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63 lines
1.9 KiB
Text
63 lines
1.9 KiB
Text
local roblox = require("@lune/roblox")
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local inst = roblox.Instance.new("Instance") :: any
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local part = roblox.Instance.new("Part") :: any
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-- Basic sanity checks for callbacks
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local success = pcall(function()
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local _ = inst.Wat
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end)
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assert(not success, "Nonexistent properties should error")
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roblox.implementProperty("Instance", "Wat", function()
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return nil
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end)
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local success2 = pcall(function()
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local _ = inst.Wat
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end)
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assert(success2, "Nonexistent properties should error, unless implemented")
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-- Instance should be passed to callback
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roblox.implementProperty("Instance", "PassingInstanceTest", function(instance)
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assert(instance == inst, "Invalid instance was passed to callback")
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return nil
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end)
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roblox.implementProperty("Part", "PassingPartTest", function(instance)
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assert(instance == part, "Invalid instance was passed to callback")
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return nil
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end)
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local _ = inst.PassingInstanceTest
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local _ = part.PassingPartTest
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-- Any number of args passed & returned should work
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local counters = {}
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roblox.implementProperty("Instance", "Counter", function(instance)
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local value = counters[instance:GetDebugId()] or 0
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value += 1
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counters[instance:GetDebugId()] = value
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return value
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end, function(instance, value)
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counters[instance:GetDebugId()] = value
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end)
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assert(inst.Counter == 1, "implementProperty callback should return proper values")
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assert(inst.Counter == 2, "implementProperty callback should return proper values")
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assert(inst.Counter == 3, "implementProperty callback should return proper values")
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inst.Counter = 10
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assert(inst.Counter == 11, "implementProperty callback should set proper values")
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assert(inst.Counter == 12, "implementProperty callback should return proper values")
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assert(inst.Counter == 13, "implementProperty callback should return proper values")
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-- Properties implemented by Lune should take precedence
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roblox.implementProperty("Instance", "Parent", function()
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error("unreachable")
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end)
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local _ = inst.Parent
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local _ = part.Parent
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