reth_revm::context

Struct CfgEnv

#[non_exhaustive]
pub struct CfgEnv<SPEC = SpecId> {
    pub chain_id: u64,
    pub spec: SPEC,
    pub limit_contract_code_size: Option<usize>,
    pub disable_nonce_check: bool,
    pub blob_target_and_max_count: Vec<(SpecId, u8, u8)>,
    pub disable_block_gas_limit: bool,
    pub disable_eip3607: bool,
    pub disable_base_fee: bool,
}
Expand description

EVM configuration

Fields (Non-exhaustive)§

This struct is marked as non-exhaustive
Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.
§chain_id: u64

Chain ID of the EVM

chain_id will be compared to the transaction’s Chain ID.

Chain ID is introduced EIP-155.

§spec: SPEC

Specification for EVM represent the hardfork

§limit_contract_code_size: Option<usize>

If some it will effects EIP-170: Contract code size limit.

Useful to increase this because of tests.

By default it is 0x6000 (~25kb).

§disable_nonce_check: bool

Skips the nonce validation against the account’s nonce

§blob_target_and_max_count: Vec<(SpecId, u8, u8)>

Blob target count. EIP-7840 Add blob schedule to EL config files.

Note : Items must be sorted by SpecId.

§disable_block_gas_limit: bool
Available on crate feature optional_block_gas_limit only.

There are use cases where it’s allowed to provide a gas limit that’s higher than a block’s gas limit.

To that end, you can disable the block gas limit validation.

By default, it is set to false.

§disable_eip3607: bool
Available on crate feature optional_eip3607 only.

EIP-3607 rejects transactions from senders with deployed code

In development, it can be desirable to simulate calls from contracts, which this setting allows.

By default, it is set to false.

§disable_base_fee: bool
Available on crate feature optional_no_base_fee only.

Disables base fee checks for EIP-1559 transactions

This is useful for testing method calls with zero gas price.

By default, it is set to false.

Implementations§

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impl CfgEnv

pub fn new() -> CfgEnv

Creates new CfgEnv with default values.

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impl<SPEC> CfgEnv<SPEC>

pub fn new_with_spec(spec: SPEC) -> CfgEnv<SPEC>

pub fn with_chain_id(self, chain_id: u64) -> CfgEnv<SPEC>

pub fn with_spec<OSPEC>(self, spec: OSPEC) -> CfgEnv<OSPEC>
where OSPEC: Into<SpecId>,

pub fn set_blob_max_and_target_count(&mut self, vec: Vec<(SpecId, u8, u8)>)

Sets the blob target and max count over hardforks.

Trait Implementations§

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impl<SPEC> Cfg for CfgEnv<SPEC>
where SPEC: Into<SpecId> + Copy,

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fn is_block_gas_limit_disabled(&self) -> bool

Returns true if the block gas limit is disabled.

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type Spec = SPEC

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fn chain_id(&self) -> u64

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fn spec(&self) -> <CfgEnv<SPEC> as Cfg>::Spec

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fn blob_max_count(&self, spec_id: SpecId) -> u8

Returns the blob target and max count for the given spec id. Read more
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fn max_code_size(&self) -> usize

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fn is_eip3607_disabled(&self) -> bool

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fn is_balance_check_disabled(&self) -> bool

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fn is_nonce_check_disabled(&self) -> bool

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fn is_base_fee_check_disabled(&self) -> bool

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impl<SPEC> Clone for CfgEnv<SPEC>
where SPEC: Clone,

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fn clone(&self) -> CfgEnv<SPEC>

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<SPEC> Debug for CfgEnv<SPEC>
where SPEC: Debug,

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl<SPEC> Default for CfgEnv<SPEC>
where SPEC: Default,

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fn default() -> CfgEnv<SPEC>

Returns the “default value” for a type. Read more
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impl<'de, SPEC> Deserialize<'de> for CfgEnv<SPEC>
where SPEC: Deserialize<'de>,

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fn deserialize<__D>( __deserializer: __D, ) -> Result<CfgEnv<SPEC>, <__D as Deserializer<'de>>::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl<SPEC> PartialEq for CfgEnv<SPEC>
where SPEC: PartialEq,

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fn eq(&self, other: &CfgEnv<SPEC>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<SPEC> Serialize for CfgEnv<SPEC>
where SPEC: Serialize,

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fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl<SPEC> Eq for CfgEnv<SPEC>
where SPEC: Eq,

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impl<SPEC> StructuralPartialEq for CfgEnv<SPEC>

Auto Trait Implementations§

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impl<SPEC> Freeze for CfgEnv<SPEC>
where SPEC: Freeze,

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impl<SPEC> RefUnwindSafe for CfgEnv<SPEC>
where SPEC: RefUnwindSafe,

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impl<SPEC> Send for CfgEnv<SPEC>
where SPEC: Send,

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impl<SPEC> Sync for CfgEnv<SPEC>
where SPEC: Sync,

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impl<SPEC> Unpin for CfgEnv<SPEC>
where SPEC: Unpin,

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impl<SPEC> UnwindSafe for CfgEnv<SPEC>
where SPEC: UnwindSafe,

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🔬This is a nightly-only experimental API. (clone_to_uninit #126799)
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impl<TxEnv, T> FromRecoveredTx<&T> for TxEnv
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fn from_recovered_tx(tx: &&T, sender: Address) -> TxEnv

Builds a TxEnv from a transaction and a sender address.
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