revm_context::context

Struct Context

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pub struct Context<BLOCK = BlockEnv, TX = TxEnv, CFG = CfgEnv, DB: Database = EmptyDB, CHAIN = ()> {
    pub tx: TX,
    pub block: BLOCK,
    pub cfg: CFG,
    pub journaled_state: JournaledState<DB>,
    pub chain: CHAIN,
    pub error: Result<(), <DB as Database>::Error>,
}
Expand description

EVM context contains data that EVM needs for execution.

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§tx: TX

Transaction information.

§block: BLOCK

Block information.

§cfg: CFG

Configurations.

§journaled_state: JournaledState<DB>

EVM State with journaling support and database.

§chain: CHAIN

Inner context.

§error: Result<(), <DB as Database>::Error>

Error that happened during execution.

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impl Context

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pub fn builder() -> Self

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impl<BLOCK: Block + Default, TX: Transaction + Default, DB: Database, CHAIN: Default> Context<BLOCK, TX, CfgEnv, DB, CHAIN>

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pub fn new(db: DB, spec: SpecId) -> Self

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impl<BLOCK, TX, CFG, DB, CHAIN> Context<BLOCK, TX, CFG, DB, CHAIN>
where BLOCK: Block, TX: Transaction, CFG: Cfg, DB: Database,

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pub fn code( &mut self, address: Address, ) -> Result<Eip7702CodeLoad<Bytes>, <DB as Database>::Error>

Return account code bytes and if address is cold loaded.

In case of EOF account it will return EOF_MAGIC (0xEF00) as code.

TODO move this in Journaled state

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pub fn with_db<ODB: Database>( self, db: ODB, ) -> Context<BLOCK, TX, CFG, ODB, CHAIN>

Create a new context with a new database type.

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pub fn with_block<OB: Block>(self, block: OB) -> Context<OB, TX, CFG, DB, CHAIN>

Create a new context with a new block type.

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pub fn with_tx<OTX: Transaction>( self, tx: OTX, ) -> Context<BLOCK, OTX, CFG, DB, CHAIN>

Create a new context with a new transaction type.

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pub fn with_chain<OC>(self, chain: OC) -> Context<BLOCK, TX, CFG, DB, OC>

Create a new context with a new chain type.

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pub fn with_cfg<OCFG: Cfg>( self, cfg: OCFG, ) -> Context<BLOCK, TX, OCFG, DB, CHAIN>

Create a new context with a new chain type.

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pub fn modify_cfg_chained<F>(self, f: F) -> Self
where F: FnOnce(&mut CFG),

Modify the context configuration.

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pub fn modify_block_chained<F>(self, f: F) -> Self
where F: FnOnce(&mut BLOCK),

Modify the context block.

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pub fn modify_tx_chained<F>(self, f: F) -> Self
where F: FnOnce(&mut TX),

Modify the context transaction.

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pub fn modify_chain_chained<F>(self, f: F) -> Self
where F: FnOnce(&mut CHAIN),

Modify the context chain.

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pub fn modify_db_chained<F>(self, f: F) -> Self
where F: FnOnce(&mut DB),

Modify the context database.

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pub fn modify_journal_chained<F>(self, f: F) -> Self
where F: FnOnce(&mut JournaledStateImpl<DB>),

Modify the context journal.

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pub fn modify_block<F>(&mut self, f: F)
where F: FnOnce(&mut BLOCK),

Modify the context block.

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pub fn modify_tx<F>(&mut self, f: F)
where F: FnOnce(&mut TX),

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pub fn modify_cfg<F>(&mut self, f: F)
where F: FnOnce(&mut CFG),

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pub fn modify_chain<F>(&mut self, f: F)
where F: FnOnce(&mut CHAIN),

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pub fn modify_db<F>(&mut self, f: F)
where F: FnOnce(&mut DB),

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pub fn modify_journal<F>(&mut self, f: F)
where F: FnOnce(&mut JournaledStateImpl<DB>),

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pub fn code_hash( &mut self, address: Address, ) -> Result<Eip7702CodeLoad<B256>, <DB as Database>::Error>

Get code hash of address.

In case of EOF account it will return EOF_MAGIC_HASH (the hash of 0xEF00).

TODO move this in Journaled state

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impl<BLOCK: Block, TX, SPEC, DB: Database, CHAIN> BlockGetter for Context<BLOCK, TX, SPEC, DB, CHAIN>

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type Block = BLOCK

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fn block(&self) -> &Self::Block

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impl<BLOCK: Block, TX, SPEC, DB: Database, CHAIN> BlockSetter for Context<BLOCK, TX, SPEC, DB, CHAIN>

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fn set_block(&mut self, block: <Self as BlockGetter>::Block)

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impl<BLOCK, TX, DB: Database, CFG: Cfg, CHAIN> CfgGetter for Context<BLOCK, TX, CFG, DB, CHAIN>

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type Cfg = CFG

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fn cfg(&self) -> &Self::Cfg

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impl<BLOCK, TX, CFG, DB, CHAIN> Clone for Context<BLOCK, TX, CFG, DB, CHAIN>
where BLOCK: Clone, CFG: Clone, CHAIN: Clone, TX: Clone, DB: Clone + Database, <DB as Database>::Error: Clone,

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fn clone(&self) -> Self

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<BLOCK, TX, SPEC, DB: Database, CHAIN> DatabaseGetter for Context<BLOCK, TX, SPEC, DB, CHAIN>

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type Database = DB

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fn db(&mut self) -> &mut Self::Database

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impl<BLOCK, TX, CFG, DB, CHAIN> Debug for Context<BLOCK, TX, CFG, DB, CHAIN>
where BLOCK: Debug, CFG: Debug, CHAIN: Debug, TX: Debug, DB: Debug + Database, <DB as Database>::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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impl Default for Context

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<BLOCK, TX: Transaction, SPEC, DB: Database, CHAIN> ErrorGetter for Context<BLOCK, TX, SPEC, DB, CHAIN>

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type Error = EVMError<<DB as Database>::Error, <TX as Transaction>::TransactionError>

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fn take_error(&mut self) -> Result<(), Self::Error>

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impl<BLOCK: Block, TX: Transaction, CFG: Cfg, DB: Database, CHAIN> Host for Context<BLOCK, TX, CFG, DB, CHAIN>

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type BLOCK = BLOCK

Chain specification.
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type TX = TX

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type CFG = CFG

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fn tx(&self) -> &Self::TX

Returns a reference to the environment.
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fn block(&self) -> &Self::BLOCK

Returns a mutable reference to the environment.
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fn cfg(&self) -> &Self::CFG

TODO make it generic in future
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fn block_hash(&mut self, requested_number: u64) -> Option<B256>

Get the block hash of the given block number.
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fn load_account_delegated(&mut self, address: Address) -> Option<AccountLoad>

Load an account code.
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fn balance(&mut self, address: Address) -> Option<StateLoad<U256>>

Get balance of address and if the account is cold.
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fn code(&mut self, address: Address) -> Option<Eip7702CodeLoad<Bytes>>

Get code of address and if the account is cold.
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fn code_hash(&mut self, address: Address) -> Option<Eip7702CodeLoad<B256>>

Get code hash of address and if the account is cold.
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fn sload(&mut self, address: Address, index: U256) -> Option<StateLoad<U256>>

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<StateLoad<SStoreResult>>

Set storage value of account address at index. Read more
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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<StateLoad<SelfDestructResult>>

Mark address to be deleted, with funds transferred to target.
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impl<BLOCK, TX, SPEC, DB: Database, CHAIN> JournalStateGetter for Context<BLOCK, TX, SPEC, DB, CHAIN>

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type Journal = JournaledState<DB>

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fn journal(&mut self) -> &mut Self::Journal

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impl<BLOCK, TX: Transaction, SPEC, DB: Database, CHAIN> TransactionGetter for Context<BLOCK, TX, SPEC, DB, CHAIN>

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type Transaction = TX

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fn tx(&self) -> &Self::Transaction

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impl<BLOCK, TX: Transaction, SPEC, DB: Database, CHAIN> TransactionSetter for Context<BLOCK, TX, SPEC, DB, CHAIN>

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fn set_tx(&mut self, tx: <Self as TransactionGetter>::Transaction)

Auto Trait Implementations§

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impl<BLOCK, TX, CFG, DB, CHAIN> Freeze for Context<BLOCK, TX, CFG, DB, CHAIN>
where TX: Freeze, BLOCK: Freeze, CFG: Freeze, CHAIN: Freeze, DB: Freeze, <DB as Database>::Error: Freeze,

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impl<BLOCK, TX, CFG, DB, CHAIN> RefUnwindSafe for Context<BLOCK, TX, CFG, DB, CHAIN>
where TX: RefUnwindSafe, BLOCK: RefUnwindSafe, CFG: RefUnwindSafe, CHAIN: RefUnwindSafe, DB: RefUnwindSafe, <DB as Database>::Error: RefUnwindSafe,

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impl<BLOCK, TX, CFG, DB, CHAIN> Send for Context<BLOCK, TX, CFG, DB, CHAIN>
where TX: Send, BLOCK: Send, CFG: Send, CHAIN: Send, DB: Send, <DB as Database>::Error: Send,

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impl<BLOCK, TX, CFG, DB, CHAIN> Sync for Context<BLOCK, TX, CFG, DB, CHAIN>
where TX: Sync, BLOCK: Sync, CFG: Sync, CHAIN: Sync, DB: Sync, <DB as Database>::Error: Sync,

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impl<BLOCK, TX, CFG, DB, CHAIN> Unpin for Context<BLOCK, TX, CFG, DB, CHAIN>
where TX: Unpin, BLOCK: Unpin, CFG: Unpin, CHAIN: Unpin, DB: Unpin, <DB as Database>::Error: Unpin,

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impl<BLOCK, TX, CFG, DB, CHAIN> UnwindSafe for Context<BLOCK, TX, CFG, DB, CHAIN>
where TX: UnwindSafe, BLOCK: UnwindSafe, CFG: UnwindSafe, CHAIN: UnwindSafe, DB: UnwindSafe, <DB as Database>::Error: UnwindSafe,

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🔬This is a nightly-only experimental API. (clone_to_uninit)
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