Removed num enum, updated derives

Cargo.toml

@@ -20,6 +20,3 @@ categories = [
     "no-std::no-alloc", 
     "parser-implementations"
 ]
-
-[dependencies]
-num_enum = { version = "0.7.0" }

src/errors.rs

@@ -1,7 +1,5 @@
 //! Error enums and flags
 
-use num_enum::{FromPrimitive, IntoPrimitive};
-
 /// A result type which uses the [Error] enum as the error type.
 pub type Result<T> = core::result::Result<T, Error>;
 
@@ -10,7 +8,7 @@ pub type Result<T> = core::result::Result<T, Error>;
 /// These errors occur during parsing or other calculations when those
 /// calculations fail. The [Error::SystemError] variant
 /// contains any errors generated by the 1553 bus.
-#[derive(Debug, Clone, PartialEq, Eq)]
+#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash, Debug)]
 #[repr(u8)]
 pub enum Error {
     /// An index was out of bounds for the data structure
@@ -63,7 +61,7 @@ pub enum Error {
 ///
 /// These errors are generated during runtime by terminals and
 /// provided in messages on the bus.
-#[derive(Debug, Clone, PartialEq, Eq)]
+#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash, Debug)]
 #[repr(u8)]
 pub enum SystemError {
     /// No error
@@ -89,11 +87,10 @@ pub enum SystemError {
 /// This flag is described on page 35 in the MIL-STD-1553 Tutorial[^1].
 ///
 /// [^1]: [MIL-STD-1553 Tutorial](http://www.horntech.cn/techDocuments/MIL-STD-1553Tutorial.pdf)
-#[derive(Debug, Clone, PartialEq, Eq, IntoPrimitive, FromPrimitive)]
+#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash, Debug)]
 #[repr(u8)]
 pub enum TerminalError {
     /// No error
-    #[default]
     None = 0,
 
     /// An error has occurred
@@ -112,6 +109,24 @@ impl TerminalError {
     }
 }
 
+impl From<u8> for TerminalError {
+    fn from(value: u8) -> Self {
+        match value {
+            1 => Self::Error,
+            _ => Self::None
+        }
+    }
+}
+
+impl From<TerminalError> for u8 {
+    fn from(value: TerminalError) -> Self {
+        match value {
+            TerminalError::Error => 1,
+            TerminalError::None => 0
+        }
+    }
+}
+
 /// This flag provides health data regarding subsystems of a remote terminal.
 ///
 /// The Subsystem Flag bit located at bit time 17 (index 13) is used to provide
@@ -124,11 +139,10 @@ impl TerminalError {
 /// This flag is described on page 34 in the MIL-STD-1553 Tutorial[^1].
 ///
 /// [^1]: [MIL-STD-1553 Tutorial](http://www.horntech.cn/techDocuments/MIL-STD-1553Tutorial.pdf)
-#[derive(Debug, Clone, PartialEq, Eq, IntoPrimitive, FromPrimitive)]
+#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash, Debug)]
 #[repr(u8)]
 pub enum SubsystemError {
     /// No error
-    #[default]
     None = 0,
 
     /// An error has occurred
@@ -147,6 +161,24 @@ impl SubsystemError {
     }
 }
 
+impl From<u8> for SubsystemError {
+    fn from(value: u8) -> Self {
+        match value {
+            1 => Self::Error,
+            _ => Self::None
+        }
+    }
+}
+
+impl From<SubsystemError> for u8 {
+    fn from(value: SubsystemError) -> Self {
+        match value {
+            SubsystemError::Error => 1,
+            SubsystemError::None => 0
+        }
+    }
+}
+
 /// This flag is set when a receiving terminal detects an error in a message.
 ///
 /// The error may have occurred in any of the data words within the message, and
@@ -159,11 +191,10 @@ impl SubsystemError {
 /// This flag is described on page 32 in the MIL-STD-1553 Tutorial[^1].
 ///
 /// [^1]: [MIL-STD-1553 Tutorial](http://www.horntech.cn/techDocuments/MIL-STD-1553Tutorial.pdf)
-#[derive(Debug, Clone, PartialEq, Eq, IntoPrimitive, FromPrimitive)]
+#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash, Debug)]
 #[repr(u8)]
 pub enum MessageError {
     /// No error
-    #[default]
     None = 0,
 
     /// An error has occurred
@@ -181,3 +212,21 @@ impl MessageError {
         matches!(self, Self::Error)
     }
 }
+
+impl From<u8> for MessageError {
+    fn from(value: u8) -> Self {
+        match value {
+            1 => Self::Error,
+            _ => Self::None
+        }
+    }
+}
+
+impl From<MessageError> for u8 {
+    fn from(value: MessageError) -> Self {
+        match value {
+            MessageError::Error => 1,
+            MessageError::None => 0
+        }
+    }
+}

src/fields.rs

@@ -4,6 +4,7 @@
 ///
 /// Given a mask and offset, the Field struct can get
 /// or set between 1 and 8 bits in a u16 word.
+#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash, Debug)]
 pub struct Field {
     /// The mask used to isolate the value
     mask: u16,