| /* |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| package org.apache.flex.abc.visitors; |
| |
| import org.apache.flex.abc.graph.IBasicBlock; |
| import org.apache.flex.abc.semantics.Instruction; |
| |
| /** |
| * A IFlowGraphVisitor defines the behavior of a visitor over a control flow |
| * graph. |
| */ |
| public interface IFlowGraphVisitor |
| { |
| /** |
| * Visit a new Block. |
| * |
| * @param b - the Block to visit. |
| * @return true if the walker should continue visiting the block. |
| */ |
| boolean visitBlock(IBasicBlock b); |
| |
| /** |
| * Finish visiting a Block. |
| * |
| * @param b - the Block. It must be the same block last visited by |
| * visitBlock() where that call returned true. |
| */ |
| void visitEnd(IBasicBlock b); |
| |
| /** |
| * Visit an Instruction within the most recently-visited Block. |
| * |
| * @param insn - the Instruction. |
| */ |
| void visitInstruction(Instruction insn); |
| } |