libproc_macro: Move Delimiter type to group module

The Delimiter rust type is inherently tied to the Group type in the
group module.

ChangeLog:

	* librust/proc_macro/rust/group.rs: Add Delimiter type.
	* librust/proc_macro/rust/lib.rs: Remove Delimiter type.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

2 files changed, 14 insertions, 15 deletions

diff --git a/librust/proc_macro/rust/group.rs b/librust/proc_macro/rust/group.rs
index 0434d6c..e0e3de9 100644
--- a/librust/proc_macro/rust/group.rs
+++ b/librust/proc_macro/rust/group.rs
@@ -1,8 +1,20 @@
 use std::fmt;
-use Delimiter;
 use Span;
 use TokenStream;
 
+/// Describes how a sequence of token trees is delimited.
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+pub enum Delimiter {
+    /// The sequence is delimited by a parenthesis `(...)`.
+    Parenthesis,
+    /// The sequence is delimited by a brace `{...}`.
+    Brace,
+    /// The sequence is delimited by a bracket `[...]`.
+    Bracket,
+    /// Invisible delimiter to preserve operator priority.
+    None,
+}
+
 /// A delimited token stream.
 #[derive(Clone)]
 pub struct Group {
diff --git a/librust/proc_macro/rust/lib.rs b/librust/proc_macro/rust/lib.rs
index 26011f8..bdafacf 100644
--- a/librust/proc_macro/rust/lib.rs
+++ b/librust/proc_macro/rust/lib.rs
@@ -1,4 +1,4 @@
-pub use group::Group;
+pub use group::{Delimiter, Group};
 pub use ident::Ident;
 pub use literal::Literal;
 pub use punct::{Punct, Spacing};
@@ -12,19 +12,6 @@ mod literal;
 mod punct;
 mod span;
 
-/// Describes how a sequence of token trees is delimited.
-#[derive(Copy, Clone, Debug, PartialEq, Eq)]
-pub enum Delimiter {
-    /// The sequence is delimited by a parenthesis `(...)`.
-    Parenthesis,
-    /// The sequence is delimited by a brace `{...}`.
-    Brace,
-    /// The sequence is delimited by a bracket `[...]`.
-    Bracket,
-    /// Invisible delimiter to preserve operator priority.
-    None,
-}
-
 /// Error returned from `from_str` functions.
 #[derive(Debug)]
 pub struct LexError;