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-rw-r--r--builtin/game/register.lua2
1 files changed, 2 insertions, 0 deletions
diff --git a/builtin/game/register.lua b/builtin/game/register.lua
index d111e5c27..51492e928 100644
--- a/builtin/game/register.lua
+++ b/builtin/game/register.lua
@@ -79,6 +79,7 @@ end
function core.register_abm(spec)
-- Add to core.registered_abms
+ assert(type(spec.action) == "function", "Required field 'action' of type function")
core.registered_abms[#core.registered_abms + 1] = spec
spec.mod_origin = core.get_current_modname() or "??"
end
@@ -86,6 +87,7 @@ end
function core.register_lbm(spec)
-- Add to core.registered_lbms
check_modname_prefix(spec.name)
+ assert(type(spec.action) == "function", "Required field 'action' of type function")
core.registered_lbms[#core.registered_lbms + 1] = spec
spec.mod_origin = core.get_current_modname() or "??"
end