Bump eslint-config-babel and fix lint (#5129)

package.json

@@ -26,7 +26,7 @@
     "codecov": "^1.0.1",
     "derequire": "^2.0.2",
     "eslint": "^3.9.0",
-    "eslint-config-babel": "^5.0.0",
+    "eslint-config-babel": "^6.0.0",
     "eslint-plugin-flowtype": "^2.20.0",
     "flow-bin": "^0.34.0",
     "gulp": "^3.9.0",

packages/babel-code-frame/src/index.js

@@ -1,4 +1,4 @@
-import jsTokens, {matchToToken} from "js-tokens";
+import jsTokens, { matchToToken } from "js-tokens";
 import esutils from "esutils";
 import Chalk from "chalk";
 

packages/babel-code-frame/test/index.js

@@ -109,7 +109,7 @@ describe("babel-code-frame", function () {
 
   it("opts.highlightCode", function () {
     const rawLines = "console.log('babel')";
-    const result = codeFrame(rawLines, 1, 9, {highlightCode: true});
+    const result = codeFrame(rawLines, 1, 9, { highlightCode: true });
     const stripped = chalk.stripColor(result);
     assert.ok(result.length > stripped.length);
     assert.equal(stripped, [

packages/babel-core/src/transformation/internal-plugins/shadow-functions.js

@@ -7,7 +7,7 @@ const superVisitor = {
   CallExpression(path) {
     if (!path.get("callee").isSuper()) return;
 
-    const {node} = path;
+    const { node } = path;
     if (node[SUPER_THIS_BOUND]) return;
     node[SUPER_THIS_BOUND] = true;
 
@@ -101,7 +101,7 @@ function remap(path, key) {
   const classPath = fnPath.findParent((p) => p.isClass());
   const hasSuperClass = !!(classPath && classPath.node && classPath.node.superClass);
 
-  if (key === "this" && fnPath.isMethod({kind: "constructor"}) && hasSuperClass) {
+  if (key === "this" && fnPath.isMethod({ kind: "constructor" }) && hasSuperClass) {
     fnPath.scope.push({ id });
 
     fnPath.traverse(superVisitor, { id });

packages/babel-core/test/evaluation.js

@@ -64,6 +64,6 @@ describe("evaluation", function () {
   addTest("'abc' === 'xyz' || (1 === 1 && 'four' === 'four')", "LogicalExpression", true);
   addTest("'abc' === 'abc' && (1 === 1 && 'four' === 'four')", "LogicalExpression", true);
   addTest("({})", "ObjectExpression", {});
-  addTest("({a: '1'})", "ObjectExpression", {a: "1"});
-  addTest("({['a' + 'b']: 10 * 20, 'z': [1, 2, 3]})", "ObjectExpression", {ab: 200, z: [1, 2, 3]});
+  addTest("({a: '1'})", "ObjectExpression", { a: "1" });
+  addTest("({['a' + 'b']: 10 * 20, 'z': [1, 2, 3]})", "ObjectExpression", { ab: 200, z: [1, 2, 3] });
 });

packages/babel-generator/src/buffer.js

@@ -55,7 +55,7 @@ export default class Buffer {
           return this.map = map.get();
         },
         set(value) {
-          Object.defineProperty(this, "map", {value, writable: true});
+          Object.defineProperty(this, "map", { value, writable: true });
         },
       });
     }

packages/babel-generator/src/index.js

@@ -2,7 +2,7 @@ import detectIndent from "detect-indent";
 import SourceMap from "./source-map";
 import * as messages from "babel-messages";
 import Printer from "./printer";
-import type {Format} from "./printer";
+import type { Format } from "./printer";
 
 /**
  * Babel's code generator, turns an ast into code, maintaining sourcemaps,

packages/babel-generator/src/node/parentheses.js

@@ -43,7 +43,7 @@ export function UpdateExpression(node: Object, parent: Object): boolean {
 }
 
 export function ObjectExpression(node: Object, parent: Object, printStack: Array<Object>): boolean {
-  return isFirstInStatement(printStack, {considerArrow: true});
+  return isFirstInStatement(printStack, { considerArrow: true });
 }
 
 export function Binary(node: Object, parent: Object): boolean {
@@ -150,7 +150,7 @@ export function YieldExpression(node: Object, parent: Object): boolean {
 export { YieldExpression as AwaitExpression };
 
 export function ClassExpression(node: Object, parent: Object, printStack: Array<Object>): boolean {
-  return isFirstInStatement(printStack, {considerDefaultExports: true});
+  return isFirstInStatement(printStack, { considerDefaultExports: true });
 }
 
 export function UnaryLike(node: Object, parent: Object): boolean {
@@ -166,7 +166,7 @@ export function UnaryLike(node: Object, parent: Object): boolean {
 }
 
 export function FunctionExpression(node: Object, parent: Object, printStack: Array<Object>): boolean {
-  return isFirstInStatement(printStack, {considerDefaultExports: true});
+  return isFirstInStatement(printStack, { considerDefaultExports: true });
 }
 
 export function ArrowFunctionExpression(node: Object, parent: Object): boolean {

packages/babel-plugin-transform-class-properties/src/index.js

@@ -29,13 +29,13 @@ export default function ({ types: t }) {
     });
   `);
 
-  const buildClassPropertySpec = (ref, {key, value, computed}) => buildObjectDefineProperty({
+  const buildClassPropertySpec = (ref, { key, value, computed }) => buildObjectDefineProperty({
     REF: ref,
     KEY: (t.isIdentifier(key) && !computed) ? t.stringLiteral(key.name) : key,
     VALUE: value ? value : t.identifier("undefined")
   });
 
-  const buildClassPropertyNonSpec = (ref, {key, value, computed}) => t.expressionStatement(
+  const buildClassPropertyNonSpec = (ref, { key, value, computed }) => t.expressionStatement(
     t.assignmentExpression("=", t.memberExpression(ref, key, computed || t.isLiteral(key)), value)
   );
 

packages/babel-plugin-transform-es2015-destructuring/src/index.js

@@ -506,7 +506,7 @@ export default function ({ types: t }) {
         for (const nodeOut of nodesOut) {
           if (!nodeOut.declarations) continue;
           for (const declaration of nodeOut.declarations) {
-            const {name} = declaration.id;
+            const { name } = declaration.id;
             if (scope.bindings[name]) {
               scope.bindings[name].kind = nodeOut.kind;
             }

packages/babel-plugin-transform-es2015-modules-commonjs/src/index.js

@@ -355,7 +355,7 @@ export default function () {
           }
 
           for (const source in imports) {
-            const {specifiers, maxBlockHoist} = imports[source];
+            const { specifiers, maxBlockHoist } = imports[source];
             if (specifiers.length) {
               const uid = addRequire(source, maxBlockHoist);
 

packages/babel-plugin-transform-es2015-modules-commonjs/test/esmodule-flag.js

@@ -21,7 +21,7 @@ test("Re-export doesn't overwrite __esModule flag", function () {
 
   code = babel.transform(code, {
     "plugins": [
-      [require("../"), {loose: true}],
+      [require("../"), { loose: true }],
     ],
     "ast": false,
   }).code;

packages/babel-plugin-transform-es2015-parameters/src/rest.js

@@ -67,7 +67,7 @@ const memberExpressionOptimisationVisitor = {
     if (state.noOptimise) {
       state.deopted = true;
     } else {
-      const {parentPath} = path;
+      const { parentPath } = path;
 
       // Is this identifier the right hand side of a default parameter?
       if (parentPath.listKey === "params" && parentPath.key < state.offset) {
@@ -117,13 +117,13 @@ const memberExpressionOptimisationVisitor = {
             // if we know that this member expression is referencing a number then
             // we can safely optimise it
             if (parentPath.get("property").isBaseType("number")) {
-              state.candidates.push({cause: "indexGetter", path});
+              state.candidates.push({ cause: "indexGetter", path });
               return;
             }
           }
           // args.length
           else if (parentPath.node.property.name === "length") {
-            state.candidates.push({cause: "lengthGetter", path});
+            state.candidates.push({ cause: "lengthGetter", path });
             return;
           }
         }
@@ -136,7 +136,7 @@ const memberExpressionOptimisationVisitor = {
       if (state.offset === 0 && parentPath.isSpreadElement()) {
         const call = parentPath.parentPath;
         if (call.isCallExpression() && call.node.arguments.length === 1) {
-          state.candidates.push({cause: "argSpread", path});
+          state.candidates.push({ cause: "argSpread", path });
           return;
         }
       }
@@ -176,7 +176,7 @@ function optimiseIndexGetter(path, argsId, offset) {
   const { scope } = path;
   if (!scope.isPure(index)) {
     const temp = scope.generateUidIdentifierBasedOnNode(index);
-    scope.push({id: temp, kind: "var"});
+    scope.push({ id: temp, kind: "var" });
     path.parentPath.replaceWith(restIndexImpure({
       ARGUMENTS: argsId,
       INDEX: index,
@@ -246,7 +246,7 @@ export const visitor = {
 
     // There are only "shorthand" references
     if (!state.deopted && !state.references.length) {
-      for (const {path, cause} of (state.candidates: Array)) {
+      for (const { path, cause } of (state.candidates: Array)) {
         switch (cause) {
           case "indexGetter":
             optimiseIndexGetter(path, argsId, state.offset);

packages/babel-plugin-transform-es3-property-literals/src/index.js

@@ -2,7 +2,7 @@ export default function ({ types: t }) {
   return {
     visitor: {
       ObjectProperty: {
-        exit({node}) {
+        exit({ node }) {
           const key = node.key;
           if (!node.computed && t.isIdentifier(key) && !t.isValidIdentifier(key.name)) {
             // default: "bar" -> "default": "bar"

packages/babel-plugin-transform-react-jsx-source/src/index.js

@@ -50,7 +50,7 @@ export default function ({ types: t }) {
           : null;
 
         const fileNameIdentifier = path.scope.generateUidIdentifier(FILE_NAME_VAR);
-        path.hub.file.scope.push({id: fileNameIdentifier, init: t.stringLiteral(fileName)});
+        path.hub.file.scope.push({ id: fileNameIdentifier, init: t.stringLiteral(fileName) });
         state.fileNameIdentifier = fileNameIdentifier;
       }
 

packages/babel-preset-es2015/test/index.js

@@ -21,7 +21,7 @@ describe("es2015 preset", function () {
     describe("loose", function () {
       it("throws on non-boolean value", function () {
         expect(function () {
-          es2015.buildPreset(null, { loose: 1});
+          es2015.buildPreset(null, { loose: 1 });
         }).to.throw(/must be a boolean/);
       });
     });

packages/babel-template/src/index.js

@@ -36,7 +36,7 @@ export default function (code: string, opts?: Object): Function {
     try {
       ast = babylon.parse(code, opts);
 
-      ast = traverse.removeProperties(ast, {preserveComments: opts.preserveComments});
+      ast = traverse.removeProperties(ast, { preserveComments: opts.preserveComments });
 
       traverse.cheap(ast, function (node) {
         node[FROM_TEMPLATE] = true;

packages/babel-template/test/index.js

@@ -13,7 +13,7 @@ describe("templating", function () {
 
   it("import statements are allowed with sourceType: module", function () {
     chai.expect(function () {
-      template("import foo from 'foo'", {sourceType: "module"})({});
+      template("import foo from 'foo'", { sourceType: "module" })({});
     }).not.to.throw();
   });
 
@@ -24,7 +24,7 @@ describe("templating", function () {
   });
 
   it("should preserve comments with a flag", function () {
-    const output = template(comments, {preserveComments: true})();
+    const output = template(comments, { preserveComments: true })();
     chai.expect(generator(output).code).to.be.equal(comments);
   });
 });

packages/babel-traverse/test/inference.js

@@ -4,7 +4,7 @@ import { parse } from "babylon";
 import * as t from "babel-types";
 
 function getPath(code) {
-  const ast = parse(code, {plugins: ["flow", "asyncGenerators"]});
+  const ast = parse(code, { plugins: ["flow", "asyncGenerators"] });
   let path;
   traverse(ast, {
     Program: function (_path) {

packages/babel-types/test/retrievers.js

@@ -3,7 +3,7 @@ import assert from "assert";
 import { parse } from "babylon";
 
 function getBody(program) {
-  return parse(program, {sourceType: "module"}).program.body;
+  return parse(program, { sourceType: "module" }).program.body;
 }
 
 describe("retrievers", function () {