| /* |
| * 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.MethodHandles; |
| import java.lang.reflect.Array; |
| |
| import vm.mlvm.meth.share.Argument; |
| import vm.mlvm.meth.share.MHUtils; |
| |
| public class MHArraySetElemTF extends MHNullaryTF { |
| |
| private final Argument arrayArg; |
| private final Argument idxArg; |
| private final int idx; |
| private final Argument newValueArg; |
| |
| public MHArraySetElemTF(Argument array, Argument idxArg, Argument newValue) { |
| this.arrayArg = array; |
| this.idxArg = idxArg; |
| this.idx = (Integer) idxArg.getValue(); |
| this.newValueArg = newValue; |
| } |
| |
| @Override |
| protected void check() throws IllegalArgumentException { |
| if ( ! this.arrayArg.getType().isArray() ) |
| throw new IllegalArgumentException("Argument " + this.arrayArg + " should be an array!"); |
| |
| if ( ! this.idxArg.getType().equals(int.class) ) |
| throw new IllegalArgumentException("Argument " + this.idxArg + " should be of type int!"); |
| |
| if ( this.idx < 0 || this.idx >= Array.getLength(this.arrayArg.getValue()) ) |
| throw new IllegalArgumentException("Index " + this.idx + " is out of bounds for array " + this.arrayArg); |
| |
| MHUtils.assertAssignableType("Can't assign new value to array", this.arrayArg.getType().getComponentType(), this.newValueArg.getType()); |
| } |
| |
| @Override |
| protected Argument computeRetVal() { |
| return new Argument(void.class, null); |
| } |
| |
| @Override |
| protected Argument[] computeInboundArgs() { |
| return new Argument[] { this.arrayArg, this.idxArg, this.newValueArg }; |
| } |
| |
| @Override |
| protected MethodHandle computeInboundMH() { |
| return MethodHandles.arrayElementSetter(this.arrayArg.getType()); |
| } |
| |
| @Override |
| protected String getName() { |
| return "arrayElementSetter"; |
| } |
| |
| @Override |
| protected String getDescription() { |
| return "array=" + this.arrayArg + "; idx=" + this.idxArg + "; newValue=" + this.newValueArg; |
| } |
| |
| } |