From 4c76ea7a5a11c3b7eb609196d4aee5d1bfb01cf6 Mon Sep 17 00:00:00 2001
From: Zachary Harrold <zac@harrold.com.au>
Date: Thu, 10 Oct 2024 01:20:16 +1100
Subject: [PATCH] Remove `thiserror` from `bevy_core_pipeline` (#15775)

# Objective

- Contributes to #15460

## Solution

- Removed `thiserror` from `bevy_core_pipeline`
---
 crates/bevy_core_pipeline/Cargo.toml                   |  6 +++++-
 .../src/auto_exposure/compensation_curve.rs            | 10 +++++-----
 2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/crates/bevy_core_pipeline/Cargo.toml b/crates/bevy_core_pipeline/Cargo.toml
index e134f702caade..31d37eeead90a 100644
--- a/crates/bevy_core_pipeline/Cargo.toml
+++ b/crates/bevy_core_pipeline/Cargo.toml
@@ -41,7 +41,11 @@ bitflags = "2.3"
 radsort = "0.1"
 nonmax = "0.5"
 smallvec = "1"
-thiserror = "1.0"
+derive_more = { version = "1", default-features = false, features = [
+  "error",
+  "from",
+  "display",
+] }
 
 [lints]
 workspace = true
diff --git a/crates/bevy_core_pipeline/src/auto_exposure/compensation_curve.rs b/crates/bevy_core_pipeline/src/auto_exposure/compensation_curve.rs
index 67dcead57a834..3c64152063493 100644
--- a/crates/bevy_core_pipeline/src/auto_exposure/compensation_curve.rs
+++ b/crates/bevy_core_pipeline/src/auto_exposure/compensation_curve.rs
@@ -10,7 +10,7 @@ use bevy_render::{
     },
     renderer::{RenderDevice, RenderQueue},
 };
-use thiserror::Error;
+use derive_more::derive::{Display, Error};
 
 const LUT_SIZE: usize = 256;
 
@@ -40,16 +40,16 @@ pub struct AutoExposureCompensationCurve {
 }
 
 /// Various errors that can occur when constructing an [`AutoExposureCompensationCurve`].
-#[derive(Error, Debug)]
+#[derive(Error, Display, Debug)]
 pub enum AutoExposureCompensationCurveError {
     /// The curve couldn't be built in the first place.
-    #[error("curve could not be constructed from the given data")]
+    #[display("curve could not be constructed from the given data")]
     InvalidCurve,
     /// A discontinuity was found in the curve.
-    #[error("discontinuity found between curve segments")]
+    #[display("discontinuity found between curve segments")]
     DiscontinuityFound,
     /// The curve is not monotonically increasing on the x-axis.
-    #[error("curve is not monotonically increasing on the x-axis")]
+    #[display("curve is not monotonically increasing on the x-axis")]
     NotMonotonic,
 }