@Override
public void visit(ExpressionVector vector) {
List<SEXP> list = Lists.newArrayList();
for (SEXP exp : vector) {
list.add(substitute(exp));
}
result = new ExpressionVector(list, vector.getAttributes());
}
private SEXP evaluateExpressionVector(ExpressionVector expressionVector, Environment rho) {
if (expressionVector.length() == 0) {
setInvisibleFlag();
return Null.INSTANCE;
} else {
SEXP result = Null.INSTANCE;
for (SEXP sexp : expressionVector) {
result = evaluate(sexp, rho);
}
return result;
}
}