1 files changed, 162 insertions, 0 deletions
diff --git a/third_party/rust/uuid/src/v5.rs b/third_party/rust/uuid/src/v5.rs
new file mode 100644
index 0000000000..c3dd44795d
--- /dev/null
+++ b/third_party/rust/uuid/src/v5.rs
@@ -0,0 +1,162 @@
+use crate::Uuid;
+
+impl Uuid {
+    /// Creates a UUID using a name from a namespace, based on the SHA-1 hash.
+    ///
+    /// A number of namespaces are available as constants in this crate:
+    ///
+    /// * [`NAMESPACE_DNS`]
+    /// * [`NAMESPACE_OID`]
+    /// * [`NAMESPACE_URL`]
+    /// * [`NAMESPACE_X500`]
+    ///
+    /// Note that usage of this method requires the `v5` feature of this crate
+    /// to be enabled.
+    ///
+    /// # Examples
+    ///
+    /// Generating a SHA1 DNS UUID for `rust-lang.org`:
+    ///
+    /// ```
+    /// # use uuid::{Uuid, Version};
+    /// let uuid = Uuid::new_v5(&Uuid::NAMESPACE_DNS, b"rust-lang.org");
+    ///
+    /// assert_eq!(Some(Version::Sha1), uuid.get_version());
+    /// ```
+    ///
+    /// # References
+    ///
+    /// * [Version 3 and 5 UUIDs in RFC4122](https://www.rfc-editor.org/rfc/rfc4122#section-4.3)
+    ///
+    /// [`NAMESPACE_DNS`]: struct.Uuid.html#associatedconst.NAMESPACE_DNS
+    /// [`NAMESPACE_OID`]: struct.Uuid.html#associatedconst.NAMESPACE_OID
+    /// [`NAMESPACE_URL`]: struct.Uuid.html#associatedconst.NAMESPACE_URL
+    /// [`NAMESPACE_X500`]: struct.Uuid.html#associatedconst.NAMESPACE_X500
+    pub fn new_v5(namespace: &Uuid, name: &[u8]) -> Uuid {
+        crate::Builder::from_sha1_bytes(crate::sha1::hash(namespace.as_bytes(), name)).into_uuid()
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[cfg(target_arch = "wasm32")]
+    use wasm_bindgen_test::*;
+
+    use crate::{std::string::ToString, Variant, Version};
+
+    static FIXTURE: &'static [(&'static Uuid, &'static str, &'static str)] = &[
+        (
+            &Uuid::NAMESPACE_DNS,
+            "example.org",
+            "aad03681-8b63-5304-89e0-8ca8f49461b5",
+        ),
+        (
+            &Uuid::NAMESPACE_DNS,
+            "rust-lang.org",
+            "c66bbb60-d62e-5f17-a399-3a0bd237c503",
+        ),
+        (
+            &Uuid::NAMESPACE_DNS,
+            "42",
+            "7c411b5e-9d3f-50b5-9c28-62096e41c4ed",
+        ),
+        (
+            &Uuid::NAMESPACE_DNS,
+            "lorem ipsum",
+            "97886a05-8a68-5743-ad55-56ab2d61cf7b",
+        ),
+        (
+            &Uuid::NAMESPACE_URL,
+            "example.org",
+            "54a35416-963c-5dd6-a1e2-5ab7bb5bafc7",
+        ),
+        (
+            &Uuid::NAMESPACE_URL,
+            "rust-lang.org",
+            "c48d927f-4122-5413-968c-598b1780e749",
+        ),
+        (
+            &Uuid::NAMESPACE_URL,
+            "42",
+            "5c2b23de-4bad-58ee-a4b3-f22f3b9cfd7d",
+        ),
+        (
+            &Uuid::NAMESPACE_URL,
+            "lorem ipsum",
+            "15c67689-4b85-5253-86b4-49fbb138569f",
+        ),
+        (
+            &Uuid::NAMESPACE_OID,
+            "example.org",
+            "34784df9-b065-5094-92c7-00bb3da97a30",
+        ),
+        (
+            &Uuid::NAMESPACE_OID,
+            "rust-lang.org",
+            "8ef61ecb-977a-5844-ab0f-c25ef9b8d5d6",
+        ),
+        (
+            &Uuid::NAMESPACE_OID,
+            "42",
+            "ba293c61-ad33-57b9-9671-f3319f57d789",
+        ),
+        (
+            &Uuid::NAMESPACE_OID,
+            "lorem ipsum",
+            "6485290d-f79e-5380-9e64-cb4312c7b4a6",
+        ),
+        (
+            &Uuid::NAMESPACE_X500,
+            "example.org",
+            "e3635e86-f82b-5bbc-a54a-da97923e5c76",
+        ),
+        (
+            &Uuid::NAMESPACE_X500,
+            "rust-lang.org",
+            "26c9c3e9-49b7-56da-8b9f-a0fb916a71a3",
+        ),
+        (
+            &Uuid::NAMESPACE_X500,
+            "42",
+            "e4b88014-47c6-5fe0-a195-13710e5f6e27",
+        ),
+        (
+            &Uuid::NAMESPACE_X500,
+            "lorem ipsum",
+            "b11f79a5-1e6d-57ce-a4b5-ba8531ea03d0",
+        ),
+    ];
+
+    #[test]
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)]
+    fn test_get_version() {
+        let uuid = Uuid::new_v5(&Uuid::NAMESPACE_DNS, "rust-lang.org".as_bytes());
+
+        assert_eq!(uuid.get_version(), Some(Version::Sha1));
+        assert_eq!(uuid.get_version_num(), 5);
+    }
+
+    #[test]
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)]
+    fn test_hyphenated() {
+        for &(ref ns, ref name, ref expected) in FIXTURE {
+            let uuid = Uuid::new_v5(*ns, name.as_bytes());
+
+            assert_eq!(uuid.hyphenated().to_string(), *expected)
+        }
+    }
+
+    #[test]
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)]
+    fn test_new() {
+        for &(ref ns, ref name, ref u) in FIXTURE {
+            let uuid = Uuid::new_v5(*ns, name.as_bytes());
+
+            assert_eq!(uuid.get_version(), Some(Version::Sha1));
+            assert_eq!(uuid.get_variant(), Variant::RFC4122);
+            assert_eq!(Ok(uuid), u.parse());
+        }
+    }
+}