1/* 2 * Copyright (C) 2007-2010 Júlio Vilmar Gesser. 3 * Copyright (C) 2011, 2013-2016 The JavaParser Team. 4 * 5 * This file is part of JavaParser. 6 * 7 * JavaParser can be used either under the terms of 8 * a) the GNU Lesser General Public License as published by 9 * the Free Software Foundation, either version 3 of the License, or 10 * (at your option) any later version. 11 * b) the terms of the Apache License 12 * 13 * You should have received a copy of both licenses in LICENCE.LGPL and 14 * LICENCE.APACHE. Please refer to those files for details. 15 * 16 * JavaParser is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 * GNU Lesser General Public License for more details. 20 */ 21 22package com.github.javaparser.ast.type; 23 24import com.github.javaparser.ast.expr.AnnotationExpr; 25import com.github.javaparser.ast.visitor.GenericVisitor; 26import com.github.javaparser.ast.visitor.VoidVisitor; 27 28import java.util.List; 29 30/** 31 * An unknown parameter type object. It plays the role of a null object for 32 * lambda parameters that have no explicit type declared. As such, it has no 33 * lexical representation and hence gets no comment attributed. 34 * 35 * @author Didier Villevalois 36 */ 37public final class UnknownType extends Type<UnknownType> { 38 39 public UnknownType() { 40 } 41 42 @Override 43 public <R, A> R accept(final GenericVisitor<R, A> v, final A arg) { 44 return v.visit(this, arg); 45 } 46 47 @Override 48 public <A> void accept(final VoidVisitor<A> v, final A arg) { 49 v.visit(this, arg); 50 } 51 52 @Override 53 public List<AnnotationExpr> getAnnotations() { 54 throw new IllegalStateException("Inferred lambda types cannot be annotated."); 55 } 56 57 @Override 58 public UnknownType setAnnotations(List<AnnotationExpr> annotations) { 59 throw new IllegalStateException("Inferred lambda types cannot be annotated."); 60 } 61 62} 63