logic_mesh/blocks/misc/
parse_number.rs

1// Copyright (c) 2022-2023, Radu Racariu.
2
3use uuid::Uuid;
4
5use crate::base::{
6    block::{Block, BlockDesc, BlockProps, BlockState},
7    input::{input_reader::InputReader, Input, InputProps},
8    output::Output,
9};
10
11use libhaystack::{
12    encoding::zinc,
13    val::{kind::HaystackKind, Value},
14};
15
16use crate::{blocks::InputImpl, blocks::OutputImpl};
17
18/// Outputs the parsed numeric value of the input.
19#[block]
20#[derive(BlockProps, Debug)]
21#[category = "misc"]
22pub struct ParseNumber {
23    #[input(name = "in", kind = "Str")]
24    pub input: InputImpl,
25    #[output(kind = "Number")]
26    pub out: OutputImpl,
27}
28
29impl Block for ParseNumber {
30    async fn execute(&mut self) {
31        self.read_inputs_until_ready().await;
32
33        if let Some(Value::Str(input)) = self.input.get_value() {
34            let parsed = input.value.parse::<f64>();
35            if let Ok(parsed) = parsed {
36                self.out.set(parsed.into());
37            } else if let Ok(Value::Number(number)) = zinc::decode::from_str(&input.value) {
38                self.out.set(number.into());
39            }
40        }
41    }
42}
43
44#[cfg(test)]
45mod test {
46
47    use libhaystack::val::Value;
48
49    use crate::{
50        base::block::test_utils::write_block_inputs, base::block::Block, blocks::misc::ParseNumber,
51    };
52
53    #[tokio::test]
54    async fn test_parse_number() {
55        let mut block = ParseNumber::new();
56
57        write_block_inputs(&mut [(&mut block.input, ("33.5").into())]).await;
58
59        block.execute().await;
60        assert_eq!(block.out.value, 33.5.into());
61    }
62
63    #[tokio::test]
64    async fn test_parse_number_unit() {
65        let mut block = ParseNumber::new();
66
67        write_block_inputs(&mut [(&mut block.input, ("33.5F").into())]).await;
68
69        block.execute().await;
70        assert_eq!(block.out.value, Value::make_number_unit(33.5, "F".into()));
71    }
72}
logic_mesh/blocks/misc/parse_number.rs

logic_mesh/blocks/misc/
parse_number.rs
