Method parameters_from_app_data

crates/simulator/src/simulation_builder.rs:221–260

Parses the app data JSON and configures the builder accordingly: - Pre/post hooks are encoded as interactions via the [`HooksTrampoline`] - Flashloan/wrapper fields set the [`WrapperConfig`].

(mut self, app_data: &str)

    /// - Pre/post hooks are encoded as interactions via the [`HooksTrampoline`]
    /// - Flashloan/wrapper fields set the [`WrapperConfig`].
    pub fn parameters_from_app_data(mut self, app_data: &str) -> Result<Self, BuildError> {
        let protocol = app_data::parse(app_data.as_bytes()).map_err(BuildError::AppDataParse)?;

        self.pre_interactions
            .extend(self.encode_hooks(&protocol.hooks.pre));
        self.post_interactions
            .extend(self.encode_hooks(&protocol.hooks.post));

        match (protocol.wrappers.is_empty(), protocol.flashloan) {
            (false, Some(_)) => return Err(BuildError::FlashloanWrappersIncompatible),
            (false, None) => {
                let mut wrapper_calls = Vec::with_capacity(protocol.wrappers.len());
                for w in protocol.wrappers {
                    // TODO: REMOVE THIS HACK!
                    // Unconditionally add state override for euler compatibility.
                    // If this state override gets added to calls that don't need it
                    // it will not interfere with the simulation.
                    self.account_override_requests
                        .extend(compute_euler_override(&w));

                    wrapper_calls.push(WrapperCall {
                        address: w.address,
                        data: w.data.into(),
                    });
                }
                self.wrapper = WrapperConfig::Custom(wrapper_calls);
            }
            (true, Some(flashloan)) => {
                self.wrapper = WrapperConfig::Flashloan(vec![FlashloanRequest {
                    amount: flashloan.amount,
                    borrower: flashloan.protocol_adapter,
                    lender: flashloan.liquidity_provider,
                    token: flashloan.token,
                }]);
            }
            (true, None) => {}
        }

        Ok(self)
    }

    /// Generates 1 interaction executing the given hooks via the trampoline
    /// contract since executing hooks directly from the settlement contract