dir, manifests);
+    return manifests;
+  },
+
+  /**
+   * Gets the manifest file a test is listed in
+   *
+   * @param  {RuleContext} scope
+   *         You should pass this from within a rule
+   *         e.g. helpers.getIsHeadFile(this)
+   *
+   * @return {String}
+   *         The path to the test manifest file
+   */
+  getTestManifest: function(scope) {
+    let filepath = this.cleanUpPath(scope.getFilename());
+
+    let dir = path.dirname(filepath);
+    let filename = path.basename(filepath);
+
+    for (let manifest of this.getManifestsForDirectory(dir)) {
+      if (filename in manifest.manifest) {
+        return manifest.file;
+      }
+    }
+
+    return null;
+  },
+
+  /**
+   * Check whether we are in a test of some kind.
+   *
+   * @param  {RuleContext} scope
+   *         You should pass this from within a rule
+   *         e.g. helpers.getIsTest(this)
+   *
+   * @return {Boolean}
+   *         True or false
+   */
+  getIsTest: function(scope) {
+    // Regardless of the manifest name being in a manifest means we're a test.
+    let manifest = this.getTestManifest(scope);
+    if (manifest) {
+      return true;
+    }
+
+    return !!this.getTestType(scope);
+  },
+
+  /**
+   * Gets the type of test or null if this isn't a test.
+   *
+   * @param  {RuleContext} scope
+   *         You should pass this from within a rule
+   *         e.g. helpers.getIsHeadFile(this)
+   *
+   * @return {String or null}
+   *         Test type: xpcshell, browser, chrome, mochitest
+   */
+  getTestType: function(scope) {
+    let manifest = this.getTestManifest(scope);
+    if (manifest) {
+      let name = path.basename(manifest);
+      for (let testType of ["browser", "xpcshell", "chrome", "mochitest"]) {
+        if (name.startsWith(testType)) {
+          return testType;
+        }
+      }
+    }
+
+    let filepath = this.cleanUpPath(scope.getFilename());
+    let filename = path.basename(filepath);
+
+    if (filename.startsWith("browser_")) {
+      return "browser";
+    }
+
+    if (filename.startsWith("test_")) {
+      return "xpcshell";
+    }
+
+    return null;
+  },
+
+  /**
+   * Gets the root directory of the repository by walking up directories until
+   * a .eslintignore file is found.
+   * @param {String} fileName
+   *        The absolute path of a file in the repository
+   *
+   * @return {String} The absolute path of the repository directory
+   */
+  getRootDir: function(fileName) {
+    var dirName = path.dirname(fileName);
+
+    while (dirName && !fs.existsSync(path.join(dirName, ".eslintignore"))) {
+      dirName = path.dirname(dirName);
+    }
+
+    if (!dirName) {
+      throw new Error("Unable to find root of repository");
+    }
+
+    return dirName;
+  },
+
+  /**
+   * ESLint may be executed from various places: from mach, at the root of the
+   * repository, or from a directory in the repository when, for instance,
+   * executed by a text editor's plugin.
+   * The value returned by context.getFileName() varies because of this.
+   * This helper function makes sure to return an absolute file path for the
+   * current context, by looking at process.cwd().
+   * @param {Context} context
+   * @return {String} The absolute path
+   */
+  getAbsoluteFilePath: function(context) {
+    var fileName = this.cleanUpPath(context.getFilename());
+    var cwd = process.cwd();
+
+    if (path.isAbsolute(fileName)) {
+      // Case 2: executed from the repo's root with mach:
+      //   fileName: /path/to/mozilla/repo/a/b/c/d.js
+      //   cwd: /path/to/mozilla/repo
+      return fileName;
+    } else if (path.basename(fileName) == fileName) {
+      // Case 1b: executed from a nested directory, fileName is the base name
+      // without any path info (happens in Atom with linter-eslint)
+      return path.join(cwd, fileName);
+    } else {
+      // Case 1: executed form in a nested directory, e.g. from a text editor:
+      //   fileName: a/b/c/d.js
+      //   cwd: /path/to/mozilla/repo/a/b/c
+      var dirName = path.dirname(fileName);
+      return cwd.slice(0, cwd.length - dirName.length) + fileName;
+    }
+  },
+
+  /**
+   * When ESLint is run from SublimeText, paths retrieved from
+   * context.getFileName contain leading and trailing double-quote characters.
+   * These characters need to be removed.
+   */
+  cleanUpPath: function(path) {
+    return path.replace(/^"/, "").replace(/"$/, "");
+  }
+};
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/index.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/index.js
new file mode 100644
index 000000000..e1f694c36
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/index.js
@@ -0,0 +1,45 @@
+/**
+ * @fileoverview A collection of rules that help enforce JavaScript coding
+ * standard and avoid common errors in the Mozilla project.
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Plugin Definition
+//------------------------------------------------------------------------------
+
+module.exports = {
+  processors: {
+    ".xml": require("../lib/processors/xbl-bindings"),
+  },
+  rules: {
+    "balanced-listeners": require("../lib/rules/balanced-listeners"),
+    "import-globals": require("../lib/rules/import-globals"),
+    "import-headjs-globals": require("../lib/rules/import-headjs-globals"),
+    "import-browserjs-globals": require("../lib/rules/import-browserjs-globals"),
+    "mark-test-function-used": require("../lib/rules/mark-test-function-used"),
+    "no-aArgs": require("../lib/rules/no-aArgs"),
+    "no-cpows-in-tests": require("../lib/rules/no-cpows-in-tests"),
+    "no-single-arg-cu-import": require("../lib/rules/no-single-arg-cu-import"),
+    "reject-importGlobalProperties": require("../lib/rules/reject-importGlobalProperties"),
+    "reject-some-requires": require("../lib/rules/reject-some-requires"),
+    "var-only-at-top-level": require("../lib/rules/var-only-at-top-level")
+  },
+  rulesConfig: {
+    "balanced-listeners": 0,
+    "import-globals": 0,
+    "import-headjs-globals": 0,
+    "import-browserjs-globals": 0,
+    "mark-test-function-used": 0,
+    "no-aArgs": 0,
+    "no-cpows-in-tests": 0,
+    "no-single-arg-cu-import": 0,
+    "reject-importGlobalProperties": 0,
+    "reject-some-requires": 0,
+    "var-only-at-top-level": 0
+  }
+};
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/processors/xbl-bindings.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/processors/xbl-bindings.js
new file mode 100644
index 000000000..dc09550f2
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/processors/xbl-bindings.js
@@ -0,0 +1,363 @@
+/**
+ * @fileoverview Converts functions and handlers from XBL bindings into JS
+ * functions
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+"use strict";
+
+const NS_XBL = "http://www.mozilla.org/xbl";
+
+let sax = require("sax");
+
+// Converts sax's error message to something that eslint will understand
+let errorRegex = /(.*)\nLine: (\d+)\nColumn: (\d+)\nChar: (.*)/
+function parseError(err) {
+  let matches = err.message.match(errorRegex);
+  if (!matches)
+    return null;
+
+  return {
+    fatal: true,
+    message: matches[1],
+    line: parseInt(matches[2]) + 1,
+    column: parseInt(matches[3])
+  }
+}
+
+let entityRegex = /&[\w][\w-\.]*;/g;
+
+// A simple sax listener that generates a tree of element information
+function XMLParser(parser) {
+  this.parser = parser;
+  parser.onopentag = this.onOpenTag.bind(this);
+  parser.onclosetag = this.onCloseTag.bind(this);
+  parser.ontext = this.onText.bind(this);
+  parser.onopencdata = this.onOpenCDATA.bind(this);
+  parser.oncdata = this.onCDATA.bind(this);
+  parser.oncomment = this.onComment.bind(this);
+
+  this.document = {
+    local: "#document",
+    uri: null,
+    children: [],
+    comments: [],
+  }
+  this._currentNode = this.document;
+}
+
+XMLParser.prototype = {
+  parser: null,
+
+  onOpenTag: function(tag) {
+    let node = {
+      parentNode: this._currentNode,
+      local: tag.local,
+      namespace: tag.uri,
+      attributes: {},
+      children: [],
+      comments: [],
+      textContent: "",
+      textLine: this.parser.line,
+      textColumn: this.parser.column,
+      textEndLine: this.parser.line
+    }
+
+    for (let attr of Object.keys(tag.attributes)) {
+      if (tag.attributes[attr].uri == "") {
+        node.attributes[attr] = tag.attributes[attr].value;
+      }
+    }
+
+    this._currentNode.children.push(node);
+    this._currentNode = node;
+  },
+
+  onCloseTag: function(tagname) {
+    this._currentNode.textEndLine = this.parser.line;
+    this._currentNode = this._currentNode.parentNode;
+  },
+
+  addText: function(text) {
+    this._currentNode.textContent += text;
+  },
+
+  onText: function(text) {
+    // Replace entities with some valid JS token.
+    this.addText(text.replace(entityRegex, "null"));
+  },
+
+  onOpenCDATA: function() {
+    // Turn the CDATA opening tag into whitespace for indent alignment
+    this.addText(" ".repeat("<![CDATA[".length));
+  },
+
+  onCDATA: function(text) {
+    this.addText(text);
+  },
+
+  onComment: function(text) {
+    this._currentNode.comments.push(text);
+  }
+}
+
+// -----------------------------------------------------------------------------
+// Processor Definition
+// -----------------------------------------------------------------------------
+
+const INDENT_LEVEL = 2;
+
+function indent(count) {
+  return " ".repeat(count * INDENT_LEVEL);
+}
+
+// Stores any XML parse error
+let xmlParseError = null;
+
+// Stores the lines of JS code generated from the XBL
+let scriptLines = [];
+// Stores a map from the synthetic line number to the real line number
+// and column offset.
+let lineMap = [];
+
+function addSyntheticLine(line, linePos, addDisableLine) {
+  lineMap[scriptLines.length] = { line: linePos, offset: null };
+  scriptLines.push(line + (addDisableLine ? "" : " // eslint-disable-line"));
+}
+
+/**
+ * Adds generated lines from an XBL node to the script to be passed back to eslint.
+ */
+function addNodeLines(node, reindent) {
+  let lines = node.textContent.split("\n");
+  let startLine = node.textLine;
+  let startColumn = node.textColumn;
+
+  // The case where there are no whitespace lines before the first text is
+  // treated differently for indentation
+  let indentFirst = false;
+
+  // Strip off any preceeding whitespace only lines. These are often used to
+  // format the XML and CDATA blocks.
+  while (lines.length && lines[0].trim() == "") {
+    indentFirst = true;
+    startLine++;
+    lines.shift();
+  }
+
+  // Strip off any whitespace lines at the end. These are often used to line
+  // up the closing tags
+  while (lines.length && lines[lines.length - 1].trim() == "") {
+    lines.pop();
+  }
+
+  if (!indentFirst) {
+    let firstLine = lines.shift();
+    firstLine = " ".repeat(reindent * INDENT_LEVEL) + firstLine;
+    // ESLint counts columns starting at 1 rather than 0
+    lineMap[scriptLines.length] = { line: startLine, offset: reindent * INDENT_LEVEL - (startColumn - 1) };
+    scriptLines.push(firstLine);
+    startLine++;
+  }
+
+  // Find the preceeding whitespace for all lines that aren't entirely whitespace
+  let indents = lines.filter(s => s.trim().length > 0)
+                     .map(s => s.length - s.trimLeft().length);
+  // Find the smallest indent level in use
+  let minIndent = Math.min.apply(null, indents);
+
+  for (let line of lines) {
+    if (line.trim().length == 0) {
+      // Don't offset lines that are only whitespace, the only possible JS error
+      // is trailing whitespace and we want it to point at the right place
+      lineMap[scriptLines.length] = { line: startLine, offset: 0 };
+    } else {
+      line = " ".repeat(reindent * INDENT_LEVEL) + line.substring(minIndent);
+      lineMap[scriptLines.length] = { line: startLine, offset: reindent * INDENT_LEVEL - (minIndent - 1) };
+    }
+
+    scriptLines.push(line);
+    startLine++;
+  }
+}
+
+module.exports = {
+  preprocess: function(text, filename) {
+    xmlParseError = null;
+    scriptLines = [];
+    lineMap = [];
+
+    // Non-strict allows us to ignore many errors from entities and
+    // preprocessing at the expense of failing to report some XML errors.
+    // Unfortunately it also throws away the case of tagnames and attributes
+    let parser = sax.parser(false, {
+      lowercase: true,
+      xmlns: true,
+    });
+
+    parser.onerror = function(err) {
+      xmlParseError = parseError(err);
+    }
+
+    let xp = new XMLParser(parser);
+    parser.write(text);
+
+    // Sanity checks to make sure we're dealing with an XBL document
+    let document = xp.document;
+    if (document.children.length != 1) {
+      return [];
+    }
+
+    let bindings = document.children[0];
+    if (bindings.local != "bindings" || bindings.namespace != NS_XBL) {
+      return [];
+    }
+
+    for (let comment of document.comments) {
+      addSyntheticLine(`/*`, 0, true);
+      for (let line of comment.split("\n")) {
+        addSyntheticLine(`${line.trim()}`, 0, true);
+      }
+      addSyntheticLine(`*/`, 0, true);
+    }
+
+    addSyntheticLine(`this.bindings = {`, bindings.textLine);
+
+    for (let binding of bindings.children) {
+      if (binding.local != "binding" || binding.namespace != NS_XBL) {
+        continue;
+      }
+
+      addSyntheticLine(indent(1) + `"${binding.attributes.id}": {`, binding.textLine);
+
+      for (let part of binding.children) {
+        if (part.namespace != NS_XBL) {
+          continue;
+        }
+
+        if (part.local == "implementation") {
+          addSyntheticLine(indent(2) + `implementation: {`, part.textLine);
+        } else if (part.local == "handlers") {
+          addSyntheticLine(indent(2) + `handlers: [`, part.textLine);
+        } else {
+          continue;
+        }
+
+        for (let item of part.children) {
+          if (item.namespace != NS_XBL) {
+            continue;
+          }
+
+          switch (item.local) {
+            case "field": {
+              // Fields are something like lazy getter functions
+
+              // Ignore empty fields
+              if (item.textContent.trim().length == 0) {
+                continue;
+              }
+
+              addSyntheticLine(indent(3) + `get ${item.attributes.name}() {`, item.textLine);
+              addSyntheticLine(indent(4) + `return (`, item.textLine);
+
+              // Remove trailing semicolons, as we are adding our own
+              item.textContent = item.textContent.replace(/;(?=\s*$)/, "");
+              addNodeLines(item, 5);
+
+              addSyntheticLine(indent(4) + `);`, item.textLine);
+              addSyntheticLine(indent(3) + `},`, item.textEndLine);
+              break;
+            }
+            case "constructor":
+            case "destructor": {
+              // Constructors and destructors become function declarations
+              addSyntheticLine(indent(3) + `${item.local}() {`, item.textLine);
+              addNodeLines(item, 4);
+              addSyntheticLine(indent(3) + `},`, item.textEndLine);
+              break;
+            }
+            case "method": {
+              // Methods become function declarations with the appropriate params
+
+              let params = item.children.filter(n => n.local == "parameter" && n.namespace == NS_XBL)
+                                        .map(n => n.attributes.name)
+                                        .join(", ");
+              let body = item.children.filter(n => n.local == "body" && n.namespace == NS_XBL)[0];
+
+              addSyntheticLine(indent(3) + `${item.attributes.name}(${params}) {`, item.textLine);
+              addNodeLines(body, 4);
+              addSyntheticLine(indent(3) + `},`, item.textEndLine);
+              break;
+            }
+            case "property": {
+              // Properties become one or two function declarations
+              for (let propdef of item.children) {
+                if (propdef.namespace != NS_XBL) {
+                  continue;
+                }
+
+                if (propdef.local == "setter") {
+                  addSyntheticLine(indent(3) + `set ${item.attributes.name}(val) {`, propdef.textLine);
+                } else if (propdef.local == "getter") {
+                  addSyntheticLine(indent(3) + `get ${item.attributes.name}() {`, propdef.textLine);
+                } else {
+                  continue;
+                }
+                addNodeLines(propdef, 4);
+                addSyntheticLine(indent(3) + `},`, propdef.textEndLine);
+              }
+              break;
+            }
+            case "handler": {
+              // Handlers become a function declaration with an `event` parameter
+              addSyntheticLine(indent(3) + `function(event) {`, item.textLine);
+              addNodeLines(item, 4);
+              addSyntheticLine(indent(3) + `},`, item.textEndLine);
+              break;
+            }
+            default:
+              continue;
+          }
+        }
+
+        addSyntheticLine(indent(2) + (part.local == "implementation" ? `},` : `],`), part.textEndLine);
+      }
+      addSyntheticLine(indent(1) + `},`, binding.textEndLine);
+    }
+    addSyntheticLine(`};`, bindings.textEndLine);
+
+    let script = scriptLines.join("\n") + "\n";
+    return [script];
+  },
+
+  postprocess: function(messages, filename) {
+    // If there was an XML parse error then just return that
+    if (xmlParseError) {
+      return [xmlParseError];
+    }
+
+    // For every message from every script block update the line to point to the
+    // correct place.
+    let errors = [];
+    for (let i = 0; i < messages.length; i++) {
+      for (let message of messages[i]) {
+        // ESLint indexes lines starting at 1 but our arrays start at 0
+        let mapped = lineMap[message.line - 1];
+
+        message.line = mapped.line + 1;
+        if (mapped.offset) {
+          message.column -= mapped.offset;
+        } else {
+          message.column = NaN;
+        }
+
+        errors.push(message);
+      }
+    }
+
+    return errors;
+  }
+};
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/.eslintrc.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/.eslintrc.js
new file mode 100644
index 000000000..505a3ea82
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/.eslintrc.js
@@ -0,0 +1,51 @@
+"use strict";
+
+/**
+ * Based on npm coding standards at https://docs.npmjs.com/misc/coding-style.
+ *
+ * The places we differ from the npm coding style:
+ *   - Commas should be at the end of a line.
+ *   - Always use semicolons.
+ *   - Functions should not have whitespace before params.
+ */
+
+module.exports = {
+  "env": {
+    "node": true
+  },
+
+  "rules": {
+    "brace-style": ["error", "1tbs"],
+    "camelcase": "error",
+    "comma-dangle": ["error", "never"],
+    "comma-spacing": "error",
+    "comma-style": ["error", "last"],
+    "curly": ["error", "multi-line"],
+    "handle-callback-err": ["error", "er"],
+    "indent": ["error", 2, {"SwitchCase": 1}],
+    "max-len": ["error", 80, "error"],
+    "no-multiple-empty-lines": ["error", {"max": 1}],
+    "no-undef": "error",
+    "no-undef-init": "error",
+    "no-unexpected-multiline": "error",
+    "object-curly-spacing": "off",
+    "one-var": ["error", "never"],
+    "operator-linebreak": ["error", "after"],
+    "semi": ["error", "always"],
+    "space-before-blocks": "error",
+    "space-before-function-paren": ["error", "never"],
+    "keyword-spacing": "error",
+    "strict": ["error", "global"],
+  },
+
+  // Globals accessible within node modules.
+  "globals": {
+    "DTRACE_HTTP_CLIENT_REQUEST": true,
+    "DTRACE_HTTP_CLIENT_RESPONSE": true,
+    "DTRACE_HTTP_SERVER_REQUEST": true,
+    "DTRACE_HTTP_SERVER_RESPONSE": true,
+    "DTRACE_NET_SERVER_CONNECTION": true,
+    "DTRACE_NET_STREAM_END": true,
+    "Intl": true,
+  },
+};
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/balanced-listeners.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/balanced-listeners.js
new file mode 100644
index 000000000..c658a6b44
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/balanced-listeners.js
@@ -0,0 +1,113 @@
+/**

+ * @fileoverview Check that there's a removeEventListener for each

+ * addEventListener and an off for each on.

+ * Note that for now, this rule is rather simple in that it only checks that

+ * for each event name there is both an add and remove listener. It doesn't

+ * check that these are called on the right objects or with the same callback.

+ *

+ * This Source Code Form is subject to the terms of the Mozilla Public

+ * License, v. 2.0. If a copy of the MPL was not distributed with this

+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.

+ */

+

+"use strict";

+

+// -----------------------------------------------------------------------------

+// Rule Definition

+// -----------------------------------------------------------------------------

+

+module.exports = function(context) {

+  // ---------------------------------------------------------------------------

+  // Helpers

+  // ---------------------------------------------------------------------------

+

+  var DICTIONARY = {

+    "addEventListener": "removeEventListener",

+    "on": "off"

+  };

+  // Invert this dictionary to make it easy later.

+  var INVERTED_DICTIONARY = {};

+  for (var i in DICTIONARY) {

+    INVERTED_DICTIONARY[DICTIONARY[i]] = i;

+  }

+

+  // Collect the add/remove listeners in these 2 arrays.

+  var addedListeners = [];

+  var removedListeners = [];

+

+  function addAddedListener(node) {

+    addedListeners.push({

+      functionName: node.callee.property.name,

+      type: node.arguments[0].value,

+      node: node.callee.property,

+      useCapture: node.arguments[2] ? node.arguments[2].value : null

+    });

+  }

+

+  function addRemovedListener(node) {

+    removedListeners.push({

+      functionName: node.callee.property.name,

+      type: node.arguments[0].value,

+      useCapture: node.arguments[2] ? node.arguments[2].value : null

+    });

+  }

+

+  function getUnbalancedListeners() {

+    var unbalanced = [];

+

+    for (var j = 0; j < addedListeners.length; j++) {

+      if (!hasRemovedListener(addedListeners[j])) {

+        unbalanced.push(addedListeners[j]);

+      }

+    }

+    addedListeners = removedListeners = [];

+

+    return unbalanced;

+  }

+

+  function hasRemovedListener(addedListener) {

+    for (var k = 0; k < removedListeners.length; k++) {

+      var listener = removedListeners[k];

+      if (DICTIONARY[addedListener.functionName] === listener.functionName &&

+          addedListener.type === listener.type &&

+          addedListener.useCapture === listener.useCapture) {

+        return true;

+      }

+    }

+

+    return false;

+  }

+

+  // ---------------------------------------------------------------------------

+  // Public

+  // ---------------------------------------------------------------------------

+

+  return {

+    CallExpression: function(node) {

+      if (node.arguments.length === 0) {

+        return;

+      }

+

+      if (node.callee.type === "MemberExpression") {

+        var listenerMethodName = node.callee.property.name;

+

+        if (DICTIONARY.hasOwnProperty(listenerMethodName)) {

+          addAddedListener(node);

+        } else if (INVERTED_DICTIONARY.hasOwnProperty(listenerMethodName)) {

+          addRemovedListener(node);

+        }

+      }

+    },

+

+    "Program:exit": function() {

+      getUnbalancedListeners().forEach(function(listener) {

+        context.report(listener.node,

+          "No corresponding '{{functionName}}({{type}})' was found.",

+          {

+            functionName: DICTIONARY[listener.functionName],

+            type: listener.type

+          });

+      });

+    }

+  };

+};

diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/import-browserjs-globals.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/import-browserjs-globals.js
new file mode 100644
index 000000000..313af2d71
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/import-browserjs-globals.js
@@ -0,0 +1,83 @@
+/**
+ * @fileoverview Import globals from browser.js.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+"use strict";
+
+// -----------------------------------------------------------------------------
+// Rule Definition
+// -----------------------------------------------------------------------------
+
+var fs = require("fs");
+var path = require("path");
+var helpers = require("../helpers");
+var globals = require("../globals");
+
+const SCRIPTS = [
+  //"browser/base/content/nsContextMenu.js",
+  "toolkit/content/contentAreaUtils.js",
+  "browser/components/places/content/editBookmarkOverlay.js",
+  "toolkit/components/printing/content/printUtils.js",
+  "toolkit/content/viewZoomOverlay.js",
+  "browser/components/places/content/browserPlacesViews.js",
+  "browser/base/content/browser.js",
+  "browser/components/downloads/content/downloads.js",
+  "browser/components/downloads/content/indicator.js",
+  "browser/components/customizableui/content/panelUI.js",
+  "toolkit/components/viewsource/content/viewSourceUtils.js",
+  "browser/base/content/browser-addons.js",
+  "browser/base/content/browser-ctrlTab.js",
+  "browser/base/content/browser-customization.js",
+  "browser/base/content/browser-devedition.js",
+  "browser/base/content/browser-feeds.js",
+  "browser/base/content/browser-fullScreenAndPointerLock.js",
+  "browser/base/content/browser-fullZoom.js",
+  "browser/base/content/browser-gestureSupport.js",
+  "browser/base/content/browser-media.js",
+  "browser/base/content/browser-places.js",
+  "browser/base/content/browser-plugins.js",
+  "browser/base/content/browser-refreshblocker.js",
+  "browser/base/content/browser-safebrowsing.js",
+  "browser/base/content/browser-sidebar.js",
+  "browser/base/content/browser-social.js",
+  "browser/base/content/browser-syncui.js",
+  "browser/base/content/browser-tabsintitlebar.js",
+  "browser/base/content/browser-thumbnails.js",
+  "browser/base/content/browser-trackingprotection.js",
+  "browser/base/content/browser-data-submission-info-bar.js",
+  "browser/base/content/browser-fxaccounts.js"
+];
+
+module.exports = function(context) {
+  return {
+    Program: function(node) {
+      if (helpers.getTestType(this) != "browser" &&
+          !helpers.getIsHeadFile(this)) {
+        return;
+      }
+
+      let filepath = helpers.getAbsoluteFilePath(context);
+      let root = helpers.getRootDir(filepath);
+      for (let script of SCRIPTS) {
+        let fileName = path.join(root, script);
+        try {
+          let newGlobals = globals.getGlobalsForFile(fileName);
+          helpers.addGlobals(newGlobals, context.getScope());
+        } catch (e) {
+          context.report(
+            node,
+            "Could not load globals from file {{filePath}}: {{error}}",
+            {
+              filePath: path.relative(root, fileName),
+              error: e
+            }
+          );
+        }
+      }
+    }
+  };
+};
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/import-globals.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/import-globals.js
new file mode 100644
index 000000000..053a9e702
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/import-globals.js
@@ -0,0 +1,15 @@
+/**
+ * @fileoverview Discovers all globals for the current file.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+"use strict";
+
+// -----------------------------------------------------------------------------
+// Rule Definition
+// -----------------------------------------------------------------------------
+
+module.exports = require("../globals").getESLintGlobalParser;
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/import-headjs-globals.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/import-headjs-globals.js
new file mode 100644
index 000000000..783642f58
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/import-headjs-globals.js
@@ -0,0 +1,49 @@
+/**
+ * @fileoverview Import globals from head.js and from any files that were
+ * imported by head.js (as far as we can correctly resolve the path).
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+"use strict";
+
+// -----------------------------------------------------------------------------
+// Rule Definition
+// -----------------------------------------------------------------------------
+
+var fs = require("fs");
+var path = require("path");
+var helpers = require("../helpers");
+var globals = require("../globals");
+
+module.exports = function(context) {
+
+  function importHead(path, node) {
+    try {
+      let stats = fs.statSync(path);
+      if (!stats.isFile()) {
+        return;
+      }
+    } catch (e) {
+      return;
+    }
+
+    let newGlobals = globals.getGlobalsForFile(path);
+    helpers.addGlobals(newGlobals, context.getScope());
+  }
+
+  // ---------------------------------------------------------------------------
+  // Public
+  // ---------------------------------------------------------------------------
+
+  return {
+    Program: function(node) {
+      let heads = helpers.getTestHeadFiles(this);
+      for (let head of heads) {
+        importHead(head, node);
+      }
+    }
+  };
+};
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/mark-test-function-used.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/mark-test-function-used.js
new file mode 100644
index 000000000..b2e8ec294
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/mark-test-function-used.js
@@ -0,0 +1,37 @@
+/**
+ * @fileoverview Simply marks `test` (the test method) or `run_test` as used when
+ * in mochitests or xpcshell tests respectively. This avoids ESLint telling us
+ * that the function is never called.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+"use strict";
+
+// -----------------------------------------------------------------------------
+// Rule Definition
+// -----------------------------------------------------------------------------
+
+var helpers = require("../helpers");
+
+module.exports = function(context) {
+  // ---------------------------------------------------------------------------
+  // Public
+  // ---------------------------------------------------------------------------
+
+  return {
+    Program: function() {
+      if (helpers.getTestType(this) == "browser") {
+        context.markVariableAsUsed("test");
+        return;
+      }
+
+      if (helpers.getTestType(this) == "xpcshell") {
+        context.markVariableAsUsed("run_test");
+        return;
+      }
+    }
+  };
+};
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/no-aArgs.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/no-aArgs.js
new file mode 100644
index 000000000..267f6836f
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/no-aArgs.js
@@ -0,0 +1,55 @@
+/**

+ * @fileoverview warns against using hungarian notation in function arguments

+ * (i.e. aArg).

+ *

+ * This Source Code Form is subject to the terms of the Mozilla Public

+ * License, v. 2.0. If a copy of the MPL was not distributed with this

+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.

+ */

+

+"use strict";

+

+// -----------------------------------------------------------------------------

+// Rule Definition

+// -----------------------------------------------------------------------------

+

+module.exports = function(context) {

+  // ---------------------------------------------------------------------------

+  // Helpers

+  // ---------------------------------------------------------------------------

+

+  function isPrefixed(name) {

+    return name.length >= 2 && /^a[A-Z]/.test(name);

+  }

+

+  function deHungarianize(name) {

+    return name.substring(1, 2).toLowerCase() +

+           name.substring(2, name.length);

+  }

+

+  function checkFunction(node) {

+    for (var i = 0; i < node.params.length; i++) {

+      var param = node.params[i];

+      if (param.name && isPrefixed(param.name)) {

+        var errorObj = {

+          name: param.name,

+          suggestion: deHungarianize(param.name)

+        };

+        context.report(param,

+                       "Parameter '{{name}}' uses Hungarian Notation, " +

+                       "consider using '{{suggestion}}' instead.",

+                       errorObj);

+      }

+    }

+  }

+

+  // ---------------------------------------------------------------------------

+  // Public

+  // ---------------------------------------------------------------------------

+

+  return {

+    "FunctionDeclaration": checkFunction,

+    "ArrowFunctionExpression": checkFunction,

+    "FunctionExpression": checkFunction

+  };

+};

diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/no-cpows-in-tests.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/no-cpows-in-tests.js
new file mode 100644
index 000000000..415cb2fc9
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/no-cpows-in-tests.js
@@ -0,0 +1,112 @@
+/**
+ * @fileoverview Prevent access to CPOWs in browser mochitests.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+"use strict";
+
+// -----------------------------------------------------------------------------
+// Rule Definition
+// -----------------------------------------------------------------------------
+
+var helpers = require("../helpers");
+
+var cpows = [
+  /^gBrowser\.contentWindow/,
+  /^gBrowser\.contentDocument/,
+  /^gBrowser\.selectedBrowser.contentWindow/,
+  /^browser\.contentDocument/,
+  /^window\.content/
+];
+
+var isInContentTask = false;
+
+module.exports = function(context) {
+  // ---------------------------------------------------------------------------
+  // Helpers
+  // ---------------------------------------------------------------------------
+
+  function showError(node, identifier) {
+    if (isInContentTask) {
+      return;
+    }
+
+    context.report({
+      node: node,
+      message: identifier +
+               " is a possible Cross Process Object Wrapper (CPOW)."
+    });
+  }
+
+  function isContentTask(node) {
+    return node &&
+           node.type === "MemberExpression" &&
+           node.property.type === "Identifier" &&
+           node.property.name === "spawn" &&
+           node.object.type === "Identifier" &&
+           node.object.name === "ContentTask";
+  }
+
+  // ---------------------------------------------------------------------------
+  // Public
+  // ---------------------------------------------------------------------------
+
+  return {
+    CallExpression: function(node) {
+      if (isContentTask(node.callee)) {
+        isInContentTask = true;
+      }
+    },
+
+    "CallExpression:exit": function(node) {
+      if (isContentTask(node.callee)) {
+        isInContentTask = false;
+      }
+    },
+
+    MemberExpression: function(node) {
+      if (helpers.getTestType(this) != "browser") {
+        return;
+      }
+
+      var expression = context.getSource(node);
+
+      // Only report a single CPOW error per node -- so if checking
+      // |cpows| reports one, don't report another below.
+      var someCpowFound = cpows.some(function(cpow) {
+        if (cpow.test(expression)) {
+          showError(node, expression);
+          return true;
+        }
+        return false;
+      });
+      if (!someCpowFound && helpers.getIsGlobalScope(context.getAncestors())) {
+        if (/^content\./.test(expression)) {
+          showError(node, expression);
+          return;
+        }
+      }
+    },
+
+    Identifier: function(node) {
+      if (helpers.getTestType(this) != "browser") {
+        return;
+      }
+
+      var expression = context.getSource(node);
+      if (expression == "content" || /^content\./.test(expression)) {
+        if (node.parent.type === "MemberExpression" &&
+            node.parent.object &&
+            node.parent.object.type === "Identifier" &&
+            node.parent.object.name != "content") {
+          return;
+        }
+        showError(node, expression);
+        return;
+      }
+    }
+  };
+};
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/no-single-arg-cu-import.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/no-single-arg-cu-import.js
new file mode 100644
index 000000000..b295f3555
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/no-single-arg-cu-import.js
@@ -0,0 +1,39 @@
+/**
+ * @fileoverview Reject use of single argument Cu.import
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+"use strict";
+
+// -----------------------------------------------------------------------------
+// Rule Definition
+// -----------------------------------------------------------------------------
+
+var helpers = require("../helpers");
+
+module.exports = function(context) {
+
+  // ---------------------------------------------------------------------------
+  // Public
+  //  --------------------------------------------------------------------------
+
+  return {
+    "CallExpression": function(node) {
+      if (node.callee.type === "MemberExpression") {
+        let memexp = node.callee;
+        if (memexp.object.type === "Identifier" &&
+            // Only Cu, not Components.utils; see bug 1230369.
+            memexp.object.name === "Cu" &&
+            memexp.property.type === "Identifier" &&
+            memexp.property.name === "import" &&
+            node.arguments.length === 1) {
+          context.report(node, "Single argument Cu.import exposes new " +
+                               "globals to all modules");
+        }
+      }
+    }
+  };
+};
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/reject-importGlobalProperties.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/reject-importGlobalProperties.js
new file mode 100644
index 000000000..0661c91d4
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/reject-importGlobalProperties.js
@@ -0,0 +1,37 @@
+/**
+ * @fileoverview Reject use of Cu.importGlobalProperties
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+"use strict";
+
+// -----------------------------------------------------------------------------
+// Rule Definition
+// -----------------------------------------------------------------------------
+
+var helpers = require("../helpers");
+
+module.exports = function(context) {
+
+  // ---------------------------------------------------------------------------
+  // Public
+  //  --------------------------------------------------------------------------
+
+  return {
+    "CallExpression": function(node) {
+      if (node.callee.type === "MemberExpression") {
+        let memexp = node.callee;
+        if (memexp.object.type === "Identifier" &&
+            // Only Cu, not Components.utils; see bug 1230369.
+            memexp.object.name === "Cu" &&
+            memexp.property.type === "Identifier" &&
+            memexp.property.name === "importGlobalProperties") {
+          context.report(node, "Unexpected call to Cu.importGlobalProperties");
+        }
+      }
+    }
+  };
+};
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/reject-some-requires.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/reject-some-requires.js
new file mode 100644
index 000000000..746f98a1f
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/reject-some-requires.js
@@ -0,0 +1,48 @@
+/**
+ * @fileoverview Reject some uses of require.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+"use strict";
+
+// -----------------------------------------------------------------------------
+// Rule Definition
+// -----------------------------------------------------------------------------
+
+module.exports = function(context) {
+
+  // ---------------------------------------------------------------------------
+  // Public
+  //  --------------------------------------------------------------------------
+
+  if (typeof(context.options[0]) !== "string") {
+    throw new Error("reject-some-requires expects a regexp");
+  }
+  const RX = new RegExp(context.options[0]);
+
+  const checkPath = function(node, path) {
+    if (RX.test(path)) {
+      context.report(node, `require(${path}) is not allowed`);
+    }
+  };
+
+  return {
+    "CallExpression": function(node) {
+      if (node.callee.type == "Identifier" &&
+          node.callee.name == "require" &&
+          node.arguments.length == 1 &&
+          node.arguments[0].type == "Literal") {
+        checkPath(node, node.arguments[0].value);
+      } else if (node.callee.type == "MemberExpression" &&
+                 node.callee.property.type == "Identifier" &&
+                 node.callee.property.name == "lazyRequireGetter" &&
+                 node.arguments.length >= 3 &&
+                 node.arguments[2].type == "Literal") {
+        checkPath(node, node.arguments[2].value);
+      }
+    }
+  };
+};
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/var-only-at-top-level.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/var-only-at-top-level.js
new file mode 100644
index 000000000..a1e14e166
--- /dev/null
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/var-only-at-top-level.js
@@ -0,0 +1,34 @@
+/**
+ * @fileoverview Marks all var declarations that are not at the top level
+ *               invalid.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+"use strict";
+
+// -----------------------------------------------------------------------------
+// Rule Definition
+// -----------------------------------------------------------------------------
+
+var helpers = require("../helpers");
+
+module.exports = function(context) {
+  // ---------------------------------------------------------------------------
+  // Public
+  //  --------------------------------------------------------------------------
+
+  return {
+    "VariableDeclaration": function(node) {
+      if (node.kind === "var") {
+        if (helpers.getIsGlobalScope(context.getAncestors())) {
+          return;
+        }
+
+        context.report(node, "Unexpected var, use let or const instead.");
+      }
+    }
+  };
+};