/**
* Marks the start of an exception handler.
*
* @param start beginning of the exception handler's scope (inclusive).
* @param end end of the exception handler's scope (exclusive).
* @param exception internal name of the type of exceptions handled by the handler.
*/
public void catchException(final Label start, final Label end, final Type exception) {
if (exception == null) {
mv.visitTryCatchBlock(start, end, mark(), null);
} else {
mv.visitTryCatchBlock(start, end, mark(), exception.getInternalName());
}
}
/**
* Generates an invoke method instruction.
*
* @param opcode the instruction's opcode.
* @param type the class in which the method is defined.
* @param method the method to be invoked.
*/
private void invokeInsn(final int opcode, final Type type, final Method method) {
String owner = type.getSort() == Type.ARRAY ? type.getDescriptor() : type.getInternalName();
mv.visitMethodInsn(opcode, owner, method.getName(), method.getDescriptor());
}
/**
* Generates a type dependent instruction.
*
* @param opcode the instruction's opcode.
* @param type the instruction's operand.
*/
private void typeInsn(final int opcode, final Type type) {
mv.visitTypeInsn(opcode, type.getInternalName());
}
/**
* Generates a get field or set field instruction.
*
* @param opcode the instruction's opcode.
* @param ownerType the class in which the field is defined.
* @param name the name of the field.
* @param fieldType the type of the field.
*/
private void fieldInsn(
final int opcode, final Type ownerType, final String name, final Type fieldType) {
mv.visitFieldInsn(opcode, ownerType.getInternalName(), name, fieldType.getDescriptor());
}
