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| author | Erick Tryzelaar <erick.tryzelaar@gmail.com> | 2014-02-21 21:33:23 -0800 |
|---|---|---|
| committer | Erick Tryzelaar <erick.tryzelaar@gmail.com> | 2014-02-21 21:33:23 -0800 |
| commit | d223dd1e57cc412aa2eff28e6604f86b9f013083 (patch) | |
| tree | aa8d3f01f77b0a74c024d1632df29d5a95f4724e /src/libsyntax/ext/deriving/mod.rs | |
| parent | 0135b521ad38615e9a07aac54d9c22627af57ca4 (diff) | |
| download | rust-d223dd1e57cc412aa2eff28e6604f86b9f013083.tar.gz rust-d223dd1e57cc412aa2eff28e6604f86b9f013083.zip | |
std: rewrite Hash to make it more generic
This patch merges IterBytes and Hash traits, which clears up the confusion of using `#[deriving(IterBytes)]` to support hashing. Instead, it now is much easier to use the new `#[deriving(Hash)]` for making a type hashable with a stream hash. Furthermore, it supports custom non-stream-based hashers, such as if a value's hash was cached in a database. This does not yet replace the old IterBytes-hash with this new version.
Diffstat (limited to 'src/libsyntax/ext/deriving/mod.rs')
| -rw-r--r-- | src/libsyntax/ext/deriving/mod.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/libsyntax/ext/deriving/mod.rs b/src/libsyntax/ext/deriving/mod.rs index 7c686e5cd67..31ee99fbd26 100644 --- a/src/libsyntax/ext/deriving/mod.rs +++ b/src/libsyntax/ext/deriving/mod.rs @@ -26,6 +26,7 @@ pub mod clone; pub mod iter_bytes; pub mod encodable; pub mod decodable; +pub mod hash; pub mod rand; pub mod to_str; pub mod show; @@ -74,6 +75,7 @@ pub fn expand_meta_deriving(cx: &mut ExtCtxt, "DeepClone" => expand!(clone::expand_deriving_deep_clone), "IterBytes" => expand!(iter_bytes::expand_deriving_iter_bytes), + "Hash" => expand!(hash::expand_deriving_hash), "Encodable" => expand!(encodable::expand_deriving_encodable), "Decodable" => expand!(decodable::expand_deriving_decodable), |