KPGPMC/furlang
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feat(furvm): introduce pointer type

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Closes: #35
This commit is contained in:
Aleksander Krajewski
2026-07-11 22:44:18 +02:00
parent 8d3859ce70
commit cd715ae779
5 changed files with 50 additions and 19 deletions
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furvm/src/executor.cpp
+7 -12
View File
@@ -29,6 +29,7 @@ thing_type executor::thing_type_impl(mod_h mod, mod_type type) const {
case thing_type::U16:
case thing_type::U32:
case thing_type::U64: return { static_cast<enum thing_type::type>(type.type) };
case thing_type::Ptr: return { thing_type::Ptr, thing_type(mod, *mod->type_at(type.value.ptr.typeId)) };
case thing_type::Array: {
return { static_cast<enum thing_type::type>(type.type),
{ thing_type(mod, *mod->type_at(type.value.array.typeId)), type.value.array.size } };
@@ -222,18 +223,11 @@ void executor::step() {
push_thing(lhs->greater_equals(*rhs));
} break;
case instruction_t::Pointerof: {
// auto thing = pop_thing();
// auto ptr = push_thing(
//{ (struct thing_type){ thing_type::Primitive, { sizeof(std::uintptr_t) } }, m_context->thing_alloc() });
// switch (thing->type().type) {
// case thing_type::Primitive: ptr->get<std::uintptr_t>() = reinterpret_cast<std::uintptr_t>(thing->raw());
// break; case thing_type::Array: ptr->get<std::uintptr_t>() = reinterpret_cast<std::uintptr_t>(
// thing->type().value.array.size == 0 ? thing->get<furvm::thing<>::array>().dynamic.data
//: thing->get<furvm::thing<>::array>().flat);
// break;
// case thing_type::Count: throw std::runtime_error("unreachable");
// }
throw std::runtime_error("unimplemented"); // TODO: Implement
auto thing = pop_thing();
auto ptr =
push_thing({ (struct thing_type){ thing_type::Ptr, m_context->thing_type_store().at(thing->type().id) },
m_context->thing_alloc() });
ptr->get<void*>() = thing->raw();
} break;
case instruction_t::Sizeof: {
auto thing = pop_thing();
@@ -249,6 +243,7 @@ void executor::step() {
case thing_type::U64:
size->get<thing_type::u64>() = static_cast<thing_type::u64>(thing_type::primitive_size(thing->type().type));
break;
case thing_type::Ptr: size->get<thing_type::u64>() = static_cast<thing_type::u64>(sizeof(void*)); break;
case thing_type::Array:
size->get<thing_type::u64>() = static_cast<thing_type::u64>(
(thing->type().value.array.size == 0) ? thing->get<furvm::thing<>::array>().dynamic.size
furvm/src/main.cpp
+1 -1
View File
@@ -58,7 +58,7 @@ int main(int argc, char** argv) {
0,
0,
0,
static_cast<furvm::byte>(furvm::instruction_t::Reference),
static_cast<furvm::byte>(furvm::instruction_t::Pointerof),
static_cast<furvm::byte>(furvm::instruction_t::Call),
1,
0,
furvm/src/module.cpp
+6
View File
@@ -34,6 +34,7 @@ std::ostream& mod::serialize(std::ostream& os) const {
case mod_type::U16:
case mod_type::U32:
case mod_type::U64: break;
case mod_type::Ptr: detail::serialize(os, type.value.ptr.typeId); break;
case mod_type::Array: {
detail::serialize(os, type.value.array.typeId);
detail::serialize(os, type.value.array.size);
@@ -115,6 +116,11 @@ mod mod::load(std::istream& is) {
case mod_type::U16:
case mod_type::U32:
case mod_type::U64: break;
case mod_type::Ptr: {
mod_type_id typeId = 0;
detail::load(is, typeId);
mod.emplace_type(id, typeId).dispatch();
} break;
case mod_type::Array: {
mod_type_id typeId = 0;
detail::load(is, typeId);