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Allow for named components

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This commit is contained in:
Tjakka5 2019-12-11 13:04:09 +01:00
parent f7e1be8e1d
commit bc47eaa651
2 changed files with 53 additions and 1 deletions
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17
src/component.lua
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@ -6,8 +6,21 @@ Component.__index = Component
--- Creates a new Component.
-- @param populate A function that populates the Bag with values
-- @return A Component object
function Component.new(populate)
function Component.new(name, populate)
if (type(name) ~= "string") then
error("bad argument #1 to 'Component.new' (string expected, got "..type(name)..")", 2)
end
if not (populate == nil or type(populate) == "function") then
error("bad argument #2 to 'Component.new' (function/nil expected, got "..type(populate)..")", 2)
end
if (Component[name] ~= nil) then
error("bad argument #2 to 'Component.new' (Component with name '"..name.."' already exists", 2)
end
local component = setmetatable({
__name = name,
__populate = populate,
__isComponent = true,
@ -15,6 +28,8 @@ function Component.new(populate)
component.__mt = {__index = component}
Component[name] = component
return component
end