/*

 * Copyright 2007, 2008, 2009, 2010 Red Hat, Inc.

 * 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.

 *

 *

 */

// A frame represents a physical stack frame on the Zero stack.

 public:

  enum {

    pc_return_offset = 0

  };

  // Constructor

 public:

  frame(ZeroFrame* zeroframe, intptr_t* sp);

 private:

  ZeroFrame* _zeroframe;

 public:

  const ZeroFrame *zeroframe() const {

    return _zeroframe;

  }

  intptr_t* fp() const {

    return (intptr_t *) zeroframe();

  }

#ifdef CC_INTERP

  inline interpreterState get_interpreterState() const;

#endif // CC_INTERP

 public:

  const EntryFrame *zero_entryframe() const {

    return zeroframe()->as_entry_frame();

  }

  const InterpreterFrame *zero_interpreterframe() const {

    return zeroframe()->as_interpreter_frame();

  }

  const SharkFrame *zero_sharkframe() const {

    return zeroframe()->as_shark_frame();

  }

 public:

  bool is_fake_stub_frame() const;

 public:

  frame sender_for_nonentry_frame(RegisterMap* map) const;

 public:

  void zero_print_on_error(int           index,

                           outputStream* st,

                           char*         buf,

                           int           buflen) const;