Merge #328

328: Implement Error traits for Infallible r=ryankurte a=jannic



Co-authored-by: Jan Niehusmann <jan@gondor.com>

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+### Added
+- `Error` traits for Can, SPI, I2C and Serial are implemented for Infallible
 
 ## [v1.0.0-alpha.6] - 2021-11-19
 

src/can/mod.rs

@@ -58,6 +58,12 @@ pub trait Error: core::fmt::Debug {
     fn kind(&self) -> ErrorKind;
 }
 
+impl Error for core::convert::Infallible {
+    fn kind(&self) -> ErrorKind {
+        match *self {}
+    }
+}
+
 /// CAN error kind
 ///
 /// This represents a common set of CAN operation errors. HAL implementations are

src/i2c.rs

@@ -107,6 +107,12 @@ pub trait Error: core::fmt::Debug {
     fn kind(&self) -> ErrorKind;
 }
 
+impl Error for core::convert::Infallible {
+    fn kind(&self) -> ErrorKind {
+        match *self {}
+    }
+}
+
 /// I2C error kind
 ///
 /// This represents a common set of I2C operation errors. HAL implementations are

src/serial/mod.rs

@@ -13,6 +13,12 @@ pub trait Error: core::fmt::Debug {
     fn kind(&self) -> ErrorKind;
 }
 
+impl Error for core::convert::Infallible {
+    fn kind(&self) -> ErrorKind {
+        match *self {}
+    }
+}
+
 /// Serial error kind
 ///
 /// This represents a common set of serial operation errors. HAL implementations are

src/spi/mod.rs

@@ -64,6 +64,12 @@ pub trait Error: core::fmt::Debug {
     fn kind(&self) -> ErrorKind;
 }
 
+impl Error for core::convert::Infallible {
+    fn kind(&self) -> ErrorKind {
+        match *self {}
+    }
+}
+
 /// SPI error kind
 ///
 /// This represents a common set of SPI operation errors. HAL implementations are