Reexport from core::unicode::char in core::char rather than vice versa

src/liballoc/string.rs

@@ -56,6 +56,7 @@
 
 #![stable(feature = "rust1", since = "1.0.0")]
 
+use core::char::{decode_utf16, REPLACEMENT_CHARACTER};
 use core::fmt;
 use core::hash;
 use core::iter::{FromIterator, FusedIterator};
@@ -64,7 +65,6 @@ use core::ops::{self, Add, AddAssign, Index, IndexMut, RangeBounds};
 use core::ptr;
 use core::str::pattern::Pattern;
 use core::str::lossy;
-use core::unicode::char::{decode_utf16, REPLACEMENT_CHARACTER};
 
 use borrow::{Cow, ToOwned};
 use str::{self, from_boxed_utf8_unchecked, FromStr, Utf8Error, Chars};

src/liballoc/tests/string.rs

@@ -132,7 +132,7 @@ fn test_from_utf16() {
         let s_as_utf16 = s.encode_utf16().collect::<Vec<u16>>();
         let u_as_string = String::from_utf16(&u).unwrap();
 
-        assert!(::core::unicode::char::decode_utf16(u.iter().cloned()).all(|r| r.is_ok()));
+        assert!(::core::char::decode_utf16(u.iter().cloned()).all(|r| r.is_ok()));
         assert_eq!(s_as_utf16, u);
 
         assert_eq!(u_as_string, s);

src/libcore/char/mod.rs

@@ -15,6 +15,18 @@
 #![allow(non_snake_case)]
 #![stable(feature = "core_char", since = "1.2.0")]
 
+// stable re-exports
+#[stable(feature = "rust1", since = "1.0.0")]
+pub use unicode::char::{ToLowercase, ToUppercase};
+#[stable(feature = "decode_utf16", since = "1.9.0")]
+pub use unicode::char::{decode_utf16, DecodeUtf16, DecodeUtf16Error};
+
+// unstable re-exports
+#[unstable(feature = "unicode", issue = "27783")]
+pub use unicode::tables::{UNICODE_VERSION};
+#[unstable(feature = "unicode", issue = "27783")]
+pub use unicode::version::UnicodeVersion;
+
 mod printable;
 
 use self::printable::is_printable;

src/libcore/unicode/char.rs

@@ -28,31 +28,12 @@
 
 #![stable(feature = "rust1", since = "1.0.0")]
 
+use char::*;
 use char::CharExt as C;
 use iter::FusedIterator;
 use fmt::{self, Write};
 use unicode::tables::{conversions, derived_property, general_category, property};
 
-// stable re-exports
-#[stable(feature = "rust1", since = "1.0.0")]
-pub use char::{MAX, from_digit, from_u32, from_u32_unchecked};
-#[stable(feature = "rust1", since = "1.0.0")]
-pub use char::{EscapeDebug, EscapeDefault, EscapeUnicode};
-#[stable(feature = "decode_utf16", since = "1.9.0")]
-pub use char::REPLACEMENT_CHARACTER;
-#[stable(feature = "char_from_str", since = "1.20.0")]
-pub use char::ParseCharError;
-
-// unstable re-exports
-#[stable(feature = "try_from", since = "1.26.0")]
-pub use char::CharTryFromError;
-#[unstable(feature = "decode_utf8", issue = "33906")]
-pub use char::{DecodeUtf8, decode_utf8};
-#[unstable(feature = "unicode", issue = "27783")]
-pub use unicode::tables::{UNICODE_VERSION};
-#[unstable(feature = "unicode", issue = "27783")]
-pub use unicode::version::UnicodeVersion;
-
 /// Returns an iterator that yields the lowercase equivalent of a `char`.
 ///
 /// This `struct` is created by the [`to_lowercase`] method on [`char`]. See

src/libcore/unicode/mod.rs

@@ -12,11 +12,11 @@
 #![allow(missing_docs)]
 
 mod bool_trie;
-mod tables;
-mod version;
+pub(crate) mod tables;
+pub(crate) mod version;
 
 pub mod str;
-pub mod char;
+pub(crate) mod char;
 
 // For use in liballoc, not re-exported in libstd.
 pub mod derived_property {

src/libstd/lib.rs

@@ -454,7 +454,7 @@ pub use alloc::string;
 #[stable(feature = "rust1", since = "1.0.0")]
 pub use alloc::vec;
 #[stable(feature = "rust1", since = "1.0.0")]
-pub use core::unicode::char;
+pub use core::char;
 #[stable(feature = "i128", since = "1.26.0")]
 pub use core::u128;