Classes description language for Lua
lpeg-dev branch what internally uses lpeg in active develpment with few more features realized and features in plans. See PR to stay tuned.
| name | arguments | description |
|---|---|---|
| riwwppp.load | string str | Builds and executes class from description language code |
| riwwppp.loadFile | string filename | Builds and executes class from file |
Instructions in riwwppp are always followed by @ symbol
Example:
@class Person| name | example | description |
|---|---|---|
| pragma | @pragma safe |
Specifies pragma for builder |
| class | @class Person |
Defines class name |
| constructor | @constructor Create |
Defines constructor name |
| field | @field age |
Defines new class field (with no accessors) |
| data | @data name |
Defines new class field with setters and getters |
Example:
@class Person
@constuctor Create->
Animal = {}
function Animal:Create()
local o = {}
setmetatable(o, self)
self.__index = self
return o
end
-- Uses in internal purposes for inheritance and generates for every class
Animal._constructor = Animal.CreateIf not specified, default constructor is new
Example:
@class Person
@field wealth
@field age = 18->
Person = {}
function Person:new()
local o = {}
setmetatable(o, self)
self.__index = self
self.wealth = nil
self.age = 18
return o
end
Person._constructor = Person.newlocal Peter = Person:new()
print(Peter.age) -- 18@class Person
@data name
@data [number] age = 18
@data [number safe] money = 1000
@data [const] truth = 42->
Person = {}
function Person:new()
local o = {}
setmetatable(o, self)
self.__index = self
self.age = 18
self.money = 1000
return o
end
function Person:getName()
return self.name
end
function Person:setName(value)
self.name = value
end
function Person:getAge()
return tonumber(self.age)
end
function Person:setAge(value)
self.age = value
end
function Person:getMoney()
return tonumber(self.money)
end
function Person:setMoney(value)
if type(value) ~= "number" then error("Trying to set forbidden type for field money") end
self.money = value
end
function Person:getTruth()
return 42
end
Person._constructor = Person.new| name | description |
|---|---|
| string | Sets internal data type and adds conversion in getter |
| number | Sets internal data type and adds conversion in getter |
| table | Sets internal data type |
| safe | Adds typecheck in setter if type is setted |
| const | Adds getter with inlined value |
| name | description |
|---|---|
| capitalizeMethods | Capitalizes set and get in setters and getters |
| safe | All @data instructions have safe modifier by default |
local riwwppp = require("riwwppp")
riwwppp.debug = false -- Temporary default is true
riwwppp.load(str)
riwwppp.loadFile(filename)See here
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