Module wasm_instrument::gas_metering

This module is used to instrument a Wasm module with the gas metering code.

The primary public interface is the inject function which transforms a given module into one that charges gas for code to be executed. See function documentation for usage and details.

Modules

host_function

Gas metering with an external host function.

mutable_global

Gas metering with a mutable global.

Structs

ConstantCostRules

A type that implements Rules so that every instruction costs the same.

Enums

GasMeter

Implementation details of the specific method of the gas metering.

MemoryGrowCost

Dynamic costs for memory growth.

Traits

Backend

Under the hood part of the gas metering mechanics.

Rules

An interface that describes instruction costs.

Functions

inject

Transforms a given module into one that tracks the gas charged during its execution.