/*

 * Copyright (c) 2001, 2019, 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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 */

#ifndef SHARE_RUNTIME_STACKVALUECOLLECTION_HPP

#define SHARE_RUNTIME_STACKVALUECOLLECTION_HPP

#include "memory/allocation.hpp"

#include "runtime/stackValue.hpp"

#include "utilities/growableArray.hpp"

class StackValueCollection : public ResourceObj {

 private:

  GrowableArray<StackValue*>* _values;

 public:

  StackValueCollection()            { _values = new GrowableArray<StackValue*>(); }

  StackValueCollection(int length)  { _values = new GrowableArray<StackValue*>(length); }

  void add(StackValue *val) const   { _values->push(val); }

  int  size() const                 { return _values->length(); }

  bool is_empty() const             { return (size() == 0); }

  StackValue* at(int i) const       { return _values->at(i); }

  // Get typed locals/expressions

  jint  int_at(int slot) const;

  jlong long_at(int slot) const;

  Handle obj_at(int slot) const;

  jfloat  float_at(int slot) const;

  jdouble double_at(int slot) const;

  // Set typed locals/expressions

  void set_int_at(int slot, jint value);

  void set_long_at(int slot, jlong value);

  void set_obj_at(int slot, Handle value);

  void set_float_at(int slot, jfloat value);

  void set_double_at(int slot, jdouble value);

  void print();

};

#endif // SHARE_RUNTIME_STACKVALUECOLLECTION_HPP