KPGPMC/furlang
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feat: introduce pointerof operation

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Introduce pointerof operation and do some side-quests along the way.

Refs: #34
Closes: #17
This commit is contained in:
Aleksander Krajewski
2026-07-05 14:54:16 +02:00
parent 9690ac3617
commit 642d57622a
13 changed files with 290 additions and 141 deletions
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furvm/src/executor.cpp
+13
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@@ -162,6 +162,19 @@ void executor::step() {
auto lhs = pop_thing();
push_thing(lhs->greater_equals(*rhs));
} break;
case instruction_t::Pointerof: {
auto thing = pop_thing()->resolve();
auto ptr = push_thing({ *m_context->at("core")->type_at(4), m_context, m_context->thing_alloc() });
switch (furvm::thing<>::resolve_type(thing.type(), m_context)->t) {
case type_t::Primitive: ptr->get<std::uintptr_t>() = reinterpret_cast<std::uintptr_t>(thing.raw()); break;
case type_t::List:
ptr->get<std::uintptr_t>() = reinterpret_cast<std::uintptr_t>(thing.get<list_t>().data);
break;
case type_t::Reference:
case type_t::Import:
default: throw std::runtime_error("unreachable");
}
} break;
case instruction_t::Load: {
variable_t variable = static_cast<std::uint16_t>(frame.mod->byte(frame.position)) |
(static_cast<std::uint16_t>(frame.mod->byte(frame.position + 1)) << 8);