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core.callback_origins = {}
local getinfo = debug.getinfo
debug.getinfo = nil
--- Runs given callbacks.
--
-- Note: this function is also called from C++
-- @tparam table callbacks a table with registered callbacks, like `core.registered_on_*`
-- @tparam number mode a RunCallbacksMode, as defined in src/script/common/c_internal.h
-- @param ... arguments for the callback
-- @return depends on mode
function core.run_callbacks(callbacks, mode, ...)
assert(type(callbacks) == "table")
local cb_len = #callbacks
if cb_len == 0 then
if mode == 2 or mode == 3 then
return true
elseif mode == 4 or mode == 5 then
return false
end
end
local ret
for i = 1, cb_len do
local cb_ret = callbacks[i](...)
if mode == 0 and i == 1 or mode == 1 and i == cb_len then
ret = cb_ret
elseif mode == 2 then
if not cb_ret or i == 1 then
ret = cb_ret
end
elseif mode == 3 then
if cb_ret then
return cb_ret
end
ret = cb_ret
elseif mode == 4 then
if (cb_ret and not ret) or i == 1 then
ret = cb_ret
end
elseif mode == 5 and cb_ret then
return cb_ret
end
end
return ret
end
--
-- Callback registration
--
local function make_registration()
local t = {}
local registerfunc = function(func)
t[#t + 1] = func
core.callback_origins[func] = {
mod = core.get_current_modname() or "??",
name = getinfo(1, "n").name or "??"
}
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