Method assign

src/module.cpp:157–215

void module::set_bypass(bool b) { impl->bypass = b; }

void module::assign(const module& m)
{
    // copy the impl
    if(not impl)
        impl = std::make_unique<module_impl>();
    *impl = *m.impl;

    // clear instructions
    if(not impl->instructions.empty())
    {
        impl->clear();
    }

    std::unordered_map<instruction_ref, instruction_ref> ins_map;
    for(auto ins : iterator_for(m))
    {
        instruction_ref copy_ins{};
        if(ins->name() == "@literal")
        {
            auto l   = ins->get_literal();
            copy_ins = impl->insert(impl->instructions.end(), instruction{l});
        }
        else if(ins->name() == "@param")
        {
            auto&& name = any_cast<builtin::param>(ins->get_operator()).parameter;
            auto order  = any_cast<builtin::param>(ins->get_operator()).order;
            auto s      = ins->get_shape();
            copy_ins    = impl->insert(impl->instructions.end(),
                                    {builtin::param{name, order}, std::move(s), {}});
            impl->nparams++;
        }
        else if(ins->name() == "@outline")
        {
            auto s   = ins->get_shape();
            copy_ins = impl->insert(impl->instructions.end(), {builtin::outline{s}, s, {}});
        }
        else
        {
            // if there are sub_module inputs, need to make a copy of the submodule
            auto module_args = ins->module_inputs();
            // retrieve its mapped input
            auto inputs = ins->inputs();
            std::vector<instruction_ref> copy_inputs(inputs.size());
            std::transform(inputs.begin(), inputs.end(), copy_inputs.begin(), [&](auto i) {
                return contains(ins_map, i) ? ins_map[i] : i;
            });
            if(ins->name() == "@return")
            {
                copy_ins = add_return(copy_inputs);
            }
            else
            {
                copy_ins = add_instruction(ins->get_operator(), copy_inputs, module_args);
            }
        }

        ins_map[ins] = copy_ins;
    }