| /* |
| * Copyright (c) 2011, 2018, 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. |
| */ |
| |
| package vm.mlvm.meth.share.transform.v2; |
| |
| import java.lang.invoke.MethodHandle; |
| import java.lang.invoke.MethodType; |
| |
| import vm.mlvm.meth.share.Argument; |
| import vm.mlvm.meth.share.Arguments; |
| import vm.mlvm.meth.share.TestTypes; |
| |
| public abstract class MHCastTF extends MHBasicUnaryTF { |
| |
| protected final Argument[] newArgs; |
| protected final Argument newRetVal; |
| protected final MethodType newMT; |
| |
| protected MHCastTF(MHCall target, Class<?> newRetType, Class<?>[] newArgTypes) { |
| super(target); |
| |
| Argument[] targetArgs = target.getArgs(); |
| |
| if ( newArgTypes.length != targetArgs.length ) |
| throw new IllegalArgumentException("newArgTypes length (" + newArgTypes.length + ") should be equal to argument count (" + targetArgs.length + ")"); |
| |
| this.newArgs = new Argument[newArgTypes.length]; |
| for ( int i = 0; i < this.newArgs.length; i++ ) { |
| if ( ! TestTypes.canConvertType(targetArgs[i].getType(), this.newArgs[i].getType(), false) ) |
| throw new IllegalArgumentException("Can't convert argument #" + i + " from [" + targetArgs[i].getType() + " to [" + this.newArgs[i].getType()); |
| |
| this.newArgs[i] = convert(targetArgs[i], newArgTypes[i], false); |
| } |
| |
| this.newRetVal = convert(target.getRetVal(), newRetType, true); |
| |
| this.newMT = MethodType.methodType(this.newRetVal.getType(), Arguments.typesArray(this.newArgs)); |
| } |
| |
| protected abstract Argument convert(Argument argument, Class<?> newClass, boolean isRetType); |
| |
| @Override |
| protected abstract MethodHandle computeInboundMH(MethodHandle targetMH) throws NoSuchMethodException, IllegalAccessException; |
| |
| @Override |
| protected Argument[] computeInboundArgs(Argument[] targetArgs) { |
| return this.newArgs; |
| } |
| |
| @Override |
| protected Argument computeRetVal(Argument targetRetVal) { |
| return this.newRetVal; |
| } |
| |
| @Override |
| protected String getDescription() { |
| return "newRetVal=[" + this.newRetVal + "]; newArgs=[" + this.newArgs + "]"; |
| } |
| |
| } |