Java tutorial
/** * Copyright (C) 2011,2012 Gordon Fraser, Andrea Arcuri and EvoSuite * contributors * * This file is part of EvoSuite. * * EvoSuite is free software: you can redistribute it and/or modify it under the * terms of the GNU Public License as published by the Free Software Foundation, * either version 3 of the License, or (at your option) any later version. * * EvoSuite 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 Public License for more details. * * You should have received a copy of the GNU Public License along with * EvoSuite. If not, see <http://www.gnu.org/licenses/>. */ package org.evosuite.instrumentation; import java.util.HashMap; import java.util.Map; import org.objectweb.asm.AnnotationVisitor; import org.objectweb.asm.Attribute; import org.objectweb.asm.Label; import org.objectweb.asm.MethodVisitor; import org.objectweb.asm.Opcodes; /** * MethodVisitor that acts as a proxy to two other visitors * * @author Gordon Fraser */ public class MultiMethodVisitor extends MethodVisitor { MethodVisitor mv1; MethodVisitor mv2; Map<Label, Label> label_mapping = new HashMap<Label, Label>(); /** * <p>Constructor for MultiMethodVisitor.</p> * * @param mv1 a {@link org.objectweb.asm.MethodVisitor} object. * @param mv2 a {@link org.objectweb.asm.MethodVisitor} object. */ public MultiMethodVisitor(MethodVisitor mv1, MethodVisitor mv2) { super(Opcodes.ASM4); this.mv1 = mv1; this.mv2 = mv2; } private Label getLabel(Label l) { if (label_mapping.containsKey(l)) return label_mapping.get(l); else { Label l2 = new Label(); label_mapping.put(l, l2); return l2; } } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitAnnotation(java.lang.String, boolean) */ /** {@inheritDoc} */ @Override public AnnotationVisitor visitAnnotation(String arg0, boolean arg1) { mv1.visitAnnotation(arg0, arg1); return mv2.visitAnnotation(arg0, arg1); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitAnnotationDefault() */ /** {@inheritDoc} */ @Override public AnnotationVisitor visitAnnotationDefault() { mv1.visitAnnotationDefault(); return mv2.visitAnnotationDefault(); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitAttribute(org.objectweb.asm.Attribute) */ /** {@inheritDoc} */ @Override public void visitAttribute(Attribute arg0) { mv1.visitAttribute(arg0); mv2.visitAttribute(arg0); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitCode() */ /** {@inheritDoc} */ @Override public void visitCode() { mv1.visitCode(); mv2.visitCode(); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitEnd() */ /** {@inheritDoc} */ @Override public void visitEnd() { mv1.visitEnd(); mv2.visitEnd(); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitFieldInsn(int, java.lang.String, java.lang.String, java.lang.String) */ /** {@inheritDoc} */ @Override public void visitFieldInsn(int arg0, String arg1, String arg2, String arg3) { mv1.visitFieldInsn(arg0, arg1, arg2, arg3); mv2.visitFieldInsn(arg0, arg1, arg2, arg3); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitFrame(int, int, java.lang.Object[], int, java.lang.Object[]) */ /** {@inheritDoc} */ @Override public void visitFrame(int arg0, int arg1, Object[] arg2, int arg3, Object[] arg4) { mv1.visitFrame(arg0, arg1, arg2, arg3, arg4); mv2.visitFrame(arg0, arg1, arg2, arg3, arg4); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitIincInsn(int, int) */ /** {@inheritDoc} */ @Override public void visitIincInsn(int arg0, int arg1) { mv1.visitIincInsn(arg0, arg1); mv2.visitIincInsn(arg0, arg1); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitInsn(int) */ /** {@inheritDoc} */ @Override public void visitInsn(int arg0) { mv1.visitInsn(arg0); mv2.visitInsn(arg0); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitIntInsn(int, int) */ /** {@inheritDoc} */ @Override public void visitIntInsn(int arg0, int arg1) { mv1.visitIntInsn(arg0, arg1); mv2.visitIntInsn(arg0, arg1); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitJumpInsn(int, org.objectweb.asm.Label) */ /** {@inheritDoc} */ @Override public void visitJumpInsn(int arg0, Label arg1) { mv1.visitJumpInsn(arg0, arg1); mv2.visitJumpInsn(arg0, getLabel(arg1)); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitLabel(org.objectweb.asm.Label) */ /** {@inheritDoc} */ @Override public void visitLabel(Label arg0) { mv1.visitLabel(arg0); mv2.visitLabel(getLabel(arg0)); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitLdcInsn(java.lang.Object) */ /** {@inheritDoc} */ @Override public void visitLdcInsn(Object arg0) { mv1.visitLdcInsn(arg0); mv2.visitLdcInsn(arg0); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitLineNumber(int, org.objectweb.asm.Label) */ /** {@inheritDoc} */ @Override public void visitLineNumber(int arg0, Label arg1) { mv1.visitLineNumber(arg0, arg1); //mv2.visitLineNumber(arg0, arg1); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitLocalVariable(java.lang.String, java.lang.String, java.lang.String, org.objectweb.asm.Label, org.objectweb.asm.Label, int) */ /** {@inheritDoc} */ @Override public void visitLocalVariable(String arg0, String arg1, String arg2, Label arg3, Label arg4, int arg5) { mv1.visitLocalVariable(arg0, arg1, arg2, arg3, arg4, arg5); mv2.visitLocalVariable(arg0, arg1, arg2, getLabel(arg3), getLabel(arg4), arg5); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitLookupSwitchInsn(org.objectweb.asm.Label, int[], org.objectweb.asm.Label[]) */ /** {@inheritDoc} */ @Override public void visitLookupSwitchInsn(Label arg0, int[] arg1, Label[] arg2) { mv1.visitLookupSwitchInsn(arg0, arg1, arg2); Label[] arg2Copy = new Label[arg2.length]; for (int i = 0; i < arg2.length; i++) arg2Copy[i] = getLabel(arg2[i]); mv2.visitLookupSwitchInsn(getLabel(arg0), arg1, arg2Copy); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitMaxs(int, int) */ /** {@inheritDoc} */ @Override public void visitMaxs(int arg0, int arg1) { mv1.visitMaxs(arg0, arg1); mv2.visitMaxs(arg0, arg1); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitMethodInsn(int, java.lang.String, java.lang.String, java.lang.String) */ /** {@inheritDoc} */ @Override public void visitMethodInsn(int arg0, String arg1, String arg2, String arg3) { mv1.visitMethodInsn(arg0, arg1, arg2, arg3); mv2.visitMethodInsn(arg0, arg1, arg2, arg3); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitMultiANewArrayInsn(java.lang.String, int) */ /** {@inheritDoc} */ @Override public void visitMultiANewArrayInsn(String arg0, int arg1) { mv1.visitMultiANewArrayInsn(arg0, arg1); mv2.visitMultiANewArrayInsn(arg0, arg1); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitParameterAnnotation(int, java.lang.String, boolean) */ /** {@inheritDoc} */ @Override public AnnotationVisitor visitParameterAnnotation(int arg0, String arg1, boolean arg2) { mv1.visitParameterAnnotation(arg0, arg1, arg2); return mv2.visitParameterAnnotation(arg0, arg1, arg2); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitTableSwitchInsn(int, int, org.objectweb.asm.Label, org.objectweb.asm.Label[]) */ /** {@inheritDoc} */ @Override public void visitTableSwitchInsn(int arg0, int arg1, Label arg2, Label... arg3) { mv1.visitTableSwitchInsn(arg0, arg1, arg2, arg3); Label[] arg3Copy = new Label[arg3.length]; for (int i = 0; i < arg3.length; i++) arg3Copy[i] = getLabel(arg3[i]); mv2.visitTableSwitchInsn(arg0, arg1, getLabel(arg2), arg3Copy); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitTryCatchBlock(org.objectweb.asm.Label, org.objectweb.asm.Label, org.objectweb.asm.Label, java.lang.String) */ /** {@inheritDoc} */ @Override public void visitTryCatchBlock(Label arg0, Label arg1, Label arg2, String arg3) { mv1.visitTryCatchBlock(arg0, arg1, arg2, arg3); mv2.visitTryCatchBlock(getLabel(arg0), getLabel(arg1), getLabel(arg2), arg3); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitTypeInsn(int, java.lang.String) */ /** {@inheritDoc} */ @Override public void visitTypeInsn(int arg0, String arg1) { mv1.visitTypeInsn(arg0, arg1); mv2.visitTypeInsn(arg0, arg1); } /* (non-Javadoc) * @see org.objectweb.asm.MethodVisitor#visitVarInsn(int, int) */ /** {@inheritDoc} */ @Override public void visitVarInsn(int arg0, int arg1) { mv1.visitVarInsn(arg0, arg1); mv2.visitVarInsn(arg0, arg1); } }