Function DoSub

library/cpp/coroutine/engine/coroutine_ut.cpp:475–488

    }

    static void DoSub(TCont* cont, void* argPtr) noexcept {
        TState& state = *(TState*)(argPtr);
        state.Sub = cont;

        // 04.{Ready:[Aux]} > {Ready:[Aux,Sub2]}
        auto* sub2 = cont->Executor()->Create(DoSub2, argPtr, "Sub2");

        // 05.{Ready:[Aux,Sub2]} > SwitchTo(Aux)
        // 09.{Ready:[],Deleted:[Sub2]} > Cancel(Sub2) > {Ready:[Sub2],Deleted:[Sub2]}
        // 10.{Ready:[Sub2],Deleted:[Sub2]} > SwitchTo(Sub2) > FAIL: can not return from exit
        cont->Join(sub2);

        state.Sub = nullptr;
    }

    static void DoMain(TCont* cont) noexcept {
        TState state;