Function createESClass

transforms/class.js:937–1014

(
    name,
    baseClassName,
    staticProperties,
    getInitialState,
    rawProperties,
    comments
  )

  // 2. there's a direct method call `this.x()`, or
  // 3. `this` is referenced alone
  const createESClass = (
    name,
    baseClassName,
    staticProperties,
    getInitialState,
    rawProperties,
    comments
  ) => {
    const initialStateProperty = [];
    let maybeConstructor = [];
    let maybeFlowStateAnnotation = []; // we only need this when we do `this.state = ...`

    if (isInitialStateLiftable(getInitialState)) {
      if (getInitialState) {
        initialStateProperty.push(convertInitialStateToClassProperty(getInitialState));
      }
    } else {
      maybeConstructor = createConstructor(getInitialState);
      if (shouldTransformFlow) {
        let stateType = j.typeAnnotation(
          j.existsTypeAnnotation()
        );

        if (getInitialState.value.returnType) {
          stateType = getInitialState.value.returnType;
        }

        maybeFlowStateAnnotation.push(j.classProperty(
          j.identifier('state'),
          null,
          stateType,
          false
        ));
      }
    }

    const propertiesAndMethods = rawProperties.map(prop => {
      if (isPrimPropertyWithTypeAnnotation(prop)) {
        return createClassPropertyWithType(prop);
      } else if (isPrimProperty(prop)) {
        return createClassProperty(prop);
      } else if (AUTOBIND_IGNORE_KEYS.hasOwnProperty(prop.key.name)) {
        return createMethodDefinition(prop);
      }

      return createArrowProperty(prop);
    });

    const flowPropsAnnotation = shouldTransformFlow ?
      createFlowAnnotationsFromPropTypesProperties(
        staticProperties.find((path) => path.key.name === 'propTypes')
      ) :
      [];

    let finalStaticProperties = staticProperties;

    if (shouldTransformFlow && options['remove-runtime-proptypes']) {
      finalStaticProperties = staticProperties.filter((prop) => prop.key.name !== 'propTypes');