debug.getprotos

C closures are not supported

This function will throw an error if called on a C closure, such as print, since C closures do not contain function prototypes.

Inactive protos

Protos retrieved without the activated should not be callable; this leads to vulnerabilities. The usage of inactive protos is to retrieve information off of them.

debug.getprotos returns all function prototypes defined within the specified Luau function.

These are internal function definitions (e.g. nested functions) that exist as part of the compiled bytecode, even if they aren't assigned or called.

function debug.getprotos(func: (...any) -> (...any) | number): { (...any) -> (...any) }

Parameters

Parameter	Description
func	The Luau function (or stack level) to extract protos from.

---

Example

local function DummyFunction0()
    local function DummyFunction1() end
    local function DummyFunction2() end
end

for index, proto in pairs(debug.getprotos(DummyFunction0)) do
    print(index, debug.info(proto, "n"))
end

-- Output:
-- 1 DummyFunction1
-- 2 DummyFunction2