ialloc 0.0.0-2025-05-02

Allocator interface traits
Documentation 
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#![cfg(global_oom_handling)]

use crate::boxed::ABox;
use crate::meta::*;
use crate::fat::*;
use crate::vec::AVec;

use core::ffi::CStr;



impl<T: Copy, A: Alloc + Free + Default + ZstSupported                  > From<&[T] > for ABox<[T],  A> { fn from(value: &[T] ) -> Self { Self::try_from_slice(value).expect("out of memory") } }
impl<         A: Alloc + Free + Default + ZstSupported                  > From<&CStr> for ABox<CStr, A> { fn from(value: &CStr) -> Self { Self::try_from_cstr (value).expect("out of memory") } }
impl<         A: Alloc + Free + Default + ZstSupported                  > From<&str > for ABox<str,  A> { fn from(value: &str ) -> Self { Self::try_from_str  (value).expect("out of memory") } }
impl<T,       A: Alloc + Free + Default + ZstSupported, const N : usize > From<[T;N]> for ABox<[T],  A> { fn from(value: [T;N]) -> Self { Self::try_from_array(value).expect("out of memory") } }

impl<T, A: Alloc + Free + Default   > From   <T             > for ABox<T,   A> { fn from(value: T)          -> Self { Self::new(value) } }
impl<T, A: Realloc                  > From   <AVec<T, A>    > for ABox<[T], A> { fn from(value: AVec<T, A>) -> Self { value.into_boxed_slice() } }
// TODO: impl<T, A: Free, const N: usize>                     TryFrom<ABox<[T], A>    > for ABox<[T; N], A>                           !Alloc
// TODO: impl<T, A: Free, const N: usize>                     TryFrom<AVec<T, A>      > for ABox<[T; N], A>                           Shrink to fit

#[cfg(feature = "alloc")] mod alloc {
    use crate::allocator::alloc::Global;
    use super::*;

    use ::alloc::borrow::Cow;
    use ::alloc::boxed::Box;
    use ::alloc::string::String;
    use ::alloc::vec::Vec;

    impl<T: Copy,  A: Free + From<Global>> From<Cow<'_, [T]  >> for ABox<[T],  A> { fn from(value: Cow<'_, [T]  >) -> Self { Self::from(Box::<[T]  >::from(value)) } }
    impl<          A: Free + From<Global>> From<Cow<'_, CStr >> for ABox<CStr, A> { fn from(value: Cow<'_, CStr >) -> Self { Self::from(Box::<CStr >::from(value)) } }
    impl<          A: Free + From<Global>> From<Cow<'_, str  >> for ABox<str,  A> { fn from(value: Cow<'_, str  >) -> Self { Self::from(Box::<str  >::from(value)) } }
    impl<          A: Free + From<Global>> From<String        > for ABox<str,  A> { fn from(value: String        ) -> Self { Self::from(Box::<str  >::from(value)) } }
    impl<T,        A: Free + From<Global>> From<Vec<T>        > for ABox<[T],  A> { fn from(value: Vec<T>        ) -> Self { Self::from(Box::<[T]  >::from(value)) } }

    // TODO: impl<T, A: Free + From<Global>, const N: usize> impl TryFrom<Box<[T]>    > for ABox<[T; N], A>                           !Alloc
    // TODO: impl<T, A: Free + From<Global>, const N: usize> impl TryFrom<Vec<T>      > for ABox<[T; N], A>                           Shrink to fit
}

#[cfg(feature = "std")] mod std {
    use crate::allocator::alloc::Global;
    use super::*;

    use ::std::borrow::Cow;
    use ::std::boxed::Box;
    use ::std::ffi::{OsStr, OsString};
    use ::std::path::{Path, PathBuf};

    impl<A: Free + From<Global>> From<&OsStr> for ABox<OsStr, A> { fn from(value: &OsStr) -> Self { Self::from(Box::<OsStr>::from(value)) } }
    impl<A: Free + From<Global>> From<&Path>  for ABox<Path,  A> { fn from(value: &Path ) -> Self { Self::from(Box::<Path >::from(value)) } }

    // TODO: impl From<&str> for ABox<dyn Error + ..., A>

    impl<A: Free + From<Global>> From<Cow<'_, OsStr>> for ABox<OsStr, A> { fn from(value: Cow<'_, OsStr>) -> Self { Self::from(Box::<OsStr>::from(value)) } }
    impl<A: Free + From<Global>> From<Cow<'_, Path >> for ABox<Path,  A> { fn from(value: Cow<'_, Path >) -> Self { Self::from(Box::<Path >::from(value)) } }

    // TODO: impl From<Cow<'_, str>     > for ABox<dyn Error + ..., A>
    // TODO: impl From<impl Error       > for ABox<dyn Error + ..., A>

    impl<A: Free + From<Global>> From<OsString> for ABox<OsStr, A> { fn from(value: OsString) -> Self { Self::from(Box::<OsStr>::from(value)) } }
    impl<A: Free + From<Global>> From<PathBuf > for ABox<Path,  A> { fn from(value: PathBuf ) -> Self { Self::from(Box::<Path >::from(value)) } }
}