TychoSimulationContract

tycho_simulation::evm::protocol::vm::tycho_simulation_contract

Struct TychoSimulationContract 

Source 
pub struct TychoSimulationContract<D: EngineDatabaseInterface + Clone + Debug>
where
    <D as DatabaseRef>::Error: Debug,
    <D as EngineDatabaseInterface>::Error: Debug,
{ /* private fields */ }
Expand description

Represents a contract interface that interacts with the tycho_simulation environment to perform simulations on Ethereum smart contracts.

TychoSimulationContract is a wrapper around the low-level details of encoding and decoding inputs and outputs, simulating transactions, and handling ABI interactions specific to the Tycho environment. It is designed to be used by applications requiring smart contract simulations and includes methods for encoding function calls, decoding transaction results, and interacting with the SimulationEngine.

§Type Parameters

  • D: A database reference that implements DatabaseRef and Clone, which the simulation engine uses to access blockchain state.

§Fields

  • abi: The Application Binary Interface of the contract, which defines its functions and event signatures.
  • address: The address of the contract being simulated.
  • engine: The SimulationEngine instance responsible for simulating transactions and managing the contract’s state.

§Errors

Returns errors of type SimulationError when encoding, decoding, or simulation operations fail. These errors provide detailed feedback on potential issues.

Implementations§

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impl<D: EngineDatabaseInterface + Clone + Debug> TychoSimulationContract<D>
where <D as DatabaseRef>::Error: Debug, <D as EngineDatabaseInterface>::Error: Debug,

An implementation of TychoSimulationContract specific to the AdapterContract ABI interface, providing methods for price calculations, token swaps, capability checks, and more.

This struct facilitates interaction with the AdapterContract by encoding and decoding data according to its ABI specification. Each method corresponds to a function in the adapter contract’s interface, enabling seamless integration with tycho’s simulation environment.

§Methods

  • price: Calculates price information for a token pair within the adapter.
  • swap: Simulates a token swap operation, returning details about the trade and state updates.
  • get_limits: Retrieves the trade limits for a given token pair.
  • get_capabilities: Checks the capabilities of the adapter for a specific token pair.
  • min_gas_usage: Queries the minimum gas usage required for operations within the adapter.
Source

pub fn price( &self, pair_id: &str, sell_token: Address, buy_token: Address, amounts: Vec<U256>, overwrites: Option<HashMap<Address, HashMap<SlotId, U256>>>, ) -> Result<Vec<f64>, SimulationError>

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pub fn swap( &self, pair_id: &str, sell_token: Address, buy_token: Address, is_buy: bool, amount: U256, overwrites: Option<HashMap<Address, HashMap<U256, U256>>>, ) -> Result<(Trade, HashMap<Address, StateUpdate>), SimulationError>

Source

pub fn get_limits( &self, pair_id: &str, sell_token: Address, buy_token: Address, overwrites: Option<HashMap<Address, HashMap<U256, U256>>>, ) -> Result<(U256, U256), SimulationError>

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pub fn get_capabilities( &self, pair_id: &str, sell_token: Address, buy_token: Address, ) -> Result<HashSet<Capability>, SimulationError>

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pub fn min_gas_usage(&self) -> Result<u64, SimulationError>

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impl<D: EngineDatabaseInterface + Clone + Debug> TychoSimulationContract<D>
where <D as DatabaseRef>::Error: Debug, <D as EngineDatabaseInterface>::Error: Debug,

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pub fn new( address: Address, engine: SimulationEngine<D>, ) -> Result<Self, SimulationError>

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pub fn new_contract( address: Address, adapter_contract_bytecode: Bytecode, engine: SimulationEngine<D>, ) -> Result<Self, SimulationError>

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pub fn call( &self, selector: &str, args: impl SolValue, overrides: Option<HashMap<Address, HashMap<U256, U256>>>, caller: Option<Address>, value: U256, transient_storage: Option<HashMap<Address, HashMap<U256, U256>>>, ) -> Result<TychoSimulationResponse, SimulationError>

Trait Implementations§

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impl<D: Clone + EngineDatabaseInterface + Clone + Debug> Clone for TychoSimulationContract<D>
where <D as DatabaseRef>::Error: Debug, <D as EngineDatabaseInterface>::Error: Debug,

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fn clone(&self) -> TychoSimulationContract<D>

Returns a duplicate of the value. Read more
1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<D: Debug + EngineDatabaseInterface + Clone + Debug> Debug for TychoSimulationContract<D>
where <D as DatabaseRef>::Error: Debug, <D as EngineDatabaseInterface>::Error: Debug,

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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