Add impls for ToClvm and FromClvm to bool (#487)

Author: Rigidity

crates/clvm-traits/src/from_clvm.rs

@@ -55,6 +55,19 @@ clvm_primitive!(i128);
 clvm_primitive!(usize);
 clvm_primitive!(isize);
 
+impl<N> FromClvm<N> for bool {
+    fn from_clvm(decoder: &impl ClvmDecoder<Node = N>, node: N) -> Result<Self, FromClvmError> {
+        let atom = decoder.decode_atom(&node)?;
+        match atom.as_ref() {
+            [] => Ok(false),
+            [1] => Ok(true),
+            _ => Err(FromClvmError::Custom(
+                "expected boolean value of either `()` or `1`".to_string(),
+            )),
+        }
+    }
+}
+
 impl<N, A, B> FromClvm<N> for (A, B)
 where
     A: FromClvm<N>,
@@ -211,6 +224,19 @@ mod tests {
         assert_eq!(decode(a, "8180"), Ok(-128i8));
     }
 
+    #[test]
+    fn test_bool() {
+        let a = &mut Allocator::new();
+        assert_eq!(decode(a, "80"), Ok(false));
+        assert_eq!(decode(a, "01"), Ok(true));
+        assert_eq!(
+            decode::<bool>(a, "05"),
+            Err(FromClvmError::Custom(
+                "expected boolean value of either `()` or `1`".to_string(),
+            ))
+        )
+    }
+
     #[test]
     fn test_pair() {
         let a = &mut Allocator::new();

crates/clvm-traits/src/to_clvm.rs

@@ -40,6 +40,12 @@ clvm_primitive!(i128);
 clvm_primitive!(usize);
 clvm_primitive!(isize);
 
+impl<N> ToClvm<N> for bool {
+    fn to_clvm(&self, encoder: &mut impl ClvmEncoder<Node = N>) -> Result<N, ToClvmError> {
+        (if *self { 1 } else { 0 }).to_clvm(encoder)
+    }
+}
+
 impl<N, T> ToClvm<N> for &T
 where
     T: ToClvm<N>,
@@ -173,6 +179,13 @@ mod tests {
         assert_eq!(encode(a, -128i8), Ok("8180".to_owned()));
     }
 
+    #[test]
+    fn test_bool() {
+        let a = &mut Allocator::new();
+        assert_eq!(encode(a, true), Ok("01".to_owned()));
+        assert_eq!(encode(a, false), Ok("80".to_owned()));
+    }
+
     #[test]
     fn test_reference() {
         let a = &mut Allocator::new();