com.ibm.wala.ssa.ISSABasicBlock Maven / Gradle / Ivy

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/*
 * Copyright (c) 2002 - 2006 IBM Corporation.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 */
package com.ibm.wala.ssa;

import com.ibm.wala.cfg.ControlFlowGraph;
import com.ibm.wala.cfg.IBasicBlock;
import com.ibm.wala.types.TypeReference;
import java.util.Iterator;

/** Common interface to all SSA BasicBlocks */
public interface ISSABasicBlock extends IBasicBlock {

  /** Is this block a catch block */
  @Override
  boolean isCatchBlock();

  /** Does this block represent the unique exit from a {@link ControlFlowGraph}? */
  @Override
  boolean isExitBlock();

  /** Does this block represent the unique entry to a {@link ControlFlowGraph} */
  @Override
  boolean isEntryBlock();

  /**
   * @return the phi instructions incoming to this block
   */
  Iterator iteratePhis();

  /**
   * @return the pi instructions incoming to this block
   */
  Iterator iteratePis();

  /**
   * @return the last instruction in this block.
   */
  SSAInstruction getLastInstruction();

  /**
   * @return the set of exception types this block may catch.
   */
  Iterator getCaughtExceptionTypes();
}