Struct BlockEnv 

pub struct BlockEnv {
    pub number: U256,
    pub beneficiary: Address,
    pub timestamp: U256,
    pub gas_limit: u64,
    pub basefee: u64,
    pub difficulty: U256,
    pub prevrandao: Option<B256>,
    pub blob_excess_gas_and_price: Option<BlobExcessGasAndPrice>,
}

The block environment

Fields

number: U256

The number of ancestor blocks of this block (block height).

beneficiary: Address

Beneficiary (Coinbase or miner) is a address that have signed the block.

This is the receiver address of all the gas spent in the block.

timestamp: U256

The timestamp of the block in seconds since the UNIX epoch

gas_limit: u64

The gas limit of the block

basefee: u64

The base fee per gas, added in the London upgrade with EIP-1559

difficulty: U256

The difficulty of the block

Unused after the Paris (AKA the merge) upgrade, and replaced by prevrandao.

prevrandao: Option<B256>

The output of the randomness beacon provided by the beacon chain

Replaces difficulty after the Paris (AKA the merge) upgrade with EIP-4399.

Note: prevrandao can be found in a block in place of mix_hash.

blob_excess_gas_and_price: Option<BlobExcessGasAndPrice>

Excess blob gas and blob gasprice

Incorporated as part of the Cancun upgrade via EIP-4844.

Implementations

impl BlockEnv

pub fn set_blob_excess_gas_and_price( &mut self, excess_blob_gas: u64, base_fee_update_fraction: u64, )

Takes blob_excess_gas saves it inside env and calculates blob_fee with [BlobExcessGasAndPrice].

Trait Implementations

impl Block for BlockEnv

fn number(&self) -> U256

The number of ancestor blocks of this block (block height).

fn beneficiary(&self) -> Address

Beneficiary (Coinbase, miner) is an address that has signed the block.

fn timestamp(&self) -> U256

The timestamp of the block in seconds since the UNIX epoch.

fn gas_limit(&self) -> u64

The gas limit of the block.

fn basefee(&self) -> u64

The base fee per gas, added in the London upgrade with EIP-1559.

fn difficulty(&self) -> U256

The difficulty of the block.

fn prevrandao(&self) -> Option<B256>

The output of the randomness beacon provided by the beacon chain.

fn blob_excess_gas_and_price(&self) -> Option<BlobExcessGasAndPrice>

Excess blob gas and blob gasprice.

fn blob_gasprice(&self) -> Option<u128>

See EIP-4844 and [calc_blob_gasprice].

fn blob_excess_gas(&self) -> Option<u64>

Return blob_excess_gas header field. See EIP-4844.

impl Clone for BlockEnv

fn clone(&self) -> BlockEnv

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BlockEnv

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

Formats the value using the given formatter.

impl Default for BlockEnv

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for BlockEnv

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for BlockEnv

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for BlockEnv

fn eq(&self, other: &BlockEnv) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for BlockEnv

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for BlockEnv

impl StructuralPartialEq for BlockEnv