example_database_components::state

Trait StateRef

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pub trait StateRef {
    type Error;

    // Required methods
    fn basic(
        &self,
        address: Address,
    ) -> Result<Option<AccountInfo>, Self::Error>;
    fn code_by_hash(&self, code_hash: B256) -> Result<Bytecode, Self::Error>;
    fn storage(
        &self,
        address: Address,
        index: U256,
    ) -> Result<U256, Self::Error>;
}

Required Associated Types§

Required Methods§

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fn basic(&self, address: Address) -> Result<Option<AccountInfo>, Self::Error>

Get basic account information.

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fn code_by_hash(&self, code_hash: B256) -> Result<Bytecode, Self::Error>

Get account code by its hash

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fn storage(&self, address: Address, index: U256) -> Result<U256, Self::Error>

Get storage value of address at index.

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impl<'a, T: 'a + StateRef + ?Sized> StateRef for &'a T

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type Error = <T as StateRef>::Error

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fn basic(&self, address: Address) -> Result<Option<AccountInfo>, Self::Error>

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fn code_by_hash(&self, code_hash: B256) -> Result<Bytecode, Self::Error>

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fn storage(&self, address: Address, index: U256) -> Result<U256, Self::Error>

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impl<'a, T: 'a + StateRef + ?Sized> StateRef for &'a mut T

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type Error = <T as StateRef>::Error

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fn basic(&self, address: Address) -> Result<Option<AccountInfo>, Self::Error>

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fn code_by_hash(&self, code_hash: B256) -> Result<Bytecode, Self::Error>

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fn storage(&self, address: Address, index: U256) -> Result<U256, Self::Error>

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impl<T: StateRef + ?Sized> StateRef for Box<T>

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type Error = <T as StateRef>::Error

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fn basic(&self, address: Address) -> Result<Option<AccountInfo>, Self::Error>

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fn code_by_hash(&self, code_hash: B256) -> Result<Bytecode, Self::Error>

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fn storage(&self, address: Address, index: U256) -> Result<U256, Self::Error>

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impl<T: StateRef + ?Sized> StateRef for Rc<T>

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type Error = <T as StateRef>::Error

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fn basic(&self, address: Address) -> Result<Option<AccountInfo>, Self::Error>

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fn code_by_hash(&self, code_hash: B256) -> Result<Bytecode, Self::Error>

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fn storage(&self, address: Address, index: U256) -> Result<U256, Self::Error>

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impl<T: StateRef + ?Sized> StateRef for Arc<T>

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type Error = <T as StateRef>::Error

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fn basic(&self, address: Address) -> Result<Option<AccountInfo>, Self::Error>

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fn code_by_hash(&self, code_hash: B256) -> Result<Bytecode, Self::Error>

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fn storage(&self, address: Address, index: U256) -> Result<U256, Self::Error>

Implementors§