Struct BlockEnv

pub struct BlockEnv {
    pub number: Uint<256, 4>,
    pub coinbase: Address,
    pub timestamp: Uint<256, 4>,
    pub gas_limit: Uint<256, 4>,
    pub basefee: Uint<256, 4>,
    pub difficulty: Uint<256, 4>,
    pub prevrandao: Option<FixedBytes<32>>,
    pub blob_excess_gas_and_price: Option<BlobExcessGasAndPrice>,
}

The block environment.

Fields

number: Uint<256, 4>

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

coinbase: Address

Coinbase or miner or address that created and signed the block.

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

timestamp: Uint<256, 4>

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

gas_limit: Uint<256, 4>

The gas limit of the block.

basefee: Uint<256, 4>

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

difficulty: Uint<256, 4>

The difficulty of the block.

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

prevrandao: Option<FixedBytes<32>>

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. See also crate::calc_excess_blob_gas and calc_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)

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

pub fn get_blob_gasprice(&self) -> Option<u128>

See EIP-4844 and crate::calc_blob_gasprice.

Returns None if Cancun is not enabled. This is enforced in Env::validate_block_env.

pub fn get_blob_excess_gas(&self) -> Option<u64>

Return blob_excess_gas header field. See EIP-4844.

Returns None if Cancun is not enabled. This is enforced in Env::validate_block_env.

pub fn clear(&mut self)

Clears environment and resets fields to default values.

Trait Implementations

impl Clone for BlockEnv

fn clone(&self) -> BlockEnv

Returns a copy 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<(), Error>

Formats the value using the given formatter.

impl Default for BlockEnv

fn default() -> BlockEnv

Returns the “default value” for a type.

impl Hash for BlockEnv

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

where __H: Hasher,

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 Eq for BlockEnv

impl StructuralPartialEq for BlockEnv