Add ToCStr method .with_c_str()

.with_c_str() is a replacement for the old .as_c_str(), to avoid
unnecessary boilerplate.

Replace all usages of .to_c_str().with_ref() with .with_c_str().

1 files changed, 5 insertions, 5 deletions

diff --git a/src/libextra/rl.rs b/src/libextra/rl.rs
index 9106d4cd684..ead1f276ca7 100644
--- a/src/libextra/rl.rs
+++ b/src/libextra/rl.rs
@@ -32,7 +32,7 @@ pub mod rustrt {
 
 /// Add a line to history
 pub unsafe fn add_history(line: &str) -> bool {
-    do line.to_c_str().with_ref |buf| {
+    do line.with_c_str |buf| {
         rustrt::linenoiseHistoryAdd(buf) == 1 as c_int
     }
 }
@@ -44,21 +44,21 @@ pub unsafe fn set_history_max_len(len: int) -> bool {
 
 /// Save line history to a file
 pub unsafe fn save_history(file: &str) -> bool {
-    do file.to_c_str().with_ref |buf| {
+    do file.with_c_str |buf| {
         rustrt::linenoiseHistorySave(buf) == 1 as c_int
     }
 }
 
 /// Load line history from a file
 pub unsafe fn load_history(file: &str) -> bool {
-    do file.to_c_str().with_ref |buf| {
+    do file.with_c_str |buf| {
         rustrt::linenoiseHistoryLoad(buf) == 1 as c_int
     }
 }
 
 /// Print out a prompt and then wait for input and return it
 pub unsafe fn read(prompt: &str) -> Option<~str> {
-    do prompt.to_c_str().with_ref |buf| {
+    do prompt.with_c_str |buf| {
         let line = rustrt::linenoise(buf);
 
         if line.is_null() { None }
@@ -80,7 +80,7 @@ pub unsafe fn complete(cb: CompletionCb) {
 
             unsafe {
                 do cb(str::raw::from_c_str(line)) |suggestion| {
-                    do suggestion.to_c_str().with_ref |buf| {
+                    do suggestion.with_c_str |buf| {
                         rustrt::linenoiseAddCompletion(completions, buf);
                     }
                 }