Implement Encode and Decode for all array types in arrayvec (#55)

* Implement Encode and Decode for [T; 33] and [T; 65]

Signed-off-by: koushiro <koushiro.cqx@gmail.com>

* Implement Encode and Decode for all array types in arrayvec

Signed-off-by: koushiro <koushiro.cqx@gmail.com>

* Merge multiple impl_array

Signed-off-by: koushiro <koushiro.cqx@gmail.com>

Cargo.toml

@@ -9,7 +9,7 @@ categories = ["encoding"]
 edition = "2018"
 
 [dependencies]
-arrayvec = { version = "0.4", default-features = false }
+arrayvec = { version = "0.4", default-features = false, features = ["array-sizes-33-128", "array-sizes-129-255"] }
 serde = { version = "1.0", optional = true }
 parity-codec-derive = { path = "derive", version = "3.1", default-features = false, optional = true }
 

src/codec.rs

@@ -711,7 +711,7 @@ impl<T: Decode> Decode for Option<T> {
 }
 
 macro_rules! impl_array {
-	( $( $n:expr )* ) => { $(
+	( $( $n:expr, )* ) => { $(
 		impl<T: Encode> Encode for [T; $n] {
 			fn encode_to<W: Output>(&self, dest: &mut W) {
 				for item in self.iter() {
@@ -737,8 +737,24 @@ macro_rules! impl_array {
 		)* }
 }
 
-impl_array!(1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
-	40 48 56 64 72 96 128 160 192 224 256);
+impl_array!(
+	1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
+	17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
+	32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,
+	52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71,
+	72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91,
+	92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108,
+	109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124,
+	125, 126, 127, 128,	129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140,
+	141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156,
+	157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172,
+	173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188,
+	189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204,
+	205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220,
+	221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236,
+	237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252,
+	253, 254, 255, 256, 384, 512, 768, 1024, 2048, 4096, 8192, 16384, 32768,
+);
 
 impl<T: Encode> Encode for Box<T> {
 	fn encode_to<W: Output>(&self, dest: &mut W) {