@cureapp/babel-plugin-flow-to-typescript

Babel plugin to convert Flow code into TypeScript

How to use

$ yarn global add @babel/cli 
$ yarn add @cureapp/babel-plugin-flow-to-typescript

# you must use babel@^7.x.x
$ babel --version 
7.0.0-beta.44 (@babel/core 7.0.0-beta.44)

$ babel --plugins @cureapp/babel-plugin-flow-to-typescript ${SRC_FLOW_FILE} -o ${DEST_TS_FILE}

Implementation status

| Supported? | Syntax | Flow | TypeScript | |---|---|---|---| | ❎ | Maybe type | let a:?number | let a: number \| null \| undefined | | ❎ | Void type | void | void | | ❎ | Mixed type | mixed | {} | | | Function type | (A, B) => C | (a: A, b: B) => C | | ❎ | Exact type | {\| a: A \|} | { a: A } | | ❎ | Indexers | { [A]: B } | { [a: A]: B } | | ❎ | Existential type | Map<*, *> | Map<any, any> | | ❎ | Opaque types | opaque type A = B | type A = B | | ❎ | Variance | interface A { +b: B, -c: C } | interface A { readonly b: B, c: C } | | ❎ | Type parameter bounds | function f<A: string>(a:A){} | function f<A extends string>(a:A){} | | ❎ | Cast | (a: A) | (a as A) | | ❎ | type/typeof import | import type A from 'module' | import A from 'module' | | ❎ | $Keys | $Keys<X> | keyof X | | ❎ | $Values | $Values<X> | X[keyof X] | | ❎ | $ReadOnly | $Readonly<X> | Readonly<X> | | ❎ | $Exact| $Exact<X> | X | | ❎ | $Diff| $Diff<X, Y> | Pick<X, Exclude<keyof X, keyof Y>> | | ❎ | $PropertyType| $PropertyType<T, k> | T[k] | | ❎ | $ElementType| $ElementType<T, k> | T[k] | | ❎ | $Shape| $Shape<T> | Partial<T> | | ❎ | Class| Class<T> | typeof T |

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