/*
    * Copyright (c) 2006 JMockit developers
    * This file is subject to the terms of the MIT license (see LICENSE.txt).
    */
   package mockit.internal.expectations.argumentMatching;
   
   import edu.umd.cs.findbugs.annotations.NonNull;
   import edu.umd.cs.findbugs.annotations.Nullable;
   
  import java.util.regex.Pattern;
  
  public final class PatternMatcher implements ArgumentMatcher<PatternMatcher> {
      @NonNull
      private final Pattern pattern;
  
      public PatternMatcher(@NonNull String regex) {
          pattern = Pattern.compile(regex);
      }
  
      @Override
      public boolean same(@NonNull PatternMatcher other) {
          return pattern == other.pattern;
      }
  
      @Override
      public boolean matches(@Nullable Object argValue) {
          return argValue instanceof CharSequence && pattern.matcher((CharSequence) argValue).matches();
      }
  
      @Override
      public void writeMismatchPhrase(@NonNull ArgumentMismatch argumentMismatch) {
          argumentMismatch.append("a string matching \"").append(pattern.toString()).append('"');
      }
  }