Struct Config

pub struct Config {
    pub ext_costs: ExtCostsConfig,
    pub grow_mem_cost: u32,
    pub regular_op_cost: u32,
    pub vm_kind: VMKind,
    pub storage_get_mode: StorageGetMode,
    pub fix_contract_loading_cost: bool,
    pub implicit_account_creation: bool,
    pub eth_implicit_accounts: bool,
    pub discard_custom_sections: bool,
    pub saturating_float_to_int: bool,
    pub global_contract_host_fns: bool,
    pub limit_config: LimitConfig,
}

Dynamic configuration parameters required for the WASM runtime to execute a smart contract.

This (VMConfig) and RuntimeFeesConfig combined are sufficient to define protocol specific behavior of the contract runtime. The former contains configuration for the WASM runtime specifically, while the latter contains configuration for the transaction runtime and WASM runtime.

Fields

ext_costs: ExtCostsConfig

Costs for runtime externals

grow_mem_cost: u32

Gas cost of a growing memory by single page.

regular_op_cost: u32

Gas cost of a regular operation.

vm_kind: VMKind

The kind of the VM implementation to use

storage_get_mode: StorageGetMode

Set to StorageGetMode::FlatStorage in order to enable the FlatStorageReads protocol feature.

fix_contract_loading_cost: bool

Enable the FixContractLoadingCost protocol feature.

implicit_account_creation: bool

Enable the ImplicitAccountCreation protocol feature.

eth_implicit_accounts: bool

Enable the EthImplicitAccounts protocol feature.

discard_custom_sections: bool

Whether to discard custom sections.

saturating_float_to_int: bool

Whether to enable saturating float-to-integer wasm operators.

global_contract_host_fns: bool

Whether to enable global contract related host functions.

limit_config: LimitConfig

Describes limits for VM and Runtime.

Implementations

impl Config

pub fn non_crypto_hash(&self) -> u64

Computes non-cryptographically-proof hash. The computation is fast but not cryptographically secure.

pub fn make_free(&mut self)

pub fn enable_all_features(&mut self)

Trait Implementations

impl Clone for Config

fn clone(&self) -> Config

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Config

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

Formats the value using the given formatter.

impl From<Config> for VMConfigView

fn from(config: Config) -> Self

Converts to this type from the input type.

impl From<VMConfigView> for Config

fn from(view: VMConfigView) -> Self

Converts to this type from the input type.

impl Hash for Config

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 Config

fn eq(&self, other: &Config) -> 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 Config

impl StructuralPartialEq for Config