Struct GasId 

pub struct GasId(u8);

Gas identifier that maps onto index in gas table.

Tuple Fields

0: u8

Implementations

impl GasId

pub const fn new(id: u8) -> GasId

Creates a new GasId with the given id.

pub const fn as_u8(&self) -> u8

Returns the id of the gas.

pub const fn as_usize(&self) -> usize

Returns the id of the gas as a usize.

pub const fn name(&self) -> &'static str

Returns the name of the gas identifier as a string.

Examples

use revm_context_interface::cfg::gas_params::GasId;

assert_eq!(GasId::exp_byte_gas().name(), "exp_byte_gas");
assert_eq!(GasId::memory_linear_cost().name(), "memory_linear_cost");
assert_eq!(GasId::sstore_static().name(), "sstore_static");

pub fn from_name(s: &str) -> Option<GasId>

Converts a string to a GasId.

Returns None if the string does not match any known gas identifier.

Examples

use revm_context_interface::cfg::gas_params::GasId;

assert_eq!(GasId::from_name("exp_byte_gas"), Some(GasId::exp_byte_gas()));
assert_eq!(GasId::from_name("memory_linear_cost"), Some(GasId::memory_linear_cost()));
assert_eq!(GasId::from_name("invalid_name"), None);

pub const fn exp_byte_gas() -> GasId

EXP gas cost per byte

pub const fn extcodecopy_per_word() -> GasId

EXTCODECOPY gas cost per word

pub const fn copy_per_word() -> GasId

Copy copy per word

pub const fn logdata() -> GasId

Log data gas cost per byte

pub const fn logtopic() -> GasId

Log topic gas cost per topic

pub const fn mcopy_per_word() -> GasId

MCOPY gas cost per word

pub const fn keccak256_per_word() -> GasId

KECCAK256 gas cost per word

pub const fn memory_linear_cost() -> GasId

Memory linear cost. Memory is additionally added as n*linear_cost.

pub const fn memory_quadratic_reduction() -> GasId

Memory quadratic reduction. Memory is additionally added as n*n/quadratic_reduction.

pub const fn initcode_per_word() -> GasId

Initcode word cost

pub const fn create() -> GasId

Create gas cost

pub const fn call_stipend_reduction() -> GasId

Call stipend reduction. Call stipend is reduced by 1/64 of the gas limit.

pub const fn transfer_value_cost() -> GasId

Transfer value cost

pub const fn cold_account_additional_cost() -> GasId

Additional cold cost. Additional cold cost is added to the gas cost if the account is cold loaded.

pub const fn new_account_cost() -> GasId

New account cost. New account cost is added to the gas cost if the account is empty.

pub const fn warm_storage_read_cost() -> GasId

Warm storage read cost. Warm storage read cost is added to the gas cost if the account is warm loaded.

Used in delegated account access to specify delegated account warm gas cost.

pub const fn sstore_static() -> GasId

Static gas cost for SSTORE opcode. This gas in comparison with other gas const needs to be deducted after check for minimal stipend gas cost. This is a reason why it is here.

pub const fn sstore_set_without_load_cost() -> GasId

SSTORE set cost additional amount after SSTORE_RESET is added.

pub const fn sstore_reset_without_cold_load_cost() -> GasId

SSTORE reset cost

pub const fn sstore_clearing_slot_refund() -> GasId

SSTORE clearing slot refund

pub const fn selfdestruct_refund() -> GasId

Selfdestruct refund.

pub const fn call_stipend() -> GasId

Call stipend checked in sstore.

pub const fn cold_storage_additional_cost() -> GasId

Cold storage additional cost.

pub const fn cold_storage_cost() -> GasId

Cold storage cost

pub const fn new_account_cost_for_selfdestruct() -> GasId

New account cost for selfdestruct.

pub const fn code_deposit_cost() -> GasId

Code deposit cost. Calculated as len * code_deposit_cost.

pub const fn tx_eip7702_per_empty_account_cost() -> GasId

EIP-7702 PER_EMPTY_ACCOUNT_COST gas

pub const fn tx_token_non_zero_byte_multiplier() -> GasId

Initial tx gas token non zero byte multiplier.

pub const fn tx_token_cost() -> GasId

Initial tx gas token cost.

pub const fn tx_floor_cost_per_token() -> GasId

Initial tx gas floor cost per token.

pub const fn tx_floor_cost_base_gas() -> GasId

Initial tx gas floor cost base gas.

pub const fn tx_access_list_address_cost() -> GasId

Initial tx gas access list address cost.

pub const fn tx_access_list_storage_key_cost() -> GasId

Initial tx gas access list storage key cost.

pub const fn tx_base_stipend() -> GasId

Initial tx gas base stipend.

pub const fn tx_create_cost() -> GasId

Initial tx gas create cost.

pub const fn tx_initcode_cost() -> GasId

Initial tx gas initcode cost per word.

pub const fn sstore_set_refund() -> GasId

SSTORE set refund. Used in sstore_refund for SSTORE_SET_GAS - SLOAD_GAS refund calculation.

pub const fn sstore_reset_refund() -> GasId

SSTORE reset refund. Used in sstore_refund for SSTORE_RESET_GAS - SLOAD_GAS refund calculation.

Trait Implementations

impl Clone for GasId

fn clone(&self) -> GasId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GasId

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

Formats the value using the given formatter.

impl Hash for GasId

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 GasId

fn eq(&self, other: &GasId) -> 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 Copy for GasId

impl Eq for GasId

impl StructuralPartialEq for GasId

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 1 byte