Add ClassProperty support to semi rule

Fixes #43

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
   }
 }
 ```
@@ -50,6 +51,7 @@ The following rules are not in `eslint`, but are relevant only to syntax that is
 the current JavaScript standard or supported by `eslint`.
 
 - `babel/no-await-in-loop`: guard against awaiting async functions inside of a loop
+- `babel/semi`: Includes class properties
 
 #### Deprecated
 

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,
   }
 };

rules/semi.js

@@ -208,6 +208,7 @@ module.exports = {
             ContinueStatement: checkForSemicolon,
             ImportDeclaration: checkForSemicolon,
             ExportAllDeclaration: checkForSemicolon,
+            ClassProperty: checkForSemicolon,
             ExportNamedDeclaration(node) {
                 if (!node.declaration) {
                     checkForSemicolon(node);

tests/rules/semi.js

@@ -97,7 +97,15 @@ ruleTester.run("semi", rule, {
 
         // 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 } }
+        { 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 }] },
@@ -170,6 +178,14 @@ ruleTester.run("semi", rule, {
         { 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." }] }
+        { 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." }] }
     ]
 });