Trait serde_valid::validation::ValidateMaxItems

pub trait ValidateMaxItems {
    // Required method
    fn validate_max_items(&self, max_items: usize) -> Result<(), MaxItemsError>;
}

Max length validation of the array items.

See https://json-schema.org/understanding-json-schema/reference/array.html#length

use serde_json::json;
use serde_valid::{Validate, ValidateMaxItems};

struct MyType(Vec<i32>);

impl ValidateMaxItems for MyType {
    fn validate_max_items(
        &self,
        max_items: usize,
    ) -> Result<(), serde_valid::MaxItemsError> {
        self.0.validate_max_items(max_items)
    }
}

#[derive(Validate)]
struct TestStruct {
    #[validate(max_items = 2)]
    val: MyType,
}

let s = TestStruct {
    val: MyType(vec![1, 2, 3]),
};

assert_eq!(
    s.validate().unwrap_err().to_string(),
    json!({
        "errors": [],
        "properties": {
            "val": {
                "errors": ["The length of the items must be `<= 2`."]
            }
        }
    })
    .to_string()
);

Required Methods

fn validate_max_items(&self, max_items: usize) -> Result<(), MaxItemsError>

Implementations on Foreign Types

impl<T> ValidateMaxItems for Option<T>

where T: ValidateMaxItems,

fn validate_max_items(&self, limit: usize) -> Result<(), MaxItemsError>

impl<T> ValidateMaxItems for Vec<T>

fn validate_max_items(&self, max_items: usize) -> Result<(), MaxItemsError>

impl<T, const N: usize> ValidateMaxItems for [T; N]

fn validate_max_items(&self, max_items: usize) -> Result<(), MaxItemsError>

Implementors