From 9520354115dfc00e3c5d3aa951897e9ebf043db6 Mon Sep 17 00:00:00 2001
From: Michael Sproul <micsproul@gmail.com>
Date: Mon, 21 Dec 2015 23:21:08 +1100
Subject: Add an impl for Box<Error> from String.

Closes #30156.
---
 src/libstd/error.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'src/libstd')

diff --git a/src/libstd/error.rs b/src/libstd/error.rs
index 46d03169b2d..e2a51752eb8 100644
--- a/src/libstd/error.rs
+++ b/src/libstd/error.rs
@@ -119,6 +119,15 @@ impl From<String> for Box<Error + Send + Sync> {
     }
 }
 
+#[stable(feature = "string_box_error", since = "1.7.0")]
+impl From<String> for Box<Error> {
+    fn from(str_err: String) -> Box<Error> {
+        let err1: Box<Error + Send + Sync> = From::from(str_err);
+        let err2: Box<Error> = err1;
+        err2
+    }
+}
+
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<'a, 'b> From<&'b str> for Box<Error + Send + Sync + 'a> {
     fn from(err: &'b str) -> Box<Error + Send + Sync + 'a> {
-- 
cgit 1.4.1-3-g733a5