56 inline bool java_lang_invoke_MemberName::is_instance(oop obj) { 57 return obj != NULL && is_subclass(obj->klass()); 58 } 59 60 inline bool java_lang_invoke_MethodType::is_instance(oop obj) { 61 return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass(); 62 } 63 64 inline bool java_lang_invoke_MethodHandle::is_instance(oop obj) { 65 return obj != NULL && is_subclass(obj->klass()); 66 } 67 68 inline bool java_lang_Class::is_instance(oop obj) { 69 return obj != NULL && obj->klass() == SystemDictionary::Class_klass(); 70 } 71 72 inline bool java_lang_invoke_DirectMethodHandle::is_instance(oop obj) { 73 return obj != NULL && is_subclass(obj->klass()); 74 } 75 76 #endif // SHARE_VM_CLASSFILE_JAVACLASSES_INLINE_HPP | 56 inline bool java_lang_invoke_MemberName::is_instance(oop obj) { 57 return obj != NULL && is_subclass(obj->klass()); 58 } 59 60 inline bool java_lang_invoke_MethodType::is_instance(oop obj) { 61 return obj != NULL && obj->klass() == SystemDictionary::MethodType_klass(); 62 } 63 64 inline bool java_lang_invoke_MethodHandle::is_instance(oop obj) { 65 return obj != NULL && is_subclass(obj->klass()); 66 } 67 68 inline bool java_lang_Class::is_instance(oop obj) { 69 return obj != NULL && obj->klass() == SystemDictionary::Class_klass(); 70 } 71 72 inline bool java_lang_invoke_DirectMethodHandle::is_instance(oop obj) { 73 return obj != NULL && is_subclass(obj->klass()); 74 } 75 76 inline int Backtrace::merge_bci_and_version(int bci, int version) { 77 // only store u2 for version, checking for overflow. 78 if (version > USHRT_MAX || version < 0) version = USHRT_MAX; 79 assert((jushort)bci == bci, "bci should be short"); 80 return build_int_from_shorts(version, bci); 81 } 82 83 inline int Backtrace::merge_mid_and_cpref(int mid, int cpref) { 84 // only store u2 for mid and cpref, checking for overflow. 85 assert((jushort)mid == mid, "mid should be short"); 86 assert((jushort)cpref == cpref, "cpref should be short"); 87 return build_int_from_shorts(cpref, mid); 88 } 89 90 inline int Backtrace::bci_at(unsigned int merged) { 91 return extract_high_short_from_int(merged); 92 } 93 94 inline int Backtrace::version_at(unsigned int merged) { 95 return extract_low_short_from_int(merged); 96 } 97 98 inline int Backtrace::mid_at(unsigned int merged) { 99 return extract_high_short_from_int(merged); 100 } 101 102 inline int Backtrace::cpref_at(unsigned int merged) { 103 return extract_low_short_from_int(merged); 104 } 105 106 inline int Backtrace::get_line_number(const methodHandle& method, int bci) { 107 int line_number = 0; 108 if (method->is_native()) { 109 // Negative value different from -1 below, enabling Java code in 110 // class java.lang.StackTraceElement to distinguish "native" from 111 // "no LineNumberTable". JDK tests for -2. 112 line_number = -2; 113 } else { 114 // Returns -1 if no LineNumberTable, and otherwise actual line number 115 line_number = method->line_number_from_bci(bci); 116 if (line_number == -1 && ShowHiddenFrames) { 117 line_number = bci + 1000000; 118 } 119 } 120 return line_number; 121 } 122 123 /* 124 * Returns the source file name of a given InstanceKlass and version 125 */ 126 inline Symbol* Backtrace::get_source_file_name(InstanceKlass* holder, int version) { 127 // Find the specific ik version that contains this source_file_name_index 128 // via the previous versions list, but use the current version's 129 // constant pool to look it up. The previous version's index has been 130 // merged for the current constant pool. 131 InstanceKlass* ik = holder->get_klass_version(version); 132 // This version has been cleaned up. 133 if (ik == NULL) return NULL; 134 int source_file_name_index = ik->source_file_name_index(); 135 return (source_file_name_index == 0) ? 136 (Symbol*)NULL : holder->constants()->symbol_at(source_file_name_index); 137 } 138 139 #endif // SHARE_VM_CLASSFILE_JAVACLASSES_INLINE_HPP |