Method asNoType

common/src/main/java/com/google/auto/common/MoreTypes.java:695–697

Returns a NoType if the TypeMirror represents an non-type such as void, or package, etc. or throws an IllegalArgumentException.

(TypeMirror maybeNoType)

   * package, etc. or throws an {@link IllegalArgumentException}.
   */
  public static NoType asNoType(TypeMirror maybeNoType) {
    return maybeNoType.accept(NoTypeVisitor.INSTANCE, null);
  }

  private static final class NoTypeVisitor extends CastingTypeVisitor<NoType> {
    private static final NoTypeVisitor INSTANCE = new NoTypeVisitor();