jdk8-mips64-public/hotspot: src/share/vm/ci/ciInstance.hpp@4ce7240d622c

     1 /*

     2  * Copyright 1999-2005 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  *

    23  */

    25 // ciInstance

    26 //

    27 // This class represents an instanceOop in the HotSpot virtual

    28 // machine.  This is an oop which corresponds to a non-array

    29 // instance of java.lang.Object.

    30 class ciInstance : public ciObject {

    31   CI_PACKAGE_ACCESS

    33 protected:

    34   ciInstance(instanceHandle h_i) : ciObject(h_i) {

    35     assert(h_i()->is_instance(), "wrong type");

    36   }

    38   ciInstance(ciKlass* klass) : ciObject(klass) {}

    40   instanceOop get_instanceOop() { return (instanceOop)get_oop(); }

    42   const char* type_string() { return "ciInstance"; }

    44   void print_impl(outputStream* st);

    46 public:

    47   // If this object is a java mirror, return the corresponding type.

    48   // Otherwise, return NULL.

    49   // (Remember that a java mirror is an instance of java.lang.Class.)

    50   ciType* java_mirror_type();

    52   // What kind of ciObject is this?

    53   bool is_instance()     { return true; }

    54   bool is_java_object()  { return true; }

    56   // Constant value of a field.

    57   ciConstant field_value(ciField* field);

    59   // Constant value of a field at the specified offset.

    60   ciConstant field_value_by_offset(int field_offset);

    61 };

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