Support newer TypeScript syntax (#410)

package.json

@@ -24,15 +24,15 @@
   "author": "Felix Kling",
   "license": "MIT",
   "dependencies": {
-    "@babel/core": "^7.1.6",
-    "@babel/parser": "^7.1.6",
-    "@babel/plugin-proposal-class-properties": "^7.1.0",
-    "@babel/plugin-proposal-nullish-coalescing-operator": "^7.1.0",
-    "@babel/plugin-proposal-optional-chaining": "^7.1.0",
-    "@babel/plugin-transform-modules-commonjs": "^7.1.0",
-    "@babel/preset-flow": "^7.0.0",
-    "@babel/preset-typescript": "^7.1.0",
-    "@babel/register": "^7.0.0",
+    "@babel/core": "^7.13.16",
+    "@babel/parser": "^7.13.16",
+    "@babel/plugin-proposal-class-properties": "^7.13.0",
+    "@babel/plugin-proposal-nullish-coalescing-operator": "^7.13.8",
+    "@babel/plugin-proposal-optional-chaining": "^7.13.12",
+    "@babel/plugin-transform-modules-commonjs": "^7.13.8",
+    "@babel/preset-flow": "^7.13.13",
+    "@babel/preset-typescript": "^7.13.0",
+    "@babel/register": "^7.13.16",
     "babel-core": "^7.0.0-bridge.0",
     "colors": "^1.1.2",
     "flow-parser": "0.*",

parser/babel5Compat.js

@@ -33,6 +33,7 @@ const options = {
     'dynamicImport',
     'nullishCoalescingOperator',
     'optionalChaining',
+    ['decorators', {decoratorsBeforeExport: false}],
   ],
 };
 

sample/__testfixtures__/reverse-identifiers.input.js

@@ -1,3 +1,8 @@
 var firstWord = 'Hello ';
 var secondWord = 'world';
 var message = firstWord + secondWord;
+
+class Foo {
+  @decorated
+  *bar() { }
+}

sample/__testfixtures__/reverse-identifiers.output.js

@@ -1,3 +1,8 @@
 var droWtsrif = 'Hello ';
 var droWdnoces = 'world';
 var egassem = droWtsrif + droWdnoces;
+
+class ooF {
+  @detaroced
+  *rab() { }
+}

sample/__testfixtures__/typescript/reverse-identifiers.input.ts

@@ -1,3 +1,5 @@
+import type { Stream } from 'stream';
+
 const firstWord = 'Hello ';
 const secondWord = 'world';
 const message = firstWord + secondWord;

sample/__testfixtures__/typescript/reverse-identifiers.output.ts

@@ -1,5 +1,7 @@
+import type { maertS } from 'stream';
+
 const droWtsrif = 'Hello ';
 const droWdnoces = 'world';
 const egassem = droWtsrif + droWdnoces;
 
-const egasseMteg = (): string => egassem
+const egasseMteg = (): string => egassem

src/collections/__tests__/VariableDeclarator-test.js

@@ -29,7 +29,7 @@ describe('VariableDeclarators', function() {
       'var foo = 42;',
       'var bar = require("module");',
       'var baz = require("module2");',
-      'function func() {',
+      'function first() {',
       '  var x = bar;',
       '  bar.someMethod();',
       '  func1(bar);',
@@ -40,7 +40,7 @@ describe('VariableDeclarators', function() {
       'foo.bar();',
       'foo[bar]();',
       'bar.foo();',
-      'function func() {',
+      'function second() {',
       '  var blah;',
       '  var obj = {',
       '    blah: 4,',
@@ -52,6 +52,7 @@ describe('VariableDeclarators', function() {
       '    blah() {}',
       '  }',
       '}',
+      'class Foo { @decorator\n*stuff() {} }',
       '<Component foo={foo} />',
     ].join('\n'), {parser: getParser()}).program];
   });