/**
* Handles the arguments to the before advice.
*
* @param cv
* @param adviceMethodInfo
* @param joinPointInstanceIndex
*/
public void createBeforeAdviceArgumentHandling(
final MethodVisitor cv,
final AdviceMethodInfo adviceMethodInfo,
final int joinPointInstanceIndex) {
final String joinPointClassName = adviceMethodInfo.getJoinPointClassName();
final int joinPointIndex = joinPointInstanceIndex;
cv.visitFieldInsn(
GETSTATIC, joinPointClassName, SIGNATURE_FIELD_NAME, METHOD_SIGNATURE_IMPL_CLASS_SIGNATURE);
cv.visitMethodInsn(
INVOKEVIRTUAL,
METHOD_SIGNATURE_IMPL_CLASS_NAME,
GET_METHOD_METHOD_NAME,
GET_METHOD_METHOD_SIGNATURE);
if (Type.getArgumentTypes(adviceMethodInfo.getCalleeMemberDesc()).length == 0) {
cv.visitInsn(ACONST_NULL);
} else {
cv.visitVarInsn(ALOAD, joinPointIndex);
cv.visitMethodInsn(
INVOKEVIRTUAL, joinPointClassName, GET_RTTI_METHOD_NAME, GET_RTTI_METHOD_SIGNATURE);
cv.visitTypeInsn(CHECKCAST, METHOD_RTTI_IMPL_CLASS_NAME);
cv.visitMethodInsn(
INVOKEVIRTUAL,
METHOD_RTTI_IMPL_CLASS_NAME,
GET_PARAMETER_VALUES_METHOD_NAME,
GET_ARGUMENTS_METHOD_SIGNATURE);
}
cv.visitVarInsn(ALOAD, joinPointIndex);
cv.visitFieldInsn(
GETFIELD,
joinPointClassName,
CALLEE_INSTANCE_FIELD_NAME,
adviceMethodInfo.getCalleeClassSignature());
}
public void createBeforeOrAfterAdviceArgumentHandling(
MethodVisitor methodVisitor,
CompilerInput compilerInput,
Type[] types,
AdviceMethodInfo adviceMethodInfo,
int i) {
if (AdviceType.BEFORE.equals(adviceMethodInfo.getAdviceInfo().getType())) {
createBeforeAdviceArgumentHandling(
methodVisitor, adviceMethodInfo, compilerInput.joinPointInstanceIndex);
} else {
// after advice no matter what
createAfterAdviceArgumentHandling(
methodVisitor, adviceMethodInfo, compilerInput.joinPointInstanceIndex);
}
}