Struct casper_execution_engine::shared::wasm_config::WasmConfig

pub struct WasmConfig {
    pub max_memory: u32,
    pub max_stack_height: u32,
    /* private fields */
}

Configuration of the Wasm execution environment.

This structure contains various Wasm execution configuration options, such as memory limits, stack limits and costs.

Fields

max_memory: u32

Maximum amount of heap memory (represented in 64kB pages) each contract can use.

max_stack_height: u32

Max stack height (native WebAssembly stack limiter).

Implementations

impl WasmConfig

pub const fn new( max_memory: u32, max_stack_height: u32, opcode_costs: OpcodeCosts, storage_costs: StorageCosts, host_function_costs: HostFunctionCosts, ) -> Self

Creates new Wasm config.

pub fn opcode_costs(&self) -> OpcodeCosts

Returns opcode costs.

pub fn storage_costs(&self) -> StorageCosts

Returns storage costs.

pub fn take_host_function_costs(self) -> HostFunctionCosts

Returns host function costs and consumes this object.

Trait Implementations

impl Clone for WasmConfig

fn clone(&self) -> WasmConfig

Returns a copy of the value.

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

Performs copy-assignment from source.

impl DataSize for WasmConfig

const IS_DYNAMIC: bool = false

If true, the type has a heap size that can vary at runtime, depending on the actual value.

const STATIC_HEAP_SIZE: usize = 0usize

The amount of space a value of the type always occupies. If IS_DYNAMIC is false, this is the total amount of heap memory occupied by the value. Otherwise this is a lower bound.

fn estimate_heap_size(&self) -> usize

Estimates the size of heap memory taken up by this value.

impl Debug for WasmConfig

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

Formats the value using the given formatter.

impl Default for WasmConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for WasmConfig

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Distribution<WasmConfig> for Standard

fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> WasmConfig

Generate a random value of T, using rng as the source of randomness.

fn sample_iter<R>(self, rng: R) -> DistIter<Self, R, T>

where R: Rng, Self: Sized,

Create an iterator that generates random values of T, using rng as the source of randomness.

fn map<F, S>(self, func: F) -> DistMap<Self, F, T, S>

where F: Fn(T) -> S, Self: Sized,

Create a distribution of values of ‘S’ by mapping the output of Self through the closure F

impl FromBytes for WasmConfig

fn from_bytes(bytes: &[u8]) -> Result<(Self, &[u8]), Error>

Deserializes the slice into Self.

fn from_vec(bytes: Vec<u8>) -> Result<(Self, Vec<u8>), Error>

Deserializes the Vec<u8> into Self.

impl PartialEq for WasmConfig

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl ToBytes for WasmConfig

fn to_bytes(&self) -> Result<Vec<u8>, Error>

Serializes &self to a Vec<u8>.

fn serialized_length(&self) -> usize

Returns the length of the Vec<u8> which would be returned from a successful call to to_bytes() or into_bytes(). The data is not actually serialized, so this call is relatively cheap.

fn into_bytes(self) -> Result<Vec<u8>, Error>

where Self: Sized,

Consumes self and serializes to a Vec<u8>.

fn write_bytes(&self, writer: &mut Vec<u8>) -> Result<(), Error>

Writes &self into a mutable writer.

impl Copy for WasmConfig

impl Eq for WasmConfig

impl StructuralPartialEq for WasmConfig