I have a metatable with the following __newindex function:
__newindex = function(t, key, value)
set_value(t.sprite_number, key, value)
end
This lets me allow users to set "properties" on my lua objects (there's a corresponding __index function, but it's not really relevant).
set_value is a C function. If you try to set the wrong type on a "property," say setting a string value on an integer property, the C code does
luaL_error (l, "property must be a number");
This works fine, except the error reported from lua is
[string "-- init.lua..."]:10: property must be a number
Which is referring to the set_value function call in my __newindex function. This isn't very helpful. I'd like the error to instead point to the place where the wrong value was set, i.e. in the spot where you do
object.property = "expects integer"
Can I accomplish this somehow?