Require permission meta to be table or nil

mods/capitalism/company/api.lua

@@ -86,6 +86,7 @@ function company.check_perm(pname, cname, permission, meta)
 	assert(type(cname) == "string")
 	assert(type(permission) == "string")
 	assert(company.permissions[permission])
+	assert(meta == nil or type(meta) == "table")
 
 	local comp = company.get_active(pname)
 	if not comp then

mods/capitalism/company/company.lua

@@ -52,8 +52,12 @@ function Company:can_become_active(username)
 	return self:check_perm(username, "SWITCH_TO")
 end
 
-function Company:check_perm(username, permission)
+function Company:check_perm(username, permission, meta)
+	assert(type(username) == "string")
+	assert(type(permission) == "string")
 	assert(company.permissions[permission])
+	assert(meta == nil or type(meta) == "table")
+
 	-- TODO: permissions
 	return self:get_ownership(username) > 0
 end

mods/capitalism/land/areas.lua

@@ -19,11 +19,14 @@ function areas:canInteract(pos, name)
 	-- end
 
 	for id, area in pairs(areas) do
+		area.id = id
+
 		local is_company = area.owner:sub(1, 2) == "c:"
 		if area.open then
 			return true
 		elseif is_company then
-			if company.check_perm(name, area.owner, "INTERACT_AREA", id) then
+			if company.check_perm(name, area.owner, "INTERACT_AREA",
+					{ area = area }) then
 				return true
 			end
 		elseif area.owner == name then
@@ -41,7 +44,7 @@ function areas:isAreaOwner(id, name)
 	while cur do
 		local is_company = cur.owner:sub(1, 2) == "c:"
 		if is_company and
-				company.check_perm(name, cur.owner, "OWNS_AREA", id) then
+				company.check_perm(name, cur.owner, "OWNS_AREA", { area = cur }) then
 			return true
 		elseif cur.owner == name then
 			return true