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comparison src/share/vm/classfile/classFileParser.hpp @ 6222:6d8f36bcef55

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6711908: JVM needs direct access to some annotations Summary: Add annotation extraction code to class file parser. Reviewed-by: twisti, jrose, kvn Contributed-by: michael.haupt@oracle.com
author jrose
date Thu, 12 Jul 2012 00:39:53 -0700
parents 749b1464aa81
children 9c9fb30d2b3b
comparison
equal deleted inserted replaced
6207:ae9241bbce4a 6222:6d8f36bcef55
29 #include "memory/resourceArea.hpp" 29 #include "memory/resourceArea.hpp"
30 #include "oops/oop.inline.hpp" 30 #include "oops/oop.inline.hpp"
31 #include "oops/typeArrayOop.hpp" 31 #include "oops/typeArrayOop.hpp"
32 #include "runtime/handles.inline.hpp" 32 #include "runtime/handles.inline.hpp"
33 #include "utilities/accessFlags.hpp" 33 #include "utilities/accessFlags.hpp"
34 34 #include "classfile/symbolTable.hpp"
35 class TempNewSymbol; 35
36 class FieldAllocationCount; 36 class FieldAllocationCount;
37 37
38 38
39 // Parser for for .class files 39 // Parser for for .class files
40 // 40 //
48 u2 _minor_version; 48 u2 _minor_version;
49 Symbol* _class_name; 49 Symbol* _class_name;
50 KlassHandle _host_klass; 50 KlassHandle _host_klass;
51 GrowableArray<Handle>* _cp_patches; // overrides for CP entries 51 GrowableArray<Handle>* _cp_patches; // overrides for CP entries
52 52
53 // precomputed flags
53 bool _has_finalizer; 54 bool _has_finalizer;
54 bool _has_empty_finalizer; 55 bool _has_empty_finalizer;
55 bool _has_vanilla_constructor; 56 bool _has_vanilla_constructor;
56 57 int _max_bootstrap_specifier_index; // detects BSS values
57 int _max_bootstrap_specifier_index; 58
59 // class attributes parsed before the instance klass is created:
60 bool _synthetic_flag;
61 Symbol* _sourcefile;
62 Symbol* _generic_signature;
63 TempNewSymbol _sde_symbol;
64 typeArrayHandle _inner_classes;
65 typeArrayHandle _annotations;
66
67 void set_class_synthetic_flag(bool x) { _synthetic_flag = x; }
68 void set_class_sourcefile(Symbol* x) { _sourcefile = x; }
69 void set_class_generic_signature(Symbol* x) { _generic_signature = x; }
70 void set_class_sde_symbol(Symbol* x) { _sde_symbol = x; }
71 void set_class_inner_classes(typeArrayHandle x) { _inner_classes = x; }
72 void set_class_annotations(typeArrayHandle x) { _annotations = x; }
73 void init_parsed_class_attributes() {
74 _synthetic_flag = false;
75 _sourcefile = NULL;
76 _generic_signature = NULL;
77 // initialize the other flags too:
78 _has_finalizer = _has_empty_finalizer = _has_vanilla_constructor = false;
79 _max_bootstrap_specifier_index = -1;
80 }
81 void apply_parsed_class_attributes(instanceKlassHandle k); // update k
82
83 class AnnotationCollector {
84 public:
85 enum Location { _in_field, _in_method, _in_class };
86 enum ID {
87 _unknown = 0,
88 _method_ForceInline,
89 _annotation_LIMIT
90 };
91 const Location _location;
92 int _annotations_present;
93 AnnotationCollector(Location location)
94 : _location(location), _annotations_present(0)
95 {
96 assert((int)_annotation_LIMIT <= (int)sizeof(_annotations_present) * BitsPerByte, "");
97 }
98 // If this annotation name has an ID, report it (or _none).
99 ID annotation_index(Symbol* name);
100 // Set the annotation name:
101 void set_annotation(ID id) {
102 assert((int)id >= 0 && (int)id < (int)_annotation_LIMIT, "oob");
103 _annotations_present |= nth_bit((int)id);
104 }
105 // Report if the annotation is present.
106 bool has_any_annotations() { return _annotations_present != 0; }
107 bool has_annotation(ID id) { return (nth_bit((int)id) & _annotations_present) != 0; }
108 };
109 class FieldAnnotationCollector: public AnnotationCollector {
110 public:
111 FieldAnnotationCollector() : AnnotationCollector(_in_field) { }
112 void apply_to(FieldInfo* f);
113 };
114 class MethodAnnotationCollector: public AnnotationCollector {
115 public:
116 MethodAnnotationCollector() : AnnotationCollector(_in_method) { }
117 void apply_to(methodHandle m);
118 };
119 class ClassAnnotationCollector: public AnnotationCollector {
120 public:
121 ClassAnnotationCollector() : AnnotationCollector(_in_class) { }
122 void apply_to(instanceKlassHandle k);
123 };
58 124
59 enum { fixed_buffer_size = 128 }; 125 enum { fixed_buffer_size = 128 };
60 u_char linenumbertable_buffer[fixed_buffer_size]; 126 u_char linenumbertable_buffer[fixed_buffer_size];
61 127
62 ClassFileStream* _stream; // Actual input stream 128 ClassFileStream* _stream; // Actual input stream
85 void parse_field_attributes(constantPoolHandle cp, u2 attributes_count, 151 void parse_field_attributes(constantPoolHandle cp, u2 attributes_count,
86 bool is_static, u2 signature_index, 152 bool is_static, u2 signature_index,
87 u2* constantvalue_index_addr, 153 u2* constantvalue_index_addr,
88 bool* is_synthetic_addr, 154 bool* is_synthetic_addr,
89 u2* generic_signature_index_addr, 155 u2* generic_signature_index_addr,
90 typeArrayHandle* field_annotations, TRAPS); 156 typeArrayHandle* field_annotations,
157 FieldAnnotationCollector* parsed_annotations,
158 TRAPS);
91 typeArrayHandle parse_fields(Symbol* class_name, 159 typeArrayHandle parse_fields(Symbol* class_name,
92 constantPoolHandle cp, bool is_interface, 160 constantPoolHandle cp, bool is_interface,
93 FieldAllocationCount *fac, 161 FieldAllocationCount *fac,
94 objArrayHandle* fields_annotations, 162 objArrayHandle* fields_annotations,
95 u2* java_fields_count_ptr, TRAPS); 163 u2* java_fields_count_ptr, TRAPS);
126 void parse_type_array(u2 array_length, u4 code_length, u4* u1_index, u4* u2_index, 194 void parse_type_array(u2 array_length, u4 code_length, u4* u1_index, u4* u2_index,
127 u1* u1_array, u2* u2_array, constantPoolHandle cp, TRAPS); 195 u1* u1_array, u2* u2_array, constantPoolHandle cp, TRAPS);
128 typeArrayOop parse_stackmap_table(u4 code_attribute_length, TRAPS); 196 typeArrayOop parse_stackmap_table(u4 code_attribute_length, TRAPS);
129 197
130 // Classfile attribute parsing 198 // Classfile attribute parsing
131 void parse_classfile_sourcefile_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS); 199 void parse_classfile_sourcefile_attribute(constantPoolHandle cp, TRAPS);
132 void parse_classfile_source_debug_extension_attribute(constantPoolHandle cp, 200 void parse_classfile_source_debug_extension_attribute(constantPoolHandle cp, int length, TRAPS);
133 instanceKlassHandle k, int length, TRAPS);
134 u2 parse_classfile_inner_classes_attribute(u1* inner_classes_attribute_start, 201 u2 parse_classfile_inner_classes_attribute(u1* inner_classes_attribute_start,
135 bool parsed_enclosingmethod_attribute, 202 bool parsed_enclosingmethod_attribute,
136 u2 enclosing_method_class_index, 203 u2 enclosing_method_class_index,
137 u2 enclosing_method_method_index, 204 u2 enclosing_method_method_index,
138 constantPoolHandle cp, 205 constantPoolHandle cp,
139 instanceKlassHandle k, TRAPS); 206 TRAPS);
140 void parse_classfile_attributes(constantPoolHandle cp, instanceKlassHandle k, TRAPS); 207 void parse_classfile_attributes(constantPoolHandle cp,
141 void parse_classfile_synthetic_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS); 208 ClassAnnotationCollector* parsed_annotations,
142 void parse_classfile_signature_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS); 209 TRAPS);
143 void parse_classfile_bootstrap_methods_attribute(constantPoolHandle cp, instanceKlassHandle k, u4 attribute_length, TRAPS); 210 void parse_classfile_synthetic_attribute(constantPoolHandle cp, TRAPS);
211 void parse_classfile_signature_attribute(constantPoolHandle cp, TRAPS);
212 void parse_classfile_bootstrap_methods_attribute(constantPoolHandle cp, u4 attribute_length, TRAPS);
144 213
145 // Annotations handling 214 // Annotations handling
146 typeArrayHandle assemble_annotations(u1* runtime_visible_annotations, 215 typeArrayHandle assemble_annotations(u1* runtime_visible_annotations,
147 int runtime_visible_annotations_length, 216 int runtime_visible_annotations_length,
148 u1* runtime_invisible_annotations, 217 u1* runtime_invisible_annotations,
149 int runtime_invisible_annotations_length, TRAPS); 218 int runtime_invisible_annotations_length, TRAPS);
219 int skip_annotation(u1* buffer, int limit, int index);
220 int skip_annotation_value(u1* buffer, int limit, int index);
221 void parse_annotations(u1* buffer, int limit, constantPoolHandle cp,
222 /* Results (currently, only one result is supported): */
223 AnnotationCollector* result,
224 TRAPS);
150 225
151 // Final setup 226 // Final setup
152 unsigned int compute_oop_map_count(instanceKlassHandle super, 227 unsigned int compute_oop_map_count(instanceKlassHandle super,
153 unsigned int nonstatic_oop_count, 228 unsigned int nonstatic_oop_count,
154 int first_nonstatic_oop_offset); 229 int first_nonstatic_oop_offset);