From ff1b8719169c6263ff9d74bc2e30b7ff2b868b63 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sat, 13 Feb 2021 02:04:03 +0000
Subject: [PATCH] pieces: Make SimplePieceSpec suitable for deserialize

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 src/pieces.rs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/pieces.rs b/src/pieces.rs
index ba314a6d..7d146557 100644
--- a/src/pieces.rs
+++ b/src/pieces.rs
@@ -14,7 +14,7 @@ type SE = SVGProcessingError;
 
 #[derive(Debug,Serialize,Deserialize)]
 // todo: this serialisation is rather large
-struct SimpleShape {
+pub struct SimpleShape {
   desc: Html,
   path: Html,
   colours: ColourMap,
@@ -213,13 +213,15 @@ impl SimpleShape {
   }
 }
 
-trait SimplePieceSpec {
+#[typetag::serde(tag="type")]
+pub trait SimplePieceSpec: Debug {
   fn load_raw(&self) -> Result<(SimpleShape, &SimpleCommon), SpecError>;
   fn load(&self) -> Result<Box<dyn Piece>, SpecError> {
     Ok(Box::new(self.load_raw()?.0))
   }
 }
 
+#[typetag::serde]
 impl SimplePieceSpec for piece_specs::Disc {
   #[throws(SpecError)]
   fn load_raw(&self) -> (SimpleShape, &SimpleCommon) {
@@ -251,6 +253,7 @@ impl piece_specs::Square {
   }
 }
 
+#[typetag::serde]
 impl SimplePieceSpec for piece_specs::Square {
   #[throws(SpecError)]
   fn load_raw(&self) -> (SimpleShape, &SimpleCommon) {
-- 
2.30.2