debug.getprotos

Gets all protos (nested functions) from a function.

Syntax

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

Parameters

Parameter	Type	Description
`func`	`function`, stack level, or `ProtoProxy`	The prototype to inspect

Returns

Type	Description
`table`	An array of `ProtoProxy` values for all nested prototypes

Description

debug.getprotos returns ProtoProxy values for nested functions. These values can be used with compatible debug functions, but cannot be called directly.

Example

local function container()
    local function a() return 1 end
    local function b() return 2 end
    local function c() return 3 end
    return a() + b() + c()
end

local protos = debug.getprotos(container)
print(#protos) -- 3

for i, proto in ipairs(protos) do
    print(i, typeof(proto), #debug.getconstants(proto))
end

Use Cases

Script analysis: Find all functions defined within a script
Hooking: Locate specific nested functions to hook
Debugging: Inspect the structure of complex functions

debug.getproto - Get a single proto by index