Function updateToClass

transforms/class.js:1076–1119

(classPath)

    });

  const updateToClass = (classPath) => {
    const specPath = ReactUtils.directlyGetCreateClassSpec(classPath);
    const name = ReactUtils.directlyGetComponentName(classPath);
    const statics = collectStatics(specPath);
    const properties = collectNonStaticProperties(specPath);
    const comments = getComments(classPath);

    const getInitialState = findGetInitialState(specPath);

    var path = classPath;

    if (
      classPath.parentPath &&
      classPath.parentPath.value &&
      classPath.parentPath.value.type === 'VariableDeclarator'
    ) {
      // the reason that we need to do this awkward dance here is that
      // for things like `var Foo = React.createClass({...})`, we need to
      // replace the _entire_ VariableDeclaration with
      // `class Foo extends React.Component {...}`.
      // it looks scary but since we already know it's a VariableDeclarator
      // it's actually safe.
      // (VariableDeclaration > declarations > VariableDeclarator > CallExpression)
      path = classPath.parentPath.parentPath.parentPath;
    }

    const staticProperties = createStaticClassProperties(statics);
    const baseClassName =
      pureRenderMixinPathAndBinding &&
      ReactUtils.directlyHasSpecificMixins(classPath, [pureRenderMixinPathAndBinding.binding]) ?
        'PureComponent' :
        'Component';

    j(path).replaceWith(
      createESClass(
        name,
        baseClassName,
        staticProperties,
        getInitialState,
        properties,
        comments
      )
    );
  };

  const addDisplayName = (displayName, specPath) => {
    const props = specPath.properties;