From 9330a83775991539e2d0b395b1422072b4baec21 Mon Sep 17 00:00:00 2001
From: Héctor Ramón Jiménez <hector0193@gmail.com>
Date: Fri, 1 Jul 2022 03:37:28 +0200
Subject: Fix `Widget::tag` implementation of `pure::Canvas`

Using `P::State` can cause a panic if the `Canvas` has `()` as
`P::State` and replaces a stateless widget in a future `view` call.
---
 graphics/src/widget/pure/canvas.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'graphics/src')

diff --git a/graphics/src/widget/pure/canvas.rs b/graphics/src/widget/pure/canvas.rs
index 2e3e7ede..b51d5853 100644
--- a/graphics/src/widget/pure/canvas.rs
+++ b/graphics/src/widget/pure/canvas.rs
@@ -109,7 +109,8 @@ where
     B: Backend,
 {
     fn tag(&self) -> tree::Tag {
-        tree::Tag::of::<P::State>()
+        struct Tag<T>(T);
+        tree::Tag::of::<Tag<P::State>>()
     }
 
     fn state(&self) -> tree::State {
-- 
cgit