| /* |
| * Copyright (c) 2003, 2008, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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. |
| */ |
| |
| package sun.reflect.generics.factory; |
| |
| import java.lang.reflect.Array; |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.GenericDeclaration; |
| import java.lang.reflect.Method; |
| import java.lang.reflect.ParameterizedType; |
| import java.lang.reflect.Type; |
| import java.lang.reflect.TypeVariable; |
| import java.lang.reflect.WildcardType; |
| |
| |
| import sun.reflect.generics.reflectiveObjects.*; |
| import sun.reflect.generics.scope.Scope; |
| import sun.reflect.generics.tree.FieldTypeSignature; |
| |
| |
| /** |
| * Factory for reflective generic type objects for use by |
| * core reflection (java.lang.reflect). |
| */ |
| public class CoreReflectionFactory implements GenericsFactory { |
| private GenericDeclaration decl; |
| private Scope scope; |
| |
| private CoreReflectionFactory(GenericDeclaration d, Scope s) { |
| decl = d; |
| scope = s; |
| } |
| |
| private GenericDeclaration getDecl(){ return decl;} |
| |
| private Scope getScope(){ return scope;} |
| |
| |
| private ClassLoader getDeclsLoader() { |
| if (decl instanceof Class) {return ((Class) decl).getClassLoader();} |
| if (decl instanceof Method) { |
| return ((Method) decl).getDeclaringClass().getClassLoader(); |
| } |
| assert decl instanceof Constructor : "Constructor expected"; |
| return ((Constructor) decl).getDeclaringClass().getClassLoader(); |
| |
| } |
| |
| /** |
| * Factory for this class. Returns an instance of |
| * <tt>CoreReflectionFactory</tt> for the declaration and scope |
| * provided. |
| * This factory will produce reflective objects of the appropriate |
| * kind. Classes produced will be those that would be loaded by the |
| * defining class loader of the declaration <tt>d</tt> (if <tt>d</tt> |
| * is a type declaration, or by the defining loader of the declaring |
| * class of <tt>d</tt> otherwise. |
| * <p> Type variables will be created or lookup as necessary in the |
| * scope <tt> s</tt>. |
| * @param d - the generic declaration (class, interface, method or |
| * constructor) that thsi factory services |
| * @param s the scope in which the factory will allocate and search for |
| * type variables |
| * @return an instance of <tt>CoreReflectionFactory</tt> |
| */ |
| public static CoreReflectionFactory make(GenericDeclaration d, Scope s) { |
| return new CoreReflectionFactory(d, s); |
| } |
| |
| public TypeVariable<?> makeTypeVariable(String name, |
| FieldTypeSignature[] bounds){ |
| return TypeVariableImpl.make(getDecl(), name, bounds, this); |
| } |
| |
| public WildcardType makeWildcard(FieldTypeSignature[] ubs, |
| FieldTypeSignature[] lbs) { |
| return WildcardTypeImpl.make(ubs, lbs, this); |
| } |
| |
| public ParameterizedType makeParameterizedType(Type declaration, |
| Type[] typeArgs, |
| Type owner) { |
| return ParameterizedTypeImpl.make((Class<?>) declaration, |
| typeArgs, owner); |
| } |
| |
| public TypeVariable<?> findTypeVariable(String name){ |
| return getScope().lookup(name); |
| } |
| |
| public Type makeNamedType(String name){ |
| try {return Class.forName(name, false, // don't initialize |
| getDeclsLoader());} |
| catch (ClassNotFoundException c) { |
| throw new TypeNotPresentException(name, c); |
| } |
| } |
| |
| public Type makeArrayType(Type componentType){ |
| if (componentType instanceof Class<?>) |
| return Array.newInstance((Class<?>) componentType, 0).getClass(); |
| else |
| return GenericArrayTypeImpl.make(componentType); |
| } |
| |
| public Type makeByte(){return byte.class;} |
| public Type makeBool(){return boolean.class;} |
| public Type makeShort(){return short.class;} |
| public Type makeChar(){return char.class;} |
| public Type makeInt(){return int.class;} |
| public Type makeLong(){return long.class;} |
| public Type makeFloat(){return float.class;} |
| public Type makeDouble(){return double.class;} |
| |
| public Type makeVoid(){return void.class;} |
| } |