lua

Global Lua Environment Service

The purpose of this Service Mesh service is to manage the state of a single lua state machine. Other services are intended to implement an exported integration interface in order to populate the state machine with anything they want. Any type of lua API for a given service should be exposed through this service. It is recommended that other services document their API in either a README.md or in a LUA.md

Dependencies

This service depends upon the config file service and will initialize its own default config.

Integration with other services

This service exports an integration interface ManagesLuaEnvironment with an alias Dependencncy which are intended to be used by other services for dependency resolution (see servicemesh.HasDependencies), and expose just the methods which other services should use.

Another service may merely store a reference to this service and use the lua state machine explicitly with the folloing interface:

type Dependency = ManagesLuaEnvironment

type ManagesLuaEnvironment interface {
    LuaState() *lua.LState
}

Other services should use the ManagesLuaEnvironment or Dependency interfaces to resolve their dependency on this service.

However, implementors of the following interface methods are invoked by the lua service indirectly whenever the service is added or removed from the servicemesh.

type UsesLuaEnvironment interface {
    ExportToLua(state *lua.LState)
    UnexportFromLua(state *lua.LState)
}