/**
* Copyright (C) 2010-2017 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 Lesser General Public License as published
* by the Free Software Foundation, either version 3.0 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
* Lesser Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with EvoSuite. If not, see <http://www.gnu.org/licenses/>.
*/
package org.evosuite.instrumentation.error;
import org.objectweb.asm.Label;
import org.objectweb.asm.Opcodes;
public class CastErrorInstrumentation extends ErrorBranchInstrumenter {
public CastErrorInstrumentation(ErrorConditionMethodAdapter mv) {
super(mv);
}
@Override
public void visitTypeInsn(int opcode, String type) {
if (opcode == Opcodes.CHECKCAST) {
Label origTarget = new Label();
// Label origTarget = new AnnotatedLabel();
// origTarget.info = Boolean.FALSE;
mv.visitInsn(Opcodes.DUP);
mv.tagBranch();
mv.visitJumpInsn(Opcodes.IFNULL, origTarget);
mv.visitInsn(Opcodes.DUP);
mv.visitTypeInsn(Opcodes.INSTANCEOF, type);
mv.tagBranch();
mv.visitJumpInsn(Opcodes.IFNE, origTarget);
mv.visitTypeInsn(Opcodes.NEW, "java/lang/ClassCastException");
mv.visitInsn(Opcodes.DUP);
mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/ClassCastException",
"<init>", "()V", false);
mv.visitInsn(Opcodes.ATHROW);
mv.visitLabel(origTarget);
mv.tagBranchExit();
}
}
}