getprotos

Returns all nested Lua functions from a Lua function or stack level as a one-based array table. Invalid stack levels raise “Level out of range”, and non-Lua functions raise “Lua function expected”. debug.getprotos is an alias.

Syntax

getprotos(target: function | number): table

Aliase

debug.getprotos

Argumente

Name	Type	Required	Beschreibung
`target`	`function \| number`	Yes	Lua function or stack level whose nested functions are returned.

Rückgaben

Name	Type	Beschreibung
`protos`	`table`	One-based array table containing nested functions. Empty when none are present.

Beispiel

Clone every nested Proto from a Lua closure into an array of new L closures.

local function outer()
    local function first()
        return "one"
    end

    local function second()
        return "two"
    end

    return first, second
end

local protos = getprotos(outer)

for index, proto in ipairs(protos) do
    print(index, type(proto))
end

print(#debug.getprotos(outer))

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