1 /*
   2  * Copyright (c) 2001, 2002, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 class StackValueCollection : public ResourceObj {
  26  private:
  27   GrowableArray<StackValue*>* _values;
  28 
  29  public:
  30   StackValueCollection()            { _values = new GrowableArray<StackValue*>(); }
  31   StackValueCollection(int length)  { _values = new GrowableArray<StackValue*>(length); }
  32 
  33   void add(StackValue *val) const   { _values->push(val); }
  34   int  size() const                 { return _values->length(); }
  35   bool is_empty() const             { return (size() == 0); }
  36   StackValue* at(int i) const       { return _values->at(i); }
  37 
  38   // Get typed locals/expressions
  39   jint  int_at(int slot) const;
  40   jlong long_at(int slot) const;
  41   Handle obj_at(int slot) const;
  42   jfloat  float_at(int slot) const;
  43   jdouble double_at(int slot) const;
  44 
  45   // Set typed locals/expressions
  46   void set_int_at(int slot, jint value);
  47   void set_long_at(int slot, jlong value);
  48   void set_obj_at(int slot, Handle value);
  49   void set_float_at(int slot, jfloat value);
  50   void set_double_at(int slot, jdouble value);
  51 
  52   void print();
  53 };