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feat(furvm): add clone function to thing

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Closes #9
This commit is contained in:
Aleksander Krajewski
2026-06-10 19:32:07 +02:00
parent efe028a54f
commit 0534359503
6 changed files with 91 additions and 15 deletions
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furvm/src/executor.cpp
+8 -3
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@@ -42,6 +42,11 @@ void executor::push_thing(const thing_p& thing) {
m_stack.push(thing);
}
void executor::push_thing(thing_p&& thing) {
thing->add_reference();
m_stack.push(std::move(thing));
}
thing_p executor::pop_thing() {
if (m_frames.top().stackBase >= m_stack.size()) throw stack_underflow();
thing_p top = std::move(m_stack.top());
@@ -66,7 +71,7 @@ void executor::step() {
case instruction_t::PushB2I: {
auto thing = thing::create(m_context, thing_t::Int32);
thing->int32() = frame.mod->byte(frame.position++);
m_stack.push(std::move(thing));
push_thing(std::move(thing));
} break;
case instruction_t::Drop: {
pop_thing();
@@ -75,7 +80,7 @@ void executor::step() {
push_thing(thing());
} break;
case instruction_t::Clone: {
push_thing(thing::clone(thing()));
push_thing(std::move(thing::clone(thing())));
} break;
case instruction_t::Return: {
pop_frame();
@@ -84,7 +89,7 @@ void executor::step() {
case instruction_t::ReturnValue: {
auto value = pop_thing();
pop_frame();
m_stack.push(std::move(value));
push_thing(std::move(value));
} break;
case instruction_t::PushConstant: throw std::runtime_error("unimplemented");
default: throw std::runtime_error("unknown instruction");