Debug

getupvalue

Returns one upvalue from a Lua function or stack level by one-based index. Invalid stack levels raise “Level out of range”, non-Lua functions raise “Lua Function expected”, indexes below 1 raise “Upvalue index starts at 1”, and indexes past the available upvalues raise “Upvalue index out of range”. debug.getupvalue is an alias.

getupvalue(target: function | number, index: number): any

Алиасы

debug.getupvalue

Аргументы

function | number

обязательно

Lua function or stack level whose upvalue is read.

number

обязательно

One-based upvalue index.

Возвраты

any

Value stored in the requested upvalue slot.

Пример

Read one upvalue from a Lua closure or stack level.

local captured = "ready"

local function target()
    return captured
end

print(getupvalue(target, 1))
print(debug.getupvalue(target, 1))

​Алиасы

​Аргументы

​Возвраты

​Пример

Алиасы

Аргументы

Возвраты

Пример