diff --git a/README.md b/README.md index 157bd2d..9444f93 100644 --- a/README.md +++ b/README.md @@ -32,7 +32,8 @@ original ones as well!). "babel/object-curly-spacing": 1, "babel/no-await-in-loop": 1, "babel/flow-object-type": 1, - "babel/no-invalid-this": 1 + "babel/no-invalid-this": 1, + "babel/semi": 1 } } ``` @@ -45,6 +46,7 @@ Each rule corresponds to a core `eslint` rule, and has the same options. - `babel/new-cap`: Ignores capitalized decorators (`@Decorator`) - `babel/object-curly-spacing`: doesn't complain about `export x from "mod";` or `export * as x from "mod";` (🛠 ) - `babel/no-invalid-this`: doesn't fail when inside class properties (`class A { a = this.b; }`) +- `babel/semi`: Includes class properties (🛠 ) The following rules are not in `eslint`, but are relevant only to syntax that is not specified by the current JavaScript standard or supported by `eslint`. diff --git a/index.js b/index.js index efba7b7..ffc2cf9 100644 --- a/index.js +++ b/index.js @@ -12,6 +12,7 @@ module.exports = { 'flow-object-type': require('./rules/flow-object-type'), 'func-params-comma-dangle': require('./rules/func-params-comma-dangle'), 'no-invalid-this': require('./rules/no-invalid-this'), + 'semi': require('./rules/semi'), }, rulesConfig: { 'generator-star-spacing': 0, @@ -24,5 +25,6 @@ module.exports = { 'flow-object-type': 0, 'func-params-comma-dangle': 0, 'no-invalid-this': 0, + 'semi': 0, } }; diff --git a/rules/semi.js b/rules/semi.js new file mode 100644 index 0000000..48bbb7e --- /dev/null +++ b/rules/semi.js @@ -0,0 +1,225 @@ +/** + * @fileoverview Rule to flag missing semicolons. + * @author Nicholas C. Zakas + */ +"use strict"; + +//------------------------------------------------------------------------------ +// Rule Definition +//------------------------------------------------------------------------------ + +module.exports = { + meta: { + docs: { + description: "require or disallow semicolons instead of ASI", + category: "Stylistic Issues", + recommended: false + }, + + fixable: "code", + + schema: { + anyOf: [ + { + type: "array", + items: [ + { + enum: ["never"] + } + ], + minItems: 0, + maxItems: 1 + }, + { + type: "array", + items: [ + { + enum: ["always"] + }, + { + type: "object", + properties: { + omitLastInOneLineBlock: { type: "boolean" } + }, + additionalProperties: false + } + ], + minItems: 0, + maxItems: 2 + } + ] + } + }, + + create(context) { + + const OPT_OUT_PATTERN = /^[-[(/+`]/; // One of [(/+-` + const options = context.options[1]; + const never = context.options[0] === "never", + exceptOneLine = options && options.omitLastInOneLineBlock === true, + sourceCode = context.getSourceCode(); + + //-------------------------------------------------------------------------- + // Helpers + //-------------------------------------------------------------------------- + + /** + * Reports a semicolon error with appropriate location and message. + * @param {ASTNode} node The node with an extra or missing semicolon. + * @param {boolean} missing True if the semicolon is missing. + * @returns {void} + */ + function report(node, missing) { + const lastToken = sourceCode.getLastToken(node); + let message, + fix, + loc = lastToken.loc; + + if (!missing) { + message = "Missing semicolon."; + loc = loc.end; + fix = function(fixer) { + return fixer.insertTextAfter(lastToken, ";"); + }; + } else { + message = "Extra semicolon."; + loc = loc.start; + fix = function(fixer) { + return fixer.remove(lastToken); + }; + } + + context.report({ + node, + loc, + message, + fix + }); + + } + + /** + * Checks whether a token is a semicolon punctuator. + * @param {Token} token The token. + * @returns {boolean} True if token is a semicolon punctuator. + */ + function isSemicolon(token) { + return (token.type === "Punctuator" && token.value === ";"); + } + + /** + * Check if a semicolon is unnecessary, only true if: + * - next token is on a new line and is not one of the opt-out tokens + * - next token is a valid statement divider + * @param {Token} lastToken last token of current node. + * @returns {boolean} whether the semicolon is unnecessary. + */ + function isUnnecessarySemicolon(lastToken) { + if (!isSemicolon(lastToken)) { + return false; + } + + const nextToken = sourceCode.getTokenAfter(lastToken); + + if (!nextToken) { + return true; + } + + const lastTokenLine = lastToken.loc.end.line; + const nextTokenLine = nextToken.loc.start.line; + const isOptOutToken = OPT_OUT_PATTERN.test(nextToken.value) && nextToken.value !== "++" && nextToken.value !== "--"; + const isDivider = (nextToken.value === "}" || nextToken.value === ";"); + + return (lastTokenLine !== nextTokenLine && !isOptOutToken) || isDivider; + } + + /** + * Checks a node to see if it's in a one-liner block statement. + * @param {ASTNode} node The node to check. + * @returns {boolean} whether the node is in a one-liner block statement. + */ + function isOneLinerBlock(node) { + const nextToken = sourceCode.getTokenAfter(node); + + if (!nextToken || nextToken.value !== "}") { + return false; + } + + const parent = node.parent; + + return parent && parent.type === "BlockStatement" && + parent.loc.start.line === parent.loc.end.line; + } + + /** + * Checks a node to see if it's followed by a semicolon. + * @param {ASTNode} node The node to check. + * @returns {void} + */ + function checkForSemicolon(node) { + const lastToken = sourceCode.getLastToken(node); + + if (never) { + if (isUnnecessarySemicolon(lastToken)) { + report(node, true); + } + } else { + if (!isSemicolon(lastToken)) { + if (!exceptOneLine || !isOneLinerBlock(node)) { + report(node); + } + } else { + if (exceptOneLine && isOneLinerBlock(node)) { + report(node, true); + } + } + } + } + + /** + * Checks to see if there's a semicolon after a variable declaration. + * @param {ASTNode} node The node to check. + * @returns {void} + */ + function checkForSemicolonForVariableDeclaration(node) { + const ancestors = context.getAncestors(), + parentIndex = ancestors.length - 1, + parent = ancestors[parentIndex]; + + if ((parent.type !== "ForStatement" || parent.init !== node) && + (!/^For(?:In|Of)Statement/.test(parent.type) || parent.left !== node) + ) { + checkForSemicolon(node); + } + } + + //-------------------------------------------------------------------------- + // Public API + //-------------------------------------------------------------------------- + + return { + VariableDeclaration: checkForSemicolonForVariableDeclaration, + ExpressionStatement: checkForSemicolon, + ReturnStatement: checkForSemicolon, + ThrowStatement: checkForSemicolon, + DoWhileStatement: checkForSemicolon, + DebuggerStatement: checkForSemicolon, + BreakStatement: checkForSemicolon, + ContinueStatement: checkForSemicolon, + ImportDeclaration: checkForSemicolon, + ExportAllDeclaration: checkForSemicolon, + ClassProperty: checkForSemicolon, + ExportNamedDeclaration(node) { + if (!node.declaration) { + checkForSemicolon(node); + } + }, + ExportDefaultDeclaration(node) { + if (!/(?:Class|Function)Declaration/.test(node.declaration.type)) { + checkForSemicolon(node); + } + } + }; + + } +}; diff --git a/tests/rules/semi.js b/tests/rules/semi.js new file mode 100644 index 0000000..3d146a1 --- /dev/null +++ b/tests/rules/semi.js @@ -0,0 +1,191 @@ +/* eslnit-disable */ +/** + * @fileoverview Tests for semi rule. + * @author Nicholas C. Zakas + */ + +"use strict"; + +//------------------------------------------------------------------------------ +// Requirements +//------------------------------------------------------------------------------ + +const rule = require("../../rules/semi"), + RuleTester = require("../RuleTester"); + +const ruleTester = new RuleTester(); + +ruleTester.run("semi", rule, { + valid: [ + "var x = 5;", + "var x =5, y;", + "foo();", + "x = foo();", + "setTimeout(function() {foo = \"bar\"; });", + "setTimeout(function() {foo = \"bar\";});", + "for (var a in b){}", + "for (var i;;){}", + "if (true) {}\n;[global, extended].forEach(function(){});", + "throw new Error('foo');", + { code: "throw new Error('foo')", options: ["never"] }, + { code: "var x = 5", options: ["never"] }, + { code: "var x =5, y", options: ["never"] }, + { code: "foo()", options: ["never"] }, + { code: "debugger", options: ["never"] }, + { code: "for (var a in b){}", options: ["never"] }, + { code: "for (var i;;){}", options: ["never"] }, + { code: "x = foo()", options: ["never"] }, + { code: "if (true) {}\n;[global, extended].forEach(function(){})", options: ["never"] }, + { code: "(function bar() {})\n;(function foo(){})", options: ["never"] }, + { code: ";/foo/.test('bar')", options: ["never"] }, + { code: ";+5", options: ["never"] }, + { code: ";-foo()", options: ["never"] }, + { code: "a++\nb++", options: ["never"] }, + { code: "a++; b++", options: ["never"] }, + { code: "for (let thing of {}) {\n console.log(thing);\n}", parserOptions: { ecmaVersion: 6 } }, + { code: "do{}while(true)", options: ["never"] }, + { code: "do{}while(true);", options: ["always"] }, + + { code: "if (foo) { bar() }", options: ["always", { omitLastInOneLineBlock: true }] }, + { code: "if (foo) { bar(); baz() }", options: ["always", { omitLastInOneLineBlock: true }] }, + + + // method definitions don't have a semicolon. + { code: "class A { a() {} b() {} }", parserOptions: { ecmaVersion: 6 } }, + { code: "var A = class { a() {} b() {} };", parserOptions: { ecmaVersion: 6 } }, + + { code: "import theDefault, { named1, named2 } from 'src/mylib';", parserOptions: { sourceType: "module" } }, + { code: "import theDefault, { named1, named2 } from 'src/mylib'", options: ["never"], parserOptions: { sourceType: "module" } }, + + // exports, "always" + { code: "export * from 'foo';", parserOptions: { sourceType: "module" } }, + { code: "export { foo } from 'foo';", parserOptions: { sourceType: "module" } }, + { code: "export { foo };", parserOptions: { sourceType: "module" } }, + { code: "export var foo;", parserOptions: { sourceType: "module" } }, + { code: "export function foo () { }", parserOptions: { sourceType: "module" } }, + { code: "export function* foo () { }", parserOptions: { sourceType: "module" } }, + { code: "export class Foo { }", parserOptions: { sourceType: "module" } }, + { code: "export let foo;", parserOptions: { sourceType: "module" } }, + { code: "export const FOO = 42;", parserOptions: { sourceType: "module" } }, + { code: "export default function() { }", parserOptions: { sourceType: "module" } }, + { code: "export default function* () { }", parserOptions: { sourceType: "module" } }, + { code: "export default class { }", parserOptions: { sourceType: "module" } }, + { code: "export default foo || bar;", parserOptions: { sourceType: "module" } }, + { code: "export default (foo) => foo.bar();", parserOptions: { sourceType: "module" } }, + { code: "export default foo = 42;", parserOptions: { sourceType: "module" } }, + { code: "export default foo += 42;", parserOptions: { sourceType: "module" } }, + + // exports, "never" + { code: "export * from 'foo'", options: ["never"], parserOptions: { sourceType: "module" } }, + { code: "export { foo } from 'foo'", options: ["never"], parserOptions: { sourceType: "module" } }, + { code: "export { foo }", options: ["never"], parserOptions: { sourceType: "module" } }, + { code: "export var foo", options: ["never"], parserOptions: { sourceType: "module" } }, + { code: "export function foo () { }", options: ["never"], parserOptions: { sourceType: "module" } }, + { code: "export function* foo () { }", options: ["never"], parserOptions: { sourceType: "module" } }, + { code: "export class Foo { }", options: ["never"], parserOptions: { sourceType: "module" } }, + { code: "export let foo", options: ["never"], parserOptions: { sourceType: "module" } }, + { code: "export const FOO = 42", options: ["never"], parserOptions: { sourceType: "module" } }, + { code: "export default function() { }", options: ["never"], parserOptions: { sourceType: "module" } }, + { code: "export default function* () { }", options: ["never"], parserOptions: { sourceType: "module" } }, + { code: "export default class { }", options: ["never"], parserOptions: { sourceType: "module" } }, + { code: "export default foo || bar", options: ["never"], parserOptions: { sourceType: "module" } }, + { code: "export default (foo) => foo.bar()", options: ["never"], parserOptions: { sourceType: "module" } }, + { code: "export default foo = 42", options: ["never"], parserOptions: { sourceType: "module" } }, + { code: "export default foo += 42", options: ["never"], parserOptions: { sourceType: "module" } }, + { code: "++\nfoo;", options: ["always"] }, + { code: "var a = b;\n+ c", options: ["never"] }, + + // https://github.com/eslint/eslint/issues/7782 + { code: "var a = b;\n/foo/.test(c)", options: ["never"] }, + { code: "var a = b;\n`foo`", options: ["never"], parserOptions: { ecmaVersion: 6 } }, + + // babel + "class Foo { bar = 'example'; }", + "class Foo { static bar = 'example'; }", + + // babel, "never" + { code: "class Foo { bar = 'example' }", options: ["never"] }, + { code: "class Foo { static bar = 'example' }", options: ["never"] } + ], + invalid: [ + { code: "import * as utils from './utils'", output: "import * as utils from './utils';", parserOptions: { sourceType: "module" }, errors: [{ message: "Missing semicolon.", type: "ImportDeclaration", column: 33 }] }, + { code: "import { square, diag } from 'lib'", output: "import { square, diag } from 'lib';", parserOptions: { sourceType: "module" }, errors: [{ message: "Missing semicolon.", type: "ImportDeclaration" }] }, + { code: "import { default as foo } from 'lib'", output: "import { default as foo } from 'lib';", parserOptions: { sourceType: "module" }, errors: [{ message: "Missing semicolon.", type: "ImportDeclaration" }] }, + { code: "import 'src/mylib'", output: "import 'src/mylib';", parserOptions: { sourceType: "module" }, errors: [{ message: "Missing semicolon.", type: "ImportDeclaration" }] }, + { code: "import theDefault, { named1, named2 } from 'src/mylib'", output: "import theDefault, { named1, named2 } from 'src/mylib';", parserOptions: { sourceType: "module" }, errors: [{ message: "Missing semicolon.", type: "ImportDeclaration" }] }, + { code: "function foo() { return [] }", output: "function foo() { return []; }", errors: [{ message: "Missing semicolon.", type: "ReturnStatement" }] }, + { code: "while(true) { break }", output: "while(true) { break; }", errors: [{ message: "Missing semicolon.", type: "BreakStatement" }] }, + { code: "while(true) { continue }", output: "while(true) { continue; }", errors: [{ message: "Missing semicolon.", type: "ContinueStatement" }] }, + { code: "let x = 5", output: "let x = 5;", parserOptions: { ecmaVersion: 6 }, errors: [{ message: "Missing semicolon.", type: "VariableDeclaration" }] }, + { code: "var x = 5", output: "var x = 5;", errors: [{ message: "Missing semicolon.", type: "VariableDeclaration" }] }, + { code: "var x = 5, y", output: "var x = 5, y;", errors: [{ message: "Missing semicolon.", type: "VariableDeclaration" }] }, + { code: "debugger", output: "debugger;", errors: [{ message: "Missing semicolon.", type: "DebuggerStatement" }] }, + { code: "foo()", output: "foo();", errors: [{ message: "Missing semicolon.", type: "ExpressionStatement" }] }, + { code: "var x = 5, y", output: "var x = 5, y;", errors: [{ message: "Missing semicolon.", type: "VariableDeclaration" }] }, + { code: "for (var a in b) var i ", output: "for (var a in b) var i; ", errors: [{ message: "Missing semicolon.", type: "VariableDeclaration" }] }, + { code: "for (;;){var i}", output: "for (;;){var i;}", errors: [{ message: "Missing semicolon.", type: "VariableDeclaration" }] }, + { code: "for (;;) var i ", output: "for (;;) var i; ", errors: [{ message: "Missing semicolon.", type: "VariableDeclaration" }] }, + { code: "for (var j;;) {var i}", output: "for (var j;;) {var i;}", errors: [{ message: "Missing semicolon.", type: "VariableDeclaration" }] }, + { code: "var foo = {\n bar: baz\n}", output: "var foo = {\n bar: baz\n};", errors: [{ message: "Missing semicolon.", type: "VariableDeclaration", line: 3 }] }, + { code: "var foo\nvar bar;", output: "var foo;\nvar bar;", errors: [{ message: "Missing semicolon.", type: "VariableDeclaration", line: 1 }] }, + { code: "throw new Error('foo')", output: "throw new Error('foo');", errors: [{ message: "Missing semicolon.", type: "ThrowStatement", line: 1 }] }, + { code: "do{}while(true)", output: "do{}while(true);", errors: [{ message: "Missing semicolon.", type: "DoWhileStatement", line: 1 }] }, + + { code: "throw new Error('foo');", output: "throw new Error('foo')", options: ["never"], errors: [{ message: "Extra semicolon.", type: "ThrowStatement", column: 23 }] }, + { code: "function foo() { return []; }", output: "function foo() { return [] }", options: ["never"], errors: [{ message: "Extra semicolon.", type: "ReturnStatement" }] }, + { code: "while(true) { break; }", output: "while(true) { break }", options: ["never"], errors: [{ message: "Extra semicolon.", type: "BreakStatement" }] }, + { code: "while(true) { continue; }", output: "while(true) { continue }", options: ["never"], errors: [{ message: "Extra semicolon.", type: "ContinueStatement" }] }, + { code: "let x = 5;", output: "let x = 5", parserOptions: { ecmaVersion: 6 }, options: ["never"], errors: [{ message: "Extra semicolon.", type: "VariableDeclaration" }] }, + { code: "var x = 5;", output: "var x = 5", options: ["never"], errors: [{ message: "Extra semicolon.", type: "VariableDeclaration" }] }, + { code: "var x = 5, y;", output: "var x = 5, y", options: ["never"], errors: [{ message: "Extra semicolon.", type: "VariableDeclaration" }] }, + { code: "debugger;", output: "debugger", options: ["never"], errors: [{ message: "Extra semicolon.", type: "DebuggerStatement" }] }, + { code: "foo();", output: "foo()", options: ["never"], errors: [{ message: "Extra semicolon.", type: "ExpressionStatement" }] }, + { code: "var x = 5, y;", output: "var x = 5, y", options: ["never"], errors: [{ message: "Extra semicolon.", type: "VariableDeclaration" }] }, + { code: "for (var a in b) var i; ", output: "for (var a in b) var i ", options: ["never"], errors: [{ message: "Extra semicolon.", type: "VariableDeclaration" }] }, + { code: "for (;;){var i;}", output: "for (;;){var i}", options: ["never"], errors: [{ message: "Extra semicolon.", type: "VariableDeclaration" }] }, + { code: "for (;;) var i; ", output: "for (;;) var i ", options: ["never"], errors: [{ message: "Extra semicolon.", type: "VariableDeclaration" }] }, + { code: "for (var j;;) {var i;}", output: "for (var j;;) {var i}", options: ["never"], errors: [{ message: "Extra semicolon.", type: "VariableDeclaration" }] }, + { code: "var foo = {\n bar: baz\n};", output: "var foo = {\n bar: baz\n}", options: ["never"], errors: [{ message: "Extra semicolon.", type: "VariableDeclaration", line: 3 }] }, + { code: "import theDefault, { named1, named2 } from 'src/mylib';", output: "import theDefault, { named1, named2 } from 'src/mylib'", options: ["never"], parserOptions: { sourceType: "module" }, errors: [{ message: "Extra semicolon.", type: "ImportDeclaration" }] }, + { code: "do{}while(true);", output: "do{}while(true)", options: ["never"], errors: [{ message: "Extra semicolon.", type: "DoWhileStatement", line: 1 }] }, + + { code: "if (foo) { bar()\n }", options: ["always", { omitLastInOneLineBlock: true }], errors: [{ message: "Missing semicolon." }] }, + { code: "if (foo) {\n bar() }", options: ["always", { omitLastInOneLineBlock: true }], errors: [{ message: "Missing semicolon." }] }, + { code: "if (foo) {\n bar(); baz() }", options: ["always", { omitLastInOneLineBlock: true }], errors: [{ message: "Missing semicolon." }] }, + { code: "if (foo) { bar(); }", options: ["always", { omitLastInOneLineBlock: true }], errors: [{ message: "Extra semicolon." }] }, + + + // exports, "always" + { code: "export * from 'foo'", output: "export * from 'foo';", parserOptions: { sourceType: "module" }, errors: [{ message: "Missing semicolon.", type: "ExportAllDeclaration" }] }, + { code: "export { foo } from 'foo'", output: "export { foo } from 'foo';", parserOptions: { sourceType: "module" }, errors: [{ message: "Missing semicolon.", type: "ExportNamedDeclaration" }] }, + { code: "export { foo }", output: "export { foo };", parserOptions: { sourceType: "module" }, errors: [{ message: "Missing semicolon.", type: "ExportNamedDeclaration" }] }, + { code: "export var foo", output: "export var foo;", parserOptions: { sourceType: "module" }, errors: [{ message: "Missing semicolon.", type: "VariableDeclaration" }] }, + { code: "export let foo", output: "export let foo;", parserOptions: { sourceType: "module" }, errors: [{ message: "Missing semicolon.", type: "VariableDeclaration" }] }, + { code: "export const FOO = 42", output: "export const FOO = 42;", parserOptions: { sourceType: "module" }, errors: [{ message: "Missing semicolon.", type: "VariableDeclaration" }] }, + { code: "export default foo || bar", output: "export default foo || bar;", parserOptions: { sourceType: "module" }, errors: [{ message: "Missing semicolon.", type: "ExportDefaultDeclaration" }] }, + { code: "export default (foo) => foo.bar()", output: "export default (foo) => foo.bar();", parserOptions: { sourceType: "module" }, errors: [{ message: "Missing semicolon.", type: "ExportDefaultDeclaration" }] }, + { code: "export default foo = 42", output: "export default foo = 42;", parserOptions: { sourceType: "module" }, errors: [{ message: "Missing semicolon.", type: "ExportDefaultDeclaration" }] }, + { code: "export default foo += 42", output: "export default foo += 42;", parserOptions: { sourceType: "module" }, errors: [{ message: "Missing semicolon.", type: "ExportDefaultDeclaration" }] }, + + // exports, "never" + { code: "export * from 'foo';", output: "export * from 'foo'", options: ["never"], parserOptions: { sourceType: "module" }, errors: [{ message: "Extra semicolon.", type: "ExportAllDeclaration" }] }, + { code: "export { foo } from 'foo';", output: "export { foo } from 'foo'", options: ["never"], parserOptions: { sourceType: "module" }, errors: [{ message: "Extra semicolon.", type: "ExportNamedDeclaration" }] }, + { code: "export { foo };", output: "export { foo }", options: ["never"], parserOptions: { sourceType: "module" }, errors: [{ message: "Extra semicolon.", type: "ExportNamedDeclaration" }] }, + { code: "export var foo;", output: "export var foo", options: ["never"], parserOptions: { sourceType: "module" }, errors: [{ message: "Extra semicolon.", type: "VariableDeclaration" }] }, + { code: "export let foo;", output: "export let foo", options: ["never"], parserOptions: { sourceType: "module" }, errors: [{ message: "Extra semicolon.", type: "VariableDeclaration" }] }, + { code: "export const FOO = 42;", output: "export const FOO = 42", options: ["never"], parserOptions: { sourceType: "module" }, errors: [{ message: "Extra semicolon.", type: "VariableDeclaration" }] }, + { code: "export default foo || bar;", output: "export default foo || bar", options: ["never"], parserOptions: { sourceType: "module" }, errors: [{ message: "Extra semicolon.", type: "ExportDefaultDeclaration" }] }, + { code: "export default (foo) => foo.bar();", output: "export default (foo) => foo.bar()", options: ["never"], parserOptions: { sourceType: "module" }, errors: [{ message: "Extra semicolon.", type: "ExportDefaultDeclaration" }] }, + { code: "export default foo = 42;", output: "export default foo = 42", options: ["never"], parserOptions: { sourceType: "module" }, errors: [{ message: "Extra semicolon.", type: "ExportDefaultDeclaration" }] }, + { code: "export default foo += 42;", output: "export default foo += 42", options: ["never"], parserOptions: { sourceType: "module" }, errors: [{ message: "Extra semicolon.", type: "ExportDefaultDeclaration" }] }, + { code: "a;\n++b", output: "a\n++b", options: ["never"], errors: [{ message: "Extra semicolon." }] }, + + // babel + { code: "class Foo { bar = 'example' }", errors: [{ message: "Missing semicolon." }] }, + { code: "class Foo { static bar = 'example' }", errors: [{ message: "Missing semicolon." }] }, + + // babel, "never" + { code: "class Foo { bar = 'example'; }", options: ["never"], errors: [{ message: "Extra semicolon." }] }, + { code: "class Foo { static bar = 'example'; }", options: ["never"], errors: [{ message: "Extra semicolon." }] } + ] +});