From ab55d21013a279568379b97821da98457a10754a Mon Sep 17 00:00:00 2001
From: Sampras Lopes <lsampras@protonmail.com>
Date: Mon, 8 May 2023 14:45:05 +0530
Subject: [PATCH] feat(errors): add reverse errorswitch trait for foreign
 errors (#909)

---
 crates/common_utils/src/errors.rs | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/crates/common_utils/src/errors.rs b/crates/common_utils/src/errors.rs
index 9a1e681211..e3f00799e0 100644
--- a/crates/common_utils/src/errors.rs
+++ b/crates/common_utils/src/errors.rs
@@ -98,9 +98,26 @@ where
 }
 
 /// Allow [error_stack::Report] to convert between error types
-/// This autoimplements [ReportSwitchExt] for the corresponding errors
+/// This auto-implements [ReportSwitchExt] for the corresponding errors
 pub trait ErrorSwitch<T> {
     /// Get the next error type that the source error can be escalated into
     /// This does not consume the source error since we need to keep it in context
     fn switch(&self) -> T;
 }
+
+/// Allow [error_stack::Report] to convert between error types
+/// This serves as an alternative to [ErrorSwitch]
+pub trait ErrorSwitchFrom<T> {
+    /// Convert to an error type that the source can be escalated into
+    /// This does not consume the source error since we need to keep it in context
+    fn switch_from(error: &T) -> Self;
+}
+
+impl<T, S> ErrorSwitch<T> for S
+where
+    T: ErrorSwitchFrom<Self>,
+{
+    fn switch(&self) -> T {
+        T::switch_from(self)
+    }
+}