CfgEnv

Struct CfgEnv 

#[non_exhaustive]
pub struct CfgEnv<SPEC = SpecId> {
Show 14 fields pub chain_id: u64, pub tx_chain_id_check: bool, pub spec: SPEC, pub limit_contract_code_size: Option<usize>, pub limit_contract_initcode_size: Option<usize>, pub disable_nonce_check: bool, pub max_blobs_per_tx: Option<u64>, pub blob_base_fee_update_fraction: Option<u64>, pub tx_gas_limit_cap: Option<u64>, pub disable_balance_check: bool, pub disable_block_gas_limit: bool, pub disable_eip3541: 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. Used in CHAINID opcode and transaction’s chain ID check.

Chain ID is introduced EIP-155.

§tx_chain_id_check: bool

Whether to check the transaction’s chain ID.

If set to false, the transaction’s chain ID check will be skipped.

§spec: SPEC

Specification for EVM represent the hardfork

§limit_contract_code_size: Option<usize>

Contract code size limit override.

If None, the limit will be determined by the SpecId (EIP-170 or EIP-7907) at runtime. If Some, this specific limit will be used regardless of SpecId.

Useful to increase this because of tests.

§limit_contract_initcode_size: Option<usize>

Contract initcode size limit override.

If None, the limit will check if limit_contract_code_size is set. If it is set, it will double it for a limit. If it is not set, the limit will be determined by the SpecId (EIP-170 or EIP-7907) at runtime.

Useful to increase this because of tests.

§disable_nonce_check: bool

Skips the nonce validation against the account’s nonce

§max_blobs_per_tx: Option<u64>

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

If this config is not set, the check for max blobs will be skipped.

§blob_base_fee_update_fraction: Option<u64>

Blob base fee update fraction. EIP-4844 Blob base fee update fraction.

If this config is not set, the blob base fee update fraction will be set to the default value. See also CfgEnv::blob_base_fee_update_fraction.

Default values for Cancun is primitives::eip4844::BLOB_BASE_FEE_UPDATE_FRACTION_CANCUN and for Prague is primitives::eip4844::BLOB_BASE_FEE_UPDATE_FRACTION_PRAGUE.

§tx_gas_limit_cap: Option<u64>

Configures the gas limit cap for the transaction.

If None, default value defined by spec will be used.

Introduced in Osaka in EIP-7825: Transaction Gas Limit Cap with initials cap of 30M.

§disable_balance_check: bool

Skip balance checks if true

Adds transaction cost to balance to ensure execution doesn’t fail.

By default, it is set to false.

§disable_block_gas_limit: bool

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_eip3541: bool

EIP-3541 rejects the creation of contracts that starts with 0xEF

This is useful for chains that do not implement EIP-3541.

By default, it is set to false.

§disable_eip3607: bool

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

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>
where SPEC: Into<SpecId> + Copy,

pub fn blob_base_fee_update_fraction(&mut self) -> u64

Returns the blob base fee update fraction from CfgEnv::blob_base_fee_update_fraction.

If this field is not set, return the default value for the spec.

Default values for Cancun is primitives::eip4844::BLOB_BASE_FEE_UPDATE_FRACTION_CANCUN and for Prague is primitives::eip4844::BLOB_BASE_FEE_UPDATE_FRACTION_PRAGUE.

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impl<SPEC> CfgEnv<SPEC>

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

Create new CfgEnv with default values and specified spec.

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

Consumes self and returns a new CfgEnv with the specified chain ID.

pub fn enable_tx_chain_id_check(self) -> CfgEnv<SPEC>

Enables the transaction’s chain ID check.

pub fn disable_tx_chain_id_check(self) -> CfgEnv<SPEC>

Disables the transaction’s chain ID check.

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

Consumes self and returns a new CfgEnv with the specified spec.

pub fn with_max_blobs_per_tx(self, max_blobs_per_tx: u64) -> CfgEnv<SPEC>

Sets the blob target

pub fn set_max_blobs_per_tx(&mut self, max_blobs_per_tx: u64)

Sets the blob target

pub fn clear_max_blobs_per_tx(&mut self)

Clears 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

Specification id type, it requires to be convertible to SpecId so it can be used by default in mainnet.
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fn chain_id(&self) -> u64

Returns the chain ID of the EVM that is compared with the transaction’s chain ID.
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fn spec(&self) -> <CfgEnv<SPEC> as Cfg>::Spec

Specification id
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fn tx_chain_id_check(&self) -> bool

Returns whether the transaction’s chain ID check is enabled.
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fn tx_gas_limit_cap(&self) -> u64

Returns the gas limit cap for the transaction. Read more
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fn max_blobs_per_tx(&self) -> Option<u64>

Returns the maximum number of blobs allowed per transaction. If it is None, check for max count will be skipped.
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fn max_code_size(&self) -> usize

Returns the maximum code size for the given spec id.
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fn max_initcode_size(&self) -> usize

Returns the max initcode size for the given spec id.
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fn is_eip3541_disabled(&self) -> bool

Returns whether the EIP-3541 (disallowing new contracts with 0xEF prefix) is disabled.
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fn is_eip3607_disabled(&self) -> bool

Returns whether the EIP-3607 (account clearing) is disabled.
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fn is_balance_check_disabled(&self) -> bool

Returns whether the balance check is disabled.
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fn is_nonce_check_disabled(&self) -> bool

Returns whether the nonce check is disabled.
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fn is_base_fee_check_disabled(&self) -> bool

Returns whether the base fee check is disabled.
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fn is_priority_fee_check_disabled(&self) -> bool

Returns whether the priority fee check is disabled.
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impl<SPEC> Clone for CfgEnv<SPEC>
where SPEC: Clone,

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

Returns a duplicate of the value. Read more
1.0.0 · Source§

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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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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Immutably borrows from an owned value. Read more
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Mutably borrows from an owned value. Read more
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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit #126799)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<TxEnv, T> FromRecoveredTx<&T> for TxEnv
where TxEnv: FromRecoveredTx<T>,

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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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impl<TxEnv, T> FromTxWithEncoded<&T> for TxEnv
where TxEnv: FromTxWithEncoded<T>,

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fn from_encoded_tx(tx: &&T, sender: Address, encoded: Bytes) -> TxEnv

Builds a TxEnv from a transaction, its sender, and encoded transaction bytes.
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Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn paint<S>(&self, style: S) -> Painted<&Self>
where S: Into<Style>,

Apply a style wholesale to self. Any previous style is replaced. Read more
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impl<T> Pipe for T
where T: ?Sized,

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fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
where Self: Sized,

Pipes by value. This is generally the method you want to use. Read more
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fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R
where R: 'a,

Borrows self and passes that borrow into the pipe function. Read more
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fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R
where R: 'a,

Mutably borrows self and passes that borrow into the pipe function. Read more
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fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R
where Self: Borrow<B>, B: 'a + ?Sized, R: 'a,

Borrows self, then passes self.borrow() into the pipe function. Read more
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fn pipe_borrow_mut<'a, B, R>( &'a mut self, func: impl FnOnce(&'a mut B) -> R, ) -> R
where Self: BorrowMut<B>, B: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.borrow_mut() into the pipe function. Read more
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fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R
where Self: AsRef<U>, U: 'a + ?Sized, R: 'a,

Borrows self, then passes self.as_ref() into the pipe function.
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fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R
where Self: AsMut<U>, U: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.as_mut() into the pipe function.
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fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R
where Self: Deref<Target = T>, T: 'a + ?Sized, R: 'a,

Borrows self, then passes self.deref() into the pipe function.
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fn pipe_deref_mut<'a, T, R>( &'a mut self, func: impl FnOnce(&'a mut T) -> R, ) -> R
where Self: DerefMut<Target = T> + Deref, T: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.deref_mut() into the pipe function.
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] only if self and other return Action::Follow. Read more
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fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] if either self or other returns Action::Follow. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ServiceExt for T

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fn propagate_header(self, header: HeaderName) -> PropagateHeader<Self>
where Self: Sized,

Propagate a header from the request to the response. Read more
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fn add_extension<T>(self, value: T) -> AddExtension<Self, T>
where Self: Sized,

Add some shareable value to request extensions. Read more
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fn map_request_body<F>(self, f: F) -> MapRequestBody<Self, F>
where Self: Sized,

Apply a transformation to the request body. Read more
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fn map_response_body<F>(self, f: F) -> MapResponseBody<Self, F>
where Self: Sized,

Apply a transformation to the response body. Read more
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fn compression(self) -> Compression<Self>
where Self: Sized,

Compresses response bodies. Read more
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fn decompression(self) -> Decompression<Self>
where Self: Sized,

Decompress response bodies. Read more
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fn trace_for_http(self) -> Trace<Self, SharedClassifier<ServerErrorsAsFailures>>
where Self: Sized,

High level tracing that classifies responses using HTTP status codes. Read more
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fn trace_for_grpc(self) -> Trace<Self, SharedClassifier<GrpcErrorsAsFailures>>
where Self: Sized,

High level tracing that classifies responses using gRPC headers. Read more
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fn follow_redirects(self) -> FollowRedirect<Self>
where Self: Sized,

Follow redirect resposes using the Standard policy. Read more
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fn sensitive_headers( self, headers: impl IntoIterator<Item = HeaderName>, ) -> SetSensitiveRequestHeaders<SetSensitiveResponseHeaders<Self>>
where Self: Sized,

Mark headers as sensitive on both requests and responses. Read more
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fn sensitive_request_headers( self, headers: impl IntoIterator<Item = HeaderName>, ) -> SetSensitiveRequestHeaders<Self>
where Self: Sized,

Mark headers as sensitive on requests. Read more
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fn sensitive_response_headers( self, headers: impl IntoIterator<Item = HeaderName>, ) -> SetSensitiveResponseHeaders<Self>
where Self: Sized,

Mark headers as sensitive on responses. Read more
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fn override_request_header<M>( self, header_name: HeaderName, make: M, ) -> SetRequestHeader<Self, M>
where Self: Sized,

Insert a header into the request. Read more
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fn append_request_header<M>( self, header_name: HeaderName, make: M, ) -> SetRequestHeader<Self, M>
where Self: Sized,

Append a header into the request. Read more
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fn insert_request_header_if_not_present<M>( self, header_name: HeaderName, make: M, ) -> SetRequestHeader<Self, M>
where Self: Sized,

Insert a header into the request, if the header is not already present. Read more
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fn override_response_header<M>( self, header_name: HeaderName, make: M, ) -> SetResponseHeader<Self, M>
where Self: Sized,

Insert a header into the response. Read more
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fn append_response_header<M>( self, header_name: HeaderName, make: M, ) -> SetResponseHeader<Self, M>
where Self: Sized,

Append a header into the response. Read more
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fn insert_response_header_if_not_present<M>( self, header_name: HeaderName, make: M, ) -> SetResponseHeader<Self, M>
where Self: Sized,

Insert a header into the response, if the header is not already present. Read more
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fn set_request_id<M>( self, header_name: HeaderName, make_request_id: M, ) -> SetRequestId<Self, M>
where Self: Sized, M: MakeRequestId,

Add request id header and extension. Read more
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fn set_x_request_id<M>(self, make_request_id: M) -> SetRequestId<Self, M>
where Self: Sized, M: MakeRequestId,

Add request id header and extension, using x-request-id as the header name. Read more
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fn propagate_request_id( self, header_name: HeaderName, ) -> PropagateRequestId<Self>
where Self: Sized,

Propgate request ids from requests to responses. Read more
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fn propagate_x_request_id(self) -> PropagateRequestId<Self>
where Self: Sized,

Propgate request ids from requests to responses, using x-request-id as the header name. Read more
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fn catch_panic(self) -> CatchPanic<Self, DefaultResponseForPanic>
where Self: Sized,

Catch panics and convert them into 500 Internal Server responses. Read more
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fn request_body_limit(self, limit: usize) -> RequestBodyLimit<Self>
where Self: Sized,

Intercept requests with over-sized payloads and convert them into 413 Payload Too Large responses. Read more
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fn trim_trailing_slash(self) -> NormalizePath<Self>
where Self: Sized,

Remove trailing slashes from paths. Read more
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fn append_trailing_slash(self) -> NormalizePath<Self>
where Self: Sized,

Append trailing slash to paths. Read more
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impl<T> Tap for T

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fn tap(self, func: impl FnOnce(&Self)) -> Self

Immutable access to a value. Read more
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fn tap_mut(self, func: impl FnOnce(&mut Self)) -> Self

Mutable access to a value. Read more
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fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Immutable access to the Borrow<B> of a value. Read more
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fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Mutable access to the BorrowMut<B> of a value. Read more
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fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Immutable access to the AsRef<R> view of a value. Read more
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fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Mutable access to the AsMut<R> view of a value. Read more
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fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Immutable access to the Deref::Target of a value. Read more
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fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Mutable access to the Deref::Target of a value. Read more
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fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self

Calls .tap() only in debug builds, and is erased in release builds.
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fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self

Calls .tap_mut() only in debug builds, and is erased in release builds.
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fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Calls .tap_borrow() only in debug builds, and is erased in release builds.
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fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Calls .tap_borrow_mut() only in debug builds, and is erased in release builds.
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fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Calls .tap_ref() only in debug builds, and is erased in release builds.
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fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds.
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fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds.
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fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> TryClone for T
where T: Clone,

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fn try_clone(&self) -> Result<T, Error>

Clones self, possibly returning an error.
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impl<T> TryConv for T

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fn try_conv<T>(self) -> Result<T, Self::Error>
where Self: TryInto<T>,

Attempts to convert self into T using TryInto<T>. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<'de, T> BorrowedRpcObject<'de> for T
where T: RpcBorrow<'de> + RpcSend,

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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> MaybeDebug for T
where T: Debug,

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impl<T> MaybeSend for T
where T: Send,

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impl<T> MaybeSendSync for T

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impl<T> MaybeSerde for T
where T: Serialize + for<'de> Deserialize<'de>,

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impl<T> NippyJarHeader for T
where T: Send + Sync + Serialize + for<'b> Deserialize<'b> + Debug + 'static,

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impl<'de, T> RpcBorrow<'de> for T
where T: Deserialize<'de> + Debug + Send + Sync + Unpin,

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impl<T> RpcObject for T
where T: RpcSend + RpcRecv,

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impl<T> RpcRecv for T
where T: DeserializeOwned + Debug + Send + Sync + Unpin + 'static,

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impl<T> RpcSend for T
where T: Serialize + Clone + Debug + Send + Sync + Unpin,

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Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.