/*

 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

// ciCPCache

//

// This class represents a constant pool cache.

//

// Note: This class is called ciCPCache as ciConstantPoolCache is used

// for something different.

class ciCPCache : public ciObject {

private:

  constantPoolCacheOop get_cpCacheOop() {   // must be called inside a VM_ENTRY_MARK

    return (constantPoolCacheOop) get_oop();

  }

  ConstantPoolCacheEntry* entry_at(int i) {

    int raw_index = i;

    if (constantPoolCacheOopDesc::is_secondary_index(i))

      raw_index = constantPoolCacheOopDesc::decode_secondary_index(i);

    return get_cpCacheOop()->entry_at(raw_index);

  }

public:

  ciCPCache(constantPoolCacheHandle cpcache) : ciObject(cpcache) {}

  // What kind of ciObject is this?

  bool is_cpcache() const { return true; }

  // Get the offset in bytes from the oop to the f1 field of the

  // requested entry.

  size_t get_f1_offset(int index);

  bool is_f1_null_at(int index);

  int get_pool_index(int index);

  void print();

};