silverstripe-framework/src/Forms/ReadonlyTransformation.php

<?php

namespace SilverStripe\Forms;

/**
 * Transformation that will turn a form into a readonly version of itself
 */
class ReadonlyTransformation extends FormTransformation
{
    // All of the ReadonlyTransformation's functionality is implemented in performReadonlyTransformation()
    // methods on the individual FormField objects.
}