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1 /*
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2 * Copyright 1999-2001 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 // ciSymbol
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26 //
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27 // This class represents a symbolOop in the HotSpot virtual
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28 // machine.
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29 class ciSymbol : public ciObject {
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30 CI_PACKAGE_ACCESS
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31 friend class ciEnv;
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32 friend class ciInstanceKlass;
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33 friend class ciSignature;
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34 friend class ciMethod;
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35 friend class ciObjArrayKlass;
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36
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37 private:
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38 ciSymbol(symbolOop s) : ciObject(s) {}
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39 ciSymbol(symbolHandle s); // for use with vmSymbolHandles
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40
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41 symbolOop get_symbolOop() { return (symbolOop)get_oop(); }
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42
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43 const char* type_string() { return "ciSymbol"; }
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44
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45 void print_impl(outputStream* st);
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46
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47 int byte_at(int i);
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48 jbyte* base();
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49
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50 // Make a ciSymbol from a C string (implementation).
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51 static ciSymbol* make_impl(const char* s);
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52
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53 public:
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54 // The text of the symbol as a null-terminated utf8 string.
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55 const char* as_utf8();
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56 int utf8_length();
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57
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58 // What kind of ciObject is this?
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59 bool is_symbol() { return true; }
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60
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61 void print_symbol_on(outputStream* st);
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62 void print_symbol() {
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63 print_symbol_on(tty);
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64 }
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65
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66 // Make a ciSymbol from a C string.
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67 // Consider adding to vmSymbols.hpp instead of using this constructor.
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68 // (Your code will be less subject to typographical bugs.)
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69 static ciSymbol* make(const char* s);
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70
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71 #define CI_SYMBOL_DECLARE(name, ignore_def) \
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72 static ciSymbol* name() { return ciObjectFactory::vm_symbol_at(vmSymbols::VM_SYMBOL_ENUM_NAME(name)); }
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73 VM_SYMBOLS_DO(CI_SYMBOL_DECLARE, CI_SYMBOL_DECLARE)
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74 #undef CI_SYMBOL_DECLARE
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75 };
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