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Make noun::Error an instance of std::error::Error

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This commit is contained in:
Edward Amsden 2024-08-08 10:20:56 -05:00
parent f04dacdac3
commit 9841143d0c
1 changed files with 16 additions and 0 deletions
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16
rust/ares/src/noun.rs
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@ -4,6 +4,7 @@ use bitvec::prelude::{BitSlice, Lsb0};
use either::{Either, Left, Right};
use ibig::{Stack, UBig};
use intmap::IntMap;
use std::error;
use std::fmt;
use std::ptr;
use std::slice::{from_raw_parts, from_raw_parts_mut};
@ -172,6 +173,21 @@ pub enum Error {
NotRepresentable,
}
impl error::Error for Error {}
impl std::fmt::Display for Error {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> fmt::Result {
match self {
Error::NotAllocated => f.write_str("not an allocated noun"),
Error::NotAtom => f.write_str("not an atom"),
Error::NotCell => f.write_str("not a cell"),
Error::NotDirectAtom => f.write_str("not a direct atom"),
Error::NotIndirectAtom => f.write_str("not an indirect atom"),
Error::NotRepresentable => f.write_str("unrepresentable value"),
}
}
}
impl From<Error> for () {
fn from(_: Error) -> Self {}
}