Dedicated tracking issue for UnicodeVersion and UNICODE_VERSION.

src/libcore/char/mod.rs

@@ -46,9 +46,9 @@ pub use self::convert::CharTryFromError;
 pub use self::decode::{decode_utf16, DecodeUtf16, DecodeUtf16Error};
 
 // unstable re-exports
-#[unstable(feature = "unicode", issue = "27783")]
-pub use unicode::tables::{UNICODE_VERSION};
-#[unstable(feature = "unicode", issue = "27783")]
+#[unstable(feature = "unicode_version", issue = "49726")]
+pub use unicode::tables::UNICODE_VERSION;
+#[unstable(feature = "unicode_version", issue = "49726")]
 pub use unicode::version::UnicodeVersion;
 #[unstable(feature = "decode_utf8", issue = "33906")]
 pub use self::decode::{decode_utf8, DecodeUtf8, InvalidSequence};

src/libcore/unicode/tables.rs

@@ -17,6 +17,7 @@ use unicode::bool_trie::{BoolTrie, SmallBoolTrie};
 
 /// The version of [Unicode](http://www.unicode.org/) that the Unicode parts of
 /// `char` and `str` methods are based on.
+#[unstable(feature = "unicode_version", issue = "49726")]
 pub const UNICODE_VERSION: UnicodeVersion = UnicodeVersion {
     major: 10,
     minor: 0,

src/libcore/unicode/unicode.py

@@ -471,6 +471,7 @@ if __name__ == "__main__":
         rf.write("""
 /// The version of [Unicode](http://www.unicode.org/) that the Unicode parts of
 /// `char` and `str` methods are based on.
+#[unstable(feature = "unicode_version", issue = "49726")]
 pub const UNICODE_VERSION: UnicodeVersion = UnicodeVersion {
     major: %s,
     minor: %s,

src/libcore/unicode/version.rs

@@ -12,6 +12,7 @@
 ///
 /// See also: <http://www.unicode.org/versions/>
 #[derive(Clone, Copy, Debug, Eq, Ord, PartialEq, PartialOrd)]
+#[unstable(feature = "unicode_version", issue = "49726")]
 pub struct UnicodeVersion {
     /// Major version.
     pub major: u32,

src/test/run-pass/char_unicode.rs

@@ -8,9 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-
-#![feature(unicode)]
-
+#![feature(unicode_version)]
 
 /// Tests access to the internal Unicode Version type and value.
 pub fn main() {