1 /*

     2  * Copyright (c) 2001, 2010, 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 #ifndef SHARE_VM_RUNTIME_STACKVALUECOLLECTION_HPP

    26 #define SHARE_VM_RUNTIME_STACKVALUECOLLECTION_HPP

    27 

    28 #include "memory/allocation.hpp"

    29 #include "runtime/stackValue.hpp"

    30 #include "utilities/growableArray.hpp"

    31 

    32 class StackValueCollection : public ResourceObj {

    33  private:

    34   GrowableArray<StackValue*>* _values;

    35 

    36  public:

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

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

    39 

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

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

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

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

    44 

    45   // Get typed locals/expressions

    46   jint  int_at(int slot) const;

    47   jlong long_at(int slot) const;

    48   Handle obj_at(int slot) const;

    49   jfloat  float_at(int slot) const;

    50   jdouble double_at(int slot) const;

    51 

    52   // Set typed locals/expressions

    53   void set_int_at(int slot, jint value);

    54   void set_long_at(int slot, jlong value);

    55   void set_obj_at(int slot, Handle value);

    56   void set_float_at(int slot, jfloat value);

    57   void set_double_at(int slot, jdouble value);

    58 

    59   void print();

    60 };

    61 

    62 #endif // SHARE_VM_RUNTIME_STACKVALUECOLLECTION_HPP