ts-creator

ts-creator

A code generator to generate TypeScript code generator from TypeScript code

How to use it:

npm install ts-creator

1. generate from code

import creator from 'ts-creator'

const generatedFactoryCode = creator(`const foo = "your code here"`)

2. transform source file

import { transformSourceFile } from 'ts-creator'

declare const file: ts.SourceFile
const factoryFile = transformSourceFile(file)

3. transform node

import { transformNode } from 'ts-creator'

declare const node: ts.Expression
const factoryNode = transformNode(node)

How does it work?

If you want to write a TypeScript codegen.

You got TypeScript code:

function foo(bar: number): number {
  return bar + 1
}

ts-creator generate TypeScript factory from given code to:

ts.createFunctionDeclaration(
  undefined,
  undefined,
  undefined,
  ts.createIdentifier('foo'),
  undefined,
  [
    ts.createParameter(
      undefined,
      undefined,
      undefined,
      ts.createIdentifier('bar'),
      undefined,
      ts.createKeywordTypeNode(ts.SyntaxKind.NumberKeyword),
      undefined
    )
  ],
  ts.createKeywordTypeNode(ts.SyntaxKind.NumberKeyword),
  ts.createBlock(
    [
      ts.createReturn(
        ts.createBinary(
          ts.createIdentifier('bar'),
          ts.createToken(ts.SyntaxKind.PlusToken),
          ts.createNumericLiteral('1')
        )
      )
    ],
    true
  )
)

Result after run the generated factory code:

function foo(bar: number): number {
    return bar + 1;
}

TODO:

• JSDoc