1 /* 2 * Copyright (C) 2007-2010 Júlio Vilmar Gesser. 3 * Copyright (C) 2011, 2013-2017 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 22 package com.github.javaparser.ast.nodeTypes; 23 24 import com.github.javaparser.ast.expr.Expression; 25 26 import java.util.Optional; 27 28 /** 29 * Represents a node which has a scope expression that can be traversed/walked. 30 * This unifies scope access for NodeWithScope and NodeWithOptionalScope. 31 */ 32 public interface NodeWithTraversableScope { 33 34 /** 35 * @return the scope of this node, regardless of optionality. 36 * An optional scope is returned directly. 37 * A required scope is returned in an "Optional", but will never be empty. 38 */ traverseScope()39 Optional<Expression> traverseScope(); 40 } 41