src/share/vm/ci/ciSymbolKlass.hpp

Mon, 26 Apr 2010 23:59:45 -0700

author
never
date
Mon, 26 Apr 2010 23:59:45 -0700
changeset 1832
b4776199210f
parent 435
a61af66fc99e
child 1907
c18cbe5936b8
permissions
-rw-r--r--

6943485: JVMTI always on capabilities change code generation too much
Reviewed-by: twisti, dcubed

     1 /*
     2  * Copyright 1999-2001 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 // ciSymbolKlass
    26 //
    27 // This class represents a klassOop in the HotSpot virtual machine
    28 // whose Klass part in a symbolKlass.  Although, in the VM
    29 // Klass hierarchy, symbolKlass is a direct subclass of typeArrayKlass,
    30 // we do not model this relationship in the ciObject hierarchy -- the
    31 // subclassing is used to share implementation and is not of note
    32 // to compiler writers.
    33 class ciSymbolKlass : public ciKlass {
    34   CI_PACKAGE_ACCESS
    36 protected:
    37   ciSymbolKlass(KlassHandle h_k)
    38     : ciKlass(h_k, ciSymbol::make("unique_symbolKlass")) {
    39     assert(get_Klass()->oop_is_symbol(), "wrong type");
    40   }
    42   symbolKlass* get_symbolKlass() { return (symbolKlass*)get_Klass(); }
    44   const char* type_string() { return "ciSymbolKlass"; }
    46 public:
    47   // What kind of ciObject is this?
    48   bool is_symbol_klass() { return true; }
    50   // Return the distinguished ciSymbolKlass instance.
    51   static ciSymbolKlass* make();
    52 };

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