From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sat, 26 Mar 2022 00:32:52 +0000 (+0000)
Subject: Introduce InvalidAbbrevPresentationLayout error type
X-Git-Tag: otter-1.0.0~131
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=3203871d6b608b9dbb75ca39143424582e5e578c;p=otter.git

Introduce InvalidAbbrevPresentationLayout error type

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---

diff --git a/src/ui.rs b/src/ui.rs
index 38be33c1..855099cd 100644
--- a/src/ui.rs
+++ b/src/ui.rs
@@ -74,14 +74,18 @@ impl Default for PresentationLayout {
 #[derive(Debug)]
 pub struct AbbrevPresentationLayout(pub PresentationLayout);
 
+#[derive(Error,Debug,Clone,Copy)]
+#[error("Invalid presentation layout character")]
+pub struct InvalidAbbrevPresentationLayout;
+
 impl FromStr for AbbrevPresentationLayout {
-  type Err = ();
+  type Err = InvalidAbbrevPresentationLayout;
   #[throws(Self::Err)]
   fn from_str(s: &str) -> Self {
     AbbrevPresentationLayout(match s {
       "p" => PL::Portrait,
       "l" => PL::Landscape,
-      _ => throw!(())
+      _ => throw!(InvalidAbbrevPresentationLayout)
     })
   }
 }