Mon, 20 Jun 2016 22:46:28 -0700
8155968: Update command line options
Reviewed-by: gthornbr, hseigel, mschoene
Contributed-by: gerard.ziemski@oracle.com
1 /*
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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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
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25 #ifndef SHARE_VM_RUNTIME_REFLECTION_HPP
26 #define SHARE_VM_RUNTIME_REFLECTION_HPP
28 #include "oops/oop.hpp"
29 #include "runtime/fieldDescriptor.hpp"
30 #include "utilities/accessFlags.hpp"
31 #include "utilities/growableArray.hpp"
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.
43 class FieldStream;
45 class Reflection: public AllStatic {
46 private:
47 // Access checking
48 static bool reflect_check_access(Klass* field_class, AccessFlags acc, Klass* target_class, bool is_method_invoke, TRAPS);
50 // Conversion
51 static Klass* basic_type_mirror_to_arrayklass(oop basic_type_mirror, TRAPS);
52 static oop basic_type_arrayklass_to_mirror(Klass* basic_type_arrayklass, TRAPS);
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
57 static Handle new_type(Symbol* signature, KlassHandle k, TRAPS);
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 };
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);
75 // Widening of basic types. Throws IllegalArgumentException.
76 static void widen(jvalue* value, BasicType current_type, BasicType wide_type, TRAPS);
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);
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);
88 // Verification
89 static bool verify_class_access(Klass* current_class, Klass* new_class, bool classloader_only);
91 static bool verify_field_access(Klass* current_class,
92 Klass* resolved_class,
93 Klass* field_class,
94 AccessFlags access,
95 bool classloader_only,
96 bool protected_restriction = false);
97 static bool is_same_class_package(Klass* class1, Klass* class2);
98 static bool is_same_package_member(Klass* class1, Klass* class2, TRAPS);
100 static bool can_relax_access_check_for(
101 Klass* accessor, Klass* accesee, bool classloader_only);
103 // inner class reflection
104 // raise an ICCE unless the required relationship can be proven to hold
105 // If inner_is_member, require the inner to be a member of the outer.
106 // If !inner_is_member, require the inner to be anonymous (a non-member).
107 // Caller is responsible for figuring out in advance which case must be true.
108 static void check_for_inner_class(instanceKlassHandle outer, instanceKlassHandle inner,
109 bool inner_is_member, TRAPS);
111 //
112 // Support for reflection based on dynamic bytecode generation (JDK 1.4)
113 //
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 // Create a java.lang.reflect.Parameter object based on a
122 // MethodParameterElement
123 static oop new_parameter(Handle method, int index, Symbol* sym,
124 int flags, TRAPS);
126 private:
127 // method resolution for invoke
128 static methodHandle resolve_interface_call(instanceKlassHandle klass, methodHandle method, KlassHandle recv_klass, Handle receiver, TRAPS);
129 // Method call (shared by invoke_method and invoke_constructor)
130 static oop invoke(instanceKlassHandle klass, methodHandle method, Handle receiver, bool override, objArrayHandle ptypes, BasicType rtype, objArrayHandle args, bool is_method_invoke, TRAPS);
132 // Narrowing of basic types. Used to create correct jvalues for
133 // boolean, byte, char and short return return values from interpreter
134 // which are returned as ints. Throws IllegalArgumentException.
135 static void narrow(jvalue* value, BasicType narrow_type, TRAPS);
137 // Conversion
138 static BasicType basic_type_mirror_to_basic_type(oop basic_type_mirror, TRAPS);
140 public:
141 // Method invokation through java.lang.reflect.Method
142 static oop invoke_method(oop method_mirror, Handle receiver, objArrayHandle args, TRAPS);
143 // Method invokation through java.lang.reflect.Constructor
144 static oop invoke_constructor(oop method_mirror, objArrayHandle args, TRAPS);
146 };
148 #endif // SHARE_VM_RUNTIME_REFLECTION_HPP