struct

ever want type safe data structures in pure lua? you've came to the right place!

Installation

Install luarocks then run luarocks install luastruct then you can use it in your programs via

local struct = require "struct"

Example

local struct = require "struct"

-- create a new struct
person = struct {
  name = "default name",
  age  = 21
}

-- add a method (function) to the struct person, this will be added to every new
-- person and can be called with "name:hello()" where "name" is the new person.
function person:hello()
  print(self.name.." says hello")
end

-- create a new person "uli"
local uli = person {
  name = "uli",
  age  = 14
}

-- create a new person "james"
local james = person {
  name = "james",
  age  = 13
}

uli:hello()   --> uli says hello
james:hello() --> james says hello

-- also works with defaults
local default = person {}

default:hello()     --> default name says hello
print(default.age)  --> 21
print(default.name) --> "default name"

-- however, if we supply a wrong type an error will be raised,
local invalid = person {
	name = 10,
	age = "invalid",
}

all of this works with nested tables as well :)