Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/reflection.hpp @ 878:abe076e3636f
6864003: Modify JVM_FindClassFromBootLoader to return null if class not found
Summary: JVM_FindClassFromBootLoader returns null if class not found
Reviewed-by: acorn, alanb, dholmes
author | mchung |
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date | Mon, 27 Jul 2009 09:06:22 -0700 |
parents | c89f86385056 |
children | c18cbe5936b8 |
rev | line source |
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0 | 1 /* |
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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). |
c89f86385056
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99 // Caller is responsible for figuring out in advance which case must be true. |
c89f86385056
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100 static void check_for_inner_class(instanceKlassHandle outer, instanceKlassHandle inner, |
c89f86385056
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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 }; |