41
42 // Rehashing support for tables containing pointers to this
43 unsigned int new_hash(juint seed) { ShouldNotReachHere(); return 0; }
44
45 virtual bool is_metadata() const volatile { return true; }
46 virtual bool is_klass() const volatile { return false; }
47 virtual bool is_method() const volatile { return false; }
48 virtual bool is_methodData() const volatile { return false; }
49 virtual bool is_constantPool() const volatile { return false; }
50
51 virtual const char* internal_name() const = 0;
52
53 void print() const { print_on(tty); }
54 void print_value() const { print_value_on(tty); }
55
56 void print_maybe_null() const { print_on_maybe_null(tty); }
57 void print_on_maybe_null(outputStream* st) const {
58 if (this == NULL)
59 st->print("NULL");
60 else
61 print_on(tty);
62 }
63 void print_value_on_maybe_null(outputStream* st) const {
64 if (this == NULL)
65 st->print("NULL");
66 else
67 print_value_on(tty);
68 }
69
70 virtual void print_on(outputStream* st) const; // First level print
71 virtual void print_value_on(outputStream* st) const = 0; // Second level print
72
73 char* print_value_string() const;
74
75 // Used to keep metadata alive during class redefinition
76 // Can't assert because is called for delete functions (as an assert)
77 virtual bool on_stack() const { return false; }
78 virtual void set_on_stack(const bool value);
79
80 // Set on_stack bit, so that the metadata is not cleared
81 // during class redefinition. This is a virtual call because only methods
82 // and constant pools need to be set, but someday instanceKlasses might also.
83 static void mark_on_stack(Metadata* m) { m->set_on_stack(true); }
84 };
85
86 #endif // SHARE_VM_OOPS_METADATA_HPP
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41
42 // Rehashing support for tables containing pointers to this
43 unsigned int new_hash(juint seed) { ShouldNotReachHere(); return 0; }
44
45 virtual bool is_metadata() const volatile { return true; }
46 virtual bool is_klass() const volatile { return false; }
47 virtual bool is_method() const volatile { return false; }
48 virtual bool is_methodData() const volatile { return false; }
49 virtual bool is_constantPool() const volatile { return false; }
50
51 virtual const char* internal_name() const = 0;
52
53 void print() const { print_on(tty); }
54 void print_value() const { print_value_on(tty); }
55
56 void print_maybe_null() const { print_on_maybe_null(tty); }
57 void print_on_maybe_null(outputStream* st) const {
58 if (this == NULL)
59 st->print("NULL");
60 else
61 print_on(st);
62 }
63 void print_value_on_maybe_null(outputStream* st) const {
64 if (this == NULL)
65 st->print("NULL");
66 else
67 print_value_on(st);
68 }
69
70 virtual void print_on(outputStream* st) const; // First level print
71 virtual void print_value_on(outputStream* st) const = 0; // Second level print
72
73 char* print_value_string() const;
74
75 // Used to keep metadata alive during class redefinition
76 // Can't assert because is called for delete functions (as an assert)
77 virtual bool on_stack() const { return false; }
78 virtual void set_on_stack(const bool value);
79
80 // Set on_stack bit, so that the metadata is not cleared
81 // during class redefinition. This is a virtual call because only methods
82 // and constant pools need to be set, but someday instanceKlasses might also.
83 static void mark_on_stack(Metadata* m) { m->set_on_stack(true); }
84 };
85
86 #endif // SHARE_VM_OOPS_METADATA_HPP
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