Merge pull request #78 from quartiq/heapless-0.8

bump heapless to 0.8

Author: ryan-summers

CHANGELOG.md

@@ -7,11 +7,15 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
-### Added 
+### Added
 
 - Support for optional package `defmt` which allows for easy conversion for
 error types when using tools like `probe-rs` for logging over debuggers.
 
+### Changed
+
+- `heapless` bumped to v0.8.
+
 ## [v0.5.1] - 2023-07-26
 
 ### Added

Cargo.toml

@@ -16,7 +16,7 @@ version = "0.5.1"
 ryu = "1.0.5"
 
 [dependencies.heapless]
-version = "0.7"
+version = "0.8"
 optional = true
 
 [dependencies.serde]

src/de/mod.rs

@@ -757,6 +757,7 @@ where
 
 #[cfg(test)]
 mod tests {
+    use core::str::FromStr;
     use serde_derive::Deserialize;
 
     #[derive(Debug, Deserialize, PartialEq)]
@@ -1083,7 +1084,10 @@ mod tests {
         assert_eq!(
             crate::from_str::<Xy>(r#"[10]"#),
             Err(crate::de::Error::CustomErrorWithMessage(
-                "invalid length 1, expected tuple struct Xy with 2 elements".into()
+                heapless::String::from_str(
+                    "invalid length 1, expected tuple struct Xy with 2 elements"
+                )
+                .unwrap()
             ))
         );
         assert_eq!(
@@ -1190,7 +1194,9 @@ mod tests {
         use serde::de::Error;
         assert_eq!(
             crate::de::Error::custom("something bad happened"),
-            crate::de::Error::CustomErrorWithMessage("something bad happened".into())
+            crate::de::Error::CustomErrorWithMessage(
+                heapless::String::from_str("something bad happened").unwrap()
+            )
         );
     }
 
@@ -1200,8 +1206,8 @@ mod tests {
         use serde::de::Error;
         assert_eq!(
             crate::de::Error::custom("0123456789012345678901234567890123456789012345678901234567890123 <- after here the message should be truncated"),
-            crate::de::Error::CustomErrorWithMessage(
-                "0123456789012345678901234567890123456789012345678901234567890123".into()
+            crate::de::Error::CustomErrorWithMessage(heapless::String::from_str(
+                "0123456789012345678901234567890123456789012345678901234567890123").unwrap()
             )
         );
     }

src/ser/mod.rs

@@ -448,7 +448,7 @@ pub fn to_string<T, const N: usize>(value: &T) -> Result<String<N>>
 where
     T: ser::Serialize + ?Sized,
 {
-    Ok(unsafe { str::from_utf8_unchecked(&to_vec::<T, N>(value)?) }.into())
+    Ok(unsafe { String::from_utf8_unchecked(to_vec::<T, N>(value)?) })
 }
 
 /// Serializes the given data structure as a JSON byte vector