tanzim_validate/
uuid.rs

1use crate::error::{Error, ErrorKind};
2use crate::{Meta, Validator};
3use tanzim_value::{Value, ValueType};
4
5/// (`uuid` feature) Accepts a UUID string in the canonical hyphenated form.
6#[derive(Debug, Clone, Default)]
7pub struct Uuid {
8    meta: Meta,
9}
10
11impl Uuid {
12    pub fn new() -> Self {
13        Self {
14            meta: Meta::default(),
15        }
16    }
17
18    /// Attach human-facing metadata (name, description, examples, default, output conversion).
19    pub fn with_meta(mut self, meta: Meta) -> Self {
20        self.meta = meta;
21        self
22    }
23}
24
25crate::impl_meta_methods!(Uuid);
26
27impl Validator for Uuid {
28    fn meta(&self) -> &Meta {
29        &self.meta
30    }
31
32    fn meta_mut(&mut self) -> &mut Meta {
33        &mut self.meta
34    }
35
36    fn check(&self, value: &mut Value) -> Result<(), Error> {
37        let text = match value {
38            Value::String(text) => text,
39            other => {
40                return Err(Error::new(ErrorKind::Type {
41                    expected: ValueType::String,
42                    found: other.type_name(),
43                }));
44            }
45        };
46        match uuid::Uuid::parse_str(text) {
47            Ok(_) => Ok(()),
48            Err(_) => Err(Error::new(ErrorKind::Format { expected: "uuid" })),
49        }
50    }
51}
52
53#[cfg(test)]
54mod tests {
55    use super::*;
56
57    #[test]
58    fn accepts_and_rejects() {
59        assert!(
60            Uuid::new()
61                .validate(&mut Value::String(
62                    "67e55044-10b1-426f-9247-bb680e5fe0c8".into()
63                ))
64                .is_ok()
65        );
66        assert!(
67            Uuid::new()
68                .validate(&mut Value::String("nope".into()))
69                .is_err()
70        );
71    }
72}
tanzim_validate/uuid.rs

tanzim_validate/
uuid.rs
