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// src/traits/as_i32.rs : `AsI32`
/// Trait defining instance method `as_i32() : i32` that provides a
/// cost-free conversion into `i32`.
///
/// It is expected that the implementing type "is-a" `i32` in a direct
/// manner as well as in a logical manner.
///
/// # Additional Implementations on Foreign Types
///
/// ## Built-in Types
///
/// If the feature `"implement-AsI32-for-built_ins"`
/// is defined (as it is by `"default"`), then this is also implemented
/// for the following type(s):
/// - [`i32`];
pub trait AsI32 {
fn as_i32(&self) -> i32;
}
#[cfg(feature = "implement-AsI32-for-built_ins")]
mod impl_for_built_ins {
#![allow(non_snake_case)]
impl super::AsI32 for i32 {
#[inline]
fn as_i32(&self) -> i32 {
*self
}
}
}
#[cfg(test)]
mod tests {
#![allow(non_snake_case)]
use super::AsI32;
#[cfg(feature = "implement-AsI32-for-built_ins")]
#[test]
fn TEST_i32_AsI32() {
{
let v : i32 = 12345678;
let actual = v.as_i32();
assert_eq!(12345678, actual);
}
{
let v : &i32 = &12345678;
let actual = v.as_i32();
assert_eq!(12345678, actual);
}
}
}
// ///////////////////////////// end of file //////////////////////////// //