filtergc

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2 years ago

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Description

This is filtergc made in luau. Its not the best implementation of it but still useful for executors that dont have it. Functions required: - getgc (ofc) - debug.getconstants - debug.getupvalues - Updated: [+] fixed upvalues handling [+] made isexecutor to true as default [+] made it return all tables / functions if no arguments are passed into to avoid looking trough the gc for nothing [+] fixed (mostly) table lookup speed [+] improved general speed by around 20% [+] added Hash option to function and Metatable option to table [+] now passes sunc

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type FunctionFilterOptions = {
    Name: string?, 
    Hash: string?,
    IgnoreExecutor: boolean?,
    Constants: { any }?,
    Upvalues: { any }?,
}

type TableFilterOptions = {
    Metatable: { any }?,
    Keys: { any }?,
    Values: { any }?,
    KeyValuePairs: { [any]: any }?,
}

type Function = ((...any) -> (...any))
type Table = ({ [any]: any })
type ReturnType = Function | Table

local info, find, insert = debug.getinfo, table.find, table.insert
local constants, upvalues = debug.getconstants, debug.getupvalues


local function filter_upvalues(func: Function, expected_upvalues: Table, ignore_executor: boolean): boolean
    
    local func_upvalues = upvalues(func)
    if #func_upvalues == 0 then return false end 

    local found = false 
    for _, value in pairs(expected_upvalues) do 
        if not find(func_upvalues, value) then continue end 

        found = true 
        break  
    end 
    return found 
end 

local function filter_constants(func: Function, expected_constants: Table, ignore_executor: boolean): boolean
    if iscclosure(func) then return false end