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  */

    24 

    25 // ciSymbol

    26 //

    27 // This class represents a symbolOop in the HotSpot virtual

    28 // machine.

    29 class ciSymbol : public ciObject {

    30   CI_PACKAGE_ACCESS

    31   friend class ciEnv;

    32   friend class ciInstanceKlass;

    33   friend class ciSignature;

    34   friend class ciMethod;

    35   friend class ciObjArrayKlass;

    36 

    37 private:

    38   ciSymbol(symbolOop s) : ciObject(s) {}

    39   ciSymbol(symbolHandle s);   // for use with vmSymbolHandles

    40 

    41   symbolOop get_symbolOop() { return (symbolOop)get_oop(); }

    42 

    43   const char* type_string() { return "ciSymbol"; }

    44 

    45   void print_impl(outputStream* st);

    46 

    47   int         byte_at(int i);

    48   jbyte*      base();

    49 

    50   // Make a ciSymbol from a C string (implementation).

    51   static ciSymbol* make_impl(const char* s);

    52 

    53 public:

    54   // The text of the symbol as a null-terminated utf8 string.

    55   const char* as_utf8();

    56   int         utf8_length();

    57 

    58   // What kind of ciObject is this?

    59   bool is_symbol() { return true; }

    60 

    61   void print_symbol_on(outputStream* st);

    62   void print_symbol() {

    63     print_symbol_on(tty);

    64   }

    65 

    66   // Make a ciSymbol from a C string.

    67   // Consider adding to vmSymbols.hpp instead of using this constructor.

    68   // (Your code will be less subject to typographical bugs.)

    69   static ciSymbol* make(const char* s);

    70 

    71 #define CI_SYMBOL_DECLARE(name, ignore_def) \

    72   static ciSymbol* name() { return ciObjectFactory::vm_symbol_at(vmSymbols::VM_SYMBOL_ENUM_NAME(name)); }

    73   VM_SYMBOLS_DO(CI_SYMBOL_DECLARE, CI_SYMBOL_DECLARE)

    74 #undef CI_SYMBOL_DECLARE

    75 };