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Permit2Ext

signet_orders

Trait Permit2Ext 

Source 
pub trait Permit2Ext: Sync {
    // Required methods
    fn sufficient_balance(
        &self,
        token: Address,
        user: Address,
        amount: U256,
    ) -> impl Future<Output = Result<(), PreflightError>> + Send;
    fn token_approved(
        &self,
        token: Address,
        user: Address,
        amount: U256,
    ) -> impl Future<Output = Result<(), PreflightError>> + Send;
    fn nonce_available(
        &self,
        user: Address,
        nonce: U256,
    ) -> impl Future<Output = Result<(), PreflightError>> + Send;

    // Provided methods
    fn check_signed_order(
        &self,
        order: &SignedOrder,
    ) -> impl Future<Output = Result<(), PreflightError>> + Send { ... }
    fn check_unsigned_order(
        &self,
        order: &UnsignedOrder<'_>,
        user: Address,
    ) -> impl Future<Output = Result<(), PreflightError>> + Send { ... }
    fn check_orders_and_fills(
        &self,
        orders_and_fills: &OrdersAndFills,
    ) -> impl Future<Output = Result<(), PreflightError>> + Send { ... }
}
Expand description

Extension trait that adds Permit2 preflight validation to any Provider.

Provides low-level checks (sufficient_balance, token_approved, nonce_available) and high-level order validation methods.

§Example

use signet_orders::Permit2Ext;

provider.check_signed_order(&signed_order).await?;

Required Methods§

Source

fn sufficient_balance( &self, token: Address, user: Address, amount: U256, ) -> impl Future<Output = Result<(), PreflightError>> + Send

Check if user has at least amount of token.

Source

fn token_approved( &self, token: Address, user: Address, amount: U256, ) -> impl Future<Output = Result<(), PreflightError>> + Send

Check if user has approved at least amount of token to Permit2.

Source

fn nonce_available( &self, user: Address, nonce: U256, ) -> impl Future<Output = Result<(), PreflightError>> + Send

Check if a Permit2 nonce is still available (not yet consumed).

Provided Methods§

Source

fn check_signed_order( &self, order: &SignedOrder, ) -> impl Future<Output = Result<(), PreflightError>> + Send

Validate all preflight conditions for a SignedOrder.

Checks token balances, ERC20 approvals, and Permit2 nonce for each permitted token. Runs all checks concurrently.

Source

fn check_unsigned_order( &self, order: &UnsignedOrder<'_>, user: Address, ) -> impl Future<Output = Result<(), PreflightError>> + Send

Validate preflight conditions for an UnsignedOrder.

Checks token balances and ERC20 approvals for each input token. Nonce check is skipped since unsigned orders lack a finalized nonce.

Source

fn check_orders_and_fills( &self, orders_and_fills: &OrdersAndFills, ) -> impl Future<Output = Result<(), PreflightError>> + Send

Validate preflight conditions for all orders in an OrdersAndFills.

Runs check_signed_order for every order concurrently.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§