Method asError

common/src/main/java/com/google/auto/common/MoreTypes.java:632–634

Returns a ExecutableType if the TypeMirror represents an executable type such as may result from missing code, or bad compiles or throws an IllegalArgumentException.

(TypeMirror maybeErrorType)

   * as may result from missing code, or bad compiles or throws an {@link IllegalArgumentException}.
   */
  public static ErrorType asError(TypeMirror maybeErrorType) {
    return maybeErrorType.accept(ErrorTypeVisitor.INSTANCE, null);
  }

  private static final class ErrorTypeVisitor extends CastingTypeVisitor<ErrorType> {
    private static final ErrorTypeVisitor INSTANCE = new ErrorTypeVisitor();