Merge pull request #1007 from phycrax/impl-format-fmterror

impl Format for core::fmt::Error

Author: jonathanpallant

CHANGELOG.md

@@ -59,6 +59,7 @@ We have several packages which live in this repository. Changes are tracked sepa
 * [#956] Link `LICENSE-*` in the crate folder
 * [#955] Allow using the `defmt/alloc` feature on bare metal ESP32-S2
 * [#972] Fix logic bug in env_filter
+* [#1007] `defmt`: impl `Format` for `core::fmt::Error`
 
 ### [defmt-v1.0.1] (2025-04-01)
 
@@ -958,6 +959,7 @@ Initial release
 
 ---
 
+[#1007]: https://github.com/knurling-rs/defmt/pull/1007
 [#990]: https://github.com/knurling-rs/defmt/pull/990
 [#986]: https://github.com/knurling-rs/defmt/pull/986
 [#974]: https://github.com/knurling-rs/defmt/pull/974

defmt/src/impls/core_/fmt.rs

@@ -0,0 +1,7 @@
+use super::*;
+
+impl Format for core::fmt::Error {
+    fn format(&self, fmt: Formatter) {
+        crate::write!(fmt, "fmt::Error")
+    }
+}

defmt/src/impls/core_/mod.rs

@@ -8,6 +8,7 @@
 mod alloc_;
 mod array;
 mod cell;
+mod fmt;
 #[cfg(feature = "ip_in_core")]
 mod net;
 mod num;