Fixed #707 (#708)

implemented `Decode` and `BorrowDecode` for Rc<str>

.gitignore

@@ -4,5 +4,6 @@
 *.swo
 .cargo
 .vscode
+.idea
 rls*.log
 tarpaulin-report.html

src/features/impl_alloc.rs

@@ -451,6 +451,13 @@ where
     }
 }
 
+impl Decode for Rc<str> {
+    fn decode<D: Decoder>(decoder: &mut D) -> Result<Self, DecodeError> {
+        let decoded = String::decode(decoder)?;
+        Ok(decoded.into())
+    }
+}
+
 impl<'de, T> BorrowDecode<'de> for Rc<T>
 where
     T: BorrowDecode<'de>,
@@ -461,6 +468,13 @@ where
     }
 }
 
+impl<'de> BorrowDecode<'de> for Rc<str> {
+    fn borrow_decode<D: BorrowDecoder<'de>>(decoder: &mut D) -> Result<Self, DecodeError> {
+        let decoded = String::decode(decoder)?;
+        Ok(decoded.into())
+    }
+}
+
 impl<T> Encode for Rc<T>
 where
     T: Encode + ?Sized,