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comparison src/share/vm/ci/ciSymbol.hpp @ 2181:d25d4ca69222

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Merge.
author Thomas Wuerthinger <wuerthinger@ssw.jku.at>
date Wed, 16 Feb 2011 13:47:20 +0100
parents 06f017f7daa7 3582bf76420e
children 9569fdf936ff
comparison
equal deleted inserted replaced
2108:50b45e2d9725 2181:d25d4ca69222
26 #define SHARE_VM_CI_CISYMBOL_HPP 26 #define SHARE_VM_CI_CISYMBOL_HPP
27 27
28 #include "ci/ciObject.hpp" 28 #include "ci/ciObject.hpp"
29 #include "ci/ciObjectFactory.hpp" 29 #include "ci/ciObjectFactory.hpp"
30 #include "classfile/vmSymbols.hpp" 30 #include "classfile/vmSymbols.hpp"
31 #include "oops/symbolOop.hpp" 31 #include "oops/symbol.hpp"
32 32
33 // ciSymbol 33 // ciSymbol
34 // 34 //
35 // This class represents a symbolOop in the HotSpot virtual 35 // This class represents a Symbol* in the HotSpot virtual
36 // machine. 36 // machine.
37 class ciSymbol : public ciObject { 37 class ciSymbol : public ResourceObj {
38 Symbol* _symbol;
39 uint _ident;
40
38 CI_PACKAGE_ACCESS 41 CI_PACKAGE_ACCESS
39 // These friends all make direct use of get_symbolOop: 42 // These friends all make direct use of get_symbol:
40 friend class ciEnv; 43 friend class ciEnv;
41 friend class ciInstanceKlass; 44 friend class ciInstanceKlass;
42 friend class ciSignature; 45 friend class ciSignature;
43 friend class ciMethod; 46 friend class ciMethod;
44 friend class ciObjArrayKlass; 47 friend class ciObjArrayKlass;
45 48
46 private: 49 private:
47 const vmSymbols::SID _sid; 50 const vmSymbols::SID _sid;
48 DEBUG_ONLY( bool sid_ok() { return vmSymbols::find_sid(get_symbolOop()) == _sid; } ) 51 DEBUG_ONLY( bool sid_ok() { return vmSymbols::find_sid(get_symbol()) == _sid; } )
49 52
50 ciSymbol(symbolOop s); // normal case, for symbols not mentioned in vmSymbols 53 ciSymbol(Symbol* s); // normal case, for symbols not mentioned in vmSymbols
51 ciSymbol(symbolHandle s, vmSymbols::SID sid); // for use with vmSymbolHandles 54 ciSymbol(Symbol* s, vmSymbols::SID sid); // for use with vmSymbols
55
56 Symbol* get_symbol() const { return _symbol; }
52 57
53 public: 58 public:
54 symbolOop get_symbolOop() const { return (symbolOop)get_oop(); } 59 symbolOop get_symbolOop() const { return (symbolOop)get_oop(); }
55 60
56 private: 61 private:
57 const char* type_string() { return "ciSymbol"; } 62 const char* type_string() { return "ciSymbol"; }
58 63
59 void print_impl(outputStream* st); 64 void print_impl(outputStream* st);
60 65
61 // This is public in symbolOop but private here, because the base can move: 66 // This is public in Symbol* but private here, because the base can move:
62 jbyte* base(); 67 const jbyte* base();
63 68
64 // Make a ciSymbol from a C string (implementation). 69 // Make a ciSymbol from a C string (implementation).
65 static ciSymbol* make_impl(const char* s); 70 static ciSymbol* make_impl(const char* s);
66 71
72 void set_ident(uint id) { _ident = id; }
67 public: 73 public:
74 // A number unique to this object.
75 uint ident() { return _ident; }
76
68 // The enumeration ID from vmSymbols, or vmSymbols::NO_SID if none. 77 // The enumeration ID from vmSymbols, or vmSymbols::NO_SID if none.
69 vmSymbols::SID sid() const { return _sid; } 78 vmSymbols::SID sid() const { return _sid; }
70 79
71 // The text of the symbol as a null-terminated utf8 string. 80 // The text of the symbol as a null-terminated utf8 string.
72 const char* as_utf8(); 81 const char* as_utf8();
79 bool starts_with(const char* prefix, int len) const; 88 bool starts_with(const char* prefix, int len) const;
80 89
81 // Determines where the symbol contains the given substring. 90 // Determines where the symbol contains the given substring.
82 int index_of_at(int i, const char* str, int len) const; 91 int index_of_at(int i, const char* str, int len) const;
83 92
84 // What kind of ciObject is this?
85 bool is_symbol() { return true; }
86
87 void print_symbol_on(outputStream* st); 93 void print_symbol_on(outputStream* st);
88 void print_symbol() { 94 void print_symbol() {
89 print_symbol_on(tty); 95 print_symbol_on(tty);
90 } 96 }
91 97
96 102
97 #define CI_SYMBOL_DECLARE(name, ignore_def) \ 103 #define CI_SYMBOL_DECLARE(name, ignore_def) \
98 static ciSymbol* name() { return ciObjectFactory::vm_symbol_at(vmSymbols::VM_SYMBOL_ENUM_NAME(name)); } 104 static ciSymbol* name() { return ciObjectFactory::vm_symbol_at(vmSymbols::VM_SYMBOL_ENUM_NAME(name)); }
99 VM_SYMBOLS_DO(CI_SYMBOL_DECLARE, CI_SYMBOL_DECLARE) 105 VM_SYMBOLS_DO(CI_SYMBOL_DECLARE, CI_SYMBOL_DECLARE)
100 #undef CI_SYMBOL_DECLARE 106 #undef CI_SYMBOL_DECLARE
107
108 void print() {
109 _symbol->print();
110 }
111
112 // Are two ciSymbols equal?
113 bool equals(ciSymbol* obj) { return this->_symbol == obj->get_symbol(); }
101 }; 114 };
102 115
103 #endif // SHARE_VM_CI_CISYMBOL_HPP 116 #endif // SHARE_VM_CI_CISYMBOL_HPP