flexstr 0.11.7

A flexible, simple to use, clone-efficient string type for Rust
Documentation 
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use core::fmt;

use flexstr::{FlexStr, ImmutableBytes, RefCountedMut};

#[allow(dead_code)]
pub fn test_mutation_immutable_bytes_borrowed<S, R>(s: &'static S)
where
    S: ?Sized + ImmutableBytes + fmt::Debug + PartialEq,
    R: RefCountedMut<S>,
{
    let mut flex_str: FlexStr<S, R> = s.into();
    assert!(flex_str.is_borrowed());

    let s2 = flex_str.to_mut_type_fallback();
    assert_eq!(s2, s);

    assert!(flex_str.is_ref_counted());
    let s2 = flex_str.to_mut_type_fallback();
    assert_eq!(s2, s);
}

#[allow(dead_code)]
pub fn test_mutation_immutable_bytes_inlined<S, R>(s: &'static S)
where
    S: ?Sized + ImmutableBytes + fmt::Debug + PartialEq,
    R: RefCountedMut<S>,
{
    let mut flex_str: FlexStr<S, R> = s.into();
    flex_str = flex_str.into_owned();
    assert!(flex_str.is_inlined());

    let s2 = flex_str.to_mut_type_fallback();
    assert_eq!(s2, s);

    assert!(flex_str.is_ref_counted());
    let s2 = flex_str.to_mut_type_fallback();
    assert_eq!(s2, s);
}

#[allow(dead_code)]
pub fn test_mutation_immutable_bytes_ref_counted<S, R>(s: R)
where
    S: ?Sized + ImmutableBytes + fmt::Debug + PartialEq,
    R: RefCountedMut<S> + for<'a> Into<FlexStr<'a, S, R>>,
{
    let mut flex_str: FlexStr<S, R> = s.clone().into();
    assert!(flex_str.is_ref_counted());

    let s2 = flex_str.to_mut_type_fallback();
    assert_eq!(s2, &*s);
}

#[allow(dead_code)]
pub fn test_mutation_immutable_bytes_boxed<S, R>(s: S::Owned)
where
    S: ?Sized + ImmutableBytes + fmt::Debug + PartialEq,
    R: RefCountedMut<S>,
    S::Owned: for<'a> Into<FlexStr<'a, S, R>> + Clone + AsRef<S>,
{
    let mut flex_str: FlexStr<S, R> = s.clone().into();
    assert!(flex_str.is_boxed());

    let s2 = flex_str.to_mut_type_fallback();
    assert_eq!(s2, s.as_ref());
}