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Get the default hasher indirectly 

`DefaultHasher` wasn't stable until 1.13, at which point all the other
hashers were deprecated, so it's not easy for us to name a hasher type
to use for testing.  However, `RandomState` has been stable since 1.7,
and it implements `BuildHasher` that has a `Hasher` associated type.
This commit is contained in:
Josh Stone 2017-05-06 22:23:31 -07:00
parent 71a15212a1
commit 1b895a8632
3 changed files with 9 additions and 6 deletions
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5
bigint/src/lib.rs
View File

@ -120,8 +120,9 @@ use std::hash;
#[cfg(test)]
fn hash<T: hash::Hash>(x: &T) -> u64 {
use std::hash::Hasher;
let mut hasher = std::collections::hash_map::DefaultHasher::new();
use std::hash::{BuildHasher, Hasher};
use std::collections::hash_map::RandomState;
let mut hasher = <RandomState as BuildHasher>::Hasher::new();
x.hash(&mut hasher);
hasher.finish()
}

5
complex/src/lib.rs
View File

@ -765,8 +765,9 @@ impl<T> serde::Deserialize for Complex<T> where
#[cfg(test)]
fn hash<T: hash::Hash>(x: &T) -> u64 {
use std::hash::Hasher;
let mut hasher = std::collections::hash_map::DefaultHasher::new();
use std::hash::{BuildHasher, Hasher};
use std::collections::hash_map::RandomState;
let mut hasher = <RandomState as BuildHasher>::Hasher::new();
x.hash(&mut hasher);
hasher.finish()
}

5
rational/src/lib.rs
View File

@ -670,8 +670,9 @@ impl RatioErrorKind {
#[cfg(test)]
fn hash<T: hash::Hash>(x: &T) -> u64 {
use std::hash::Hasher;
let mut hasher = std::collections::hash_map::DefaultHasher::new();
use std::hash::{BuildHasher, Hasher};
use std::collections::hash_map::RandomState;
let mut hasher = <RandomState as BuildHasher>::Hasher::new();
x.hash(&mut hasher);
hasher.finish()
}