luau/Common/include/Luau/ExperimentalFlags.h

// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
#pragma once

#include <string.h>

namespace Luau
{

inline bool isFlagExperimental(const char* flag)
{
    // Flags in this list are disabled by default in various command-line tools. They may have behavior that is not fully final,
    // or critical bugs that are found after the code has been submitted.
    static const char* const kList[] = {
        "LuauInstantiateInSubtyping",  // requires some fixes to lua-apps code
        "LuauTypecheckTypeguards",     // requires some fixes to lua-apps code (CLI-67030)
        "LuauTinyControlFlowAnalysis", // waiting for updates to packages depended by internal builtin plugins
        // makes sure we always have at least one entry
        nullptr,
    };

    for (const char* item : kList)
        if (item && strcmp(item, flag) == 0)
            return true;

    return false;
}

} // namespace Luau