Mercurial > hg > truffle
view src/share/vm/runtime/reflection.hpp @ 8331:1f1c33c860a1
Enable convert deopts to guards optimization.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
---|---|
date | Sun, 17 Mar 2013 21:27:09 +0100 |
parents | ade95d680b42 |
children | de6a9e811145 |
line wrap: on
line source
/* * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_RUNTIME_REFLECTION_HPP #define SHARE_VM_RUNTIME_REFLECTION_HPP #include "oops/oop.hpp" #include "runtime/fieldDescriptor.hpp" #include "utilities/accessFlags.hpp" #include "utilities/growableArray.hpp" // Class Reflection contains utility methods needed for implementing the // reflection api. // // Used by functions in the JVM interface. // // NOTE that in JDK 1.4 most of reflection is now implemented in Java // using dynamic bytecode generation. The Array class has not yet been // rewritten using bytecodes; if it were, most of the rest of this // class could go away, as well as a few more entry points in jvm.cpp. class FieldStream; class Reflection: public AllStatic { private: // Access checking static bool reflect_check_access(Klass* field_class, AccessFlags acc, Klass* target_class, bool is_method_invoke, TRAPS); // Conversion static Klass* basic_type_mirror_to_arrayklass(oop basic_type_mirror, TRAPS); static oop basic_type_arrayklass_to_mirror(Klass* basic_type_arrayklass, TRAPS); static objArrayHandle get_parameter_types(methodHandle method, int parameter_count, oop* return_type, TRAPS); static objArrayHandle get_exception_types(methodHandle method, TRAPS); // Creating new java.lang.reflect.xxx wrappers static Handle new_type(Symbol* signature, KlassHandle k, TRAPS); public: // Constants defined by java reflection api classes enum SomeConstants { PUBLIC = 0, DECLARED = 1, MEMBER_PUBLIC = 0, MEMBER_DECLARED = 1, MAX_DIM = 255 }; // Boxing. Returns boxed value of appropriate type. Throws IllegalArgumentException. static oop box(jvalue* v, BasicType type, TRAPS); // Unboxing. Returns type code and sets value. static BasicType unbox_for_primitive(oop boxed_value, jvalue* value, TRAPS); static BasicType unbox_for_regular_object(oop boxed_value, jvalue* value); // Widening of basic types. Throws IllegalArgumentException. static void widen(jvalue* value, BasicType current_type, BasicType wide_type, TRAPS); // Reflective array access. Returns type code. Throws ArrayIndexOutOfBoundsException. static BasicType array_get(jvalue* value, arrayOop a, int index, TRAPS); static void array_set(jvalue* value, arrayOop a, int index, BasicType value_type, TRAPS); // Returns mirror on array element type (NULL for basic type arrays and non-arrays). static oop array_component_type(oop mirror, TRAPS); // Object creation static arrayOop reflect_new_array(oop element_mirror, jint length, TRAPS); static arrayOop reflect_new_multi_array(oop element_mirror, typeArrayOop dimensions, TRAPS); // Verification static bool verify_class_access(Klass* current_class, Klass* new_class, bool classloader_only); static bool verify_field_access(Klass* current_class, Klass* resolved_class, Klass* field_class, AccessFlags access, bool classloader_only, bool protected_restriction = false); static bool is_same_class_package(Klass* class1, Klass* class2); static bool is_same_package_member(Klass* class1, Klass* class2, TRAPS); static bool can_relax_access_check_for( Klass* accessor, Klass* accesee, bool classloader_only); // inner class reflection // raise an ICCE unless the required relationship can be proven to hold // If inner_is_member, require the inner to be a member of the outer. // If !inner_is_member, require the inner to be anonymous (a non-member). // Caller is responsible for figuring out in advance which case must be true. static void check_for_inner_class(instanceKlassHandle outer, instanceKlassHandle inner, bool inner_is_member, TRAPS); // // Support for reflection based on dynamic bytecode generation (JDK 1.4) // // Create a java.lang.reflect.Method object based on a method static oop new_method(methodHandle method, bool intern_name, bool for_constant_pool_access, TRAPS); // Create a java.lang.reflect.Constructor object based on a method static oop new_constructor(methodHandle method, TRAPS); // Create a java.lang.reflect.Field object based on a field descriptor static oop new_field(fieldDescriptor* fd, bool intern_name, TRAPS); // Create a java.lang.reflect.Parameter object based on a // MethodParameterElement static oop new_parameter(Handle method, int index, Symbol* sym, int flags, TRAPS); private: // method resolution for invoke static methodHandle resolve_interface_call(instanceKlassHandle klass, methodHandle method, KlassHandle recv_klass, Handle receiver, TRAPS); // Method call (shared by invoke_method and invoke_constructor) static oop invoke(instanceKlassHandle klass, methodHandle method, Handle receiver, bool override, objArrayHandle ptypes, BasicType rtype, objArrayHandle args, bool is_method_invoke, TRAPS); // Narrowing of basic types. Used to create correct jvalues for // boolean, byte, char and short return return values from interpreter // which are returned as ints. Throws IllegalArgumentException. static void narrow(jvalue* value, BasicType narrow_type, TRAPS); // Conversion static BasicType basic_type_mirror_to_basic_type(oop basic_type_mirror, TRAPS); public: // Method invokation through java.lang.reflect.Method static oop invoke_method(oop method_mirror, Handle receiver, objArrayHandle args, TRAPS); // Method invokation through java.lang.reflect.Constructor static oop invoke_constructor(oop method_mirror, objArrayHandle args, TRAPS); }; #endif // SHARE_VM_RUNTIME_REFLECTION_HPP