debug.setupvalue - Byte Documentation

debug.setupvalue(target: function | number, index: number, value: any): function

Aliases

setupvalue

Arguments

function | number

required

The function to inspect, or a positive stack level identifying a caller.

number

required

A 1-based slot index.

any

required

The replacement captured value.

Returns

function

The resolved target function after its upvalue is changed.

Requires a valid existing slot. The resolved target function remains on the native stack and is returned; this is not the standard Lua upvalue-name return. Related types: Debug types & behavior.

Example

local captured = {value = 1}
local function sample() return captured.value end
debug.setupvalue(sample, 1, {value = 2})
print(sample())

​Aliases

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​Returns

​Example

Aliases

Arguments

Returns

Example