From deb1544bc566b3117a97b72ee2d98efdbba58616 Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Sat, 30 Jul 2016 11:45:31 +0200
Subject: [PATCH] Add info_result

---
 libimagutil/src/info_result.rs | 28 ++++++++++++++++++++++++++++
 libimagutil/src/lib.rs         |  1 +
 2 files changed, 29 insertions(+)
 create mode 100644 libimagutil/src/info_result.rs

diff --git a/libimagutil/src/info_result.rs b/libimagutil/src/info_result.rs
new file mode 100644
index 00000000..0c40612b
--- /dev/null
+++ b/libimagutil/src/info_result.rs
@@ -0,0 +1,28 @@
+pub trait InfoResult<T, E> : Sized {
+
+    fn map_info<F: FnOnce(&T) -> String>(self, f: F) -> Self;
+
+    fn map_info_str(self, s: &str) -> Self {
+        self.map_info(|_| format!("{}", s))
+    }
+
+    fn map_info_err<F: FnOnce(&E) -> String>(self, f: F) -> Self;
+
+    fn map_info_err_str(self, s: &str) -> Self {
+        self.map_info_err(|_| format!("{}", s))
+    }
+
+}
+
+impl<T, E> InfoResult<T, E> for Result<T, E> {
+
+    fn map_info<F: FnOnce(&T) -> String>(self, f: F) -> Self {
+        self.map(|t| { info!("{}", f(&t)); t })
+    }
+
+    fn map_info_err<F: FnOnce(&E) -> String>(self, f: F) -> Self {
+        self.map_err(|e| { info!("{}", f(&e)); e })
+    }
+
+}
+
diff --git a/libimagutil/src/lib.rs b/libimagutil/src/lib.rs
index 0eafd4ef..a05d14e8 100644
--- a/libimagutil/src/lib.rs
+++ b/libimagutil/src/lib.rs
@@ -18,6 +18,7 @@
 extern crate regex;
 
 pub mod debug_result;
+pub mod info_result;
 pub mod ismatch;
 pub mod iter;
 pub mod key_value_split;