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Add Dex pallet (#407)

Browse source 
* Move pallet-asset-conversion

* update licensing

* initial integration

* Integrate Currency & Assets types

* integrate liquidity tokens

* fmt

* integrate dex pallet tests

* fmt

* compilation error fixes

* integrate dex benchmarks

* fmt

* cargo clippy

* replace all occurrences of "asset" with "coin"

* add the actual add liq/swap logic to in-instructions

* add client side & tests

* fix deny

* Lint and changes

- Renames InInstruction::AddLiquidity to InInstruction::SwapAndAddLiquidity
- Makes create_pool an internal function
- Makes dex-pallet exclusively create pools against a native coin
- Removes various fees
- Adds new crates to GH workflow

* Fix rebase artifacts

* Correct other rebase artifact

* Correct CI specification for liquidity-tokens

* Correct primitives' test to the standardized pallet account scheme

---------

Co-authored-by: Luke Parker <lukeparker5132@gmail.com>
This commit is contained in:
akildemir 2023-11-05 20:02:34 +03:00 committed by GitHub
parent facb5817c4
commit 899a9604e1
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GPG key ID: 4AEE18F83AFDEB23
38 changed files with 5327 additions and 27 deletions
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3
.github/workflows/tests.yml vendored
View file

@ -62,6 +62,9 @@ jobs:
-p serai-primitives \
-p serai-coins-primitives \
-p serai-coins-pallet \
-p serai-liquidity-tokens-pallet \
-p serai-dex-primitives \
-p serai-dex-pallet \
-p serai-validator-sets-primitives \
-p serai-validator-sets-pallet \
-p serai-in-instructions-primitives \

54
Cargo.lock generated
View file

@ -8179,6 +8179,7 @@ dependencies = [
"parity-scale-codec",
"scale-info",
"serai-coins-primitives",
"serai-dex-primitives",
"serai-primitives",
"sp-core",
"sp-runtime",
@ -8259,6 +8260,40 @@ dependencies = [
"rocksdb",
]
[[package]]
name = "serai-dex-pallet"
version = "0.1.0"
dependencies = [
"frame-benchmarking",
"frame-support",
"frame-system",
"parity-scale-codec",
"scale-info",
"serai-coins-pallet",
"serai-dex-primitives",
"serai-liquidity-tokens-pallet",
"serai-primitives",
"sp-api",
"sp-arithmetic",
"sp-core",
"sp-io",
"sp-runtime",
"sp-std",
]
[[package]]
name = "serai-dex-primitives"
version = "0.1.0"
dependencies = [
"frame-benchmarking",
"frame-support",
"parity-scale-codec",
"scale-info",
"serai-primitives",
"sp-runtime",
"sp-std",
]
[[package]]
name = "serai-docker-tests"
version = "0.1.0"
@ -8301,6 +8336,7 @@ dependencies = [
"parity-scale-codec",
"scale-info",
"serai-coins-pallet",
"serai-dex-pallet",
"serai-in-instructions-primitives",
"serai-primitives",
"serai-validator-sets-pallet",
@ -8308,6 +8344,7 @@ dependencies = [
"sp-core",
"sp-io",
"sp-runtime",
"sp-std",
"thiserror",
]
@ -8326,6 +8363,20 @@ dependencies = [
"zeroize",
]
[[package]]
name = "serai-liquidity-tokens-pallet"
version = "0.1.0"
dependencies = [
"frame-support",
"frame-system",
"parity-scale-codec",
"scale-info",
"serai-dex-primitives",
"serai-primitives",
"sp-core",
"sp-std",
]
[[package]]
name = "serai-message-queue"
version = "0.1.0"
@ -8543,7 +8594,10 @@ dependencies = [
"parity-scale-codec",
"scale-info",
"serai-coins-pallet",
"serai-dex-pallet",
"serai-dex-primitives",
"serai-in-instructions-pallet",
"serai-liquidity-tokens-pallet",
"serai-primitives",
"serai-signals-pallet",
"serai-validator-sets-pallet",

3
deny.toml
View file

@ -55,6 +55,9 @@ exceptions = [
{ allow = ["AGPL-3.0"], name = "serai-coordinator" },
{ allow = ["AGPL-3.0"], name = "serai-coins-pallet" },
{ allow = ["AGPL-3.0"], name = "serai-liquidity-tokens-pallet" },
{ allow = ["AGPL-3.0"], name = "serai-dex-primitives" },
{ allow = ["AGPL-3.0"], name = "serai-dex-pallet" },
{ allow = ["AGPL-3.0"], name = "serai-in-instructions-pallet" },

2
processor/src/tests/substrate_signer.rs
View file

@ -42,7 +42,7 @@ async fn test_substrate_signer() {
balance: Balance { coin: Coin::Bitcoin, amount: Amount(1000) },
},
InInstructionWithBalance {
instruction: InInstruction::Dex(Data::new(vec![0xcc; 128]).unwrap()),
instruction: InInstruction::Dex(DexCall::SwapAndAddLiquidity(SeraiAddress([0xbb; 32]))),
balance: Balance { coin: Coin::Monero, amount: Amount(9999999999999999) },
},
],

71
substrate/client/src/serai/dex.rs Normal file
View file

@ -0,0 +1,71 @@
use sp_core::bounded_vec::BoundedVec;
use serai_runtime::{
primitives::{SeraiAddress, Amount, Coin},
dex, Dex, Runtime,
};
use subxt::tx::Payload;
use crate::{SeraiError, Composite, TemporalSerai, scale_composite};
const PALLET: &str = "Dex";
pub type DexEvent = dex::Event<Runtime>;
#[derive(Clone, Copy)]
pub struct SeraiDex<'a>(pub(crate) TemporalSerai<'a>);
impl<'a> SeraiDex<'a> {
pub async fn all_events(&self) -> Result<Vec<DexEvent>, SeraiError> {
self.0.events::<Dex, _>(|_| true).await
}
pub fn add_liquidity(
coin: Coin,
coin_amount: Amount,
sri_amount: Amount,
min_coin_amount: Amount,
min_sri_amount: Amount,
address: SeraiAddress,
) -> Payload<Composite<()>> {
Payload::new(
PALLET,
"add_liquidity",
scale_composite(dex::Call::<Runtime>::add_liquidity {
coin1: coin,
coin2: Coin::Serai,
amount1_desired: coin_amount.0,
amount2_desired: sri_amount.0,
amount1_min: min_coin_amount.0,
amount2_min: min_sri_amount.0,
mint_to: address.into(),
}),
)
}
pub fn swap(
from_coin: Coin,
to_coin: Coin,
amount_in: Amount,
amount_out_min: Amount,
address: SeraiAddress,
) -> Payload<Composite<()>> {
let path = if to_coin.is_native() {
BoundedVec::try_from(vec![from_coin, Coin::Serai]).unwrap()
} else if from_coin.is_native() {
BoundedVec::try_from(vec![Coin::Serai, to_coin]).unwrap()
} else {
BoundedVec::try_from(vec![from_coin, Coin::Serai, to_coin]).unwrap()
};
Payload::new(
PALLET,
"swap_exact_tokens_for_tokens",
scale_composite(dex::Call::<Runtime>::swap_exact_tokens_for_tokens {
path,
amount_in: amount_in.0,
amount_out_min: amount_out_min.0,
send_to: address.into(),
}),
)
}
}

6
substrate/client/src/serai/mod.rs
View file

@ -35,6 +35,8 @@ use serai_runtime::{
pub mod coins;
pub use coins::SeraiCoins;
pub mod dex;
pub use dex::SeraiDex;
pub mod in_instructions;
pub use in_instructions::SeraiInInstructions;
pub mod validator_sets;
@ -347,6 +349,10 @@ impl<'a> TemporalSerai<'a> {
SeraiCoins(self)
}
pub fn dex(self) -> SeraiDex<'a> {
SeraiDex(self)
}
pub fn in_instructions(self) -> SeraiInInstructions<'a> {
SeraiInInstructions(self)
}

55
substrate/client/tests/common/dex.rs Normal file
View file

@ -0,0 +1,55 @@
use serai_runtime::primitives::{Coin, Amount};
use serai_client::{Serai, SeraiDex, PairSigner};
use sp_core::{sr25519::Pair, Pair as PairTrait};
use subxt::config::extrinsic_params::BaseExtrinsicParamsBuilder;
use crate::common::tx::publish_tx;
#[allow(dead_code)]
pub async fn add_liquidity(
serai: &Serai,
coin: Coin,
coin_amount: Amount,
sri_amount: Amount,
nonce: u32,
pair: Pair,
) -> [u8; 32] {
let address = pair.public();
let tx = serai
.sign(
&PairSigner::new(pair),
&SeraiDex::add_liquidity(coin, coin_amount, sri_amount, Amount(1), Amount(1), address.into()),
nonce,
BaseExtrinsicParamsBuilder::new(),
)
.unwrap();
publish_tx(serai, &tx).await
}
#[allow(dead_code)]
pub async fn swap(
serai: &Serai,
from_coin: Coin,
to_coin: Coin,
amount_in: Amount,
amount_out_min: Amount,
nonce: u32,
pair: Pair,
) -> [u8; 32] {
let address = pair.public();
let tx = serai
.sign(
&PairSigner::new(pair),
&SeraiDex::swap(from_coin, to_coin, amount_in, amount_out_min, address.into()),
nonce,
BaseExtrinsicParamsBuilder::new(),
)
.unwrap();
publish_tx(serai, &tx).await
}

29
substrate/client/tests/common/in_instructions.rs
View file

@ -1,3 +1,4 @@
use rand_core::{RngCore, OsRng};
use blake2::{
digest::{consts::U32, Digest},
Blake2b,
@ -8,10 +9,10 @@ use scale::Encode;
use sp_core::Pair;
use serai_client::{
primitives::insecure_pair_from_name,
primitives::{insecure_pair_from_name, BlockHash, NetworkId, Balance, SeraiAddress},
validator_sets::primitives::{Session, ValidatorSet},
in_instructions::{
primitives::{Batch, SignedBatch, batch_message},
primitives::{Batch, SignedBatch, batch_message, InInstruction, InInstructionWithBalance},
InInstructionsEvent,
},
SeraiInInstructions, Serai,
@ -60,3 +61,27 @@ pub async fn provide_batch(serai: &Serai, batch: Batch) -> [u8; 32] {
block
}
#[allow(dead_code)]
pub async fn mint_coin(
serai: &Serai,
balance: Balance,
network: NetworkId,
batch_id: u32,
address: SeraiAddress,
) -> [u8; 32] {
let mut block_hash = BlockHash([0; 32]);
OsRng.fill_bytes(&mut block_hash.0);
let batch = Batch {
network,
id: batch_id,
block: block_hash,
instructions: vec![InInstructionWithBalance {
instruction: InInstruction::Transfer(address),
balance,
}],
};
provide_batch(serai, batch).await
}

1
substrate/client/tests/common/mod.rs
View file

@ -1,6 +1,7 @@
pub mod tx;
pub mod validator_sets;
pub mod in_instructions;
pub mod dex;
#[macro_export]
macro_rules! serai_test {

452
substrate/client/tests/dex.rs Normal file
View file

@ -0,0 +1,452 @@
use rand_core::{RngCore, OsRng};
use scale::Encode;
use sp_core::{Pair as PairTrait, bounded_vec::BoundedVec, hashing::blake2_256};
use serai_runtime::in_instructions::primitives::DexCall;
use serai_client::{
primitives::{
Amount, NetworkId, Coin, Balance, BlockHash, insecure_pair_from_name, ExternalAddress,
SeraiAddress, PublicKey,
},
in_instructions::primitives::{
InInstruction, InInstructionWithBalance, Batch, IN_INSTRUCTION_EXECUTOR, OutAddress,
},
dex::DexEvent,
Serai,
};
mod common;
use common::{
in_instructions::{provide_batch, mint_coin},
dex::{add_liquidity as common_add_liquidity, swap as common_swap},
};
// TODO: Calculate all constants in the following tests
// TODO: Check LP token, coin balances
// TODO: Modularize common code
// TODO: Check Transfer events
serai_test!(
create_pool: (|serai: Serai| async move {
let block = serai.block_by_number(0).await.unwrap().unwrap().hash();
let events = serai.as_of(block).dex().all_events().await.unwrap();
assert_eq!(
events,
vec![
DexEvent::PoolCreated {
pool_id: (Coin::Serai, Coin::Bitcoin),
pool_account: PublicKey::from_raw(blake2_256(&(Coin::Serai, Coin::Bitcoin).encode())),
lp_token: 0,
},
DexEvent::PoolCreated {
pool_id: (Coin::Serai, Coin::Ether),
pool_account: PublicKey::from_raw(blake2_256(&(Coin::Serai, Coin::Ether).encode())),
lp_token: 1,
},
DexEvent::PoolCreated {
pool_id: (Coin::Serai, Coin::Dai),
pool_account: PublicKey::from_raw(blake2_256(&(Coin::Serai, Coin::Dai).encode())),
lp_token: 2,
},
DexEvent::PoolCreated {
pool_id: (Coin::Serai, Coin::Monero),
pool_account: PublicKey::from_raw(blake2_256(&(Coin::Serai, Coin::Monero).encode())),
lp_token: 3,
},
]
);
})
add_liquidity: (|serai: Serai| async move {
let coin = Coin::Monero;
let pair = insecure_pair_from_name("Ferdie");
// mint sriXMR in the account so that we can add liq.
// Ferdie account is already pre-funded with SRI.
mint_coin(
&serai,
Balance { coin, amount: Amount(100_000_000_000_000) },
NetworkId::Monero,
0,
pair.clone().public().into(),
)
.await;
// add liquidity
let coin_amount = Amount(50_000_000_000_000);
let sri_amount = Amount(50_000_000_000_000);
let block = common_add_liquidity(&serai,
coin,
coin_amount,
sri_amount,
0,
pair.clone()
).await;
// get only the add liq events
let mut events = serai.as_of(block).dex().all_events().await.unwrap();
events.retain(|e| matches!(e, DexEvent::LiquidityAdded { .. }));
assert_eq!(
events,
vec![DexEvent::LiquidityAdded {
who: pair.public(),
mint_to: pair.public(),
pool_id: (Coin::Serai, Coin::Monero),
amount1_provided: coin_amount.0,
amount2_provided: sri_amount.0,
lp_token: 3,
lp_token_minted: 49_999999990000
}]
);
})
// Tests coin -> SRI and SRI -> coin swaps.
swap_coin_to_sri: (|serai: Serai| async move {
let coin = Coin::Ether;
let pair = insecure_pair_from_name("Ferdie");
// mint sriXMR in the account so that we can add liq.
// Ferdie account is already pre-funded with SRI.
mint_coin(
&serai,
Balance { coin, amount: Amount(100_000_000_000_000) },
NetworkId::Ethereum,
0,
pair.clone().public().into(),
)
.await;
// add liquidity
common_add_liquidity(&serai,
coin,
Amount(50_000_000_000_000),
Amount(50_000_000_000_000),
0,
pair.clone()
).await;
// now that we have our liquid pool, swap some coin to SRI.
let mut amount_in = Amount(25_000_000_000_000);
let mut block = common_swap(&serai, coin, Coin::Serai, amount_in, Amount(1), 1, pair.clone())
.await;
// get only the swap events
let mut events = serai.as_of(block).dex().all_events().await.unwrap();
events.retain(|e| matches!(e, DexEvent::SwapExecuted { .. }));
let mut path = BoundedVec::try_from(vec![coin, Coin::Serai]).unwrap();
assert_eq!(
events,
vec![DexEvent::SwapExecuted {
who: pair.clone().public(),
send_to: pair.public(),
path,
amount_in: amount_in.0,
amount_out: 16633299966633
}]
);
// now swap some SRI to coin
amount_in = Amount(10_000_000_000_000);
block = common_swap(&serai, Coin::Serai, coin, amount_in, Amount(1), 2, pair.clone()).await;
// get only the swap events
let mut events = serai.as_of(block).dex().all_events().await.unwrap();
events.retain(|e| matches!(e, DexEvent::SwapExecuted { .. }));
path = BoundedVec::try_from(vec![Coin::Serai, coin]).unwrap();
assert_eq!(
events,
vec![DexEvent::SwapExecuted {
who: pair.clone().public(),
send_to: pair.public(),
path,
amount_in: amount_in.0,
amount_out: 17254428681101
}]
);
})
swap_coin_to_coin: (|serai: Serai| async move {
let coin1 = Coin::Monero;
let coin2 = Coin::Dai;
let pair = insecure_pair_from_name("Ferdie");
// mint coins
mint_coin(
&serai,
Balance { coin: coin1, amount: Amount(100_000_000_000_000) },
NetworkId::Monero,
0,
pair.clone().public().into(),
)
.await;
mint_coin(
&serai,
Balance { coin: coin2, amount: Amount(100_000_000_000_000) },
NetworkId::Ethereum,
0,
pair.clone().public().into(),
)
.await;
// add liquidity to pools
common_add_liquidity(&serai,
coin1,
Amount(50_000_000_000_000),
Amount(50_000_000_000_000),
0,
pair.clone()
).await;
common_add_liquidity(&serai,
coin2,
Amount(50_000_000_000_000),
Amount(50_000_000_000_000),
1,
pair.clone()
).await;
// swap coin1 -> coin2
let amount_in = Amount(25_000_000_000_000);
let block = common_swap(&serai, coin1, coin2, amount_in, Amount(1), 2, pair.clone()).await;
// get only the swap events
let mut events = serai.as_of(block).dex().all_events().await.unwrap();
events.retain(|e| matches!(e, DexEvent::SwapExecuted { .. }));
let path = BoundedVec::try_from(vec![coin1, Coin::Serai, coin2]).unwrap();
assert_eq!(
events,
vec![DexEvent::SwapExecuted {
who: pair.clone().public(),
send_to: pair.public(),
path,
amount_in: amount_in.0,
amount_out: 12453103964435,
}]
);
})
add_liquidity_in_instructions: (|serai: Serai| async move {
let coin = Coin::Bitcoin;
let pair = insecure_pair_from_name("Ferdie");
let mut batch_id = 0;
// mint sriBTC in the account so that we can add liq.
// Ferdie account is already pre-funded with SRI.
mint_coin(
&serai,
Balance { coin, amount: Amount(100_000_000_000_000) },
NetworkId::Bitcoin,
batch_id,
pair.clone().public().into(),
)
.await;
batch_id += 1;
// add liquidity
common_add_liquidity(&serai,
coin,
Amount(50_000_000_000_000),
Amount(50_000_000_000_000),
0,
pair.clone()
).await;
// now that we have our liquid SRI/BTC pool, we can add more liquidity to it via an
// InInstruction
let mut block_hash = BlockHash([0; 32]);
OsRng.fill_bytes(&mut block_hash.0);
let batch = Batch {
network: NetworkId::Bitcoin,
id: batch_id,
block: block_hash,
instructions: vec![InInstructionWithBalance {
instruction: InInstruction::Dex(DexCall::SwapAndAddLiquidity(pair.public().into())),
balance: Balance { coin: Coin::Bitcoin, amount: Amount(20_000_000_000_000) },
}],
};
let block = provide_batch(&serai, batch).await;
let mut events = serai.as_of(block).dex().all_events().await.unwrap();
events.retain(|e| matches!(e, DexEvent::LiquidityAdded { .. }));
assert_eq!(
events,
vec![DexEvent::LiquidityAdded {
who: IN_INSTRUCTION_EXECUTOR.into(),
mint_to: pair.public(),
pool_id: (Coin::Serai, Coin::Bitcoin),
amount1_provided: 6_947_918_403_646,
amount2_provided: 10_000_000_000_000, // half of sent amount
lp_token: 0,
lp_token_minted: 8333333333332
}]
);
})
swap_in_instructions: (|serai: Serai| async move {
let coin1 = Coin::Monero;
let coin2 = Coin::Ether;
let pair = insecure_pair_from_name("Ferdie");
let mut coin1_batch_id = 0;
let mut coin2_batch_id = 0;
// mint coins
mint_coin(
&serai,
Balance { coin: coin1, amount: Amount(100_000_000_000_000) },
NetworkId::Monero,
coin1_batch_id,
pair.clone().public().into(),
)
.await;
coin1_batch_id += 1;
mint_coin(
&serai,
Balance { coin: coin2, amount: Amount(100_000_000_000_000) },
NetworkId::Ethereum,
coin2_batch_id,
pair.clone().public().into(),
)
.await;
coin2_batch_id += 1;
// add liquidity to pools
common_add_liquidity(&serai,
coin1,
Amount(50_000_000_000_000),
Amount(50_000_000_000_000),
0,
pair.clone()
).await;
common_add_liquidity(&serai,
coin2,
Amount(50_000_000_000_000),
Amount(50_000_000_000_000),
1,
pair.clone()
).await;
// rand address bytes
let mut rand_bytes = vec![0; 32];
OsRng.fill_bytes(&mut rand_bytes);
// XMR -> ETH
{
// make an out address
let out_address = OutAddress::External(ExternalAddress::new(rand_bytes.clone()).unwrap());
// amount is the min out amount
let out_balance = Balance { coin: coin2, amount: Amount(1) };
// now that we have our pools, we can try to swap
let mut block_hash = BlockHash([0; 32]);
OsRng.fill_bytes(&mut block_hash.0);
let batch = Batch {
network: NetworkId::Monero,
id: coin1_batch_id,
block: block_hash,
instructions: vec![InInstructionWithBalance {
instruction: InInstruction::Dex(DexCall::Swap(out_balance, out_address)),
balance: Balance { coin: coin1, amount: Amount(20_000_000_000_000) },
}],
};
let block = provide_batch(&serai, batch).await;
coin1_batch_id += 1;
let mut events = serai.as_of(block).dex().all_events().await.unwrap();
events.retain(|e| matches!(e, DexEvent::SwapExecuted { .. }));
let path = BoundedVec::try_from(vec![coin1, Coin::Serai, coin2]).unwrap();
assert_eq!(
events,
vec![DexEvent::SwapExecuted {
who: IN_INSTRUCTION_EXECUTOR.into(),
send_to: IN_INSTRUCTION_EXECUTOR.into(),
path,
amount_in: 20_000_000_000_000,
amount_out: 11066655622377
}]
);
}
// ETH -> sriXMR
{
// make an out address
let out_address =
OutAddress::Serai(SeraiAddress::new(rand_bytes.clone().try_into().unwrap()));
// amount is the min out amount
let out_balance = Balance { coin: coin1, amount: Amount(1) };
// now that we have our pools, we can try to swap
let mut block_hash = BlockHash([0; 32]);
OsRng.fill_bytes(&mut block_hash.0);
let batch = Batch {
network: NetworkId::Ethereum,
id: coin2_batch_id,
block: block_hash,
instructions: vec![InInstructionWithBalance {
instruction: InInstruction::Dex(DexCall::Swap(out_balance, out_address.clone())),
balance: Balance { coin: coin2, amount: Amount(20_000_000_000_000) },
}],
};
let block = provide_batch(&serai, batch).await;
let mut events = serai.as_of(block).dex().all_events().await.unwrap();
events.retain(|e| matches!(e, DexEvent::SwapExecuted { .. }));
let path = BoundedVec::try_from(vec![coin2, Coin::Serai, coin1]).unwrap();
assert_eq!(
events,
vec![DexEvent::SwapExecuted {
who: IN_INSTRUCTION_EXECUTOR.into(),
send_to: out_address.as_native().unwrap().into(),
path,
amount_in: 20_000_000_000_000,
amount_out: 26440798801319
}]
);
}
// XMR -> SRI
{
// make an out address
let out_address = OutAddress::Serai(SeraiAddress::new(rand_bytes.try_into().unwrap()));
// amount is the min out amount
let out_balance = Balance { coin: Coin::Serai, amount: Amount(1) };
// now that we have our pools, we can try to swap
let mut block_hash = BlockHash([0; 32]);
OsRng.fill_bytes(&mut block_hash.0);
let batch = Batch {
network: NetworkId::Monero,
id: coin1_batch_id,
block: block_hash,
instructions: vec![InInstructionWithBalance {
instruction: InInstruction::Dex(DexCall::Swap(out_balance, out_address.clone())),
balance: Balance { coin: coin1, amount: Amount(10_000_000_000_000) },
}],
};
let block = provide_batch(&serai, batch).await;
let mut events = serai.as_of(block).dex().all_events().await.unwrap();
events.retain(|e| matches!(e, DexEvent::SwapExecuted { .. }));
let path = BoundedVec::try_from(vec![coin1, Coin::Serai]).unwrap();
assert_eq!(
events,
vec![DexEvent::SwapExecuted {
who: IN_INSTRUCTION_EXECUTOR.into(),
send_to: out_address.as_native().unwrap().into(),
path,
amount_in: 10_000_000_000_000,
amount_out: 10711005507065
}]
);
}
})
);

4
substrate/coins/pallet/Cargo.toml
View file

@ -24,6 +24,8 @@ sp-runtime = { git = "https://github.com/serai-dex/substrate", default-features
pallet-transaction-payment = { git = "https://github.com/serai-dex/substrate", default-features = false }
dex-primitives = { package = "serai-dex-primitives", path = "../../dex/primitives", default-features = false }
serai-primitives = { path = "../../primitives", default-features = false }
coins-primitives = { package = "serai-coins-primitives", path = "../primitives", default-features = false }
@ -38,6 +40,8 @@ std = [
"pallet-transaction-payment/std",
"dex-primitives/std",
"serai-primitives/std",
"coins-primitives/std",
]

79
substrate/coins/pallet/src/lib.rs
View file

@ -14,12 +14,14 @@ pub mod pallet {
use pallet_transaction_payment::{Config as TpConfig, OnChargeTransaction};
use dex_primitives::{Currency, Coins as CoinsTrait};
use serai_primitives::*;
pub use coins_primitives as primitives;
use primitives::*;
#[pallet::config]
pub trait Config: frame_system::Config<AccountId = Public> + TpConfig {
pub trait Config: frame_system::Config<AccountId = Public> {
type RuntimeEvent: From<Event<Self>> + IsType<<Self as frame_system::Config>::RuntimeEvent>;
}
@ -72,12 +74,13 @@ pub mod pallet {
impl<T: Config> BuildGenesisConfig for GenesisConfig<T> {
fn build(&self) {
// initialize the supply of the coins
for c in COINS.iter() {
// TODO: Don't use COINS yet GenesisConfig so we can safely expand COINS
for c in &COINS {
Supply::<T>::set(c, 0);
}
// initialize the genesis accounts
for (account, balance) in self.accounts.iter() {
for (account, balance) in &self.accounts {
Pallet::<T>::mint(*account, *balance).unwrap();
}
}
@ -214,7 +217,75 @@ pub mod pallet {
}
}
impl<T: Config> OnChargeTransaction<T> for Pallet<T> {
impl<T: Config> Currency<T::AccountId> for Pallet<T> {
type Balance = SubstrateAmount;
fn balance(of: &Public) -> Self::Balance {
Self::balance(*of, Coin::Serai).0
}
/// TODO: make sure of coin precision here.
fn minimum_balance() -> Self::Balance {
1
}
fn transfer(
from: &Public,
to: &Public,
amount: Self::Balance,
) -> Result<Self::Balance, DispatchError> {
let balance = Balance { coin: Coin::Serai, amount: Amount(amount) };
Self::transfer_internal(*from, *to, balance)?;
Ok(amount)
}
fn mint(to: &Public, amount: Self::Balance) -> Result<Self::Balance, DispatchError> {
Self::mint(*to, Balance { coin: Coin::native(), amount: Amount(amount) })?;
Ok(amount)
}
}
// TODO: Have DEX implement for Coins, not Coins implement for Coins
impl<T: Config> CoinsTrait<T::AccountId> for Pallet<T> {
type Balance = SubstrateAmount;
type CoinId = Coin;
// TODO: Swap the order of these arguments
fn balance(coin: Self::CoinId, of: &Public) -> Self::Balance {
Self::balance(*of, coin).0
}
fn minimum_balance(_: Self::CoinId) -> Self::Balance {
1
}
// TODO: Move coin next to amount
fn transfer(
coin: Self::CoinId,
from: &Public,
to: &Public,
amount: Self::Balance,
) -> Result<Self::Balance, DispatchError> {
let balance = Balance { coin, amount: Amount(amount) };
Self::transfer_internal(*from, *to, balance)?;
Ok(amount)
}
// TODO: Move coin next to amount
fn mint(
coin: Self::CoinId,
to: &Public,
amount: Self::Balance,
) -> Result<Self::Balance, DispatchError> {
Self::mint(*to, Balance { coin, amount: Amount(amount) })?;
Ok(amount)
}
}
impl<T: Config> OnChargeTransaction<T> for Pallet<T>
where
T: TpConfig,
{
type Balance = SubstrateAmount;
type LiquidityInfo = Option<SubstrateAmount>;

4
substrate/coins/primitives/src/lib.rs
View file

@ -12,7 +12,7 @@ use scale_info::TypeInfo;
use serai_primitives::{Balance, SeraiAddress, ExternalAddress, Data, system_address};
pub const FEE_ACCOUNT: SeraiAddress = system_address(b"FeeAccount");
pub const FEE_ACCOUNT: SeraiAddress = system_address(b"Coins-fees");
#[derive(
Clone, PartialEq, Eq, Debug, Serialize, Deserialize, Encode, Decode, MaxEncodedLen, TypeInfo,
@ -46,6 +46,6 @@ fn address() {
use sp_runtime::traits::TrailingZeroInput;
assert_eq!(
FEE_ACCOUNT,
SeraiAddress::decode(&mut TrailingZeroInput::new(b"FeeAccount")).unwrap()
SeraiAddress::decode(&mut TrailingZeroInput::new(b"Coins-fees")).unwrap()
);
}

75
substrate/dex/pallet/Cargo.toml Normal file
View file

@ -0,0 +1,75 @@
[package]
name = "serai-dex-pallet"
version = "0.1.0"
description = "DEX pallet for Serai"
license = "AGPL-3.0-only"
repository = "https://github.com/serai-dex/serai/tree/develop/substrate/dex/pallet"
authors = ["Parity Technologies <admin@parity.io>, Akil Demir <aeg_asd@hotmail.com>"]
edition = "2021"
[package.metadata.docs.rs]
all-features = true
rustdoc-args = ["--cfg", "docsrs"]
[dependencies]
codec = { package = "parity-scale-codec", version = "3.6.1", default-features = false }
scale-info = { version = "2.5.0", default-features = false, features = ["derive"] }
sp-std = { git = "https://github.com/serai-dex/substrate", default-features = false }
sp-arithmetic = { git = "https://github.com/serai-dex/substrate", default-features = false }
sp-io = { git = "https://github.com/serai-dex/substrate", default-features = false }
sp-api = { git = "https://github.com/serai-dex/substrate", default-features = false }
sp-runtime = { git = "https://github.com/serai-dex/substrate", default-features = false }
sp-core = { git = "https://github.com/serai-dex/substrate", default-features = false }
frame-system = { git = "https://github.com/serai-dex/substrate", default-features = false }
frame-support = { git = "https://github.com/serai-dex/substrate", default-features = false }
frame-benchmarking = { git = "https://github.com/serai-dex/substrate", default-features = false, optional = true }
dex-primitives = { package = "serai-dex-primitives", path = "../primitives", default-features = false }
[dev-dependencies]
serai-primitives = { path = "../../primitives", default-features = false }
coins-pallet = { package = "serai-coins-pallet", path = "../../coins/pallet", default-features = false }
liquidity-tokens-pallet = { package = "serai-liquidity-tokens-pallet", path = "../../liquidity-tokens/pallet", default-features = false }
[features]
default = ["std"]
std = [
"codec/std",
"scale-info/std",
"sp-std/std",
"sp-arithmetic/std",
"sp-io/std",
"sp-api/std",
"sp-runtime/std",
"sp-core/std",
"serai-primitives/std",
"dex-primitives/std",
"frame-system/std",
"frame-support/std",
"frame-benchmarking?/std",
"coins-pallet/std",
"liquidity-tokens-pallet/std",
]
runtime-benchmarks = [
"sp-runtime/runtime-benchmarks",
"frame-system/runtime-benchmarks",
"frame-support/runtime-benchmarks",
"frame-benchmarking/runtime-benchmarks",
"dex-primitives/runtime-benchmarks",
]
try-runtime = [
"sp-runtime/try-runtime",
"frame-system/try-runtime",
"frame-support/try-runtime",
]

15
substrate/dex/pallet/LICENSE-AGPL3 Normal file
View file

@ -0,0 +1,15 @@
AGPL-3.0-only license
Copyright (c) 2023 Luke Parker
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License Version 3 as
published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.

211
substrate/dex/pallet/LICENSE-APACHE2 Normal file
View file

@ -0,0 +1,211 @@
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271
substrate/dex/pallet/src/benchmarking.rs Normal file
View file

@ -0,0 +1,271 @@
// This file was originally:
// Copyright (C) Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: Apache-2.0
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// It has been forked into a crate distributed under the AGPL 3.0.
// Please check the current distribution for up-to-date copyright and licensing information.
//! Dex pallet benchmarking.
use super::*;
use frame_benchmarking::{benchmarks, whitelisted_caller};
use frame_support::{assert_ok, storage::bounded_vec::BoundedVec};
use frame_system::RawOrigin as SystemOrigin;
use sp_runtime::traits::{Bounded, StaticLookup};
use sp_std::{ops::Div, prelude::*};
use crate::Pallet as Dex;
const INITIAL_COIN_BALANCE: u64 = 1_000_000_000;
type AccountIdLookupOf<T> = <<T as frame_system::Config>::Lookup as StaticLookup>::Source;
type BalanceOf<T> =
<<T as Config>::Currency as Currency<<T as frame_system::Config>::AccountId>>::Balance;
fn get_lp_token_id<T: Config>() -> T::PoolCoinId
where
T::PoolCoinId: Into<u32>,
{
let next_id: u32 = Dex::<T>::get_next_pool_coin_id().into();
(next_id - 1).into()
}
fn create_coin<T: Config>(coin: &T::MultiCoinId) -> (T::AccountId, AccountIdLookupOf<T>)
where
T::CoinBalance: From<u64>,
T::Currency: Currency<T::AccountId>,
T::Coins: Coins<T::AccountId>,
{
let caller: T::AccountId = whitelisted_caller();
let caller_lookup = T::Lookup::unlookup(caller.clone());
if let MultiCoinIdConversionResult::Converted(coin_id) =
T::MultiCoinIdConverter::try_convert(coin)
{
assert_ok!(T::Currency::mint(&caller, BalanceOf::<T>::max_value().div(1000u32.into())));
assert_ok!(T::Coins::mint(coin_id, &caller, INITIAL_COIN_BALANCE.into()));
}
(caller, caller_lookup)
}
fn create_coin_and_pool<T: Config>(
coin1: &T::MultiCoinId,
coin2: &T::MultiCoinId,
) -> (T::PoolCoinId, T::AccountId, AccountIdLookupOf<T>)
where
T::CoinBalance: From<u64>,
T::Currency: Currency<T::AccountId>,
T::Coins: Coins<T::AccountId>,
T::PoolCoinId: Into<u32>,
{
assert_eq!(coin1, &T::MultiCoinIdConverter::get_native());
let (caller, caller_lookup) = create_coin::<T>(coin2);
assert_ok!(Dex::<T>::create_pool(coin2.clone()));
let lp_token = get_lp_token_id::<T>();
(lp_token, caller, caller_lookup)
}
benchmarks! {
where_clause {
where
T::CoinBalance: From<u64> + Into<u64>,
T::Currency: Currency<T::AccountId>,
T::Balance: From<u64> + Into<u64>,
T::Coins: Coins<T::AccountId>,
T::PoolCoinId: Into<u32>,
}
add_liquidity {
let coin1 = T::MultiCoinIdConverter::get_native();
let coin2: T::MultiCoinId = T::BenchmarkHelper::coin_id(0).into();
let (lp_token, caller, _) = create_coin_and_pool::<T>(&coin1, &coin2);
let ed: u64 = T::Currency::minimum_balance().into();
let add_amount = 1000 + ed;
}: _(
SystemOrigin::Signed(caller.clone()),
coin1.clone(),
coin2.clone(),
add_amount.into(),
1000.into(),
0.into(),
0.into(),
caller.clone()
)
verify {
let pool_id = (coin1.clone(), coin2.clone());
let lp_minted = Dex::<T>::calc_lp_amount_for_zero_supply(
&add_amount.into(),
&1000.into()
).unwrap().into();
assert_eq!(
T::PoolCoins::balance(lp_token, &caller),
lp_minted.into()
);
assert_eq!(
T::Currency::balance(&Dex::<T>::get_pool_account(&pool_id)),
add_amount.into()
);
assert_eq!(
T::Coins::balance(
T::BenchmarkHelper::coin_id(0),
&Dex::<T>::get_pool_account(&pool_id)
),
1000.into()
);
}
remove_liquidity {
let coin1 = T::MultiCoinIdConverter::get_native();
let coin2: T::MultiCoinId = T::BenchmarkHelper::coin_id(0).into();
let (lp_token, caller, _) = create_coin_and_pool::<T>(&coin1, &coin2);
let ed: u64 = T::Currency::minimum_balance().into();
let add_amount = 100 * ed;
let lp_minted = Dex::<T>::calc_lp_amount_for_zero_supply(
&add_amount.into(),
&1000.into()
).unwrap().into();
let remove_lp_amount = lp_minted.checked_div(10).unwrap();
Dex::<T>::add_liquidity(
SystemOrigin::Signed(caller.clone()).into(),
coin1.clone(),
coin2.clone(),
add_amount.into(),
1000.into(),
0.into(),
0.into(),
caller.clone(),
)?;
let total_supply =
<T::PoolCoins as LiquidityTokens<T::AccountId>>::total_issuance(lp_token.clone());
}: _(
SystemOrigin::Signed(caller.clone()),
coin1,
coin2,
remove_lp_amount.into(),
0.into(),
0.into(),
caller.clone()
)
verify {
let new_total_supply =
<T::PoolCoins as LiquidityTokens<T::AccountId>>::total_issuance(lp_token.clone());
assert_eq!(
new_total_supply,
total_supply - remove_lp_amount.into()
);
}
swap_exact_tokens_for_tokens {
let native = T::MultiCoinIdConverter::get_native();
let coin1: T::MultiCoinId = T::BenchmarkHelper::coin_id(1).into();
let coin2: T::MultiCoinId = T::BenchmarkHelper::coin_id(2).into();
let (_, caller, _) = create_coin_and_pool::<T>(&native, &coin1);
let (_, _) = create_coin::<T>(&coin2);
let ed: u64 = T::Currency::minimum_balance().into();
let ed_bump = 2u64;
Dex::<T>::add_liquidity(
SystemOrigin::Signed(caller.clone()).into(),
native.clone(),
coin1.clone(),
// TODO: this call otherwise fails with `InsufficientLiquidityMinted`.
// might be again related to their expectance on ed being > 1.
(100 * (ed + ed_bump)).into(),
200.into(),
0.into(),
0.into(),
caller.clone(),
)?;
let swap_amount = 100.into();
// since we only allow the native-coin pools, then the worst case scenario would be to swap
// coin1-native-coin2
Dex::<T>::create_pool(coin2.clone())?;
Dex::<T>::add_liquidity(
SystemOrigin::Signed(caller.clone()).into(),
native.clone(),
coin2.clone(),
(500 * ed).into(),
1000.into(),
0.into(),
0.into(),
caller.clone(),
)?;
let path = vec![coin1.clone(), native.clone(), coin2.clone()];
let path = BoundedVec::<_, T::MaxSwapPathLength>::try_from(path).unwrap();
let native_balance = T::Currency::balance(&caller);
let coin1_balance = T::Coins::balance(T::BenchmarkHelper::coin_id(1), &caller);
}: _(SystemOrigin::Signed(caller.clone()), path, swap_amount, 1.into(), caller.clone())
verify {
let ed_bump = 2u64;
let new_coin1_balance = T::Coins::balance(T::BenchmarkHelper::coin_id(1), &caller);
assert_eq!(new_coin1_balance, coin1_balance - 100.into());
}
swap_tokens_for_exact_tokens {
let native = T::MultiCoinIdConverter::get_native();
let coin1: T::MultiCoinId = T::BenchmarkHelper::coin_id(1).into();
let coin2: T::MultiCoinId = T::BenchmarkHelper::coin_id(2).into();
let (_, caller, _) = create_coin_and_pool::<T>(&native, &coin1);
let (_, _) = create_coin::<T>(&coin2);
let ed: u64 = T::Currency::minimum_balance().into();
Dex::<T>::add_liquidity(
SystemOrigin::Signed(caller.clone()).into(),
native.clone(),
coin1.clone(),
(1000 * ed).into(),
500.into(),
0.into(),
0.into(),
caller.clone(),
)?;
// since we only allow the native-coin pools, then the worst case scenario would be to swap
// coin1-native-coin2
Dex::<T>::create_pool(coin2.clone())?;
Dex::<T>::add_liquidity(
SystemOrigin::Signed(caller.clone()).into(),
native.clone(),
coin2.clone(),
(500 * ed).into(),
1000.into(),
0.into(),
0.into(),
caller.clone(),
)?;
let path = vec![coin1.clone(), native.clone(), coin2.clone()];
let path: BoundedVec<_, T::MaxSwapPathLength> = BoundedVec::try_from(path).unwrap();
let coin2_balance = T::Coins::balance(T::BenchmarkHelper::coin_id(2), &caller);
}: _(
SystemOrigin::Signed(caller.clone()),
path.clone(),
100.into(),
(1000 * ed).into(),
caller.clone()
)
verify {
let new_coin2_balance = T::Coins::balance(T::BenchmarkHelper::coin_id(2), &caller);
assert_eq!(new_coin2_balance, coin2_balance + 100.into());
}
impl_benchmark_test_suite!(Dex, crate::mock::new_test_ext(), crate::mock::Test);
}

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// This file was originally:
// Copyright (C) Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: Apache-2.0
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// It has been forked into a crate distributed under the AGPL 3.0.
// Please check the current distribution for up-to-date copyright and licensing information.
//! Test environment for Dex pallet.
use super::*;
use crate as dex;
use frame_support::{
construct_runtime,
traits::{ConstU32, ConstU64},
};
use sp_core::{H256, sr25519::Public};
use sp_runtime::{
traits::{BlakeTwo256, IdentityLookup},
BuildStorage,
};
use serai_primitives::{Coin, Balance, Amount, system_address};
pub use coins_pallet as coins;
pub use liquidity_tokens_pallet as liquidity_tokens;
type Block = frame_system::mocking::MockBlock<Test>;
construct_runtime!(
pub enum Test
{
System: frame_system,
CoinsPallet: coins,
LiquidityTokens: liquidity_tokens,
Dex: dex,
}
);
impl frame_system::Config for Test {
type BaseCallFilter = frame_support::traits::Everything;
type BlockWeights = ();
type BlockLength = ();
type RuntimeOrigin = RuntimeOrigin;
type RuntimeCall = RuntimeCall;
type Nonce = u64;
type Hash = H256;
type Hashing = BlakeTwo256;
type AccountId = Public;
type Lookup = IdentityLookup<Self::AccountId>;
type Block = Block;
type RuntimeEvent = RuntimeEvent;
type BlockHashCount = ConstU64<250>;
type DbWeight = ();
type Version = ();
type PalletInfo = PalletInfo;
type AccountData = ();
type OnNewAccount = ();
type OnKilledAccount = ();
type SystemWeightInfo = ();
type SS58Prefix = ();
type OnSetCode = ();
type MaxConsumers = ConstU32<16>;
}
impl coins::Config for Test {
type RuntimeEvent = RuntimeEvent;
}
impl liquidity_tokens::Config for Test {
type RuntimeEvent = RuntimeEvent;
}
pub struct CoinConverter;
impl MultiCoinIdConverter<Coin, Coin> for CoinConverter {
/// Returns the MultiCoinId representing the native currency of the chain.
fn get_native() -> Coin {
Coin::Serai
}
/// Returns true if the given MultiCoinId is the native currency.
fn is_native(coin: &Coin) -> bool {
coin.is_native()
}
/// If it's not native, returns the CoinId for the given MultiCoinId.
fn try_convert(coin: &Coin) -> MultiCoinIdConversionResult<Coin, Coin> {
if coin.is_native() {
MultiCoinIdConversionResult::Native
} else {
MultiCoinIdConversionResult::Converted(*coin)
}
}
}
impl Config for Test {
type RuntimeEvent = RuntimeEvent;
type Currency = CoinsPallet;
type CoinBalance = u64;
type CoinId = Coin;
type PoolCoinId = u32;
type Coins = CoinsPallet;
type PoolCoins = LiquidityTokens;
type WeightInfo = ();
type LPFee = ConstU32<3>; // means 0.3%
type MaxSwapPathLength = ConstU32<4>;
// 100 is good enough when the main currency has 12 decimals.
type MintMinLiquidity = ConstU64<100>;
type Balance = u64;
type HigherPrecisionBalance = u128;
type MultiCoinId = Coin;
type MultiCoinIdConverter = CoinConverter;
#[cfg(feature = "runtime-benchmarks")]
type BenchmarkHelper = ();
}
pub(crate) fn new_test_ext() -> sp_io::TestExternalities {
let mut t = frame_system::GenesisConfig::<Test>::default().build_storage().unwrap();
let accounts: Vec<Public> = vec![
system_address(b"account1").into(),
system_address(b"account2").into(),
system_address(b"account3").into(),
system_address(b"account4").into(),
];
coins::GenesisConfig::<Test> {
accounts: accounts
.into_iter()
.map(|a| (a, Balance { coin: Coin::Serai, amount: Amount(1 << 60) }))
.collect(),
}
.assimilate_storage(&mut t)
.unwrap();
let mut ext = sp_io::TestExternalities::new(t);
ext.execute_with(|| System::set_block_number(1));
ext
}

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// This file was originally:
// Copyright (C) Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: Apache-2.0
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// It has been forked into a crate distributed under the AGPL 3.0.
// Please check the current distribution for up-to-date copyright and licensing information.
//! Autogenerated weights for pallet_coin_conversion
//!
//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 4.0.0-dev
//! DATE: 2023-07-18, STEPS: `50`, REPEAT: `20`, LOW RANGE: `[]`, HIGH RANGE: `[]`
//! WORST CASE MAP SIZE: `1000000`
//! HOSTNAME: `runner-gghbxkbs-project-145-concurrent-0`, CPU: `Intel(R) Xeon(R) CPU @ 2.60GHz`
//! EXECUTION: ``, WASM-EXECUTION: `Compiled`, CHAIN: `Some("dev")`, DB CACHE: `1024`
// Executed Command:
// target/production/substrate
// benchmark
// pallet
// --steps=50
// --repeat=20
// --extrinsic=*
// --wasm-execution=compiled
// --heap-pages=4096
// --json-file=/builds/parity/mirrors/substrate/.git/.artifacts/bench.json
// --pallet=pallet_coin_conversion
// --chain=dev
// --header=./HEADER-APACHE2
// --output=./frame/coin-conversion/src/weights.rs
// --template=./.maintain/frame-weight-template.hbs
#![cfg_attr(rustfmt, rustfmt_skip)]
#![allow(unused_parens)]
#![allow(unused_imports)]
#![allow(missing_docs)]
use frame_support::{traits::Get, weights::{Weight, constants::RocksDbWeight}};
use core::marker::PhantomData;
/// Weight functions needed for pallet_coin_conversion.
pub trait WeightInfo {
fn create_pool() -> Weight;
fn add_liquidity() -> Weight;
fn remove_liquidity() -> Weight;
fn swap_exact_tokens_for_tokens() -> Weight;
fn swap_tokens_for_exact_tokens() -> Weight;
}
/// Weights for pallet_coin_conversion using the Substrate node and recommended hardware.
pub struct SubstrateWeight<T>(PhantomData<T>);
impl<T: frame_system::Config> WeightInfo for SubstrateWeight<T> {
/// Storage: `CoinConversion::Pools` (r:1 w:1)
/// Proof: `CoinConversion::Pools` (`max_values`: None, `max_size`: Some(30), added: 2505, mode: `MaxEncodedLen`)
/// Storage: `System::Account` (r:2 w:2)
/// Proof: `System::Account` (`max_values`: None, `max_size`: Some(128), added: 2603, mode: `MaxEncodedLen`)
/// Storage: `Coins::Account` (r:1 w:1)
/// Proof: `Coins::Account` (`max_values`: None, `max_size`: Some(134), added: 2609, mode: `MaxEncodedLen`)
/// Storage: `Coins::Coin` (r:1 w:1)
/// Proof: `Coins::Coin` (`max_values`: None, `max_size`: Some(210), added: 2685, mode: `MaxEncodedLen`)
/// Storage: `CoinConversion::NextPoolCoinId` (r:1 w:1)
/// Proof: `CoinConversion::NextPoolCoinId` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
/// Storage: `PoolCoins::Coin` (r:1 w:1)
/// Proof: `PoolCoins::Coin` (`max_values`: None, `max_size`: Some(210), added: 2685, mode: `MaxEncodedLen`)
/// Storage: `PoolCoins::Account` (r:1 w:1)
/// Proof: `PoolCoins::Account` (`max_values`: None, `max_size`: Some(134), added: 2609, mode: `MaxEncodedLen`)
fn create_pool() -> Weight {
// Proof Size summary in bytes:
// Measured: `729`
// Estimated: `6196`
// Minimum execution time: 131_688_000 picoseconds.
Weight::from_parts(134_092_000, 6196)
.saturating_add(T::DbWeight::get().reads(8_u64))
.saturating_add(T::DbWeight::get().writes(8_u64))
}
/// Storage: `CoinConversion::Pools` (r:1 w:0)
/// Proof: `CoinConversion::Pools` (`max_values`: None, `max_size`: Some(30), added: 2505, mode: `MaxEncodedLen`)
/// Storage: `System::Account` (r:1 w:1)
/// Proof: `System::Account` (`max_values`: None, `max_size`: Some(128), added: 2603, mode: `MaxEncodedLen`)
/// Storage: `Coins::Coin` (r:1 w:1)
/// Proof: `Coins::Coin` (`max_values`: None, `max_size`: Some(210), added: 2685, mode: `MaxEncodedLen`)
/// Storage: `Coins::Account` (r:2 w:2)
/// Proof: `Coins::Account` (`max_values`: None, `max_size`: Some(134), added: 2609, mode: `MaxEncodedLen`)
/// Storage: `PoolCoins::Coin` (r:1 w:1)
/// Proof: `PoolCoins::Coin` (`max_values`: None, `max_size`: Some(210), added: 2685, mode: `MaxEncodedLen`)
/// Storage: `PoolCoins::Account` (r:2 w:2)
/// Proof: `PoolCoins::Account` (`max_values`: None, `max_size`: Some(134), added: 2609, mode: `MaxEncodedLen`)
fn add_liquidity() -> Weight {
// Proof Size summary in bytes:
// Measured: `1382`
// Estimated: `6208`
// Minimum execution time: 157_310_000 picoseconds.
Weight::from_parts(161_547_000, 6208)
.saturating_add(T::DbWeight::get().reads(8_u64))
.saturating_add(T::DbWeight::get().writes(7_u64))
}
/// Storage: `CoinConversion::Pools` (r:1 w:0)
/// Proof: `CoinConversion::Pools` (`max_values`: None, `max_size`: Some(30), added: 2505, mode: `MaxEncodedLen`)
/// Storage: `System::Account` (r:1 w:1)
/// Proof: `System::Account` (`max_values`: None, `max_size`: Some(128), added: 2603, mode: `MaxEncodedLen`)
/// Storage: `Coins::Coin` (r:1 w:1)
/// Proof: `Coins::Coin` (`max_values`: None, `max_size`: Some(210), added: 2685, mode: `MaxEncodedLen`)
/// Storage: `Coins::Account` (r:2 w:2)
/// Proof: `Coins::Account` (`max_values`: None, `max_size`: Some(134), added: 2609, mode: `MaxEncodedLen`)
/// Storage: `PoolCoins::Coin` (r:1 w:1)
/// Proof: `PoolCoins::Coin` (`max_values`: None, `max_size`: Some(210), added: 2685, mode: `MaxEncodedLen`)
/// Storage: `PoolCoins::Account` (r:1 w:1)
/// Proof: `PoolCoins::Account` (`max_values`: None, `max_size`: Some(134), added: 2609, mode: `MaxEncodedLen`)
fn remove_liquidity() -> Weight {
// Proof Size summary in bytes:
// Measured: `1371`
// Estimated: `6208`
// Minimum execution time: 142_769_000 picoseconds.
Weight::from_parts(145_139_000, 6208)
.saturating_add(T::DbWeight::get().reads(7_u64))
.saturating_add(T::DbWeight::get().writes(6_u64))
}
/// Storage: `System::Account` (r:1 w:1)
/// Proof: `System::Account` (`max_values`: None, `max_size`: Some(128), added: 2603, mode: `MaxEncodedLen`)
/// Storage: `Coins::Coin` (r:3 w:3)
/// Proof: `Coins::Coin` (`max_values`: None, `max_size`: Some(210), added: 2685, mode: `MaxEncodedLen`)
/// Storage: `Coins::Account` (r:6 w:6)
/// Proof: `Coins::Account` (`max_values`: None, `max_size`: Some(134), added: 2609, mode: `MaxEncodedLen`)
fn swap_exact_tokens_for_tokens() -> Weight {
// Proof Size summary in bytes:
// Measured: `1738`
// Estimated: `16644`
// Minimum execution time: 213_186_000 picoseconds.
Weight::from_parts(217_471_000, 16644)
.saturating_add(T::DbWeight::get().reads(10_u64))
.saturating_add(T::DbWeight::get().writes(10_u64))
}
/// Storage: `Coins::Coin` (r:3 w:3)
/// Proof: `Coins::Coin` (`max_values`: None, `max_size`: Some(210), added: 2685, mode: `MaxEncodedLen`)
/// Storage: `Coins::Account` (r:6 w:6)
/// Proof: `Coins::Account` (`max_values`: None, `max_size`: Some(134), added: 2609, mode: `MaxEncodedLen`)
/// Storage: `System::Account` (r:1 w:1)
/// Proof: `System::Account` (`max_values`: None, `max_size`: Some(128), added: 2603, mode: `MaxEncodedLen`)
fn swap_tokens_for_exact_tokens() -> Weight {
// Proof Size summary in bytes:
// Measured: `1738`
// Estimated: `16644`
// Minimum execution time: 213_793_000 picoseconds.
Weight::from_parts(218_584_000, 16644)
.saturating_add(T::DbWeight::get().reads(10_u64))
.saturating_add(T::DbWeight::get().writes(10_u64))
}
}
// For backwards compatibility and tests.
impl WeightInfo for () {
/// Storage: `CoinConversion::Pools` (r:1 w:1)
/// Proof: `CoinConversion::Pools` (`max_values`: None, `max_size`: Some(30), added: 2505, mode: `MaxEncodedLen`)
/// Storage: `System::Account` (r:2 w:2)
/// Proof: `System::Account` (`max_values`: None, `max_size`: Some(128), added: 2603, mode: `MaxEncodedLen`)
/// Storage: `Coins::Account` (r:1 w:1)
/// Proof: `Coins::Account` (`max_values`: None, `max_size`: Some(134), added: 2609, mode: `MaxEncodedLen`)
/// Storage: `Coins::Coin` (r:1 w:1)
/// Proof: `Coins::Coin` (`max_values`: None, `max_size`: Some(210), added: 2685, mode: `MaxEncodedLen`)
/// Storage: `CoinConversion::NextPoolCoinId` (r:1 w:1)
/// Proof: `CoinConversion::NextPoolCoinId` (`max_values`: Some(1), `max_size`: Some(4), added: 499, mode: `MaxEncodedLen`)
/// Storage: `PoolCoins::Coin` (r:1 w:1)
/// Proof: `PoolCoins::Coin` (`max_values`: None, `max_size`: Some(210), added: 2685, mode: `MaxEncodedLen`)
/// Storage: `PoolCoins::Account` (r:1 w:1)
/// Proof: `PoolCoins::Account` (`max_values`: None, `max_size`: Some(134), added: 2609, mode: `MaxEncodedLen`)
fn create_pool() -> Weight {
// Proof Size summary in bytes:
// Measured: `729`
// Estimated: `6196`
// Minimum execution time: 131_688_000 picoseconds.
Weight::from_parts(134_092_000, 6196)
.saturating_add(RocksDbWeight::get().reads(8_u64))
.saturating_add(RocksDbWeight::get().writes(8_u64))
}
/// Storage: `CoinConversion::Pools` (r:1 w:0)
/// Proof: `CoinConversion::Pools` (`max_values`: None, `max_size`: Some(30), added: 2505, mode: `MaxEncodedLen`)
/// Storage: `System::Account` (r:1 w:1)
/// Proof: `System::Account` (`max_values`: None, `max_size`: Some(128), added: 2603, mode: `MaxEncodedLen`)
/// Storage: `Coins::Coin` (r:1 w:1)
/// Proof: `Coins::Coin` (`max_values`: None, `max_size`: Some(210), added: 2685, mode: `MaxEncodedLen`)
/// Storage: `Coins::Account` (r:2 w:2)
/// Proof: `Coins::Account` (`max_values`: None, `max_size`: Some(134), added: 2609, mode: `MaxEncodedLen`)
/// Storage: `PoolCoins::Coin` (r:1 w:1)
/// Proof: `PoolCoins::Coin` (`max_values`: None, `max_size`: Some(210), added: 2685, mode: `MaxEncodedLen`)
/// Storage: `PoolCoins::Account` (r:2 w:2)
/// Proof: `PoolCoins::Account` (`max_values`: None, `max_size`: Some(134), added: 2609, mode: `MaxEncodedLen`)
fn add_liquidity() -> Weight {
// Proof Size summary in bytes:
// Measured: `1382`
// Estimated: `6208`
// Minimum execution time: 157_310_000 picoseconds.
Weight::from_parts(161_547_000, 6208)
.saturating_add(RocksDbWeight::get().reads(8_u64))
.saturating_add(RocksDbWeight::get().writes(7_u64))
}
/// Storage: `CoinConversion::Pools` (r:1 w:0)
/// Proof: `CoinConversion::Pools` (`max_values`: None, `max_size`: Some(30), added: 2505, mode: `MaxEncodedLen`)
/// Storage: `System::Account` (r:1 w:1)
/// Proof: `System::Account` (`max_values`: None, `max_size`: Some(128), added: 2603, mode: `MaxEncodedLen`)
/// Storage: `Coins::Coin` (r:1 w:1)
/// Proof: `Coins::Coin` (`max_values`: None, `max_size`: Some(210), added: 2685, mode: `MaxEncodedLen`)
/// Storage: `Coins::Account` (r:2 w:2)
/// Proof: `Coins::Account` (`max_values`: None, `max_size`: Some(134), added: 2609, mode: `MaxEncodedLen`)
/// Storage: `PoolCoins::Coin` (r:1 w:1)
/// Proof: `PoolCoins::Coin` (`max_values`: None, `max_size`: Some(210), added: 2685, mode: `MaxEncodedLen`)
/// Storage: `PoolCoins::Account` (r:1 w:1)
/// Proof: `PoolCoins::Account` (`max_values`: None, `max_size`: Some(134), added: 2609, mode: `MaxEncodedLen`)
fn remove_liquidity() -> Weight {
// Proof Size summary in bytes:
// Measured: `1371`
// Estimated: `6208`
// Minimum execution time: 142_769_000 picoseconds.
Weight::from_parts(145_139_000, 6208)
.saturating_add(RocksDbWeight::get().reads(7_u64))
.saturating_add(RocksDbWeight::get().writes(6_u64))
}
/// Storage: `System::Account` (r:1 w:1)
/// Proof: `System::Account` (`max_values`: None, `max_size`: Some(128), added: 2603, mode: `MaxEncodedLen`)
/// Storage: `Coins::Coin` (r:3 w:3)
/// Proof: `Coins::Coin` (`max_values`: None, `max_size`: Some(210), added: 2685, mode: `MaxEncodedLen`)
/// Storage: `Coins::Account` (r:6 w:6)
/// Proof: `Coins::Account` (`max_values`: None, `max_size`: Some(134), added: 2609, mode: `MaxEncodedLen`)
fn swap_exact_tokens_for_tokens() -> Weight {
// Proof Size summary in bytes:
// Measured: `1738`
// Estimated: `16644`
// Minimum execution time: 213_186_000 picoseconds.
Weight::from_parts(217_471_000, 16644)
.saturating_add(RocksDbWeight::get().reads(10_u64))
.saturating_add(RocksDbWeight::get().writes(10_u64))
}
/// Storage: `Coins::Coin` (r:3 w:3)
/// Proof: `Coins::Coin` (`max_values`: None, `max_size`: Some(210), added: 2685, mode: `MaxEncodedLen`)
/// Storage: `Coins::Account` (r:6 w:6)
/// Proof: `Coins::Account` (`max_values`: None, `max_size`: Some(134), added: 2609, mode: `MaxEncodedLen`)
/// Storage: `System::Account` (r:1 w:1)
/// Proof: `System::Account` (`max_values`: None, `max_size`: Some(128), added: 2603, mode: `MaxEncodedLen`)
fn swap_tokens_for_exact_tokens() -> Weight {
// Proof Size summary in bytes:
// Measured: `1738`
// Estimated: `16644`
// Minimum execution time: 213_793_000 picoseconds.
Weight::from_parts(218_584_000, 16644)
.saturating_add(RocksDbWeight::get().reads(10_u64))
.saturating_add(RocksDbWeight::get().writes(10_u64))
}
}

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[package]
name = "serai-dex-primitives"
version = "0.1.0"
description = "Dex pallet primitives"
license = "AGPL-3.0-only"
repository = "https://github.com/serai-dex/serai/tree/develop/substrate/dex/primitives"
authors = ["Parity Technologies <admin@parity.io>, Akil Demir <aeg_asd@hotmail.com>"]
edition = "2021"
[package.metadata.docs.rs]
all-features = true
rustdoc-args = ["--cfg", "docsrs"]
targets = ["x86_64-unknown-linux-gnu"]
[dependencies]
codec = { package = "parity-scale-codec", version = "3.6.1", default-features = false }
scale-info = { version = "2.5.0", default-features = false, features = ["derive"] }
frame-support = { git = "https://github.com/serai-dex/substrate", default-features = false }
frame-benchmarking = { git = "https://github.com/serai-dex/substrate", default-features = false, optional = true }
sp-runtime = { git = "https://github.com/serai-dex/substrate", default-features = false }
sp-std = { git = "https://github.com/serai-dex/substrate", default-features = false }
serai-primitives = { path = "../../primitives", default-features = false }
[features]
default = [ "std" ]
std = [
"codec/std",
"scale-info/std",
"frame-support/std",
"frame-benchmarking?/std",
"serai-primitives/std",
"sp-runtime/std",
"sp-std/std",
]
runtime-benchmarks = [
"frame-benchmarking/runtime-benchmarks",
"frame-support/runtime-benchmarks",
]

15
substrate/dex/primitives/LICENSE-AGPL3 Normal file
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AGPL-3.0-only license
Copyright (c) 2023 Luke Parker
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License Version 3 as
published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.

211
substrate/dex/primitives/LICENSE-APACHE2 Normal file
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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
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221
substrate/dex/primitives/src/lib.rs Normal file
View file

@ -0,0 +1,221 @@
// This file was originally:
// Copyright (C) Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: Apache-2.0
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// It has been forked into a crate distributed under the AGPL 3.0.
// Please check the current distribution for up-to-date copyright and licensing information.
#![cfg_attr(not(feature = "std"), no_std)]
use codec::{Decode, Encode, MaxEncodedLen};
use scale_info::TypeInfo;
use sp_runtime::DispatchError;
use sp_std::vec::Vec;
use frame_support::traits::tokens::{Balance, AssetId as CoinId};
use serai_primitives::Coin;
/// Stores the lp_token coin id a particular pool has been assigned.
#[derive(Decode, Encode, Default, PartialEq, Eq, MaxEncodedLen, TypeInfo)]
pub struct PoolInfo<PoolCoinId> {
/// Liquidity pool coin
pub lp_token: PoolCoinId,
}
/// A trait that converts between a MultiCoinId and either the native currency or an CoinId.
pub trait MultiCoinIdConverter<MultiCoinId, CoinId> {
/// Returns the MultiCoinId representing the native currency of the chain.
fn get_native() -> MultiCoinId;
/// Returns true if the given MultiCoinId is the native currency.
fn is_native(coin: &MultiCoinId) -> bool;
/// If it's not native, returns the CoinId for the given MultiCoinId.
fn try_convert(coin: &MultiCoinId) -> MultiCoinIdConversionResult<MultiCoinId, CoinId>;
}
/// Result of `MultiCoinIdConverter::try_convert`.
#[cfg_attr(feature = "std", derive(PartialEq, Debug))]
pub enum MultiCoinIdConversionResult<MultiCoinId, CoinId> {
/// Input coin is successfully converted. Means that converted coin is supported.
Converted(CoinId),
/// Means that input coin is the chain's native coin, if it has one, so no conversion (see
/// `MultiCoinIdConverter::get_native`).
Native,
/// Means input coin is not supported for pool.
Unsupported(MultiCoinId),
}
/// Benchmark Helper
#[cfg(feature = "runtime-benchmarks")]
pub trait BenchmarkHelper<CoinId, MultiCoinId> {
/// Returns an `CoinId` from a given integer.
fn coin_id(coin_id: u32) -> CoinId;
}
#[cfg(feature = "runtime-benchmarks")]
mod runtime_benchmarks {
use super::*;
use serai_primitives::COINS;
impl BenchmarkHelper<Coin, Coin> for () {
fn coin_id(coin_id: u32) -> Coin {
// we shift id 1 unit to the left, since id 0 is the native coin.
COINS[(usize::try_from(coin_id).unwrap() % COINS.len()) + 1]
}
}
}
/// Trait for providing methods to swap between the various coin classes.
pub trait Swap<AccountId, Balance, MultiCoinId> {
/// Swap exactly `amount_in` of coin `path[0]` for coin `path[1]`.
/// If an `amount_out_min` is specified, it will return an error if it is unable to acquire
/// the amount desired.
///
/// Withdraws the `path[0]` coin from `sender`, deposits the `path[1]` coin to `send_to`,
///
/// If successful, returns the amount of `path[1]` acquired for the `amount_in`.
fn swap_exact_tokens_for_tokens(
sender: AccountId,
path: Vec<MultiCoinId>,
amount_in: Balance,
amount_out_min: Option<Balance>,
send_to: AccountId,
) -> Result<Balance, DispatchError>;
/// Take the `path[0]` coin and swap some amount for `amount_out` of the `path[1]`. If an
/// `amount_in_max` is specified, it will return an error if acquiring `amount_out` would be
/// too costly.
///
/// Withdraws `path[0]` coin from `sender`, deposits `path[1]` coin to `send_to`,
///
/// If successful returns the amount of the `path[0]` taken to provide `path[1]`.
fn swap_tokens_for_exact_tokens(
sender: AccountId,
path: Vec<MultiCoinId>,
amount_out: Balance,
amount_in_max: Option<Balance>,
send_to: AccountId,
) -> Result<Balance, DispatchError>;
}
// TODO: Sized should be there?
/// Native coin trait for Dex pallet.
pub trait Currency<AccountId>: Sized {
/// Balance of an Account.
type Balance: Balance;
/// Returns the balance of an account.
fn balance(of: &AccountId) -> Self::Balance;
/// Returns the minimum allowed balance of an account
fn minimum_balance() -> Self::Balance;
/// Transfers the given `amount` from `from` to `to`.
fn transfer(
from: &AccountId,
to: &AccountId,
amount: Self::Balance,
) -> Result<Self::Balance, DispatchError>;
/// mints the given `amount` into `to`.
fn mint(to: &AccountId, amount: Self::Balance) -> Result<Self::Balance, DispatchError>;
}
/// External coin trait for Dex pallet.
pub trait Coins<AccountId>: Sized {
/// Balance of an Account.
type Balance: Balance;
/// Coin identifier.
type CoinId: CoinId;
/// Returns the balance of an account.
fn balance(coin: Self::CoinId, of: &AccountId) -> Self::Balance;
/// Returns the minimum allowed balance of an account
fn minimum_balance(coin: Self::CoinId) -> Self::Balance;
/// Transfers the given `amount` from `from` to `to`.
fn transfer(
coin: Self::CoinId,
from: &AccountId,
to: &AccountId,
amount: Self::Balance,
) -> Result<Self::Balance, DispatchError>;
/// mints the given `amount` of `coin` into `to`.
fn mint(
coin: Self::CoinId,
to: &AccountId,
amount: Self::Balance,
) -> Result<Self::Balance, DispatchError>;
}
/// Liquidity tokens trait for Dex pallet.
pub trait LiquidityTokens<AccountId>: Sized {
/// Amount type.
type Balance: Balance;
/// Coin identifier.
type CoinId: CoinId;
/// Returns the `token` balance of and account.
fn balance(token: Self::CoinId, of: &AccountId) -> Self::Balance;
/// Mints `amount` to `to`.
fn mint_into(
token: Self::CoinId,
to: &AccountId,
amount: Self::Balance,
) -> Result<Self::Balance, DispatchError>;
/// Burns `amount` from `from`.
fn burn_from(
token: Self::CoinId,
from: &AccountId,
amount: Self::Balance,
) -> Result<Self::Balance, DispatchError>;
/// Returns total supply for `token`.
fn total_issuance(token: Self::CoinId) -> Self::Balance;
/// Returns an iterator of the collections in existence.
fn coin_ids() -> Vec<Self::CoinId>;
}
pub struct CoinConverter;
impl MultiCoinIdConverter<Coin, Coin> for CoinConverter {
/// Returns the MultiCoinId representing the native currency of the chain.
fn get_native() -> Coin {
Coin::native()
}
/// Returns true if the given MultiCoinId is the native currency.
fn is_native(coin: &Coin) -> bool {
coin.is_native()
}
/// If it's not native, returns the CoinId for the given MultiCoinId.
fn try_convert(coin: &Coin) -> MultiCoinIdConversionResult<Coin, Coin> {
if coin.is_native() {
MultiCoinIdConversionResult::Native
} else {
MultiCoinIdConversionResult::Converted(*coin)
}
}
}

12
substrate/in-instructions/pallet/Cargo.toml
View file

@ -17,10 +17,11 @@ thiserror = { version = "1", optional = true }
scale = { package = "parity-scale-codec", version = "3", default-features = false, features = ["derive", "max-encoded-len"] }
scale-info = { version = "2", default-features = false, features = ["derive"] }
sp-core = { git = "https://github.com/serai-dex/substrate", default-features = false }
sp-io = { git = "https://github.com/serai-dex/substrate", default-features = false }
sp-std = { git = "https://github.com/serai-dex/substrate", default-features = false }
sp-application-crypto = { git = "https://github.com/serai-dex/substrate", default-features = false }
sp-io = { git = "https://github.com/serai-dex/substrate", default-features = false }
sp-runtime = { git = "https://github.com/serai-dex/substrate", default-features = false }
sp-core = { git = "https://github.com/serai-dex/substrate", default-features = false }
frame-system = { git = "https://github.com/serai-dex/substrate", default-features = false }
frame-support = { git = "https://github.com/serai-dex/substrate", default-features = false }
@ -29,6 +30,7 @@ serai-primitives = { path = "../../primitives", default-features = false }
in-instructions-primitives = { package = "serai-in-instructions-primitives", path = "../primitives", default-features = false }
coins-pallet = { package = "serai-coins-pallet", path = "../../coins/pallet", default-features = false }
dex-pallet = { package = "serai-dex-pallet", path = "../../dex/pallet", default-features = false }
validator-sets-pallet = { package = "serai-validator-sets-pallet", path = "../../validator-sets/pallet", default-features = false }
[features]
@ -38,10 +40,11 @@ std = [
"scale/std",
"scale-info/std",
"sp-core/std",
"sp-io/std",
"sp-std/std",
"sp-application-crypto/std",
"sp-io/std",
"sp-runtime/std",
"sp-core/std",
"frame-system/std",
"frame-support/std",
@ -50,6 +53,7 @@ std = [
"in-instructions-primitives/std",
"coins-pallet/std",
"dex-pallet/std",
"validator-sets-pallet/std",
]
default = ["std"]

141
substrate/in-instructions/pallet/src/lib.rs
View file

@ -23,14 +23,21 @@ pub enum PalletError {
#[frame_support::pallet]
pub mod pallet {
use sp_std::vec;
use sp_application_crypto::RuntimePublic;
use sp_runtime::traits::Zero;
use sp_core::sr25519::Public;
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
use serai_primitives::{Coin, SubstrateAmount, Amount, Balance};
use coins_pallet::{Config as CoinsConfig, Pallet as Coins};
use frame_support::pallet_prelude::*;
use frame_system::{pallet_prelude::*, RawOrigin};
use coins_pallet::{
Config as CoinsConfig, Pallet as Coins,
primitives::{OutInstruction, OutInstructionWithBalance},
};
use dex_pallet::{Config as DexConfig, Pallet as Dex};
use validator_sets_pallet::{
primitives::{Session, ValidatorSet},
Config as ValidatorSetsConfig, Pallet as ValidatorSets,
@ -39,7 +46,12 @@ pub mod pallet {
use super::*;
#[pallet::config]
pub trait Config: frame_system::Config + ValidatorSetsConfig + CoinsConfig {
pub trait Config:
frame_system::Config
+ CoinsConfig
+ DexConfig<MultiCoinId = Coin, CoinBalance = SubstrateAmount>
+ ValidatorSetsConfig
{
type RuntimeEvent: From<Event<Self>> + IsType<<Self as frame_system::Config>::RuntimeEvent>;
}
@ -50,6 +62,12 @@ pub mod pallet {
InstructionFailure { network: NetworkId, id: u32, index: u32 },
}
#[pallet::error]
pub enum Error<T> {
/// Coin and OutAddress types don't match.
InvalidAddressForCoin,
}
#[pallet::pallet]
pub struct Pallet<T>(PhantomData<T>);
@ -79,7 +97,120 @@ pub mod pallet {
InInstruction::Transfer(address) => {
Coins::<T>::mint(address.into(), instruction.balance)?;
}
_ => panic!("unsupported instruction"),
InInstruction::Dex(call) => {
// This will only be initiated by external chain transactions. That is why we only need
// add liquidity and swaps. Other functionalities (such as remove_liq, etc) will be
// called directly from Serai with a native transaction.
match call {
DexCall::SwapAndAddLiquidity(address) => {
let origin = RawOrigin::Signed(IN_INSTRUCTION_EXECUTOR.into());
let coin = instruction.balance.coin;
// mint the given coin on the account
Coins::<T>::mint(IN_INSTRUCTION_EXECUTOR.into(), instruction.balance)?;
// swap half of it for SRI
let half = instruction.balance.amount.0 / 2;
let path = BoundedVec::try_from(vec![coin, Coin::Serai]).unwrap();
Dex::<T>::swap_exact_tokens_for_tokens(
origin.clone().into(),
path,
half,
1, // minimum out, so we accept whatever we get.
IN_INSTRUCTION_EXECUTOR.into(),
)?;
// get how much we got for our swap
let sri_amount = Coins::<T>::balance(IN_INSTRUCTION_EXECUTOR.into(), Coin::Serai).0;
// add liquidity
Dex::<T>::add_liquidity(
origin.clone().into(),
coin,
Coin::Serai,
half,
sri_amount,
1,
1,
address.into(),
)?;
// TODO: minimums are set to 1 above to guarantee successful adding liq call.
// Ideally we either get this info from user or send the leftovers back to user.
// Let's send the leftovers back to user for now.
let coin_balance = Coins::<T>::balance(IN_INSTRUCTION_EXECUTOR.into(), coin);
let sri_balance = Coins::<T>::balance(IN_INSTRUCTION_EXECUTOR.into(), Coin::Serai);
if coin_balance != Amount(0) {
Coins::<T>::transfer_internal(
IN_INSTRUCTION_EXECUTOR.into(),
address.into(),
Balance { coin, amount: coin_balance },
)?;
}
if sri_balance != Amount(0) {
Coins::<T>::transfer_internal(
IN_INSTRUCTION_EXECUTOR.into(),
address.into(),
Balance { coin: Coin::Serai, amount: sri_balance },
)?;
}
}
DexCall::Swap(out_balance, out_address) => {
let send_to_external = !out_address.is_native();
let native_coin = out_balance.coin.is_native();
// we can't send native coin to external chain
if native_coin && send_to_external {
Err(Error::<T>::InvalidAddressForCoin)?;
}
// mint the given coin on our account
Coins::<T>::mint(IN_INSTRUCTION_EXECUTOR.into(), instruction.balance)?;
// get the path
let mut path = vec![instruction.balance.coin, Coin::Serai];
if !native_coin {
path.push(out_balance.coin);
}
// get the swap address
// if the address is internal, we can directly swap to it. if not, we swap to
// ourselves and burn the coins to send them back on the external chain.
let send_to = if send_to_external {
IN_INSTRUCTION_EXECUTOR
} else {
out_address.clone().as_native().unwrap()
};
// do the swap
let origin = RawOrigin::Signed(IN_INSTRUCTION_EXECUTOR.into());
Dex::<T>::swap_exact_tokens_for_tokens(
origin.into(),
BoundedVec::try_from(path).unwrap(),
instruction.balance.amount.0,
out_balance.amount.0,
send_to.into(),
)?;
// burn the received coins so that they sent back to the user
// if it is requested to an external address.
if send_to_external {
// see how much we got
let coin_balance =
Coins::<T>::balance(IN_INSTRUCTION_EXECUTOR.into(), out_balance.coin);
let instruction = OutInstructionWithBalance {
instruction: OutInstruction {
address: out_address.as_external().unwrap(),
// TODO: Properly pass data. Replace address with an OutInstruction entirely?
data: None,
},
balance: Balance { coin: out_balance.coin, amount: coin_balance },
};
Coins::<T>::burn_non_sri(IN_INSTRUCTION_EXECUTOR.into(), instruction)?;
}
}
}
}
}
Ok(())
}

3
substrate/in-instructions/primitives/Cargo.toml
View file

@ -18,8 +18,8 @@ serde = { version = "1", default-features = false, features = ["derive", "alloc"
scale = { package = "parity-scale-codec", version = "3", default-features = false, features = ["derive"] }
scale-info = { version = "2", default-features = false, features = ["derive"] }
sp-application-crypto = { git = "https://github.com/serai-dex/substrate", default-features = false }
sp-std = { git = "https://github.com/serai-dex/substrate", default-features = false }
sp-application-crypto = { git = "https://github.com/serai-dex/substrate", default-features = false }
sp-runtime = { git = "https://github.com/serai-dex/substrate", default-features = false }
serai-primitives = { path = "../../primitives", default-features = false }
@ -35,6 +35,7 @@ std = [
"scale-info/std",
"sp-std/std",
"sp-application-crypto/std",
"sp-runtime/std",
"serai-primitives/std",

49
substrate/in-instructions/primitives/src/lib.rs
View file

@ -16,20 +16,65 @@ use sp_application_crypto::sr25519::Signature;
use sp_std::vec::Vec;
use sp_runtime::RuntimeDebug;
use serai_primitives::{BlockHash, Balance, NetworkId, SeraiAddress, ExternalAddress, Data};
#[rustfmt::skip]
use serai_primitives::{BlockHash, Balance, NetworkId, SeraiAddress, ExternalAddress, system_address};
mod shorthand;
pub use shorthand::*;
pub const MAX_BATCH_SIZE: usize = 25_000; // ~25kb
// This is the account which will be the origin for any dispatched `InInstruction`s.
pub const IN_INSTRUCTION_EXECUTOR: SeraiAddress = system_address(b"InInstructions-executor");
#[derive(
Clone, PartialEq, Eq, Debug, Serialize, Deserialize, Encode, Decode, MaxEncodedLen, TypeInfo,
)]
#[cfg_attr(feature = "std", derive(Zeroize))]
pub enum OutAddress {
Serai(SeraiAddress),
External(ExternalAddress),
}
impl OutAddress {
pub fn is_native(&self) -> bool {
matches!(self, Self::Serai(_))
}
pub fn as_native(self) -> Option<SeraiAddress> {
match self {
Self::Serai(addr) => Some(addr),
_ => None,
}
}
pub fn as_external(self) -> Option<ExternalAddress> {
match self {
Self::External(addr) => Some(addr),
Self::Serai(_) => None,
}
}
}
#[derive(
Clone, PartialEq, Eq, Debug, Serialize, Deserialize, Encode, Decode, MaxEncodedLen, TypeInfo,
)]
#[cfg_attr(feature = "std", derive(Zeroize))]
pub enum DexCall {
// address to send the lp tokens to
// TODO: Update this per documentation/Shorthand
SwapAndAddLiquidity(SeraiAddress),
// minimum out balance and out address
Swap(Balance, OutAddress),
}
#[derive(
Clone, PartialEq, Eq, Debug, Serialize, Deserialize, Encode, Decode, MaxEncodedLen, TypeInfo,
)]
#[cfg_attr(feature = "std", derive(Zeroize))]
pub enum InInstruction {
Transfer(SeraiAddress),
Dex(Data),
Dex(DexCall),
}
#[derive(

4
substrate/in-instructions/primitives/src/shorthand.rs
View file

@ -26,7 +26,7 @@ pub enum Shorthand {
minimum: Amount,
out: OutInstruction,
},
AddLiquidity {
SwapAndAddLiquidity {
origin: Option<ExternalAddress>,
minimum: Amount,
gas: Amount,
@ -47,7 +47,7 @@ impl TryFrom<Shorthand> for RefundableInInstruction {
Ok(match shorthand {
Shorthand::Raw(instruction) => instruction,
Shorthand::Swap { .. } => todo!(),
Shorthand::AddLiquidity { .. } => todo!(),
Shorthand::SwapAndAddLiquidity { .. } => todo!(),
})
}
}

46
substrate/liquidity-tokens/pallet/Cargo.toml Normal file
View file

@ -0,0 +1,46 @@
[package]
name = "serai-liquidity-tokens-pallet"
version = "0.1.0"
description = "liquidity tokens pallet for Serai"
license = "AGPL-3.0-only"
repository = "https://github.com/serai-dex/serai/tree/develop/substrate/liquidity-tokens/pallet"
authors = ["Akil Demir <aeg_asd@hotmail.com>"]
edition = "2021"
[package.metadata.docs.rs]
all-features = true
rustdoc-args = ["--cfg", "docsrs"]
[dependencies]
parity-scale-codec = { version = "3", default-features = false, features = ["derive"] }
scale-info = { version = "2", default-features = false, features = ["derive"] }
frame-system = { git = "https://github.com/serai-dex/substrate", default-features = false }
frame-support = { git = "https://github.com/serai-dex/substrate", default-features = false }
sp-core = { git = "https://github.com/serai-dex/substrate", default-features = false }
sp-std = { git = "https://github.com/serai-dex/substrate", default-features = false }
dex-primitives = { package = "serai-dex-primitives", path = "../../dex/primitives", default-features = false }
serai-primitives = { path = "../../primitives", default-features = false }
[features]
std = [
"frame-system/std",
"frame-support/std",
"sp-core/std",
"sp-std/std",
"dex-primitives/std",
"serai-primitives/std",
]
runtime-benchmarks = [
"frame-system/runtime-benchmarks",
"frame-support/runtime-benchmarks",
]
default = ["std"]

15
substrate/liquidity-tokens/pallet/LICENSE Normal file
View file

@ -0,0 +1,15 @@
AGPL-3.0-only license
Copyright (c) 2023 Luke Parker
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License Version 3 as
published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.

152
substrate/liquidity-tokens/pallet/src/lib.rs Normal file
View file

@ -0,0 +1,152 @@
#![cfg_attr(not(feature = "std"), no_std)]
#[frame_support::pallet]
pub mod pallet {
use sp_core::sr25519::Public;
use sp_std::vec::Vec;
use frame_support::pallet_prelude::*;
use dex_primitives::LiquidityTokens;
use serai_primitives::*;
#[pallet::config]
pub trait Config: frame_system::Config<AccountId = Public> {
type RuntimeEvent: From<Event<Self>> + IsType<<Self as frame_system::Config>::RuntimeEvent>;
}
#[pallet::error]
pub enum Error<T> {
AmountOverflowed,
NotEnoughCoins,
}
#[pallet::event]
#[pallet::generate_deposit(fn deposit_event)]
pub enum Event<T: Config> {
LtMint { to: Public, token: u32, amount: Amount },
LtBurn { from: Public, token: u32, amount: Amount },
}
#[pallet::pallet]
pub struct Pallet<T>(PhantomData<T>);
/// The amount of coins each account has.
// Identity is used as the second key's hasher due to it being a non-manipulatable fixed-space
// ID.
#[pallet::storage]
#[pallet::getter(fn balances)]
pub type Balances<T: Config> = StorageDoubleMap<
_,
Blake2_128Concat,
Public,
Blake2_128Concat,
u32,
SubstrateAmount,
OptionQuery,
>;
/// The total supply of each coin.
// We use Identity type here again due to reasons stated in the Balances Storage.
#[pallet::storage]
#[pallet::getter(fn supply)]
pub type Supply<T: Config> = StorageMap<_, Blake2_128Concat, u32, SubstrateAmount, ValueQuery>;
// TODO: apis: supply, mint, burn, transfer
impl<T: Config> Pallet<T> {
/// Returns the balance of a given account for `token`.
pub fn balance(token: u32, of: T::AccountId) -> SubstrateAmount {
Self::balances(of, token).unwrap_or(0)
}
/// Mint `balance` to the given account.
///
/// Errors if any amount overflows.
pub fn mint_into(token: u32, to: Public, amount: SubstrateAmount) -> Result<(), Error<T>> {
let balance = Self::balances(to, token).unwrap_or(0);
// update the balance
let new_amount = balance.checked_add(amount).ok_or(Error::<T>::AmountOverflowed)?;
// save
Balances::<T>::set(to, token, Some(new_amount));
// update the supply
let new_supply =
Self::supply(token).checked_add(amount).ok_or(Error::<T>::AmountOverflowed)?;
Supply::<T>::set(token, new_supply);
Self::deposit_event(Event::LtMint { to, token, amount: Amount(amount) });
Ok(())
}
// Burn `balance` from the specified account.
pub fn burn_from(token: u32, from: Public, amount: SubstrateAmount) -> Result<(), Error<T>> {
let balance = Self::balances(from, token);
if balance.is_none() {
Err(Error::<T>::NotEnoughCoins)?;
}
// update the balance
let new_amount = balance.unwrap().checked_sub(amount).ok_or(Error::<T>::NotEnoughCoins)?;
// save
if new_amount == 0 {
Balances::<T>::remove(from, token);
} else {
Balances::<T>::set(from, token, Some(new_amount));
}
// update the supply
let new_supply = Self::supply(token).checked_sub(amount).unwrap();
if new_supply == 0 {
Supply::<T>::remove(token);
} else {
Supply::<T>::set(token, new_supply);
}
Self::deposit_event(Event::LtBurn { from, token, amount: Amount(amount) });
Ok(())
}
pub fn total_issuance(token: u32) -> SubstrateAmount {
Supply::<T>::get(token)
}
}
impl<T: Config> LiquidityTokens<T::AccountId> for Pallet<T> {
type Balance = SubstrateAmount;
type CoinId = u32;
fn mint_into(
token: Self::CoinId,
to: &Public,
amount: Self::Balance,
) -> Result<Self::Balance, DispatchError> {
Self::mint_into(token, *to, amount)?;
Ok(amount)
}
fn burn_from(
token: Self::CoinId,
from: &Public,
amount: Self::Balance,
) -> Result<Self::Balance, DispatchError> {
Self::burn_from(token, *from, amount)?;
Ok(amount)
}
fn total_issuance(token: Self::CoinId) -> Self::Balance {
Self::total_issuance(token)
}
fn coin_ids() -> Vec<Self::CoinId> {
Supply::<T>::iter_keys().collect::<Vec<Self::CoinId>>()
}
fn balance(token: Self::CoinId, of: &Public) -> Self::Balance {
Self::balance(token, *of)
}
}
}
pub use pallet::*;

6
substrate/node/src/chain_spec.rs
View file

@ -6,8 +6,8 @@ use sc_service::ChainType;
use serai_runtime::{
primitives::*, WASM_BINARY, opaque::SessionKeys, BABE_GENESIS_EPOCH_CONFIG, RuntimeGenesisConfig,
SystemConfig, ValidatorSetsConfig, SessionConfig, BabeConfig, GrandpaConfig,
AuthorityDiscoveryConfig, CoinsConfig,
SystemConfig, CoinsConfig, DexConfig, ValidatorSetsConfig, SessionConfig, BabeConfig,
GrandpaConfig, AuthorityDiscoveryConfig,
};
pub type ChainSpec = sc_service::GenericChainSpec<RuntimeGenesisConfig>;
@ -43,6 +43,8 @@ fn testnet_genesis(
.collect(),
},
dex: DexConfig { pools: vec![Coin::Bitcoin, Coin::Ether, Coin::Dai, Coin::Monero] },
validator_sets: ValidatorSetsConfig {
networks: serai_runtime::primitives::NETWORKS
.iter()

10
substrate/primitives/src/networks.rs
View file

@ -42,6 +42,8 @@ pub const COINS: [Coin; 5] = [Coin::Serai, Coin::Bitcoin, Coin::Ether, Coin::Dai
Copy,
PartialEq,
Eq,
PartialOrd,
Ord,
Hash,
Debug,
Serialize,
@ -61,6 +63,10 @@ pub enum Coin {
}
impl Coin {
pub fn native() -> Coin {
Coin::Serai
}
pub fn network(&self) -> NetworkId {
match self {
Coin::Serai => NetworkId::Serai,
@ -101,6 +107,10 @@ impl Coin {
Coin::Monero => 12,
}
}
pub fn is_native(&self) -> bool {
matches!(self, Coin::Serai)
}
}
// Max of 8 coins per network

8
substrate/runtime/Cargo.toml
View file

@ -40,12 +40,15 @@ frame-executive = { git = "https://github.com/serai-dex/substrate", default-feat
frame-benchmarking = { git = "https://github.com/serai-dex/substrate", default-features = false, optional = true }
serai-primitives = { path = "../primitives", default-features = false }
serai-dex-primitives = { path = "../dex/primitives", default-features = false }
pallet-timestamp = { git = "https://github.com/serai-dex/substrate", default-features = false }
pallet-transaction-payment = { git = "https://github.com/serai-dex/substrate", default-features = false }
coins-pallet = { package = "serai-coins-pallet", path = "../coins/pallet", default-features = false }
liquidity-tokens-pallet = { package = "serai-liquidity-tokens-pallet", path = "../liquidity-tokens/pallet", default-features = false }
dex-pallet = { package = "serai-dex-pallet", path = "../dex/pallet", default-features = false }
validator-sets-pallet = { package = "serai-validator-sets-pallet", path = "../validator-sets/pallet", default-features = false }
pallet-session = { git = "https://github.com/serai-dex/substrate", default-features = false }
@ -94,12 +97,15 @@ std = [
"frame-executive/std",
"serai-primitives/std",
"serai-dex-primitives/std",
"pallet-timestamp/std",
"pallet-transaction-payment/std",
"coins-pallet/std",
"liquidity-tokens-pallet/std",
"dex-pallet/std",
"validator-sets-pallet/std",
"pallet-session/std",
@ -126,6 +132,8 @@ runtime-benchmarks = [
"pallet-timestamp/runtime-benchmarks",
"dex-pallet/runtime-benchmarks",
"pallet-babe/runtime-benchmarks",
"pallet-grandpa/runtime-benchmarks",
]

38
substrate/runtime/src/lib.rs
View file

@ -17,6 +17,8 @@ pub use pallet_timestamp as timestamp;
pub use pallet_transaction_payment as transaction_payment;
pub use coins_pallet as coins;
pub use liquidity_tokens_pallet as liquidity_tokens;
pub use dex_pallet as dex;
pub use validator_sets_pallet as validator_sets;
pub use pallet_session as session;
@ -45,7 +47,7 @@ use sp_runtime::{
ApplyExtrinsicResult, Perbill,
};
use primitives::{PublicKey, SeraiAddress, AccountLookup, Signature, SubstrateAmount};
use primitives::{PublicKey, SeraiAddress, Coin, AccountLookup, Signature, SubstrateAmount};
use support::{
traits::{ConstU8, ConstU32, ConstU64, Contains},
@ -167,6 +169,7 @@ impl Contains<RuntimeCall> for CallFilter {
// All of these pallets are our own, and all of their written calls are intended to be called
RuntimeCall::Coins(call) => !matches!(call, coins::Call::__Ignore(_, _)),
RuntimeCall::Dex(call) => !matches!(call, dex::Call::__Ignore(_, _)),
RuntimeCall::ValidatorSets(call) => !matches!(call, validator_sets::Call::__Ignore(_, _)),
RuntimeCall::InInstructions(call) => !matches!(call, in_instructions::Call::__Ignore(_, _)),
RuntimeCall::Signals(call) => !matches!(call, signals::Call::__Ignore(_, _)),
@ -243,6 +246,37 @@ impl coins::Config for Runtime {
type RuntimeEvent = RuntimeEvent;
}
impl liquidity_tokens::Config for Runtime {
type RuntimeEvent = RuntimeEvent;
}
impl dex::Config for Runtime {
type RuntimeEvent = RuntimeEvent;
type Currency = Coins;
type Balance = SubstrateAmount;
type CoinBalance = SubstrateAmount;
// TODO: Review if this should be u64/u128 or u64/u256 (and rounding in general).
type HigherPrecisionBalance = u128;
type CoinId = Coin;
type MultiCoinId = Coin;
type MultiCoinIdConverter = serai_dex_primitives::CoinConverter;
type PoolCoinId = u32;
type Coins = Coins;
type PoolCoins = LiquidityTokens;
type LPFee = ConstU32<3>; // 0.3%
type MintMinLiquidity = ConstU64<10000>;
type MaxSwapPathLength = ConstU32<3>; // coin1 -> SRI -> coin2
type WeightInfo = dex::weights::SubstrateWeight<Runtime>;
#[cfg(feature = "runtime-benchmarks")]
type BenchmarkHelper = ();
}
impl validator_sets::Config for Runtime {
type RuntimeEvent = RuntimeEvent;
}
@ -342,6 +376,8 @@ construct_runtime!(
TransactionPayment: transaction_payment,
Coins: coins,
LiquidityTokens: liquidity_tokens,
Dex: dex,
ValidatorSets: validator_sets,
Session: session,

2
substrate/validator-sets/pallet/src/lib.rs
View file

@ -409,7 +409,7 @@ pub mod pallet {
impl<T: Config> Pallet<T> {
fn account() -> T::AccountId {
system_address(b"validator-sets").into()
system_address(b"ValidatorSets").into()
}
// is_bft returns if the network is able to survive any single node becoming byzantine.