hide draft versions behind the unstable cfg

.github/workflows/ci.yml

@@ -70,13 +70,34 @@ jobs:
     - name: All features
       run: cargo hack test --lib --all-features
 
+  stable:
+    name: "Tests / Stable / OS: ${{ matrix.os }}"
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os:
+        - ubuntu-20.04
+
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+
+    - name: Install Rust toolchain
+      uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: stable
+        override: true
+
+    - name: All features
+      run: cargo test --all-features
+
   msrv:
     name: "Tests / MSRV / OS: ${{ matrix.os }}"
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
         os:
-        - macos-10.15
         - ubuntu-20.04
 
     steps:
@@ -91,7 +112,7 @@ jobs:
         override: true
 
     - name: Version features
-      run: cargo test --features "$VERSION_FEATURES $DEP_FEATURES"
+      run: cargo test --features "$VERSION_FEATURES"
 
   wasm:
     name: Tests / WebAssembly

src/builder.rs

@@ -42,28 +42,6 @@ use crate::{error::*, timestamp, Bytes, Uuid, Variant, Version};
 /// assert_eq!(Some(Version::Random), uuid.get_version());
 /// assert_eq!(Variant::RFC4122, uuid.get_variant());
 /// ```
-///
-/// Creating a version 7 UUID from the current system time and externally generated random bytes:
-///
-/// ```
-/// # use std::convert::TryInto;
-/// use std::time::{Duration, SystemTime};
-/// # fn main() -> Result<(), Box<dyn std::error::Error>> {
-/// # use uuid::{Builder, Uuid, Variant, Version, Timestamp, NoContext};
-/// # let rng = || [
-/// #     70, 235, 208, 238, 14, 109, 67, 201, 185, 13
-/// # ];
-/// let ts = SystemTime::now().duration_since(SystemTime::UNIX_EPOCH)?;
-///
-/// let random_bytes = rng();
-///
-/// let uuid = Builder::from_unix_timestamp_millis(ts.as_millis().try_into()?, &random_bytes).into_uuid();
-///
-/// assert_eq!(Some(Version::SortRand), uuid.get_version());
-/// assert_eq!(Variant::RFC4122, uuid.get_variant());
-/// # Ok(())
-/// # }
-/// ```
 #[allow(missing_copy_implementations)]
 #[derive(Debug)]
 pub struct Builder(Uuid);
@@ -117,6 +95,7 @@ impl Uuid {
     ///     uuid.hyphenated().to_string(),
     /// );
     /// ```
+    #[cfg(uuid_unstable)]
     pub const fn max() -> Self {
         Uuid::from_bytes([0xFF; 16])
     }
@@ -619,6 +598,7 @@ impl Builder {
     /// Creates a `Builder` for a version 6 UUID using the supplied timestamp and node ID.
     ///
     /// This method will encode the ticks, counter, and node ID in a sortable UUID.
+    #[cfg(uuid_unstable)]
     pub const fn from_sorted_rfc4122_timestamp(
         ticks: u64,
         counter: u16,
@@ -656,6 +636,7 @@ impl Builder {
     /// # Ok(())
     /// # }
     /// ```
+    #[cfg(uuid_unstable)]
     pub const fn from_unix_timestamp_millis(millis: u64, random_bytes: &[u8; 10]) -> Self {
         Builder(timestamp::encode_unix_timestamp_millis(
             millis,
@@ -667,6 +648,7 @@ impl Builder {
     ///
     /// This method won't interpret the given bytes in any way, except to set the appropriate
     /// bits for the UUID version and variant.
+    #[cfg(uuid_unstable)]
     pub const fn from_custom_bytes(custom_bytes: Bytes) -> Self {
         Builder::from_bytes(custom_bytes)
             .with_variant(Variant::RFC4122)

src/lib.rs

@@ -80,9 +80,8 @@
 //! * `v3` - Version 3 UUIDs based on the MD5 hash of some data.
 //! * `v4` - Version 4 UUIDs with random data.
 //! * `v5` - Version 5 UUIDs based on the SHA1 hash of some data.
-//! * `v6` - Version 6 UUIDs using a timestamp and monotonic counter.
-//! * `v7` - Version 7 UUIDs using a Unix timestamp.
-//! * `v8` - Version 8 UUIDs using user-defined data.
+//!
+//! Versions that are in draft are also supported. See the _unstable features_ section for details.
 //!
 //! This library also includes a [`Builder`] type that can be used to help construct UUIDs of any
 //! version without any additional dependencies or features. It's a lower-level API than [`Uuid`]
@@ -115,6 +114,9 @@
 //! Some features are unstable. They may be incomplete or depend on other
 //! unstable libraries. These include:
 //!
+//! * `v6` - Version 6 UUIDs using a timestamp and monotonic counter.
+//! * `v7` - Version 7 UUIDs using a Unix timestamp.
+//! * `v8` - Version 8 UUIDs using user-defined data.
 //! * `zerocopy` - adds support for zero-copy deserialization using the
 //!   `zerocopy` library.
 //!
@@ -246,11 +248,11 @@ mod v3;
 mod v4;
 #[cfg(feature = "v5")]
 mod v5;
-#[cfg(feature = "v6")]
+#[cfg(all(uuid_unstable, feature = "v6"))]
 mod v6;
-#[cfg(feature = "v7")]
+#[cfg(all(uuid_unstable, feature = "v7"))]
 mod v7;
-#[cfg(feature = "v8")]
+#[cfg(all(uuid_unstable, feature = "v8"))]
 mod v8;
 
 #[cfg(feature = "md5")]
@@ -293,22 +295,26 @@ pub enum Version {
     /// The "nil" (all zeros) UUID.
     Nil = 0u8,
     /// Version 1: Timestamp and node ID.
-    Mac,
+    Mac = 1,
     /// Version 2: DCE Security.
-    Dce,
+    Dce = 2,
     /// Version 3: MD5 hash.
-    Md5,
+    Md5 = 3,
     /// Version 4: Random.
-    Random,
+    Random = 4,
     /// Version 5: SHA-1 hash.
-    Sha1,
+    Sha1 = 5,
     /// Version 6: Sortable Timestamp and node ID.
-    SortMac,
+    #[cfg(uuid_unstable)]
+    SortMac = 6,
     /// Version 7: Timestamp and random.
-    SortRand,
+    #[cfg(uuid_unstable)]
+    SortRand = 7,
     /// Version 8: Custom.
-    Custom,
+    #[cfg(uuid_unstable)]
+    Custom = 8,
     /// The "max" (all ones) UUID.
+    #[cfg(uuid_unstable)]
     Max = 0xff,
 }
 
@@ -551,9 +557,13 @@ impl Uuid {
             3 => Some(Version::Md5),
             4 => Some(Version::Random),
             5 => Some(Version::Sha1),
+            #[cfg(uuid_unstable)]
             6 => Some(Version::SortMac),
+            #[cfg(uuid_unstable)]
             7 => Some(Version::SortRand),
+            #[cfg(uuid_unstable)]
             8 => Some(Version::Custom),
+            #[cfg(uuid_unstable)]
             0xf => Some(Version::Max),
             _ => None,
         }
@@ -851,6 +861,7 @@ impl Uuid {
     }
 
     /// Tests if the UUID is max (all ones).
+    #[cfg(uuid_unstable)]
     pub const fn is_max(&self) -> bool {
         self.as_u128() == u128::MAX
     }
@@ -910,11 +921,13 @@ impl Uuid {
 
                 Some(Timestamp::from_rfc4122(ticks, counter))
             }
+            #[cfg(uuid_unstable)]
             Some(Version::SortMac) => {
                 let (ticks, counter) = timestamp::decode_sorted_rfc4122_timestamp(self);
 
                 Some(Timestamp::from_rfc4122(ticks, counter))
             }
+            #[cfg(uuid_unstable)]
             Some(Version::SortRand) => {
                 let millis = timestamp::decode_unix_timestamp_millis(self);
 
@@ -1100,6 +1113,7 @@ mod tests {
     }
 
     #[test]
+    #[cfg(uuid_unstable)]
     #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)]
     fn test_max() {
         let max = Uuid::max();

src/timestamp.rs

@@ -190,6 +190,7 @@ pub(crate) const fn decode_rfc4122_timestamp(uuid: &Uuid) -> (u64, u16) {
     (ticks, counter)
 }
 
+#[cfg(uuid_unstable)]
 pub(crate) const fn encode_sorted_rfc4122_timestamp(
     ticks: u64,
     counter: u16,
@@ -213,6 +214,7 @@ pub(crate) const fn encode_sorted_rfc4122_timestamp(
     Uuid::from_fields(time_high, time_mid, time_low_and_version, &d4)
 }
 
+#[cfg(uuid_unstable)]
 pub(crate) const fn decode_sorted_rfc4122_timestamp(uuid: &Uuid) -> (u64, u16) {
     let bytes = uuid.as_bytes();
 
@@ -230,6 +232,7 @@ pub(crate) const fn decode_sorted_rfc4122_timestamp(uuid: &Uuid) -> (u64, u16) {
     (ticks, counter)
 }
 
+#[cfg(uuid_unstable)]
 pub(crate) const fn encode_unix_timestamp_millis(millis: u64, random_bytes: &[u8; 10]) -> Uuid {
     let millis_high = ((millis >> 16) & 0xFFFF_FFFF) as u32;
     let millis_low = (millis & 0xFFFF) as u16;
@@ -251,6 +254,7 @@ pub(crate) const fn encode_unix_timestamp_millis(millis: u64, random_bytes: &[u8
     Uuid::from_fields(millis_high, millis_low, random_and_version, &d4)
 }
 
+#[cfg(uuid_unstable)]
 pub(crate) const fn decode_unix_timestamp_millis(uuid: &Uuid) -> u64 {
     let bytes = uuid.as_bytes();