@Override
public Value binary(Term.BinaryOperator operator, Term left, Term right) {
Value leftValue = left.accept(this);
Value rightValue = right.accept(this);
double l = leftValue.accept(extractNumber);
double r = rightValue.accept(extractNumber);
switch (operator) {
case add:
return values.number(l + r);
case sub:
return values.number(l - r);
case mult:
return values.number(l * r);
case div:
return values.number(l / r);
default:
throw new RuntimeException("Unknown operator: " + operator);
}
}
@Override
public Value number(double value) {
return values.number(value);
}
