From 57c203ef7fdd6efdecbece708df44e7944a3f317 Mon Sep 17 00:00:00 2001
From: Jesse Jones <jesse9jones@gmail.com>
Date: Sun, 18 Nov 2012 15:26:12 -0800
Subject: [PATCH] Documented copy, ref, move in patterns.

Closes #3337
---
 doc/rust.md | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/doc/rust.md b/doc/rust.md
index dddd372dcc8e..5936f6b2848b 100644
--- a/doc/rust.md
+++ b/doc/rust.md
@@ -2206,7 +2206,12 @@ fn main() {
 }
 ~~~~
 
-A pattern that's just a variable binding,
+Patterns that bind variables default to binding to a copy of the matched value. This can be made
+explicit using the ```copy``` keyword, changed to bind to a borrowed pointer by using the ```ref```
+keyword, or to a mutable borrowed pointer using ```ref mut```, or the value can be moved into
+the new binding using ```move```.
+
+A pattern that's just an identifier,
 like `Nil` in the previous answer,
 could either refer to an enum variant that's in scope,
 or bind a new variable.