Mercurial > hg > Members > kono > jpf-core
view src/main/gov/nasa/jpf/jvm/bytecode/ANEWARRAY.java @ 0:61d41facf527
initial v8 import (history reset)
author | Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> |
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date | Fri, 23 Jan 2015 10:14:01 -0800 |
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/* * Copyright (C) 2014, United States Government, as represented by the * Administrator of the National Aeronautics and Space Administration. * All rights reserved. * * The Java Pathfinder core (jpf-core) platform is licensed under the * Apache License, Version 2.0 (the "License"); you may not use this file except * in compliance with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0. * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package gov.nasa.jpf.jvm.bytecode; import gov.nasa.jpf.vm.ClassInfo; import gov.nasa.jpf.vm.ClassLoaderInfo; import gov.nasa.jpf.vm.ElementInfo; import gov.nasa.jpf.vm.Heap; import gov.nasa.jpf.vm.Instruction; import gov.nasa.jpf.vm.LoadOnJPFRequired; import gov.nasa.jpf.vm.StackFrame; import gov.nasa.jpf.vm.ThreadInfo; import gov.nasa.jpf.vm.Types; /** * Create new array of reference * ..., count => ..., arrayref */ public class ANEWARRAY extends NewArrayInstruction { public ANEWARRAY (String typeDescriptor){ type = Types.getTypeSignature(typeDescriptor, true); } @Override public Instruction execute (ThreadInfo ti) { // resolve the component class first String compType = Types.getTypeName(type); if(Types.isReferenceSignature(type)) { try { ti.resolveReferencedClass(compType); } catch(LoadOnJPFRequired lre) { return ti.getPC(); } } // there is no clinit for array classes, but we still have to create a class object // since its a builtin class, we also don't have to bother with NoClassDefFoundErrors String clsName = "[" + type; ClassInfo ci = ClassLoaderInfo.getCurrentResolvedClassInfo(clsName); if (!ci.isRegistered()) { ci.registerClass(ti); ci.setInitialized(); } StackFrame frame = ti.getModifiableTopFrame(); arrayLength = frame.pop(); if (arrayLength < 0){ return ti.createAndThrowException("java.lang.NegativeArraySizeException"); } Heap heap = ti.getHeap(); if (heap.isOutOfMemory()) { // simulate OutOfMemoryError return ti.createAndThrowException("java.lang.OutOfMemoryError", "trying to allocate new " + Types.getTypeName(type) + "[" + arrayLength + "]"); } ElementInfo eiArray = heap.newArray(type, arrayLength, ti); int aRef = eiArray.getObjectRef(); // pushes the object reference on the top stack frame frame.push(aRef, true); return getNext(ti); } @Override public int getLength () { return 3; // opcode, index1, index2 } @Override public int getByteCode () { return 0xBD; } @Override public void accept(JVMInstructionVisitor insVisitor) { insVisitor.visit(this); } }