Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/reflection.hpp @ 665:c89f86385056
6814659: separable cleanups and subroutines for 6655638
Summary: preparatory but separable changes for method handles
Reviewed-by: kvn, never
| author | jrose |
|---|---|
| date | Fri, 20 Mar 2009 23:19:36 -0700 |
| parents | a61af66fc99e |
| children | c18cbe5936b8 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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665
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6814659: separable cleanups and subroutines for 6655638
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2 * Copyright 1997-2009 Sun Microsystems, Inc. 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 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 // Class Reflection contains utility methods needed for implementing the | |
| 26 // reflection api. | |
| 27 // | |
| 28 // Used by functions in the JVM interface. | |
| 29 // | |
| 30 // NOTE that in JDK 1.4 most of reflection is now implemented in Java | |
| 31 // using dynamic bytecode generation. The Array class has not yet been | |
| 32 // rewritten using bytecodes; if it were, most of the rest of this | |
| 33 // class could go away, as well as a few more entry points in jvm.cpp. | |
| 34 | |
| 35 class FieldStream; | |
| 36 | |
| 37 class Reflection: public AllStatic { | |
| 38 private: | |
| 39 // Access checking | |
| 40 static bool reflect_check_access(klassOop field_class, AccessFlags acc, klassOop target_class, bool is_method_invoke, TRAPS); | |
| 41 | |
| 42 // Conversion | |
| 43 static klassOop basic_type_mirror_to_arrayklass(oop basic_type_mirror, TRAPS); | |
| 44 static oop basic_type_arrayklass_to_mirror(klassOop basic_type_arrayklass, TRAPS); | |
| 45 | |
| 46 static objArrayHandle get_parameter_types(methodHandle method, int parameter_count, oop* return_type, TRAPS); | |
| 47 static objArrayHandle get_exception_types(methodHandle method, TRAPS); | |
| 48 // Creating new java.lang.reflect.xxx wrappers | |
| 49 static Handle new_type(symbolHandle signature, KlassHandle k, TRAPS); | |
| 50 | |
| 51 public: | |
| 52 // Constants defined by java reflection api classes | |
| 53 enum SomeConstants { | |
| 54 PUBLIC = 0, | |
| 55 DECLARED = 1, | |
| 56 MEMBER_PUBLIC = 0, | |
| 57 MEMBER_DECLARED = 1, | |
| 58 MAX_DIM = 255 | |
| 59 }; | |
| 60 | |
| 61 // Boxing. Returns boxed value of appropriate type. Throws IllegalArgumentException. | |
| 62 static oop box(jvalue* v, BasicType type, TRAPS); | |
| 63 // Unboxing. Returns type code and sets value. | |
| 64 static BasicType unbox_for_primitive(oop boxed_value, jvalue* value, TRAPS); | |
| 65 static BasicType unbox_for_regular_object(oop boxed_value, jvalue* value); | |
| 66 | |
| 67 // Widening of basic types. Throws IllegalArgumentException. | |
| 68 static void widen(jvalue* value, BasicType current_type, BasicType wide_type, TRAPS); | |
| 69 | |
| 70 // Reflective array access. Returns type code. Throws ArrayIndexOutOfBoundsException. | |
| 71 static BasicType array_get(jvalue* value, arrayOop a, int index, TRAPS); | |
| 72 static void array_set(jvalue* value, arrayOop a, int index, BasicType value_type, TRAPS); | |
| 73 // Returns mirror on array element type (NULL for basic type arrays and non-arrays). | |
| 74 static oop array_component_type(oop mirror, TRAPS); | |
| 75 | |
| 76 // Object creation | |
| 77 static arrayOop reflect_new_array(oop element_mirror, jint length, TRAPS); | |
| 78 static arrayOop reflect_new_multi_array(oop element_mirror, typeArrayOop dimensions, TRAPS); | |
| 79 | |
| 80 // Verification | |
| 81 static bool verify_class_access(klassOop current_class, klassOop new_class, bool classloader_only); | |
| 82 | |
| 83 static bool verify_field_access(klassOop current_class, | |
| 84 klassOop resolved_class, | |
| 85 klassOop field_class, | |
| 86 AccessFlags access, | |
| 87 bool classloader_only, | |
| 88 bool protected_restriction = false); | |
| 89 static bool is_same_class_package(klassOop class1, klassOop class2); | |
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90 static bool is_same_package_member(klassOop class1, klassOop class2, TRAPS); |
| 0 | 91 |
| 92 static bool can_relax_access_check_for( | |
| 93 klassOop accessor, klassOop accesee, bool classloader_only); | |
| 94 | |
| 95 // inner class reflection | |
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96 // raise an ICCE unless the required relationship can be proven to hold |
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97 // If inner_is_member, require the inner to be a member of the outer. |
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98 // If !inner_is_member, require the inner to be anonymous (a non-member). |
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99 // Caller is responsible for figuring out in advance which case must be true. |
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6814659: separable cleanups and subroutines for 6655638
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100 static void check_for_inner_class(instanceKlassHandle outer, instanceKlassHandle inner, |
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c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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changeset
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101 bool inner_is_member, TRAPS); |
| 0 | 102 |
| 103 // | |
| 104 // Support for reflection based on dynamic bytecode generation (JDK 1.4) | |
| 105 // | |
| 106 | |
| 107 // Create a java.lang.reflect.Method object based on a method | |
| 108 static oop new_method(methodHandle method, bool intern_name, bool for_constant_pool_access, TRAPS); | |
| 109 // Create a java.lang.reflect.Constructor object based on a method | |
| 110 static oop new_constructor(methodHandle method, TRAPS); | |
| 111 // Create a java.lang.reflect.Field object based on a field descriptor | |
| 112 static oop new_field(fieldDescriptor* fd, bool intern_name, TRAPS); | |
| 113 | |
| 114 //--------------------------------------------------------------------------- | |
| 115 // | |
| 116 // Support for old native code-based reflection (pre-JDK 1.4) | |
| 117 // | |
| 118 // NOTE: the method and constructor invocation code is still used | |
| 119 // for startup time reasons; see reflectionCompat.hpp. | |
| 120 // | |
| 121 //--------------------------------------------------------------------------- | |
| 122 | |
| 123 #ifdef SUPPORT_OLD_REFLECTION | |
| 124 private: | |
| 125 // method resolution for invoke | |
| 126 static methodHandle resolve_interface_call(instanceKlassHandle klass, methodHandle method, KlassHandle recv_klass, Handle receiver, TRAPS); | |
| 127 // Method call (shared by invoke_method and invoke_constructor) | |
| 128 static oop invoke(instanceKlassHandle klass, methodHandle method, Handle receiver, bool override, objArrayHandle ptypes, BasicType rtype, objArrayHandle args, bool is_method_invoke, TRAPS); | |
| 129 | |
| 130 // Narrowing of basic types. Used to create correct jvalues for | |
| 131 // boolean, byte, char and short return return values from interpreter | |
| 132 // which are returned as ints. Throws IllegalArgumentException. | |
| 133 static void narrow(jvalue* value, BasicType narrow_type, TRAPS); | |
| 134 | |
| 135 // Conversion | |
| 136 static BasicType basic_type_mirror_to_basic_type(oop basic_type_mirror, TRAPS); | |
| 137 | |
| 138 static bool match_parameter_types(methodHandle method, objArrayHandle types, int parameter_count, TRAPS); | |
| 139 // Creating new java.lang.reflect.xxx wrappers | |
| 140 static oop new_field(FieldStream* st, TRAPS); | |
| 141 | |
| 142 public: | |
| 143 // Field lookup and verification. | |
| 144 static bool resolve_field(Handle field_mirror, Handle& receiver, fieldDescriptor* fd, bool check_final, TRAPS); | |
| 145 | |
| 146 // Reflective field access. Returns type code. Throws IllegalArgumentException. | |
| 147 static BasicType field_get(jvalue* value, fieldDescriptor* fd, Handle receiver); | |
| 148 static void field_set(jvalue* value, fieldDescriptor* fd, Handle receiver, BasicType value_type, TRAPS); | |
| 149 | |
| 150 // Reflective lookup of fields. Returns java.lang.reflect.Field instances. | |
| 151 static oop reflect_field(oop mirror, symbolOop field_name, jint which, TRAPS); | |
| 152 static objArrayOop reflect_fields(oop mirror, jint which, TRAPS); | |
| 153 | |
| 154 // Reflective lookup of methods. Returns java.lang.reflect.Method instances. | |
| 155 static oop reflect_method(oop mirror, symbolHandle method_name, objArrayHandle types, jint which, TRAPS); | |
| 156 static objArrayOop reflect_methods(oop mirror, jint which, TRAPS); | |
| 157 | |
| 158 // Reflective lookup of constructors. Returns java.lang.reflect.Constructor instances. | |
| 159 static oop reflect_constructor(oop mirror, objArrayHandle types, jint which, TRAPS); | |
| 160 static objArrayOop reflect_constructors(oop mirror, jint which, TRAPS); | |
| 161 | |
| 162 // Method invokation through java.lang.reflect.Method | |
| 163 static oop invoke_method(oop method_mirror, Handle receiver, objArrayHandle args, TRAPS); | |
| 164 // Method invokation through java.lang.reflect.Constructor | |
| 165 static oop invoke_constructor(oop method_mirror, objArrayHandle args, TRAPS); | |
| 166 #endif /* SUPPORT_OLD_REFLECTION */ | |
| 167 | |
| 168 }; |