Implements std::error::Error for ErrCode.

gifnksm · gifnksm · commit 2d383d48b7f7 · 2014-11-03T20:03:15.000+09:00
This change supports "Error interoperation". See rust-lang/rfcs#201, rust-lang/rust#17747.
diff --git a/src/ffi/err.rs b/src/ffi/err.rs
@@ -1,5 +1,5 @@
 use std::c_str::CString;
-use std::fmt;
+use std::{error, fmt, str};
 use libc::{c_int,c_char};
 
 #[allow(non_camel_case_types)]
@@ -148,3 +148,9 @@ impl fmt::Show for ErrCode {
         }
     }
 }
+
+impl error::Error for ErrCode {
+    fn description(&self) -> &str {
+        unsafe { str::raw::c_str_to_static_slice(curl_easy_strerror(*self)) }
+    }
+}

Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,5 @@`
`1`	`1`	`use std::c_str::CString;`
`2`		`-use std::fmt;`
	`2`	`+use std::{error, fmt, str};`
`3`	`3`	`use libc::{c_int,c_char};`
`4`	`4`
`5`	`5`	`#[allow(non_camel_case_types)]`
`@@ -148,3 +148,9 @@ impl fmt::Show for ErrCode {`
`148`	`148`	`}`
`149`	`149`	`}`
`150`	`150`	`}`
	`151`	`+`
	`152`	`+impl error::Error for ErrCode {`
	`153`	`+ fn description(&self) -> &str {`
	`154`	`+ unsafe { str::raw::c_str_to_static_slice(curl_easy_strerror(*self)) }`
	`155`	`+ }`
	`156`	`+}`