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feat(tokens): tokenize tuples 

* tuples impl Tokenizable instead of impl Tokenize/Detokenize

* uncomment the abigen for DyDxLimitOrders contract (nested tuples)
This commit is contained in:
Rohit Narurkar 2020-06-29 13:33:01 +05:30 committed by GitHub
parent d218dba6df
commit f88f0129f9
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 84 additions and 80 deletions
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154
ethers-core/src/abi/tokens.rs
View File

@ -48,48 +48,6 @@ impl<T: Tokenizable> Detokenize for T {
}
}
macro_rules! impl_output {
($num: expr, $( $ty: ident , )+) => {
impl<$($ty, )+> Detokenize for ($($ty,)+) where
$(
$ty: Tokenizable,
)+
{
fn from_tokens(mut tokens: Vec<Token>) -> Result<Self, InvalidOutputType> {
if tokens.len() != $num {
return Err(InvalidOutputType(format!(
"Expected {} elements, got a list of {}: {:?}",
$num,
tokens.len(),
tokens
)));
}
let mut it = tokens.drain(..);
Ok(($(
$ty::from_token(it.next().expect("All elements are in vector; qed"))?,
)+))
}
}
}
}
impl_output!(1, A,);
impl_output!(2, A, B,);
impl_output!(3, A, B, C,);
impl_output!(4, A, B, C, D,);
impl_output!(5, A, B, C, D, E,);
impl_output!(6, A, B, C, D, E, F,);
impl_output!(7, A, B, C, D, E, F, G,);
impl_output!(8, A, B, C, D, E, F, G, H,);
impl_output!(9, A, B, C, D, E, F, G, H, I,);
impl_output!(10, A, B, C, D, E, F, G, H, I, J,);
impl_output!(11, A, B, C, D, E, F, G, H, I, J, K,);
impl_output!(12, A, B, C, D, E, F, G, H, I, J, K, L,);
impl_output!(13, A, B, C, D, E, F, G, H, I, J, K, L, M,);
impl_output!(14, A, B, C, D, E, F, G, H, I, J, K, L, M, N,);
impl_output!(15, A, B, C, D, E, F, G, H, I, J, K, L, M, N, O,);
impl_output!(16, A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P,);
/// Tokens conversion trait
pub trait Tokenize {
/// Convert to list of tokens
@ -114,39 +72,6 @@ impl Tokenize for () {
}
}
macro_rules! impl_tokens {
($( $ty: ident : $no: tt, )+) => {
impl<$($ty, )+> Tokenize for ($($ty,)+) where
$(
$ty: Tokenizable,
)+
{
fn into_tokens(self) -> Vec<Token> {
vec![
$( self.$no.into_token(), )+
]
}
}
}
}
impl_tokens!(A:0, );
impl_tokens!(A:0, B:1, );
impl_tokens!(A:0, B:1, C:2, );
impl_tokens!(A:0, B:1, C:2, D:3, );
impl_tokens!(A:0, B:1, C:2, D:3, E:4, );
impl_tokens!(A:0, B:1, C:2, D:3, E:4, F:5, );
impl_tokens!(A:0, B:1, C:2, D:3, E:4, F:5, G:6, );
impl_tokens!(A:0, B:1, C:2, D:3, E:4, F:5, G:6, H:7, );
impl_tokens!(A:0, B:1, C:2, D:3, E:4, F:5, G:6, H:7, I:8, );
impl_tokens!(A:0, B:1, C:2, D:3, E:4, F:5, G:6, H:7, I:8, J:9, );
impl_tokens!(A:0, B:1, C:2, D:3, E:4, F:5, G:6, H:7, I:8, J:9, K:10, );
impl_tokens!(A:0, B:1, C:2, D:3, E:4, F:5, G:6, H:7, I:8, J:9, K:10, L:11, );
impl_tokens!(A:0, B:1, C:2, D:3, E:4, F:5, G:6, H:7, I:8, J:9, K:10, L:11, M:12, );
impl_tokens!(A:0, B:1, C:2, D:3, E:4, F:5, G:6, H:7, I:8, J:9, K:10, L:11, M:12, N:13, );
impl_tokens!(A:0, B:1, C:2, D:3, E:4, F:5, G:6, H:7, I:8, J:9, K:10, L:11, M:12, N:13, O:14, );
impl_tokens!(A:0, B:1, C:2, D:3, E:4, F:5, G:6, H:7, I:8, J:9, K:10, L:11, M:12, N:13, O:14, P:15, );
/// Simplified output type for single value.
pub trait Tokenizable {
/// Converts a `Token` into expected type.
@ -157,6 +82,54 @@ pub trait Tokenizable {
fn into_token(self) -> Token;
}
macro_rules! impl_tuples {
($num: expr, $( $ty: ident : $no: tt, )+) => {
impl<$($ty, )+> Tokenizable for ($($ty,)+) where
$(
$ty: Tokenizable,
)+
{
fn from_token(token: Token) -> Result<Self, InvalidOutputType> {
match token {
Token::Tuple(mut tokens) => {
let mut it = tokens.drain(..);
Ok(($(
$ty::from_token(it.next().expect("All elements are in vector; qed"))?,
)+))
},
other => Err(InvalidOutputType(format!(
"Expected `Tuple`, got {:?}",
other,
))),
}
}
fn into_token(self) -> Token {
Token::Tuple(vec![
$( self.$no.into_token(), )+
])
}
}
}
}
impl_tuples!(1, A:0, );
impl_tuples!(2, A:0, B:1, );
impl_tuples!(3, A:0, B:1, C:2, );
impl_tuples!(4, A:0, B:1, C:2, D:3, );
impl_tuples!(5, A:0, B:1, C:2, D:3, E:4, );
impl_tuples!(6, A:0, B:1, C:2, D:3, E:4, F:5, );
impl_tuples!(7, A:0, B:1, C:2, D:3, E:4, F:5, G:6, );
impl_tuples!(8, A:0, B:1, C:2, D:3, E:4, F:5, G:6, H:7, );
impl_tuples!(9, A:0, B:1, C:2, D:3, E:4, F:5, G:6, H:7, I:8, );
impl_tuples!(10, A:0, B:1, C:2, D:3, E:4, F:5, G:6, H:7, I:8, J:9, );
impl_tuples!(11, A:0, B:1, C:2, D:3, E:4, F:5, G:6, H:7, I:8, J:9, K:10, );
impl_tuples!(12, A:0, B:1, C:2, D:3, E:4, F:5, G:6, H:7, I:8, J:9, K:10, L:11, );
impl_tuples!(13, A:0, B:1, C:2, D:3, E:4, F:5, G:6, H:7, I:8, J:9, K:10, L:11, M:12, );
impl_tuples!(14, A:0, B:1, C:2, D:3, E:4, F:5, G:6, H:7, I:8, J:9, K:10, L:11, M:12, N:13, );
impl_tuples!(15, A:0, B:1, C:2, D:3, E:4, F:5, G:6, H:7, I:8, J:9, K:10, L:11, M:12, N:13, O:14, );
impl_tuples!(16, A:0, B:1, C:2, D:3, E:4, F:5, G:6, H:7, I:8, J:9, K:10, L:11, M:12, N:13, O:14, P:15, );
impl Tokenizable for Token {
fn from_token(token: Token) -> Result<Self, InvalidOutputType> {
Ok(token)
@ -339,6 +312,33 @@ tokenizable_item! {
i8, i16, i32, i64, i128, u16, u32, u64, u128,
}
macro_rules! impl_tokenizable_item_tuple {
($( $ty: ident , )+) => {
impl<$($ty, )+> TokenizableItem for ($($ty,)+) where
$(
$ty: Tokenizable,
)+
{}
}
}
impl_tokenizable_item_tuple!(A,);
impl_tokenizable_item_tuple!(A, B,);
impl_tokenizable_item_tuple!(A, B, C,);
impl_tokenizable_item_tuple!(A, B, C, D,);
impl_tokenizable_item_tuple!(A, B, C, D, E,);
impl_tokenizable_item_tuple!(A, B, C, D, E, F,);
impl_tokenizable_item_tuple!(A, B, C, D, E, F, G,);
impl_tokenizable_item_tuple!(A, B, C, D, E, F, G, H,);
impl_tokenizable_item_tuple!(A, B, C, D, E, F, G, H, I,);
impl_tokenizable_item_tuple!(A, B, C, D, E, F, G, H, I, J,);
impl_tokenizable_item_tuple!(A, B, C, D, E, F, G, H, I, J, K,);
impl_tokenizable_item_tuple!(A, B, C, D, E, F, G, H, I, J, K, L,);
impl_tokenizable_item_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M,);
impl_tokenizable_item_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M, N,);
impl_tokenizable_item_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O,);
impl_tokenizable_item_tuple!(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P,);
impl Tokenizable for Vec<u8> {
fn from_token(token: Token) -> Result<Self, InvalidOutputType> {
match token {
@ -505,6 +505,10 @@ mod tests {
let _ints: (i16, i32, i64, i128) = output();
let _uints: (u16, u32, u64, u128) = output();
let _tuple: (Address, Vec<Vec<u8>>) = output();
let _vec_of_tuple: Vec<(Address, String)> = output();
let _vec_of_tuple_5: Vec<(Address, Vec<Vec<u8>>, String, U256, bool)> = output();
}
#[test]

10
ethers/tests/major_contracts.rs
View File

@ -30,8 +30,8 @@ abigen!(
}
);
// // Abi Encoder v2 is still buggy
// abigen!(
// DyDxLimitOrders,
// "etherscan:0xDEf136D9884528e1EB302f39457af0E4d3AD24EB"
// );
// The DyDxLimitOrders contract uses Abi Encoder v2 with nested tuples
abigen!(
DyDxLimitOrders,
"etherscan:0xDEf136D9884528e1EB302f39457af0E4d3AD24EB"
);