From 575adf9a7a87ba5d75548f7cd4efdec53c1fe17c Mon Sep 17 00:00:00 2001
From: Nadrieril
Date: Mon, 11 Nov 2019 12:45:20 +0000
Subject: Move "Type error" error prefix

---
 dhall/src/error/mod.rs | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

(limited to 'dhall/src/error/mod.rs')

diff --git a/dhall/src/error/mod.rs b/dhall/src/error/mod.rs
index efbd578..02e8ed3 100644
--- a/dhall/src/error/mod.rs
+++ b/dhall/src/error/mod.rs
@@ -103,14 +103,18 @@ impl std::fmt::Display for TypeError {
     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
         use TypeMessage::*;
         let msg = match &self.message {
-            UnboundVariable(span) => span.error("Unbound variable"),
-            InvalidInputType(_) => "Invalid function input".to_string(),
-            InvalidOutputType(_) => "Invalid function output".to_string(),
-            NotAFunction(_) => "Not a function".to_string(),
+            UnboundVariable(span) => span.error("Type error: Unbound variable"),
+            InvalidInputType(_) => {
+                "Type error: Invalid function input".to_string()
+            }
+            InvalidOutputType(_) => {
+                "Type error: Invalid function output".to_string()
+            }
+            NotAFunction(_) => "Type error: Not a function".to_string(),
             TypeMismatch(_, _, _) => {
-                "Wrong type of function argument".to_string()
+                "Type error: Wrong type of function argument".to_string()
             }
-            _ => "Unhandled error".to_string(),
+            _ => "Type error: Unhandled error".to_string(),
         };
         write!(f, "{}", msg)
     }
@@ -126,7 +130,7 @@ impl std::fmt::Display for Error {
             Error::Decode(err) => write!(f, "{:?}", err),
             Error::Encode(err) => write!(f, "{:?}", err),
             Error::Resolve(err) => write!(f, "{:?}", err),
-            Error::Typecheck(err) => write!(f, "Type error: {}", err),
+            Error::Typecheck(err) => write!(f, "{}", err),
         }
     }
 }
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