.gitignore

node_modules/

package.json

{
  "name": "transform-react-constant-elements",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "babel test.js"
  },
  "babel": {
    "presets": ["react"],
    "plugins": [
      "transform-react-constant-elements"
    ]
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "babel-cli": "^6.18.0",
    "babel-plugin-transform-react-constant-elements": "^6.9.1",
    "babel-preset-react": "^6.16.0"
  }
}

test.js

const ComponentA = () => <div><MyCustomComponent /></div>;

➜  npm test

> [email protected] test /Users/koba04/transform-react-constant-elements
> babel test.js

var _ref = React.createElement(
  "div",
  null,
  React.createElement(MyCustomComponent, null)
);

const ComponentA = () => _ref;