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src/share/vm/runtime/reflection.hpp@f47fa50d9b9c (annotated)

src/share/vm/runtime/reflection.hpp

Fri, 28 Mar 2014 10:12:48 -0700

author

vlivanov

date

Fri, 28 Mar 2014 10:12:48 -0700

changeset 6527

f47fa50d9b9c

parent 6198

55fb97c4c58d

child 6876

710a3c8b516e

permissions

-rw-r--r--

8035887: VM crashes trying to force inlining the recursive call
Reviewed-by: kvn, twisti

duke@435	1	/*
mikael@6198	2	* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#ifndef SHARE_VM_RUNTIME_REFLECTION_HPP
stefank@2314	26	#define SHARE_VM_RUNTIME_REFLECTION_HPP
stefank@2314	27
stefank@2314	28	#include "oops/oop.hpp"
stefank@2314	29	#include "runtime/fieldDescriptor.hpp"
stefank@2314	30	#include "utilities/accessFlags.hpp"
stefank@2314	31	#include "utilities/growableArray.hpp"
stefank@2314	32
duke@435	33	// Class Reflection contains utility methods needed for implementing the
duke@435	34	// reflection api.
duke@435	35	//
duke@435	36	// Used by functions in the JVM interface.
duke@435	37	//
duke@435	38	// NOTE that in JDK 1.4 most of reflection is now implemented in Java
duke@435	39	// using dynamic bytecode generation. The Array class has not yet been
duke@435	40	// rewritten using bytecodes; if it were, most of the rest of this
duke@435	41	// class could go away, as well as a few more entry points in jvm.cpp.
duke@435	42
duke@435	43	class FieldStream;
duke@435	44
duke@435	45	class Reflection: public AllStatic {
duke@435	46	private:
duke@435	47	// Access checking
coleenp@4037	48	static bool reflect_check_access(Klass* field_class, AccessFlags acc, Klass* target_class, bool is_method_invoke, TRAPS);
duke@435	49
duke@435	50	// Conversion
coleenp@4037	51	static Klass* basic_type_mirror_to_arrayklass(oop basic_type_mirror, TRAPS);
coleenp@4037	52	static oop basic_type_arrayklass_to_mirror(Klass* basic_type_arrayklass, TRAPS);
duke@435	53
duke@435	54	static objArrayHandle get_parameter_types(methodHandle method, int parameter_count, oop* return_type, TRAPS);
duke@435	55	static objArrayHandle get_exception_types(methodHandle method, TRAPS);
duke@435	56	// Creating new java.lang.reflect.xxx wrappers
coleenp@2497	57	static Handle new_type(Symbol* signature, KlassHandle k, TRAPS);
duke@435	58
duke@435	59	public:
duke@435	60	// Constants defined by java reflection api classes
duke@435	61	enum SomeConstants {
duke@435	62	PUBLIC = 0,
duke@435	63	DECLARED = 1,
duke@435	64	MEMBER_PUBLIC = 0,
duke@435	65	MEMBER_DECLARED = 1,
duke@435	66	MAX_DIM = 255
duke@435	67	};
duke@435	68
duke@435	69	// Boxing. Returns boxed value of appropriate type. Throws IllegalArgumentException.
duke@435	70	static oop box(jvalue* v, BasicType type, TRAPS);
duke@435	71	// Unboxing. Returns type code and sets value.
duke@435	72	static BasicType unbox_for_primitive(oop boxed_value, jvalue* value, TRAPS);
duke@435	73	static BasicType unbox_for_regular_object(oop boxed_value, jvalue* value);
duke@435	74
duke@435	75	// Widening of basic types. Throws IllegalArgumentException.
duke@435	76	static void widen(jvalue* value, BasicType current_type, BasicType wide_type, TRAPS);
duke@435	77
duke@435	78	// Reflective array access. Returns type code. Throws ArrayIndexOutOfBoundsException.
duke@435	79	static BasicType array_get(jvalue* value, arrayOop a, int index, TRAPS);
duke@435	80	static void array_set(jvalue* value, arrayOop a, int index, BasicType value_type, TRAPS);
duke@435	81	// Returns mirror on array element type (NULL for basic type arrays and non-arrays).
duke@435	82	static oop array_component_type(oop mirror, TRAPS);
duke@435	83
duke@435	84	// Object creation
duke@435	85	static arrayOop reflect_new_array(oop element_mirror, jint length, TRAPS);
duke@435	86	static arrayOop reflect_new_multi_array(oop element_mirror, typeArrayOop dimensions, TRAPS);
duke@435	87
duke@435	88	// Verification
coleenp@4037	89	static bool verify_class_access(Klass* current_class, Klass* new_class, bool classloader_only);
duke@435	90
coleenp@4037	91	static bool verify_field_access(Klass* current_class,
coleenp@4037	92	Klass* resolved_class,
coleenp@4037	93	Klass* field_class,
duke@435	94	AccessFlags access,
duke@435	95	bool classloader_only,
duke@435	96	bool protected_restriction = false);
coleenp@4037	97	static bool is_same_class_package(Klass* class1, Klass* class2);
coleenp@4037	98	static bool is_same_package_member(Klass* class1, Klass* class2, TRAPS);
duke@435	99
duke@435	100	static bool can_relax_access_check_for(
coleenp@4037	101	Klass* accessor, Klass* accesee, bool classloader_only);
duke@435	102
duke@435	103	// inner class reflection
jrose@1100	104	// raise an ICCE unless the required relationship can be proven to hold
jrose@1100	105	// If inner_is_member, require the inner to be a member of the outer.
jrose@1100	106	// If !inner_is_member, require the inner to be anonymous (a non-member).
jrose@1100	107	// Caller is responsible for figuring out in advance which case must be true.
jrose@1100	108	static void check_for_inner_class(instanceKlassHandle outer, instanceKlassHandle inner,
jrose@1100	109	bool inner_is_member, TRAPS);
duke@435	110
duke@435	111	//
duke@435	112	// Support for reflection based on dynamic bytecode generation (JDK 1.4)
duke@435	113	//
duke@435	114
duke@435	115	// Create a java.lang.reflect.Method object based on a method
duke@435	116	static oop new_method(methodHandle method, bool intern_name, bool for_constant_pool_access, TRAPS);
duke@435	117	// Create a java.lang.reflect.Constructor object based on a method
duke@435	118	static oop new_constructor(methodHandle method, TRAPS);
duke@435	119	// Create a java.lang.reflect.Field object based on a field descriptor
duke@435	120	static oop new_field(fieldDescriptor* fd, bool intern_name, TRAPS);
coleenp@4398	121	// Create a java.lang.reflect.Parameter object based on a
coleenp@4398	122	// MethodParameterElement
coleenp@4398	123	static oop new_parameter(Handle method, int index, Symbol* sym,
coleenp@4398	124	int flags, TRAPS);
duke@435	125
duke@435	126	private:
duke@435	127	// method resolution for invoke
duke@435	128	static methodHandle resolve_interface_call(instanceKlassHandle klass, methodHandle method, KlassHandle recv_klass, Handle receiver, TRAPS);
duke@435	129	// Method call (shared by invoke_method and invoke_constructor)
duke@435	130	static oop invoke(instanceKlassHandle klass, methodHandle method, Handle receiver, bool override, objArrayHandle ptypes, BasicType rtype, objArrayHandle args, bool is_method_invoke, TRAPS);
duke@435	131
duke@435	132	// Narrowing of basic types. Used to create correct jvalues for
duke@435	133	// boolean, byte, char and short return return values from interpreter
duke@435	134	// which are returned as ints. Throws IllegalArgumentException.
duke@435	135	static void narrow(jvalue* value, BasicType narrow_type, TRAPS);
duke@435	136
duke@435	137	// Conversion
duke@435	138	static BasicType basic_type_mirror_to_basic_type(oop basic_type_mirror, TRAPS);
duke@435	139
duke@435	140	public:
duke@435	141	// Method invokation through java.lang.reflect.Method
duke@435	142	static oop invoke_method(oop method_mirror, Handle receiver, objArrayHandle args, TRAPS);
duke@435	143	// Method invokation through java.lang.reflect.Constructor
duke@435	144	static oop invoke_constructor(oop method_mirror, objArrayHandle args, TRAPS);
duke@435	145
duke@435	146	};
stefank@2314	147
stefank@2314	148	#endif // SHARE_VM_RUNTIME_REFLECTION_HPP