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use core::char::DecodeUtf16Error;
use core::fmt::{self, Debug, Display, Formatter};
use core::str::Utf8Error;
use crate::errors::CapacityError;
#[derive(Clone, Debug, PartialEq, Eq)]
pub enum StringError {
Utf8(Utf8Error),
Utf16(DecodeUtf16Error),
NotCharBoundary,
OutOfBounds,
}
#[allow(clippy::match_like_matches_macro)]
impl StringError {
#[inline(always)]
pub const fn is_utf8(&self) -> bool {
match self {
Self::Utf8(_) => true,
_ => false,
}
}
#[inline(always)]
pub const fn is_utf16(&self) -> bool {
match self {
Self::Utf16(_) => true,
_ => false,
}
}
#[inline(always)]
pub const fn is_out_of_bounds(&self) -> bool {
match self {
Self::OutOfBounds => true,
_ => false,
}
}
#[inline(always)]
pub const fn is_not_char_boundary(&self) -> bool {
match self {
Self::NotCharBoundary => true,
_ => false,
}
}
}
impl Display for StringError {
#[inline(always)]
fn fmt(&self, f: &mut Formatter) -> fmt::Result {
match self {
Self::Utf8(err) => write!(f, "{}", err),
Self::Utf16(err) => write!(f, "{}", err),
Self::OutOfBounds => write!(f, "Out Of Bounds"),
Self::NotCharBoundary => write!(f, "Not Char Boundary"),
}
}
}
#[cfg(feature = "std")]
#[doc(cfg(feature = "std"))]
impl std::error::Error for StringError {}
impl const From<DecodeUtf16Error> for StringError {
#[inline(always)]
fn from(err: DecodeUtf16Error) -> Self {
Self::Utf16(err)
}
}
impl const From<Utf8Error> for StringError {
#[inline(always)]
fn from(err: Utf8Error) -> Self {
Self::Utf8(err)
}
}
impl<const N: usize> const From<CapacityError<N>> for StringError {
#[inline(always)]
fn from(_err: CapacityError<N>) -> Self {
Self::OutOfBounds
}
}