Struct CustomConstantCostRules

pub struct CustomConstantCostRules { /* private fields */ }

This type provides the functionality of ConstantCostRules.

This implementation of Rules will also check the WASM module for instructions that are not supported by Gear Protocol.

Implementations

impl CustomConstantCostRules

pub fn new( instruction_cost: u32, memory_grow_cost: u32, call_per_local_cost: u32, ) -> Self

Create a new CustomConstantCostRules.

Uses instruction_cost for every instruction and memory_grow_cost to dynamically meter the memory growth instruction.

Trait Implementations

impl Default for CustomConstantCostRules

fn default() -> Self

Uses instruction cost of 1 and disables memory growth instrumentation.

impl Rules for CustomConstantCostRules

fn instruction_cost(&self, instruction: &Instruction) -> Option<u32>

Returns the cost for the passed instruction.

fn memory_grow_cost(&self) -> MemoryGrowCost

Returns the costs for growing the memory using the memory.grow instruction.

fn call_per_local_cost(&self) -> u32

A surcharge cost to calling a function that is added per local variable of the function.