Implement generalized object and type parameter bounds (Fixes #16462)

1 files changed, 4 insertions, 4 deletions

diff --git a/src/libsyntax/ext/env.rs b/src/libsyntax/ext/env.rs
index b24cfb85794..aae92ae85fc 100644
--- a/src/libsyntax/ext/env.rs
+++ b/src/libsyntax/ext/env.rs
@@ -23,8 +23,8 @@ use parse::token;
 
 use std::os;
 
-pub fn expand_option_env(cx: &mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
-                         -> Box<base::MacResult> {
+pub fn expand_option_env<'cx>(cx: &'cx mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
+                              -> Box<base::MacResult+'cx> {
     let var = match get_single_str_from_tts(cx, sp, tts, "option_env!") {
         None => return DummyResult::expr(sp),
         Some(v) => v
@@ -59,8 +59,8 @@ pub fn expand_option_env(cx: &mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
     MacExpr::new(e)
 }
 
-pub fn expand_env(cx: &mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
-                  -> Box<base::MacResult> {
+pub fn expand_env<'cx>(cx: &'cx mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
+                       -> Box<base::MacResult+'cx> {
     let exprs = match get_exprs_from_tts(cx, sp, tts) {
         Some(ref exprs) if exprs.len() == 0 => {
             cx.span_err(sp, "env! takes 1 or 2 arguments");