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Try to preserve metatable when exchanging data with the async env (#14369)

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Co-authored-by: sfan5 <sfan5@live.de>
Co-authored-by: Lars Mueller <appgurulars@gmx.de>
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y5nw 2024-03-06 18:04:49 +01:00 • committed by GitHub
parent badd42789a
commit fc80f65a6d
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8 changed files with 126 additions and 6 deletions
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43
games/devtest/mods/unittests/async_env.lua
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@ -53,7 +53,7 @@ local test_object = {
end,
sunlight_propagates = true,
is_ground_content = false,
light_source = 0,
pos = vector.new(-1, -2, -3),
}
local function test_object_passing()
@ -166,3 +166,44 @@ local function test_userdata_passing2(cb, _, pos)
end, vm, pos)
end
unittests.register("test_userdata_passing2", test_userdata_passing2, {map=true, async=true})
local function test_async_metatable_override()
assert(pcall(core.register_async_metatable, "__builtin:vector", vector.metatable),
"Metatable name aliasing throws an error when it should be allowed")
assert(not pcall(core.register_async_metatable, "__builtin:vector", {}),
"Illegal metatable overriding allowed")
end
unittests.register("test_async_metatable_override", test_async_metatable_override)
local function test_async_metatable_registration(cb)
local custom_metatable = {}
core.register_async_metatable("unittests:custom_metatable", custom_metatable)
core.handle_async(function(x)
-- unittests.custom_metatable is registered in inside_async_env.lua
return getmetatable(x) == unittests.custom_metatable, x
end, function(metatable_preserved_async, table_after_roundtrip)
if not metatable_preserved_async then
return cb("Custom metatable not preserved (main -> async)")
end
if getmetatable(table_after_roundtrip) ~= custom_metatable then
return cb("Custom metable not preserved (after roundtrip)")
end
cb()
end, setmetatable({}, custom_metatable))
end
unittests.register("test_async_metatable_registration", test_async_metatable_registration, {async=true})
local function test_vector_preserve(cb)
local vec = vector.new(1, 2, 3)
core.handle_async(function(x)
return x[1]
end, function(ret)
if ret ~= vec then -- fails if metatable was not preserved
return cb("Vector value mismatch")
end
cb()
end, {vec})
end
unittests.register("test_async_vector", test_vector_preserve, {async=true})