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hooks: Throw an error if obj is nil to avoid clusterfucks.

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This commit is contained in:
FireSiku 2018-12-15 21:43:13 -05:00
parent ce468164aa
commit d252e17229
1 changed files with 2 additions and 4 deletions
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6
vmf/scripts/mods/vmf/modules/core/hooks.lua
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@ -250,11 +250,9 @@ end
-- mod, table (obj), string (method), function (handler), string (func_name)
-- Giving a method string and a hook function (hooking global functions)
-- mod, string (method), function (handler), nil, string (func_name)
-- Giving a nil value followed by a method stirng and hook function (alternate way for global functions)
-- mod, nil, string (method), function (handler), string (func_name)
local function generic_hook(mod, obj, method, handler, func_name)
if vmf.check_wrong_argument_type(mod, func_name, "obj", obj, "string", "table", "nil") or
if vmf.check_wrong_argument_type(mod, func_name, "obj", obj, "string", "table") or
vmf.check_wrong_argument_type(mod, func_name, "method", method, "string", "function") or
vmf.check_wrong_argument_type(mod, func_name, "handler", handler, "function", "nil")
then
@ -262,7 +260,7 @@ local function generic_hook(mod, obj, method, handler, func_name)
end
-- Shift the arguments if needed
if type(method) == "function" then
if not handler then
obj, method, handler = nil, obj, method
if not method then
mod:error("(%s): trying to create hook without giving a method name.", func_name)