rtvm_interpreter

Trait Host

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pub trait Host {

Show 13 methods    // Required methods
    fn env(&self) -> &Env;
    fn env_mut(&mut self) -> &mut Env;
    fn load_account(&mut self, address: Address) -> Option<LoadAccountResult>;
    fn block_hash(&mut self, number: U256) -> Option<B256>;
    fn balance(&mut self, address: Address) -> Option<(U256, bool)>;
    fn code(&mut self, address: Address) -> Option<(Bytecode, bool)>;
    fn code_hash(&mut self, address: Address) -> Option<(B256, bool)>;
    fn sload(&mut self, address: Address, index: U256) -> Option<(U256, bool)>;
    fn sstore(
        &mut self,
        address: Address,
        index: U256,
        value: U256,
    ) -> Option<SStoreResult>;
    fn tload(&mut self, address: Address, index: U256) -> U256;
    fn tstore(&mut self, address: Address, index: U256, value: U256);
    fn log(&mut self, log: Log);
    fn selfdestruct(
        &mut self,
        address: Address,
        target: Address,
    ) -> Option<SelfDestructResult>;

}
Expand description

EVM context host.

Required Methods§

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fn env(&self) -> &Env

Returns a reference to the environment.

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fn env_mut(&mut self) -> &mut Env

Returns a mutable reference to the environment.

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fn load_account(&mut self, address: Address) -> Option<LoadAccountResult>

Load an account.

Returns (is_cold, is_new_account)

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fn block_hash(&mut self, number: U256) -> Option<B256>

Get the block hash of the given block number.

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fn balance(&mut self, address: Address) -> Option<(U256, bool)>

Get balance of address and if the account is cold.

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fn code(&mut self, address: Address) -> Option<(Bytecode, bool)>

Get code of address and if the account is cold.

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fn code_hash(&mut self, address: Address) -> Option<(B256, bool)>

Get code hash of address and if the account is cold.

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fn sload(&mut self, address: Address, index: U256) -> Option<(U256, bool)>

Get storage value of address at index and if the account is cold.

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fn sstore( &mut self, address: Address, index: U256, value: U256, ) -> Option<SStoreResult>

Set storage value of account address at index.

Returns (original, present, new, is_cold).

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fn tload(&mut self, address: Address, index: U256) -> U256

Get the transient storage value of address at index.

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fn tstore(&mut self, address: Address, index: U256, value: U256)

Set the transient storage value of address at index.

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fn log(&mut self, log: Log)

Emit a log owned by address with given LogData.

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fn selfdestruct( &mut self, address: Address, target: Address, ) -> Option<SelfDestructResult>

Mark address to be deleted, with funds transferred to target.

Implementors§