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annotate src/share/vm/runtime/reflection.hpp @ 4939:45a1bf98f1bb
7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
Reviewed-by: kvn, never
author | twisti |
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date | Mon, 13 Feb 2012 02:29:22 -0800 |
parents | 19241ae0d839 |
children | da91efe96a93 |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, 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 "utilities/accessFlags.hpp" | |
31 #include "utilities/growableArray.hpp" | |
32 | |
0 | 33 // Class Reflection contains utility methods needed for implementing the |
34 // reflection api. | |
35 // | |
36 // Used by functions in the JVM interface. | |
37 // | |
38 // NOTE that in JDK 1.4 most of reflection is now implemented in Java | |
39 // using dynamic bytecode generation. The Array class has not yet been | |
40 // rewritten using bytecodes; if it were, most of the rest of this | |
41 // class could go away, as well as a few more entry points in jvm.cpp. | |
42 | |
43 class FieldStream; | |
44 | |
45 class Reflection: public AllStatic { | |
46 private: | |
47 // Access checking | |
48 static bool reflect_check_access(klassOop field_class, AccessFlags acc, klassOop target_class, bool is_method_invoke, TRAPS); | |
49 | |
50 // Conversion | |
51 static klassOop basic_type_mirror_to_arrayklass(oop basic_type_mirror, TRAPS); | |
52 static oop basic_type_arrayklass_to_mirror(klassOop basic_type_arrayklass, TRAPS); | |
53 | |
54 static objArrayHandle get_parameter_types(methodHandle method, int parameter_count, oop* return_type, TRAPS); | |
55 static objArrayHandle get_exception_types(methodHandle method, TRAPS); | |
56 // Creating new java.lang.reflect.xxx wrappers | |
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57 static Handle new_type(Symbol* signature, KlassHandle k, TRAPS); |
0 | 58 |
59 public: | |
60 // Constants defined by java reflection api classes | |
61 enum SomeConstants { | |
62 PUBLIC = 0, | |
63 DECLARED = 1, | |
64 MEMBER_PUBLIC = 0, | |
65 MEMBER_DECLARED = 1, | |
66 MAX_DIM = 255 | |
67 }; | |
68 | |
69 // Boxing. Returns boxed value of appropriate type. Throws IllegalArgumentException. | |
70 static oop box(jvalue* v, BasicType type, TRAPS); | |
71 // Unboxing. Returns type code and sets value. | |
72 static BasicType unbox_for_primitive(oop boxed_value, jvalue* value, TRAPS); | |
73 static BasicType unbox_for_regular_object(oop boxed_value, jvalue* value); | |
74 | |
75 // Widening of basic types. Throws IllegalArgumentException. | |
76 static void widen(jvalue* value, BasicType current_type, BasicType wide_type, TRAPS); | |
77 | |
78 // Reflective array access. Returns type code. Throws ArrayIndexOutOfBoundsException. | |
79 static BasicType array_get(jvalue* value, arrayOop a, int index, TRAPS); | |
80 static void array_set(jvalue* value, arrayOop a, int index, BasicType value_type, TRAPS); | |
81 // Returns mirror on array element type (NULL for basic type arrays and non-arrays). | |
82 static oop array_component_type(oop mirror, TRAPS); | |
83 | |
84 // Object creation | |
85 static arrayOop reflect_new_array(oop element_mirror, jint length, TRAPS); | |
86 static arrayOop reflect_new_multi_array(oop element_mirror, typeArrayOop dimensions, TRAPS); | |
87 | |
88 // Verification | |
89 static bool verify_class_access(klassOop current_class, klassOop new_class, bool classloader_only); | |
90 | |
91 static bool verify_field_access(klassOop current_class, | |
92 klassOop resolved_class, | |
93 klassOop field_class, | |
94 AccessFlags access, | |
95 bool classloader_only, | |
96 bool protected_restriction = false); | |
97 static bool is_same_class_package(klassOop class1, klassOop class2); | |
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98 static bool is_same_package_member(klassOop class1, klassOop class2, TRAPS); |
0 | 99 |
100 static bool can_relax_access_check_for( | |
101 klassOop accessor, klassOop accesee, bool classloader_only); | |
102 | |
103 // inner class reflection | |
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104 // raise an ICCE unless the required relationship can be proven to hold |
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105 // If inner_is_member, require the inner to be a member of the outer. |
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106 // If !inner_is_member, require the inner to be anonymous (a non-member). |
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107 // Caller is responsible for figuring out in advance which case must be true. |
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108 static void check_for_inner_class(instanceKlassHandle outer, instanceKlassHandle inner, |
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109 bool inner_is_member, TRAPS); |
0 | 110 |
111 // | |
112 // Support for reflection based on dynamic bytecode generation (JDK 1.4) | |
113 // | |
114 | |
115 // Create a java.lang.reflect.Method object based on a method | |
116 static oop new_method(methodHandle method, bool intern_name, bool for_constant_pool_access, TRAPS); | |
117 // Create a java.lang.reflect.Constructor object based on a method | |
118 static oop new_constructor(methodHandle method, TRAPS); | |
119 // Create a java.lang.reflect.Field object based on a field descriptor | |
120 static oop new_field(fieldDescriptor* fd, bool intern_name, TRAPS); | |
121 | |
122 private: | |
123 // method resolution for invoke | |
124 static methodHandle resolve_interface_call(instanceKlassHandle klass, methodHandle method, KlassHandle recv_klass, Handle receiver, TRAPS); | |
125 // Method call (shared by invoke_method and invoke_constructor) | |
126 static oop invoke(instanceKlassHandle klass, methodHandle method, Handle receiver, bool override, objArrayHandle ptypes, BasicType rtype, objArrayHandle args, bool is_method_invoke, TRAPS); | |
127 | |
128 // Narrowing of basic types. Used to create correct jvalues for | |
129 // boolean, byte, char and short return return values from interpreter | |
130 // which are returned as ints. Throws IllegalArgumentException. | |
131 static void narrow(jvalue* value, BasicType narrow_type, TRAPS); | |
132 | |
133 // Conversion | |
134 static BasicType basic_type_mirror_to_basic_type(oop basic_type_mirror, TRAPS); | |
135 | |
136 public: | |
137 // Method invokation through java.lang.reflect.Method | |
138 static oop invoke_method(oop method_mirror, Handle receiver, objArrayHandle args, TRAPS); | |
139 // Method invokation through java.lang.reflect.Constructor | |
140 static oop invoke_constructor(oop method_mirror, objArrayHandle args, TRAPS); | |
141 | |
142 }; | |
1972 | 143 |
144 #endif // SHARE_VM_RUNTIME_REFLECTION_HPP |