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33 lines
1.4 KiB
Lua
33 lines
1.4 KiB
Lua
-- Registered metatables, used by the C++ packer
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local serializable_metatables = {}
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local known_metatables = {}
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local function dummy_serializer(x)
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return x
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end
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function core.register_portable_metatable(name, mt, serializer, deserializer)
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serializer = serializer or dummy_serializer
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deserializer = deserializer or function(x) return setmetatable(x, mt) end
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assert(type(name) == "string", ("attempt to use %s value as metatable name"):format(type(name)))
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assert(type(mt) == "table", ("attempt to register a %s value as metatable"):format(type(mt)))
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assert(type(serializer), ("attempt to use a %s value as serializer"):format(type(serializer)))
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assert(type(deserializer), ("attempt to use a %s value as serialier"):format(type(deserializer)))
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assert(known_metatables[name] == nil or known_metatables[name] == mt,
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("attempt to override metatable %s"):format(name))
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known_metatables[name] = mt
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known_metatables[mt] = name
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serializable_metatables[mt] = serializer
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serializable_metatables[name] = deserializer
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end
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core.known_metatables = known_metatables
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core.serializable_metatables = serializable_metatables
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function core.register_async_metatable(...)
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core.log("deprecated", "core.register_async_metatable is deprecated. " ..
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"Use core.register_portable_metatable instead.")
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return core.register_portable_metatable(...)
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end
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core.register_portable_metatable("__builtin:vector", vector.metatable)
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