Upgrade to TypeScript 2.4

README.md

@@ -18,12 +18,12 @@ Transforms React code written in JavaScript to TypeScript.
 ```jsx
 class MyComponent extends React.Component {
   static propTypes = {
-    p: React.PropTypes.string.isRequired,
-    r: React.PropTypes.number
+    prop1: React.PropTypes.string.isRequired,
+    prop2: React.PropTypes.number
   }
   constructor() {
     super();
-    this.state = { foo: 1, bar: 2 };
+    this.state = { foo: 1, bar: 'str' };
   }
   render() {
     return <div>{this.state.foo}, {this.state.bar}, {this.state.baz}</div>
@@ -36,18 +36,18 @@ class MyComponent extends React.Component {
 
 **output**
 ```tsx
-interface IMyComponentProps {
-  p: string;
-  r: number | undefined;
+type MyComponentProps = {
+  prop1: string;
+  prop2: number | undefined;
 }
 
-interface IMyComponentState {
+type MyComponentState = {
   foo: number;
   bar: string;
   baz: number | undefined;
 }
 
-class MyComponent extends React.Component<IMyComponentProps, IMyComponentState> {
+class MyComponent extends React.Component<MyComponentProps, MyComponentState> {
   constructor() {
     super();
     this.state = { foo: 1, bar: 'str' };

package.json

@@ -1,13 +1,14 @@
 {
   "name": "react-js-to-ts",
-  "version": "1.0.2",
+  "version": "1.1.0",
   "description": "Convert React code from JavaScript to TypeScript",
   "main": "dist/index.js",
   "scripts": {
     "pretest": "npm run build",
     "test": "jest",
     "coverage": "jest --coverage",
     "posttest": "npm run lint",
+    "prelint": "npm run clean",
     "lint": "tslint --type-check --project tsconfig.json --format codeFrame --exclude test/**/*.tsx",
     "prepublish": "npm run build",
     "clean": "rm -rf dist",
@@ -30,20 +31,20 @@
   "license": "Apache-2.0",
   "dependencies": {
     "chalk": "^1.1.3",
-    "commander": "^2.9.0",
+    "commander": "^2.10.0",
     "glob": "^7.1.2",
-    "typescript": "^2.3.2"
+    "typescript": "^2.4.0"
   },
   "devDependencies": {
     "@types/chalk": "^0.4.31",
-    "@types/commander": "^2.9.0",
+    "@types/commander": "^2.9.1",
     "@types/glob": "^5.0.30",
-    "@types/jest": "^19.2.3",
-    "@types/node": "^7.0.12",
-    "@types/react": "^15.0.21",
-    "jest": "^20.0.0",
-    "ts-jest": "^20.0.1",
-    "ts-node": "^3.0.2",
+    "@types/jest": "^20.0.2",
+    "@types/node": "^8.0.2",
+    "@types/react": "^15.0.31",
+    "jest": "^20.0.4",
+    "ts-jest": "^20.0.6",
+    "ts-node": "^3.1.0",
     "tslint": "^5.2.0"
   }
 }

src/compiler.ts

@@ -28,8 +28,10 @@ export function compile(filePath: string, factoryFactories: TransformFactoryFact
         ======================= Diagnostics for ${filePath} =======================
         `));
         for (const diag of result.diagnostics) {
-            const pos = diag.file.getLineAndCharacterOfPosition(diag.start);
-            console.log(`(${pos.line}, ${pos.character}) ${diag.messageText}`)
+            if (diag.file && diag.start) {
+                const pos = diag.file.getLineAndCharacterOfPosition(diag.start);
+                console.log(`(${pos.line}, ${pos.character}) ${diag.messageText}`)
+            }
         }
     }
 

src/helpers/index.ts

@@ -43,22 +43,6 @@ export function isReactComponent(classDeclaration: ts.ClassDeclaration, typeChec
     return true;
 }
 
-/**
- * A temporary hack until ts allows creating type alias declaration nodes
- * Creates a TypeAliasDeclaration
- * @param name Name of type node
- * @param type Type node
- * @param sourceFile SourceFile for context
- */
-export function createTypeDeclarationStatement(name: string, type: ts.TypeNode, sourceFile: ts.SourceFile) {
-    const printer = ts.createPrinter()
-    const typeString = printer.printNode(ts.EmitHint.Unspecified, type, sourceFile);
-    const newSource = ts.createSourceFile('temp.ts', `type ${name} = ${typeString}`, sourceFile.languageVersion);
-
-    return newSource.statements[0];
-}
-
-
 /**
  * Determine if a ts.HeritageClause is React HeritageClause
  *

src/transforms/collapse-intersection-interfaces-transform.ts

@@ -39,10 +39,12 @@ export function collapseIntersectionInterfacesTransformFactoryFactory(
                         .map((type: ts.TypeLiteralNode) => type.members)
                         .reduce((all, members) => ts.createNodeArray(all.concat(members)), ts.createNodeArray([]));
 
-                    return helpers.createTypeDeclarationStatement(
+                    return ts.createTypeAliasDeclaration(
+                        [],
+                        [],
                         node.name.text,
+                        [],
                         ts.createTypeLiteralNode(allMembers),
-                        sourceFile,
                     );
                 }
 

src/transforms/react-hoist-generics-transform.ts

@@ -54,10 +54,10 @@ function hoist(reactClass: ts.ClassDeclaration, sourceFile: ts.SourceFile) {
     }
 
     const [propType, stateType] = reactType.typeArguments;
-    const propTypeName = `I${className}Props`;
-    const stateTypeName = `I${className}State`;
-    const propTypeDeclaration = helpers.createTypeDeclarationStatement(propTypeName, propType, sourceFile);
-    const stateTypeDeclaration = helpers.createTypeDeclarationStatement(stateTypeName, stateType, sourceFile);
+    const propTypeName = `${className}Props`;
+    const stateTypeName = `${className}State`;
+    const propTypeDeclaration = ts.createTypeAliasDeclaration([], [], propTypeName, [], propType);
+    const stateTypeDeclaration = ts.createTypeAliasDeclaration([], [], stateTypeName, [], stateType);
     const propTypeRef = ts.createTypeReferenceNode(propTypeName, []);
     const stateTypeRef = ts.createTypeReferenceNode(stateTypeName, []);
     const newClassStatement = insertTypeRefs(reactClass, propTypeRef, stateTypeRef);

src/transforms/react-js-make-props-and-state-transform.ts

@@ -222,8 +222,8 @@ export function reactJSMakePropsAndStateInterfaceTransformFactoryFactory(typeChe
                             console.warn('Bad value for propType', name, 'at', propertyAssignment.getStart());
                             return result;
                         }
-                        const typeValue = getTypeFromReactPropTypeExpression(propertyAssignment.initializer)
-                        const propertySignature = ts.createPropertySignature(name, undefined, typeValue, undefined);
+                        const typeValue = getTypeFromReactPropTypeExpression(propertyAssignment.initializer);
+                        const propertySignature = ts.createPropertySignature([], name, undefined, typeValue, undefined);
                         result.members.push(propertySignature)
                         return result;
                 }, ts.createTypeLiteralNode([]));

test/collapse-intersection-interfaces-transform/empty-empty/output.tsx

@@ -1,3 +1 @@
-type Foo = {
-
-};
+type Foo = {};

test/end-to-end/basic/output.tsx

@@ -1,12 +1,10 @@
 import * as React from 'react';
 
-type IMyComponentProps = {
+type MyComponentProps = {};
+type MyComponentState = void;
 
-};
-type IMyComponentState = void;
-
-export default class MyComponent extends React.Component<IMyComponentProps, IMyComponentState> {
+export default class MyComponent extends React.Component<MyComponentProps, MyComponentState> {
     render() {
         return <div />;
     }
-}
+}

test/end-to-end/initial-state-and-proprypes-and-set-state/output.tsx

@@ -1,19 +1,19 @@
 import * as React from 'react';
 
-type IMyComponentProps = {
+type MyComponentProps = {
     baz: string;
 };
-type IMyComponentState = {
+type MyComponentState = {
     dynamicState: number;
     foo: number;
     bar: string;
 };
-export default class MyComponent extends React.Component<IMyComponentProps, IMyComponentState> {
+export default class MyComponent extends React.Component<MyComponentProps, MyComponentState> {
     state = { foo: 1, bar: 'str' };
     render() {
         return <div />;
     }
     otherFn() {
         this.setState({ dynamicState: 42 });
     }
-}
+}

test/end-to-end/initial-state-and-proprypes/output.tsx

@@ -1,15 +1,15 @@
 import * as React from 'react';
 
-type IMyComponentProps = {
+type MyComponentProps = {
     baz: string;
 };
-type IMyComponentState = {
+type MyComponentState = {
     foo: number;
     bar: string;
 };
-export default class MyComponent extends React.Component<IMyComponentProps, IMyComponentState> {
+export default class MyComponent extends React.Component<MyComponentProps, MyComponentState> {
     state = { foo: 1, bar: 'str' };
     render() {
         return <div />;
     }
-}
+}

test/react-hoist-generics-transform/propless-stateless/output.tsx

@@ -1,10 +1,8 @@
 import * as React from 'react';
 
-type IMyComponentProps = {
-
-};
-type IMyComponentState = void;
-export default class MyComponent extends React.Component<IMyComponentProps, IMyComponentState> {
+type MyComponentProps = {};
+type MyComponentState = void;
+export default class MyComponent extends React.Component<MyComponentProps, MyComponentState> {
     render() {
         return <div />;
     }

test/react-hoist-generics-transform/props-and-state/output.tsx

@@ -1,14 +1,14 @@
 import * as React from 'react';
 
-type IMyComponentProps = {
+type MyComponentProps = {
     foo: string;
     bar: object;
 };
-type IMyComponentState = {
+type MyComponentState = {
     baz: string;
     [k: string]: string;
 };
-export default class MyComponent extends React.Component<IMyComponentProps, IMyComponentState> {
+export default class MyComponent extends React.Component<MyComponentProps, MyComponentState> {
     render() {
         return <div />;
     }

test/react-js-make-props-and-state-transform/propless-stateless/output.tsx

@@ -1,8 +1,6 @@
 import * as React from 'react';
 
-export default class MyComponent extends React.Component<{
-
-    }, void> {
+export default class MyComponent extends React.Component<{}, void> {
     render() {
         return <div />;
     }

test/react-js-make-props-and-state-transform/set-state-advanced/output.tsx

@@ -1,20 +1,6 @@
 import * as React from 'react';
 
-export default class MyComponent extends React.Component<{
-    }, {
-        foo: number;
-        bar: number;
-    } & {
-        baz: number;
-    } & {
-        something: {
-            big: number;
-            here: string;
-            of: {
-                a: number;
-            }[];
-        };
-    }> {
+export default class MyComponent extends React.Component<{}, { foo: number; bar: number; } & { baz: number; } & { something: { big: number; here: string; of: { a: number; }[]; }; }> {
     render() {
         return <button onClick={this.onclick.bind(this)}/>;
     }
@@ -43,4 +29,4 @@ export default class MyComponent extends React.Component<{
             }
         });
     }
-}
+}

test/react-js-make-props-and-state-transform/set-state-only/output.tsx

@@ -1,16 +1,11 @@
 import * as React from 'react';
 
-export default class MyComponent extends React.Component<{
-    }, {
-        foo: number;
-        bar: number;
-    }> {
-
+export default class MyComponent extends React.Component<{}, { foo: number; bar: number; }> {
     render() {
         return <button onClick={this.onclick.bind(this)}/>;
     }
 
     onclick() {
         this.setState({ foo: 1, bar: 2 });
     }
-}
+}

test/react-js-make-props-and-state-transform/state-in-class-member/output.tsx

@@ -1,11 +1,8 @@
 import * as React from 'react';
 
-export default class MyComponent extends React.Component<{
-    }, {
-        foo: number;
-    }> {
+export default class MyComponent extends React.Component<{}, { foo: number; }> {
     state = { foo: 1 };
     render() {
         return <div />;
     }
-}
+}

test/react-js-make-props-and-state-transform/state-in-constructor/output.tsx

@@ -1,10 +1,6 @@
 import * as React from 'react';
 
-export default class MyComponent extends React.Component<{
-    }, {
-        foo: number;
-    }> {
-
+export default class MyComponent extends React.Component<{}, { foo: number; }> {
     constructor(props, context) {
         super(props, context);
         this.state = { foo: 1 };
@@ -13,4 +9,4 @@ export default class MyComponent extends React.Component<{
     render() {
         return <div />;
     }
-}
+}

test/react-js-make-props-and-state-transform/static-proptypes-many-props/output.tsx

@@ -4,11 +4,11 @@ export default class MyComponent extends React.Component<{
         any: any | undefined;
         array: any[] | undefined;
         bool: boolean | undefined;
-        func: (...args: any[]) => any | undefined;
+        func: ((...args: any[]) => any) | undefined;
         number: number | undefined;
         object: object | undefined;
         string: string | undefined;
-        node: number | string | JSX.Element | undefined;
+        node: (number | string | JSX.Element) | undefined;
         element: JSX.Element | undefined;
         anyRequired: any;
         arrayRequired: any[];
@@ -43,4 +43,4 @@ export default class MyComponent extends React.Component<{
     render() {
         return <div />;
     }
-}
+}