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fix(tvix/value): implement PartialOrd/PartialEq for strings

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Instead of comparing the enum variants (which does not yield useful
behaviour), compare &str representations of the string instead.

Change-Id: I5e94b5f6c91b4561e1bc7c36d586f3d23c243764
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6112
Tested-by: BuildkiteCI
Reviewed-by: eta <tvl@eta.st>
This commit is contained in:
Vincent Ambo 2022-08-10 18:00:04 +03:00 • committed by tazjin
parent 6dc9ca5723
commit a2b4b4a485
1 changed files with 13 additions and 1 deletions
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14
tvix/eval/src/value/string.rs
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@ -3,7 +3,7 @@ use std::fmt::Display;
/// This module implements Nix language strings and their different /// This module implements Nix language strings and their different
/// backing implementations. /// backing implementations.
#[derive(Clone, Debug, Hash, PartialEq, Eq, PartialOrd, Ord)] #[derive(Clone, Debug, Hash, Eq, Ord)]
pub enum NixString { pub enum NixString {
Static(&'static str), Static(&'static str),
Heap(String), Heap(String),
@ -18,6 +18,18 @@ impl Display for NixString {
} }
} }
impl PartialEq for NixString {
fn eq(&self, other: &Self) -> bool {
self.as_str() == other.as_str()
}
}
impl PartialOrd for NixString {
fn partial_cmp(&self, other: &Self) -> Option<std::cmp::Ordering> {
self.as_str().partial_cmp(other.as_str())
}
}
impl From<&'static str> for NixString { impl From<&'static str> for NixString {
fn from(s: &'static str) -> Self { fn from(s: &'static str) -> Self {
NixString::Static(s) NixString::Static(s)