Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/reflection.hpp @ 2177:3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
Summary: move symbols from permgen into C heap and reference count them
Reviewed-by: never, acorn, jmasa, stefank
| author | coleenp |
|---|---|
| date | Thu, 27 Jan 2011 16:11:27 -0800 |
| parents | f95d63e2154a |
| children | 1d1603768966 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1997, 2010, 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_RUNTIME_REFLECTION_HPP |
| 26 #define SHARE_VM_RUNTIME_REFLECTION_HPP | |
| 27 | |
| 28 #include "oops/oop.hpp" | |
| 29 #include "runtime/fieldDescriptor.hpp" | |
| 30 #include "runtime/reflectionCompat.hpp" | |
| 31 #include "utilities/accessFlags.hpp" | |
| 32 #include "utilities/growableArray.hpp" | |
| 33 | |
| 0 | 34 // Class Reflection contains utility methods needed for implementing the |
| 35 // reflection api. | |
| 36 // | |
| 37 // Used by functions in the JVM interface. | |
| 38 // | |
| 39 // NOTE that in JDK 1.4 most of reflection is now implemented in Java | |
| 40 // using dynamic bytecode generation. The Array class has not yet been | |
| 41 // rewritten using bytecodes; if it were, most of the rest of this | |
| 42 // class could go away, as well as a few more entry points in jvm.cpp. | |
| 43 | |
| 44 class FieldStream; | |
| 45 | |
| 46 class Reflection: public AllStatic { | |
| 47 private: | |
| 48 // Access checking | |
| 49 static bool reflect_check_access(klassOop field_class, AccessFlags acc, klassOop target_class, bool is_method_invoke, TRAPS); | |
| 50 | |
| 51 // Conversion | |
| 52 static klassOop basic_type_mirror_to_arrayklass(oop basic_type_mirror, TRAPS); | |
| 53 static oop basic_type_arrayklass_to_mirror(klassOop basic_type_arrayklass, TRAPS); | |
| 54 | |
| 55 static objArrayHandle get_parameter_types(methodHandle method, int parameter_count, oop* return_type, TRAPS); | |
| 56 static objArrayHandle get_exception_types(methodHandle method, TRAPS); | |
| 57 // Creating new java.lang.reflect.xxx wrappers | |
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58 static Handle new_type(Symbol* signature, KlassHandle k, TRAPS); |
| 0 | 59 |
| 60 public: | |
| 61 // Constants defined by java reflection api classes | |
| 62 enum SomeConstants { | |
| 63 PUBLIC = 0, | |
| 64 DECLARED = 1, | |
| 65 MEMBER_PUBLIC = 0, | |
| 66 MEMBER_DECLARED = 1, | |
| 67 MAX_DIM = 255 | |
| 68 }; | |
| 69 | |
| 70 // Boxing. Returns boxed value of appropriate type. Throws IllegalArgumentException. | |
| 71 static oop box(jvalue* v, BasicType type, TRAPS); | |
| 72 // Unboxing. Returns type code and sets value. | |
| 73 static BasicType unbox_for_primitive(oop boxed_value, jvalue* value, TRAPS); | |
| 74 static BasicType unbox_for_regular_object(oop boxed_value, jvalue* value); | |
| 75 | |
| 76 // Widening of basic types. Throws IllegalArgumentException. | |
| 77 static void widen(jvalue* value, BasicType current_type, BasicType wide_type, TRAPS); | |
| 78 | |
| 79 // Reflective array access. Returns type code. Throws ArrayIndexOutOfBoundsException. | |
| 80 static BasicType array_get(jvalue* value, arrayOop a, int index, TRAPS); | |
| 81 static void array_set(jvalue* value, arrayOop a, int index, BasicType value_type, TRAPS); | |
| 82 // Returns mirror on array element type (NULL for basic type arrays and non-arrays). | |
| 83 static oop array_component_type(oop mirror, TRAPS); | |
| 84 | |
| 85 // Object creation | |
| 86 static arrayOop reflect_new_array(oop element_mirror, jint length, TRAPS); | |
| 87 static arrayOop reflect_new_multi_array(oop element_mirror, typeArrayOop dimensions, TRAPS); | |
| 88 | |
| 89 // Verification | |
| 90 static bool verify_class_access(klassOop current_class, klassOop new_class, bool classloader_only); | |
| 91 | |
| 92 static bool verify_field_access(klassOop current_class, | |
| 93 klassOop resolved_class, | |
| 94 klassOop field_class, | |
| 95 AccessFlags access, | |
| 96 bool classloader_only, | |
| 97 bool protected_restriction = false); | |
| 98 static bool is_same_class_package(klassOop class1, klassOop class2); | |
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99 static bool is_same_package_member(klassOop class1, klassOop class2, TRAPS); |
| 0 | 100 |
| 101 static bool can_relax_access_check_for( | |
| 102 klassOop accessor, klassOop accesee, bool classloader_only); | |
| 103 | |
| 104 // inner class reflection | |
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105 // raise an ICCE unless the required relationship can be proven to hold |
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106 // If inner_is_member, require the inner to be a member of the outer. |
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107 // If !inner_is_member, require the inner to be anonymous (a non-member). |
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108 // Caller is responsible for figuring out in advance which case must be true. |
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109 static void check_for_inner_class(instanceKlassHandle outer, instanceKlassHandle inner, |
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110 bool inner_is_member, TRAPS); |
| 0 | 111 |
| 112 // | |
| 113 // Support for reflection based on dynamic bytecode generation (JDK 1.4) | |
| 114 // | |
| 115 | |
| 116 // Create a java.lang.reflect.Method object based on a method | |
| 117 static oop new_method(methodHandle method, bool intern_name, bool for_constant_pool_access, TRAPS); | |
| 118 // Create a java.lang.reflect.Constructor object based on a method | |
| 119 static oop new_constructor(methodHandle method, TRAPS); | |
| 120 // Create a java.lang.reflect.Field object based on a field descriptor | |
| 121 static oop new_field(fieldDescriptor* fd, bool intern_name, TRAPS); | |
| 122 | |
| 123 //--------------------------------------------------------------------------- | |
| 124 // | |
| 125 // Support for old native code-based reflection (pre-JDK 1.4) | |
| 126 // | |
| 127 // NOTE: the method and constructor invocation code is still used | |
| 128 // for startup time reasons; see reflectionCompat.hpp. | |
| 129 // | |
| 130 //--------------------------------------------------------------------------- | |
| 131 | |
| 132 #ifdef SUPPORT_OLD_REFLECTION | |
| 133 private: | |
| 134 // method resolution for invoke | |
| 135 static methodHandle resolve_interface_call(instanceKlassHandle klass, methodHandle method, KlassHandle recv_klass, Handle receiver, TRAPS); | |
| 136 // Method call (shared by invoke_method and invoke_constructor) | |
| 137 static oop invoke(instanceKlassHandle klass, methodHandle method, Handle receiver, bool override, objArrayHandle ptypes, BasicType rtype, objArrayHandle args, bool is_method_invoke, TRAPS); | |
| 138 | |
| 139 // Narrowing of basic types. Used to create correct jvalues for | |
| 140 // boolean, byte, char and short return return values from interpreter | |
| 141 // which are returned as ints. Throws IllegalArgumentException. | |
| 142 static void narrow(jvalue* value, BasicType narrow_type, TRAPS); | |
| 143 | |
| 144 // Conversion | |
| 145 static BasicType basic_type_mirror_to_basic_type(oop basic_type_mirror, TRAPS); | |
| 146 | |
| 147 static bool match_parameter_types(methodHandle method, objArrayHandle types, int parameter_count, TRAPS); | |
| 148 // Creating new java.lang.reflect.xxx wrappers | |
| 149 static oop new_field(FieldStream* st, TRAPS); | |
| 150 | |
| 151 public: | |
| 152 // Field lookup and verification. | |
| 153 static bool resolve_field(Handle field_mirror, Handle& receiver, fieldDescriptor* fd, bool check_final, TRAPS); | |
| 154 | |
| 155 // Reflective field access. Returns type code. Throws IllegalArgumentException. | |
| 156 static BasicType field_get(jvalue* value, fieldDescriptor* fd, Handle receiver); | |
| 157 static void field_set(jvalue* value, fieldDescriptor* fd, Handle receiver, BasicType value_type, TRAPS); | |
| 158 | |
| 159 // Reflective lookup of fields. Returns java.lang.reflect.Field instances. | |
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160 static oop reflect_field(oop mirror, Symbol* field_name, jint which, TRAPS); |
| 0 | 161 static objArrayOop reflect_fields(oop mirror, jint which, TRAPS); |
| 162 | |
| 163 // Reflective lookup of methods. Returns java.lang.reflect.Method instances. | |
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164 static oop reflect_method(oop mirror, Symbol* method_name, objArrayHandle types, jint which, TRAPS); |
| 0 | 165 static objArrayOop reflect_methods(oop mirror, jint which, TRAPS); |
| 166 | |
| 167 // Reflective lookup of constructors. Returns java.lang.reflect.Constructor instances. | |
| 168 static oop reflect_constructor(oop mirror, objArrayHandle types, jint which, TRAPS); | |
| 169 static objArrayOop reflect_constructors(oop mirror, jint which, TRAPS); | |
| 170 | |
| 171 // Method invokation through java.lang.reflect.Method | |
| 172 static oop invoke_method(oop method_mirror, Handle receiver, objArrayHandle args, TRAPS); | |
| 173 // Method invokation through java.lang.reflect.Constructor | |
| 174 static oop invoke_constructor(oop method_mirror, objArrayHandle args, TRAPS); | |
| 175 #endif /* SUPPORT_OLD_REFLECTION */ | |
| 176 | |
| 177 }; | |
| 1972 | 178 |
| 179 #endif // SHARE_VM_RUNTIME_REFLECTION_HPP |