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/*
 * 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.
 *
 * This file is a derivative of code released under the terms listed below.
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 */
/*
 *
 * Copyright (c) 2009-2012,
 *
 *  Galois, Inc. (Aaron Tomb )
 *  Steve Suh           
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
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package org.scandroid.spec;

import com.ibm.wala.classLoader.IClass;
import com.ibm.wala.classLoader.IClassLoader;
import com.ibm.wala.classLoader.IField;
import com.ibm.wala.core.util.strings.Atom;
import com.ibm.wala.types.TypeName;
import java.util.ArrayList;
import java.util.Collection;

public class FieldNamePattern {
  final String className; // null = match any class

  final String memberName; // null = match any method

  // * used to match arbitrary substrings
  public FieldNamePattern(String c, String m) {
    className = c;
    memberName = m;
  }

  Collection lookupFields(IClassLoader cl) {
    Collection matching = new ArrayList<>();
    IClass c = cl.lookupClass(TypeName.findOrCreate(className));
    if (c == null) return matching;
    Atom atom = Atom.findOrCreateUnicodeAtom(memberName);
    Collection allFields = c.getAllFields();
    for (IField f : allFields) {
      if (f.getName().equals(atom)) {
        matching.add(f);
      }
    }
    return matching;
  }
}