diff -r eca8e9c3ec3e -r cd50c1894ce5 rt/emul/compact/src/main/java/java/lang/invoke/InfoFromMemberName.java --- a/rt/emul/compact/src/main/java/java/lang/invoke/InfoFromMemberName.java Sun Aug 17 20:09:05 2014 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,145 +0,0 @@ -/* - * Copyright (c) 2012, 2013, 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 java.lang.invoke; - -import java.security.*; -import java.lang.reflect.*; -import java.lang.invoke.MethodHandleNatives.Constants; -import java.lang.invoke.MethodHandles.Lookup; -import static java.lang.invoke.MethodHandleStatics.*; - -/* - * Auxiliary to MethodHandleInfo, wants to nest in MethodHandleInfo but must be non-public. - */ -/*non-public*/ -final -class InfoFromMemberName implements MethodHandleInfo { - private final MemberName member; - private final int referenceKind; - - InfoFromMemberName(Lookup lookup, MemberName member, byte referenceKind) { - assert(member.isResolved() || member.isMethodHandleInvoke()); - assert(member.referenceKindIsConsistentWith(referenceKind)); - this.member = member; - this.referenceKind = referenceKind; - } - - @Override - public Class getDeclaringClass() { - return member.getDeclaringClass(); - } - - @Override - public String getName() { - return member.getName(); - } - - @Override - public MethodType getMethodType() { - return member.getMethodOrFieldType(); - } - - @Override - public int getModifiers() { - return member.getModifiers(); - } - - @Override - public int getReferenceKind() { - return referenceKind; - } - - @Override - public String toString() { - return MethodHandleInfo.toString(getReferenceKind(), getDeclaringClass(), getName(), getMethodType()); - } - - @Override - public T reflectAs(Class expected, Lookup lookup) { - if (member.isMethodHandleInvoke() && !member.isVarargs()) { - // This member is an instance of a signature-polymorphic method, which cannot be reflected - // A method handle invoker can come in either of two forms: - // A generic placeholder (present in the source code, and varargs) - // and a signature-polymorphic instance (synthetic and not varargs). - // For more information see comments on {@link MethodHandleNatives#linkMethod}. - throw new IllegalArgumentException("cannot reflect signature polymorphic method"); - } - Member mem = AccessController.doPrivileged(new PrivilegedAction() { - public Member run() { - try { - return reflectUnchecked(); - } catch (ReflectiveOperationException ex) { - throw new IllegalArgumentException(ex); - } - } - }); - try { - Class defc = getDeclaringClass(); - byte refKind = (byte) getReferenceKind(); - lookup.checkAccess(refKind, defc, convertToMemberName(refKind, mem)); - } catch (IllegalAccessException ex) { - throw new IllegalArgumentException(ex); - } - return expected.cast(mem); - } - - private Member reflectUnchecked() throws ReflectiveOperationException { - byte refKind = (byte) getReferenceKind(); - Class defc = getDeclaringClass(); - boolean isPublic = Modifier.isPublic(getModifiers()); - if (MethodHandleNatives.refKindIsMethod(refKind)) { - if (isPublic) - return defc.getMethod(getName(), getMethodType().parameterArray()); - else - return defc.getDeclaredMethod(getName(), getMethodType().parameterArray()); - } else if (MethodHandleNatives.refKindIsConstructor(refKind)) { - if (isPublic) - return defc.getConstructor(getMethodType().parameterArray()); - else - return defc.getDeclaredConstructor(getMethodType().parameterArray()); - } else if (MethodHandleNatives.refKindIsField(refKind)) { - if (isPublic) - return defc.getField(getName()); - else - return defc.getDeclaredField(getName()); - } else { - throw new IllegalArgumentException("referenceKind="+refKind); - } - } - - private static MemberName convertToMemberName(byte refKind, Member mem) throws IllegalAccessException { - if (mem instanceof Method) { - boolean wantSpecial = (refKind == REF_invokeSpecial); - return new MemberName((Method) mem, wantSpecial); - } else if (mem instanceof Constructor) { - return new MemberName((Constructor) mem); - } else if (mem instanceof Field) { - boolean isSetter = (refKind == REF_putField || refKind == REF_putStatic); - return new MemberName((Field) mem, isSetter); - } - throw new InternalError(mem.getClass().getName()); - } -}