From 6e3d78f06fc78e6ad58379824be2d7fed525655a Mon Sep 17 00:00:00 2001
From: Huon Wilson <dbau.pp+github@gmail.com>
Date: Mon, 5 Jan 2015 17:07:16 +1100
Subject: Ungate default type parameters.

These are in scope for 1.0, and this is good to e.g. find as many bugs
as possible.
---
 src/libsyntax/ext/deriving/hash.rs | 20 +++++++-------------
 src/libsyntax/ext/expand.rs        |  2 --
 2 files changed, 7 insertions(+), 15 deletions(-)

(limited to 'src/libsyntax/ext')

diff --git a/src/libsyntax/ext/deriving/hash.rs b/src/libsyntax/ext/deriving/hash.rs
index 9ff42d85cfb..553b8af172f 100644
--- a/src/libsyntax/ext/deriving/hash.rs
+++ b/src/libsyntax/ext/deriving/hash.rs
@@ -25,20 +25,14 @@ pub fn expand_deriving_hash<F>(cx: &mut ExtCtxt,
     F: FnOnce(P<Item>),
 {
 
-    let (path, generics, args) = if cx.ecfg.deriving_hash_type_parameter {
-        (Path::new_(vec!("std", "hash", "Hash"), None,
-                    vec!(box Literal(Path::new_local("__S"))), true),
-         LifetimeBounds {
-             lifetimes: Vec::new(),
-             bounds: vec!(("__S",
-                           vec!(Path::new(vec!("std", "hash", "Writer"))))),
-         },
-         Path::new_local("__S"))
-    } else {
-        (Path::new(vec!("std", "hash", "Hash")),
-         LifetimeBounds::empty(),
-         Path::new(vec!("std", "hash", "sip", "SipState")))
+    let path = Path::new_(vec!("std", "hash", "Hash"), None,
+                          vec!(box Literal(Path::new_local("__S"))), true);
+    let generics = LifetimeBounds {
+        lifetimes: Vec::new(),
+        bounds: vec!(("__S",
+                      vec!(Path::new(vec!("std", "hash", "Writer"))))),
     };
+    let args = Path::new_local("__S");
     let inline = cx.meta_word(span, InternedString::new("inline"));
     let attrs = vec!(cx.attribute(span, inline));
     let hash_trait_def = TraitDef {
diff --git a/src/libsyntax/ext/expand.rs b/src/libsyntax/ext/expand.rs
index b3f30dd4581..b3e839b4fb6 100644
--- a/src/libsyntax/ext/expand.rs
+++ b/src/libsyntax/ext/expand.rs
@@ -1161,7 +1161,6 @@ fn new_span(cx: &ExtCtxt, sp: Span) -> Span {
 
 pub struct ExpansionConfig {
     pub crate_name: String,
-    pub deriving_hash_type_parameter: bool,
     pub enable_quotes: bool,
     pub recursion_limit: uint,
 }
@@ -1170,7 +1169,6 @@ impl ExpansionConfig {
     pub fn default(crate_name: String) -> ExpansionConfig {
         ExpansionConfig {
             crate_name: crate_name,
-            deriving_hash_type_parameter: false,
             enable_quotes: false,
             recursion_limit: 64,
         }
-- 
cgit 1.4.1-3-g733a5