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74 lines
3 KiB
Lua
74 lines
3 KiB
Lua
if not game then script = require "test/relative-string" end
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local typeof = game and typeof or require "test/mock".typeof:: never
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local Instance = game and Instance or require "test/mock".Instance :: never
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local throw = require(script.Parent.throw)
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local defaults = require(script.Parent.defaults)
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local apply = require(script.Parent.apply)
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local memoize = require(script.Parent.memoize)
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local function create_instance(class: string)
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local ok, instance: Instance = pcall(Instance.new, class :: any)
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if not ok then throw(`invalid class name, could not create instance of class { class }`) end
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local default: { [string]: unknown }? = defaults[class]
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if default then
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for i, v in next, default do
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(instance :: any)[i] = v
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end
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end
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return function(properties: { [any]: unknown }): Instance
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return apply(instance:Clone(), properties)
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end
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end; create_instance = memoize(create_instance) -- always return same constructor for given class
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local function clone_instance(instance: Instance)
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return function(properties: { [any]: unknown }): Instance
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local clone = instance:Clone()
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if not clone then error("Attempt to clone a non-archivable instance", 3) end
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return apply(clone, properties)
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end
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end
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local function create(class_or_instance: string|Instance)
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if type(class_or_instance) == "string" then
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return create_instance(class_or_instance)
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elseif typeof(class_or_instance) == "Instance" then
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return clone_instance(class_or_instance)
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else
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throw("bad argument #1, expected string or instance, got "..typeof(class_or_instance))
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end
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return nil :: never
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end
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type Props = { [any]: any }
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return (create :: any) ::
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( <T>(T & Instance) -> (Props) -> T ) &
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( ("Folder") -> (Props) -> Folder ) &
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( ("BillboardGui") -> (Props) -> BillboardGui ) &
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( ("CanvasGroup") -> (Props) -> CanvasGroup ) &
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( ("Frame") -> (Props) -> Frame ) &
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( ("ImageButton") -> (Props) -> ImageButton ) &
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( ("ImageLabel") -> (Props) -> ImageLabel ) &
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( ("ScreenGui") -> (Props) -> ScreenGui ) &
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( ("ScrollingFrame") -> (Props) -> ScrollingFrame ) &
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( ("SurfaceGui") -> (Props) -> SurfaceGui ) &
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( ("TextBox") -> (Props) -> TextBox ) &
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( ("TextButton") -> (Props) -> TextButton ) &
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( ("TextLabel") -> (Props) -> TextLabel ) &
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( ("UIAspectRatioConstraint") -> (Props) -> UIAspectRatioConstraint ) &
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( ("UICorner") -> (Props) -> UICorner ) &
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( ("UIGradient") -> (Props) -> UIGradient ) &
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( ("UIGridLayout") -> (Props) -> UIGridLayout ) &
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( ("UIListLayout") -> (Props) -> UIListLayout ) &
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( ("UIPadding") -> (Props) -> UIPadding ) &
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( ("UIPageLayout") -> (Props) -> UIPageLayout ) &
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( ("UIScale") -> (Props) -> UIScale ) &
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( ("UISizeConstraint") -> (Props) -> UISizeConstraint ) &
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( ("UIStroke") -> (Props) -> UIStroke ) &
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( ("UITableLayout") -> (Props) -> UITableLayout ) &
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( ("UITextSizeConstraint") -> (Props) -> UITextSizeConstraint ) &
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( ("VideoFrame") -> (Props) -> VideoFrame ) &
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( ("ViewportFrame") -> (Props) -> ViewportFrame ) &
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( (string) -> (Props) -> Instance )
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