Trait serde_validate::Validate

source ·

pub trait Validate: Sized {
    type Error;

    // Required method
    fn validate(&self) -> Result<(), Self::Error>;

    // Provided method
    fn validated(self) -> Result<Self, Self::Error> { ... }
}

Expand description

The Validate trait defines the contract for validating deserialized structs.

Implementors of this trait are required to provide their own validation logic and an associated error type.

§Example

use serde_validate::Validate;

struct MyStruct {
    value: i32,
}

impl Validate for MyStruct {
    type Error = String;

    fn validate(&self) -> Result<(), Self::Error> {
        if self.value < 0 {
            Err("Value must be non-negative".into())
        } else {
            Ok(())
        }
    }
}

let my_struct = MyStruct { value: 10 };
assert!(my_struct.validate().is_ok());