Mercurial > hg > truffle
annotate src/share/vm/classfile/classFileParser.hpp @ 8463:b2161263e9f2
Cleanup unit tests : they should not print to stdout/stderr
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Mon, 25 Mar 2013 19:22:03 +0100 |
parents | 927a311d00f9 |
children | c8b31b461e1a |
rev | line source |
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0 | 1 /* |
8031 | 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_CLASSFILE_CLASSFILEPARSER_HPP |
26 #define SHARE_VM_CLASSFILE_CLASSFILEPARSER_HPP | |
27 | |
28 #include "classfile/classFileStream.hpp" | |
29 #include "memory/resourceArea.hpp" | |
30 #include "oops/oop.inline.hpp" | |
31 #include "oops/typeArrayOop.hpp" | |
32 #include "runtime/handles.inline.hpp" | |
33 #include "utilities/accessFlags.hpp" | |
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34 #include "classfile/symbolTable.hpp" |
1972 | 35 |
3938 | 36 class FieldAllocationCount; |
37 | |
38 | |
0 | 39 // Parser for for .class files |
40 // | |
41 // The bytes describing the class file structure is read from a Stream object | |
42 | |
43 class ClassFileParser VALUE_OBJ_CLASS_SPEC { | |
44 private: | |
45 bool _need_verify; | |
46 bool _relax_verify; | |
47 u2 _major_version; | |
48 u2 _minor_version; | |
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49 Symbol* _class_name; |
710 | 50 KlassHandle _host_klass; |
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51 GrowableArray<Handle>* _cp_patches; // overrides for CP entries |
0 | 52 |
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53 // precomputed flags |
0 | 54 bool _has_finalizer; |
55 bool _has_empty_finalizer; | |
56 bool _has_vanilla_constructor; | |
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57 int _max_bootstrap_specifier_index; // detects BSS values |
0 | 58 |
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59 // class attributes parsed before the instance klass is created: |
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60 bool _synthetic_flag; |
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61 Symbol* _sourcefile; |
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62 Symbol* _generic_signature; |
6226 | 63 char* _sde_buffer; |
64 int _sde_length; | |
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65 Array<u2>* _inner_classes; |
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66 AnnotationArray* _annotations; |
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67 AnnotationArray* _type_annotations; |
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68 |
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69 void set_class_synthetic_flag(bool x) { _synthetic_flag = x; } |
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70 void set_class_sourcefile(Symbol* x) { _sourcefile = x; } |
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71 void set_class_generic_signature(Symbol* x) { _generic_signature = x; } |
6226 | 72 void set_class_sde_buffer(char* x, int len) { _sde_buffer = x; _sde_length = len; } |
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73 void set_class_inner_classes(Array<u2>* x) { _inner_classes = x; } |
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74 void set_class_annotations(AnnotationArray* x) { _annotations = x; } |
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75 void set_class_type_annotations(AnnotationArray* x) { _type_annotations = x; } |
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76 void init_parsed_class_attributes() { |
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77 _synthetic_flag = false; |
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78 _sourcefile = NULL; |
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79 _generic_signature = NULL; |
6226 | 80 _sde_buffer = NULL; |
81 _sde_length = 0; | |
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82 _annotations = _type_annotations = NULL; |
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83 // initialize the other flags too: |
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84 _has_finalizer = _has_empty_finalizer = _has_vanilla_constructor = false; |
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85 _max_bootstrap_specifier_index = -1; |
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86 } |
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87 void apply_parsed_class_attributes(instanceKlassHandle k); // update k |
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88 |
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89 class AnnotationCollector { |
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90 public: |
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91 enum Location { _in_field, _in_method, _in_class }; |
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92 enum ID { |
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93 _unknown = 0, |
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94 _method_ForceInline, |
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95 _method_DontInline, |
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96 _method_LambdaForm_Compiled, |
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97 _method_LambdaForm_Hidden, |
7587 | 98 _sun_misc_Contended, |
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99 _annotation_LIMIT |
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100 }; |
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101 const Location _location; |
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102 int _annotations_present; |
7587 | 103 u2 _contended_group; |
104 | |
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105 AnnotationCollector(Location location) |
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106 : _location(location), _annotations_present(0) |
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107 { |
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108 assert((int)_annotation_LIMIT <= (int)sizeof(_annotations_present) * BitsPerByte, ""); |
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109 } |
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110 // If this annotation name has an ID, report it (or _none). |
7587 | 111 ID annotation_index(ClassLoaderData* loader_data, Symbol* name); |
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112 // Set the annotation name: |
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113 void set_annotation(ID id) { |
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114 assert((int)id >= 0 && (int)id < (int)_annotation_LIMIT, "oob"); |
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115 _annotations_present |= nth_bit((int)id); |
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116 } |
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117 // Report if the annotation is present. |
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118 bool has_any_annotations() { return _annotations_present != 0; } |
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119 bool has_annotation(ID id) { return (nth_bit((int)id) & _annotations_present) != 0; } |
7587 | 120 |
121 void set_contended_group(u2 group) { _contended_group = group; } | |
122 u2 contended_group() { return _contended_group; } | |
123 | |
124 void set_contended(bool contended) { set_annotation(_sun_misc_Contended); } | |
125 bool is_contended() { return has_annotation(_sun_misc_Contended); } | |
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126 }; |
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127 class FieldAnnotationCollector: public AnnotationCollector { |
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128 public: |
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129 FieldAnnotationCollector() : AnnotationCollector(_in_field) { } |
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130 void apply_to(FieldInfo* f); |
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131 }; |
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132 class MethodAnnotationCollector: public AnnotationCollector { |
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133 public: |
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134 MethodAnnotationCollector() : AnnotationCollector(_in_method) { } |
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135 void apply_to(methodHandle m); |
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136 }; |
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137 class ClassAnnotationCollector: public AnnotationCollector { |
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138 public: |
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139 ClassAnnotationCollector() : AnnotationCollector(_in_class) { } |
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140 void apply_to(instanceKlassHandle k); |
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141 }; |
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142 |
0 | 143 enum { fixed_buffer_size = 128 }; |
144 u_char linenumbertable_buffer[fixed_buffer_size]; | |
145 | |
146 ClassFileStream* _stream; // Actual input stream | |
147 | |
148 enum { LegalClass, LegalField, LegalMethod }; // used to verify unqualified names | |
149 | |
150 // Accessors | |
151 ClassFileStream* stream() { return _stream; } | |
152 void set_stream(ClassFileStream* st) { _stream = st; } | |
153 | |
154 // Constant pool parsing | |
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155 void parse_constant_pool_entries(ClassLoaderData* loader_data, |
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156 constantPoolHandle cp, int length, TRAPS); |
0 | 157 |
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158 constantPoolHandle parse_constant_pool(ClassLoaderData* loader_data, TRAPS); |
0 | 159 |
160 // Interface parsing | |
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161 Array<Klass*>* parse_interfaces(constantPoolHandle cp, |
0 | 162 int length, |
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163 ClassLoaderData* loader_data, |
0 | 164 Handle protection_domain, |
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165 Symbol* class_name, |
6934 | 166 bool* has_default_methods, |
0 | 167 TRAPS); |
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168 void record_defined_class_dependencies(instanceKlassHandle defined_klass, TRAPS); |
0 | 169 |
170 // Field parsing | |
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171 void parse_field_attributes(ClassLoaderData* loader_data, |
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172 constantPoolHandle cp, u2 attributes_count, |
0 | 173 bool is_static, u2 signature_index, |
174 u2* constantvalue_index_addr, | |
175 bool* is_synthetic_addr, | |
176 u2* generic_signature_index_addr, | |
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177 AnnotationArray** field_annotations, |
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178 AnnotationArray** field_type_annotations, |
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179 FieldAnnotationCollector* parsed_annotations, |
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180 TRAPS); |
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181 Array<u2>* parse_fields(ClassLoaderData* loader_data, |
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182 Symbol* class_name, |
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183 constantPoolHandle cp, bool is_interface, |
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184 FieldAllocationCount *fac, |
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185 Array<AnnotationArray*>** fields_annotations, |
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186 Array<AnnotationArray*>** fields_type_annotations, |
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187 u2* java_fields_count_ptr, TRAPS); |
0 | 188 |
7587 | 189 void print_field_layout(Symbol* name, |
190 Array<u2>* fields, | |
191 constantPoolHandle cp, | |
192 int instance_size, | |
193 int instance_fields_start, | |
194 int instance_fields_end, | |
195 int static_fields_end); | |
196 | |
0 | 197 // Method parsing |
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198 methodHandle parse_method(ClassLoaderData* loader_data, |
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199 constantPoolHandle cp, |
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200 bool is_interface, |
0 | 201 AccessFlags* promoted_flags, |
202 TRAPS); | |
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203 Array<Method*>* parse_methods(ClassLoaderData* loader_data, |
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204 constantPoolHandle cp, |
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205 bool is_interface, |
0 | 206 AccessFlags* promoted_flags, |
207 bool* has_final_method, | |
6934 | 208 bool* has_default_method, |
0 | 209 TRAPS); |
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210 Array<int>* sort_methods(ClassLoaderData* loader_data, |
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211 Array<Method*>* methods, |
8031 | 212 TRAPS); |
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213 u2* parse_exception_table(ClassLoaderData* loader_data, |
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214 u4 code_length, u4 exception_table_length, |
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215 constantPoolHandle cp, TRAPS); |
0 | 216 void parse_linenumber_table( |
217 u4 code_attribute_length, u4 code_length, | |
218 CompressedLineNumberWriteStream** write_stream, TRAPS); | |
219 u2* parse_localvariable_table(u4 code_length, u2 max_locals, u4 code_attribute_length, | |
220 constantPoolHandle cp, u2* localvariable_table_length, | |
221 bool isLVTT, TRAPS); | |
222 u2* parse_checked_exceptions(u2* checked_exceptions_length, u4 method_attribute_length, | |
223 constantPoolHandle cp, TRAPS); | |
224 void parse_type_array(u2 array_length, u4 code_length, u4* u1_index, u4* u2_index, | |
225 u1* u1_array, u2* u2_array, constantPoolHandle cp, TRAPS); | |
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226 Array<u1>* parse_stackmap_table(ClassLoaderData* loader_data, u4 code_attribute_length, TRAPS); |
0 | 227 |
228 // Classfile attribute parsing | |
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229 void parse_classfile_sourcefile_attribute(constantPoolHandle cp, TRAPS); |
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230 void parse_classfile_source_debug_extension_attribute(constantPoolHandle cp, |
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231 int length, TRAPS); |
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232 u2 parse_classfile_inner_classes_attribute(ClassLoaderData* loader_data, |
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233 u1* inner_classes_attribute_start, |
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234 bool parsed_enclosingmethod_attribute, |
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235 u2 enclosing_method_class_index, |
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236 u2 enclosing_method_method_index, |
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237 constantPoolHandle cp, |
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238 TRAPS); |
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239 void parse_classfile_attributes(ClassLoaderData* loader_data, |
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240 constantPoolHandle cp, |
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241 ClassAnnotationCollector* parsed_annotations, |
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242 TRAPS); |
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243 void parse_classfile_synthetic_attribute(constantPoolHandle cp, TRAPS); |
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244 void parse_classfile_signature_attribute(constantPoolHandle cp, TRAPS); |
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245 void parse_classfile_bootstrap_methods_attribute(ClassLoaderData* loader_data, constantPoolHandle cp, u4 attribute_length, TRAPS); |
0 | 246 |
247 // Annotations handling | |
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248 AnnotationArray* assemble_annotations(ClassLoaderData* loader_data, |
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249 u1* runtime_visible_annotations, |
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250 int runtime_visible_annotations_length, |
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251 u1* runtime_invisible_annotations, |
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252 int runtime_invisible_annotations_length, TRAPS); |
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253 int skip_annotation(u1* buffer, int limit, int index); |
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254 int skip_annotation_value(u1* buffer, int limit, int index); |
7587 | 255 void parse_annotations(ClassLoaderData* loader_data, |
256 u1* buffer, int limit, constantPoolHandle cp, | |
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257 /* Results (currently, only one result is supported): */ |
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258 AnnotationCollector* result, |
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259 TRAPS); |
0 | 260 |
261 // Final setup | |
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262 unsigned int compute_oop_map_count(instanceKlassHandle super, |
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263 unsigned int nonstatic_oop_count, |
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264 int first_nonstatic_oop_offset); |
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265 void fill_oop_maps(instanceKlassHandle k, |
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266 unsigned int nonstatic_oop_map_count, |
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267 int* nonstatic_oop_offsets, |
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268 unsigned int* nonstatic_oop_counts); |
0 | 269 void set_precomputed_flags(instanceKlassHandle k); |
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270 Array<Klass*>* compute_transitive_interfaces(ClassLoaderData* loader_data, |
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271 instanceKlassHandle super, |
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272 Array<Klass*>* local_ifs, TRAPS); |
0 | 273 |
274 // Format checker methods | |
275 void classfile_parse_error(const char* msg, TRAPS); | |
276 void classfile_parse_error(const char* msg, int index, TRAPS); | |
277 void classfile_parse_error(const char* msg, const char *name, TRAPS); | |
278 void classfile_parse_error(const char* msg, int index, const char *name, TRAPS); | |
279 inline void guarantee_property(bool b, const char* msg, TRAPS) { | |
280 if (!b) { classfile_parse_error(msg, CHECK); } | |
281 } | |
282 | |
283 inline void assert_property(bool b, const char* msg, TRAPS) { | |
284 #ifdef ASSERT | |
285 if (!b) { fatal(msg); } | |
286 #endif | |
287 } | |
288 | |
289 inline void check_property(bool property, const char* msg, int index, TRAPS) { | |
290 if (_need_verify) { | |
291 guarantee_property(property, msg, index, CHECK); | |
292 } else { | |
293 assert_property(property, msg, CHECK); | |
294 } | |
295 } | |
296 | |
297 inline void check_property(bool property, const char* msg, TRAPS) { | |
298 if (_need_verify) { | |
299 guarantee_property(property, msg, CHECK); | |
300 } else { | |
301 assert_property(property, msg, CHECK); | |
302 } | |
303 } | |
304 | |
305 inline void guarantee_property(bool b, const char* msg, int index, TRAPS) { | |
306 if (!b) { classfile_parse_error(msg, index, CHECK); } | |
307 } | |
308 inline void guarantee_property(bool b, const char* msg, const char *name, TRAPS) { | |
309 if (!b) { classfile_parse_error(msg, name, CHECK); } | |
310 } | |
311 inline void guarantee_property(bool b, const char* msg, int index, const char *name, TRAPS) { | |
312 if (!b) { classfile_parse_error(msg, index, name, CHECK); } | |
313 } | |
314 | |
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315 void throwIllegalSignature( |
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316 const char* type, Symbol* name, Symbol* sig, TRAPS); |
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317 |
0 | 318 bool is_supported_version(u2 major, u2 minor); |
319 bool has_illegal_visibility(jint flags); | |
320 | |
321 void verify_constantvalue(int constantvalue_index, int signature_index, constantPoolHandle cp, TRAPS); | |
322 void verify_legal_utf8(const unsigned char* buffer, int length, TRAPS); | |
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323 void verify_legal_class_name(Symbol* name, TRAPS); |
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324 void verify_legal_field_name(Symbol* name, TRAPS); |
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325 void verify_legal_method_name(Symbol* name, TRAPS); |
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326 void verify_legal_field_signature(Symbol* fieldname, Symbol* signature, TRAPS); |
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327 int verify_legal_method_signature(Symbol* methodname, Symbol* signature, TRAPS); |
0 | 328 void verify_legal_class_modifiers(jint flags, TRAPS); |
329 void verify_legal_field_modifiers(jint flags, bool is_interface, TRAPS); | |
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330 void verify_legal_method_modifiers(jint flags, bool is_interface, Symbol* name, TRAPS); |
0 | 331 bool verify_unqualified_name(char* name, unsigned int length, int type); |
332 char* skip_over_field_name(char* name, bool slash_ok, unsigned int length); | |
333 char* skip_over_field_signature(char* signature, bool void_ok, unsigned int length, TRAPS); | |
334 | |
710 | 335 bool is_anonymous() { |
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336 assert(EnableInvokeDynamic || _host_klass.is_null(), ""); |
710 | 337 return _host_klass.not_null(); |
338 } | |
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339 bool has_cp_patch_at(int index) { |
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340 assert(EnableInvokeDynamic, ""); |
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341 assert(index >= 0, "oob"); |
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342 return (_cp_patches != NULL |
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343 && index < _cp_patches->length() |
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344 && _cp_patches->adr_at(index)->not_null()); |
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345 } |
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346 Handle cp_patch_at(int index) { |
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347 assert(has_cp_patch_at(index), "oob"); |
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348 return _cp_patches->at(index); |
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349 } |
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350 Handle clear_cp_patch_at(int index) { |
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351 Handle patch = cp_patch_at(index); |
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352 _cp_patches->at_put(index, Handle()); |
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353 assert(!has_cp_patch_at(index), ""); |
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354 return patch; |
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355 } |
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356 void patch_constant_pool(constantPoolHandle cp, int index, Handle patch, TRAPS); |
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357 |
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358 // Wrapper for constantTag.is_klass_[or_]reference. |
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359 // In older versions of the VM, Klass*s cannot sneak into early phases of |
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360 // constant pool construction, but in later versions they can. |
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361 // %%% Let's phase out the old is_klass_reference. |
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362 bool is_klass_reference(constantPoolHandle cp, int index) { |
6852 | 363 return (EnableInvokeDynamic |
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364 ? cp->tag_at(index).is_klass_or_reference() |
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365 : cp->tag_at(index).is_klass_reference()); |
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366 } |
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367 |
8031 | 368 void copy_localvariable_table(ConstMethod* cm, int lvt_cnt, |
369 u2* localvariable_table_length, | |
370 u2** localvariable_table_start, | |
371 int lvtt_cnt, | |
372 u2* localvariable_type_table_length, | |
373 u2** localvariable_type_table_start, | |
374 TRAPS); | |
375 | |
376 void copy_method_annotations(ClassLoaderData* loader_data, | |
377 ConstMethod* cm, | |
378 u1* runtime_visible_annotations, | |
379 int runtime_visible_annotations_length, | |
380 u1* runtime_invisible_annotations, | |
381 int runtime_invisible_annotations_length, | |
382 u1* runtime_visible_parameter_annotations, | |
383 int runtime_visible_parameter_annotations_length, | |
384 u1* runtime_invisible_parameter_annotations, | |
385 int runtime_invisible_parameter_annotations_length, | |
386 u1* runtime_visible_type_annotations, | |
387 int runtime_visible_type_annotations_length, | |
388 u1* runtime_invisible_type_annotations, | |
389 int runtime_invisible_type_annotations_length, | |
390 u1* annotation_default, | |
391 int annotation_default_length, | |
392 TRAPS); | |
393 | |
0 | 394 public: |
395 // Constructor | |
396 ClassFileParser(ClassFileStream* st) { set_stream(st); } | |
397 | |
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398 // Parse .class file and return new Klass*. The Klass* is not hooked up |
0 | 399 // to the system dictionary or any other structures, so a .class file can |
400 // be loaded several times if desired. | |
401 // The system dictionary hookup is done by the caller. | |
402 // | |
403 // "parsed_name" is updated by this method, and is the name found | |
404 // while parsing the stream. | |
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405 instanceKlassHandle parseClassFile(Symbol* name, |
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406 ClassLoaderData* loader_data, |
0 | 407 Handle protection_domain, |
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408 TempNewSymbol& parsed_name, |
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409 bool verify, |
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410 TRAPS) { |
710 | 411 KlassHandle no_host_klass; |
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412 return parseClassFile(name, loader_data, protection_domain, no_host_klass, NULL, parsed_name, verify, THREAD); |
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413 } |
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414 instanceKlassHandle parseClassFile(Symbol* name, |
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415 ClassLoaderData* loader_data, |
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416 Handle protection_domain, |
710 | 417 KlassHandle host_klass, |
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418 GrowableArray<Handle>* cp_patches, |
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419 TempNewSymbol& parsed_name, |
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420 bool verify, |
0 | 421 TRAPS); |
422 | |
423 // Verifier checks | |
424 static void check_super_class_access(instanceKlassHandle this_klass, TRAPS); | |
425 static void check_super_interface_access(instanceKlassHandle this_klass, TRAPS); | |
426 static void check_final_method_override(instanceKlassHandle this_klass, TRAPS); | |
427 static void check_illegal_static_method(instanceKlassHandle this_klass, TRAPS); | |
428 }; | |
1972 | 429 |
430 #endif // SHARE_VM_CLASSFILE_CLASSFILEPARSER_HPP |