Function serde_aux::field_attributes::bool_true

pub fn bool_true() -> bool

Allows a bool field to be defaulted to true, rather than the normal default of false. Useful for fields where the default value should be true`.

Example:

use serde_aux::prelude::*;

#[derive(serde::Deserialize, Debug)]
struct MyStruct {
    #[serde(default)]
    default_false: bool,
    #[serde(default = "bool_true")]
    default_true: bool,
}

let s = r#" { } "#;
let a: MyStruct = serde_json::from_str(s).unwrap();
assert!(!a.default_false);
assert!(a.default_true);