1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
use crate::common::data::Data;
use crate::core::extract::binop;
pub fn add(data: Data) -> Result<Data, String> {
let result = match binop(data) {
(Data::Real(l), Data::Real(r)) => Data::Real(l + r),
(Data::String(l), Data::String(r)) => Data::String(format!("{}{}", l, r)),
_ => Err("Addition between unsupported datatypes")?,
};
return Ok(result);
}
pub fn sub(data: Data) -> Result<Data, String> {
let result = match binop(data) {
(Data::Real(l), Data::Real(r)) => Data::Real(l - r),
_ => Err("Subtraction between unsupported datatypes")?,
};
return Ok(result);
}
pub fn mul(data: Data) -> Result<Data, String> {
let result = match binop(data) {
(Data::Real(l), Data::Real(r)) => Data::Real(l * r),
_ => Err("Multiplication between unsupported datatypes")?,
};
return Ok(result);
}
pub fn div(data: Data) -> Result<Data, String> {
let result = match binop(data) {
(Data::Real(_), Data::Real(n)) if n == 0.0 => Err("Division by zero")?,
(Data::Real(l), Data::Real(r)) => Data::Real(l / r),
_ => Err("Division between unsupported datatypes")?,
};
return Ok(result);
}