From df1ac7aa63ea89a067c57663eab035f7b83f6933 Mon Sep 17 00:00:00 2001
From: Huon Wilson <dbau.pp+github@gmail.com>
Date: Tue, 3 Feb 2015 20:11:38 +1100
Subject: Deprecate in-tree `rand`, `std::rand` and `#[derive(Rand)]`.

Use the crates.io crate `rand` (version 0.1 should be a drop in
replacement for `std::rand`) and `rand_macros` (`#[derive_Rand]` should
be a drop-in replacement).

[breaking-change]
---
 src/libsyntax/ext/deriving/rand.rs | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/libsyntax')

diff --git a/src/libsyntax/ext/deriving/rand.rs b/src/libsyntax/ext/deriving/rand.rs
index 9fd5091e194..ec6eb9bee61 100644
--- a/src/libsyntax/ext/deriving/rand.rs
+++ b/src/libsyntax/ext/deriving/rand.rs
@@ -24,6 +24,10 @@ pub fn expand_deriving_rand<F>(cx: &mut ExtCtxt,
                                push: F) where
     F: FnOnce(P<Item>),
 {
+    cx.span_warn(span,
+                 "`#[derive(Rand)]` is deprecated in favour of `#[derive_Rand]` from \
+                  `rand_macros` on crates.io");
+
     let trait_def = TraitDef {
         span: span,
         attributes: Vec::new(),
-- 
cgit 1.4.1-3-g733a5