Module 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.