1 /*

     2  * Copyright (c) 1999, 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_CI_CISYMBOLKLASS_HPP

    26 #define SHARE_VM_CI_CISYMBOLKLASS_HPP

    27 

    28 #include "ci/ciKlass.hpp"

    29 #include "ci/ciSymbol.hpp"

    30 

    31 // ciSymbolKlass

    32 //

    33 // This class represents a klassOop in the HotSpot virtual machine

    34 // whose Klass part in a symbolKlass.  Although, in the VM

    35 // Klass hierarchy, symbolKlass is a direct subclass of typeArrayKlass,

    36 // we do not model this relationship in the ciObject hierarchy -- the

    37 // subclassing is used to share implementation and is not of note

    38 // to compiler writers.

    39 class ciSymbolKlass : public ciKlass {

    40   CI_PACKAGE_ACCESS

    41 

    42 protected:

    43   ciSymbolKlass(KlassHandle h_k)

    44     : ciKlass(h_k, ciSymbol::make("unique_symbolKlass")) {

    45     assert(get_Klass()->oop_is_symbol(), "wrong type");

    46   }

    47 

    48   symbolKlass* get_symbolKlass() { return (symbolKlass*)get_Klass(); }

    49 

    50   const char* type_string() { return "ciSymbolKlass"; }

    51 

    52 public:

    53   // What kind of ciObject is this?

    54   bool is_symbol_klass() { return true; }

    55 

    56   // Return the distinguished ciSymbolKlass instance.

    57   static ciSymbolKlass* make();

    58 };

    59 

    60 #endif // SHARE_VM_CI_CISYMBOLKLASS_HPP