code: /**
   * Copyright (c) 2005, Regents of the University of California
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * Redistributions of source code must retain the above copyright notice,
   * this list of conditions and the following disclaimer.
   *
   * Redistributions in binary form must reproduce the above copyright
   * notice, this list of conditions and the following disclaimer in the
   * documentation and/or other materials provided with the distribution.
   *
   * Neither the name of the University of California, Los Angeles nor the
   * names of its contributors may be used to endorse or promote products
   * derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   * Creation date: Nov 3, 2005
   */
  
  package jintgen.isdl.verifier;
  
  import jintgen.isdl.*;
  import jintgen.isdl.parser.Token;
  import jintgen.jigir.JIGIRTypeEnv;
  import java.util.HashMap;
  import java.util.List;
  
  /**
   * @author Ben L. Titzer
   */
  public abstract class VerifierPass {
  
      protected final ArchDecl arch;
      protected final JIGIRErrorReporter ERROR;
      protected final JIGIRTypeEnv typeEnv;
  
      protected VerifierPass(ArchDecl a) {
          arch = a;
          ERROR = a.ERROR;
          typeEnv = a.typeEnv;
      }
  
      public abstract void verify();
  
      protected void uniqueCheck(String type, String name, Iterable<? extends Item> it) {
          HashMap<String, Token> items = new HashMap<String, Token>();
          for ( Item i : it ) {
              String nm = i.name.image;
              if ( items.containsKey(nm) )
                  ERROR.redefined(type, name, items.get(nm), i.name);
              items.put(nm, i.name);
          }
      }
  
      protected void resolveOperandTypes(List<AddrModeDecl.Operand> operands) {
          HashMap<String, Token> set = new HashMap<String, Token>();
          for ( AddrModeDecl.Operand o : operands ) {
              if ( set.containsKey(o.name.image) )
                  ERROR.RedefinedOperand(o.name, set.get(o.name.image));
              set.put(o.name.image, o.name);
              o.typeRef.resolve(typeEnv);
          }
      }
  }
  