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  $ npm install --global reasonably-typed

Converts TypeScript and Flow definitions to Reason interfaces
(Also maybe TypeScript definitions to Flow)


Take your Flow or TypeScript definition

// class.js
declare module 'classes' {
  declare type State = {
    id: number,
    storeName: string,
  }

  declare export class Store {
    constructor(initialState: State): Store;
    state: State;
    update(nextState: State): void;
  }
}

Run retyped

$ retyped class.js

Get Reason

/* Module classes */

type state = {. "id": float, "storeName": string };
module Store = {
  type t = {. "state": (state), "update": [@bs.meth](state => unit)};
  [@bs.new] [@bs.module "classes"] external make : state => t = "Store";
};

Docs

Examples

TypeScript

TypeScript has a similar workflow. Compile your TypeScript file with:

$ retyped my-definition.d.ts

Command-line Usage
Usage:
  $ retyped ...files

Examples:
  $ retyped file1.js file2.js file3.d.ts                                           [boolean]

Usage as a library ReasonablyTyped also exports a library for use! See the example below:
// lib-usage.js
import * as ReasonablyTyped from 'reasonably-typed'

const libSrc = fs.readFileSync('lib.js').toString()
const bsInterface = ReasonablyTyped.compile(libSrc)

format (code: string) => string

Formats a block of code using refmt

compile (code: string, filename?: string) => string

Compiles a libdef, formats the result, and handles errors cleanly

Development

See DEVELOPING and CONTRIBUTING.

Status

CircleCI