How to use

isThisExpression

function

in

@babel/types

// https://developer.mozilla.org/en-US/docs/web/javascript/reference/statements/export
// Work in progress

// e.g.
// foo.bar.baz('something')
// callee = foo.bar.baz (MemberExpression)
// returns = foo
const getRootObject = (callee, depth = 0) => {
 // TODO: Find a test case for this
 if (!_.isObject(callee)) return {};
 if (callee.object === undefined) {
  return { name: callee.name, depth };
 }
 if (t.isThisExpression(callee.object)) {
  return { name: 'this', depth };
 }

 return getRootObject(callee.object, depth + 1);
}

MemberExpression(path, scope) {
  const { node } = path;
  if (
   (t.isIdentifier(node.property) &&
    (t.isThisExpression(node.object) &&
     (node.property.name === "props" ||
      node.property.name === "state"))) ||
   (t.isIdentifier(node.object) && scope.hasOwnBinding(node.object.name))
  ) {
   throw path.buildCodeFrameError(
    `Expected a constant ` +
     `as part of the template literal expression ` +
     `(eg: <style jsx>{\`p { color: $\{myColor}\`}</style>), ` +
     `but got a MemberExpression: this.${node.property.name}`
   );
  }
 }