src/share/vm/ci/ciSymbol.hpp

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   1 /*
   2  * Copyright (c) 1999, 2009, 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 // ciSymbol
  26 //
  27 // This class represents a symbolOop in the HotSpot virtual
  28 // machine.
  29 class ciSymbol : public ciObject {
  30   CI_PACKAGE_ACCESS
  31   // These friends all make direct use of get_symbolOop:
  32   friend class ciEnv;
  33   friend class ciInstanceKlass;
  34   friend class ciSignature;
  35   friend class ciMethod;
  36   friend class ciObjArrayKlass;
  37 
  38 private:
  39   const vmSymbols::SID _sid;
  40   DEBUG_ONLY( bool sid_ok() { return vmSymbols::find_sid(get_symbolOop()) == _sid; } )
  41 
  42   ciSymbol(symbolOop s);  // normal case, for symbols not mentioned in vmSymbols
  43   ciSymbol(symbolHandle s, vmSymbols::SID sid);   // for use with vmSymbolHandles
  44 


  72   int index_of_at(int i, const char* str, int len) const;
  73 
  74   // What kind of ciObject is this?
  75   bool is_symbol() { return true; }
  76 
  77   void print_symbol_on(outputStream* st);
  78   void print_symbol() {
  79     print_symbol_on(tty);
  80   }
  81 
  82   // Make a ciSymbol from a C string.
  83   // Consider adding to vmSymbols.hpp instead of using this constructor.
  84   // (Your code will be less subject to typographical bugs.)
  85   static ciSymbol* make(const char* s);
  86 
  87 #define CI_SYMBOL_DECLARE(name, ignore_def) \
  88   static ciSymbol* name() { return ciObjectFactory::vm_symbol_at(vmSymbols::VM_SYMBOL_ENUM_NAME(name)); }
  89   VM_SYMBOLS_DO(CI_SYMBOL_DECLARE, CI_SYMBOL_DECLARE)
  90 #undef CI_SYMBOL_DECLARE
  91 };


   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_CISYMBOL_HPP
  26 #define SHARE_VM_CI_CISYMBOL_HPP
  27 
  28 #include "ci/ciObject.hpp"
  29 #include "ci/ciObjectFactory.hpp"
  30 #include "classfile/vmSymbols.hpp"
  31 #include "oops/symbolOop.hpp"
  32 
  33 // ciSymbol
  34 //
  35 // This class represents a symbolOop in the HotSpot virtual
  36 // machine.
  37 class ciSymbol : public ciObject {
  38   CI_PACKAGE_ACCESS
  39   // These friends all make direct use of get_symbolOop:
  40   friend class ciEnv;
  41   friend class ciInstanceKlass;
  42   friend class ciSignature;
  43   friend class ciMethod;
  44   friend class ciObjArrayKlass;
  45 
  46 private:
  47   const vmSymbols::SID _sid;
  48   DEBUG_ONLY( bool sid_ok() { return vmSymbols::find_sid(get_symbolOop()) == _sid; } )
  49 
  50   ciSymbol(symbolOop s);  // normal case, for symbols not mentioned in vmSymbols
  51   ciSymbol(symbolHandle s, vmSymbols::SID sid);   // for use with vmSymbolHandles
  52 


  80   int index_of_at(int i, const char* str, int len) const;
  81 
  82   // What kind of ciObject is this?
  83   bool is_symbol() { return true; }
  84 
  85   void print_symbol_on(outputStream* st);
  86   void print_symbol() {
  87     print_symbol_on(tty);
  88   }
  89 
  90   // Make a ciSymbol from a C string.
  91   // Consider adding to vmSymbols.hpp instead of using this constructor.
  92   // (Your code will be less subject to typographical bugs.)
  93   static ciSymbol* make(const char* s);
  94 
  95 #define CI_SYMBOL_DECLARE(name, ignore_def) \
  96   static ciSymbol* name() { return ciObjectFactory::vm_symbol_at(vmSymbols::VM_SYMBOL_ENUM_NAME(name)); }
  97   VM_SYMBOLS_DO(CI_SYMBOL_DECLARE, CI_SYMBOL_DECLARE)
  98 #undef CI_SYMBOL_DECLARE
  99 };
 100 
 101 #endif // SHARE_VM_CI_CISYMBOL_HPP