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Java example source code file (stackValueCollection.hpp)

This example Java source code file (stackValueCollection.hpp) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

growablearray, handle, resourceobj, share_vm_runtime_stackvaluecollection_hpp, stackvaluecollection

The stackValueCollection.hpp Java example source code

/*
 * Copyright (c) 2001, 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
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

#ifndef SHARE_VM_RUNTIME_STACKVALUECOLLECTION_HPP
#define SHARE_VM_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_VM_RUNTIME_STACKVALUECOLLECTION_HPP

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