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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/include/furvm/module.hpp
+11
View File
@@ -18,6 +18,10 @@
namespace furvm {
struct mod_type {
struct ptr {
mod_type_id typeId;
};
struct array {
mod_type_id typeId;
std::size_t size;
@@ -37,6 +41,7 @@ struct mod_type {
U16,
U32,
U64,
Ptr,
Array,
Import,
@@ -44,11 +49,17 @@ struct mod_type {
} type;
union value {
std::nullptr_t null = nullptr;
ptr ptr;
array array;
imprt imprt;
value() = default;
value(mod_type_id id)
: ptr({}) {
ptr.typeId = id;
}
value(mod_type_id id, std::size_t size)
: array({}) {
array.typeId = id;
furvm/include/furvm/thing.hpp
+25 -6
View File
@@ -30,6 +30,10 @@ struct thing_type {
using u32 = std::uint32_t;
using u64 = std::uint64_t;
struct ptr {
thing_type* type;
};
struct array {
thing_type* type;
std::size_t size;
@@ -44,16 +48,23 @@ struct thing_type {
U16,
U32,
U64,
Ptr,
Array,
Count,
} type;
union value {
std::nullptr_t null = nullptr;
ptr ptr;
array array;
value() = default;
value(thing_type* type)
: ptr({}) {
ptr.type = type;
}
value(thing_type* type, std::size_t size)
: array({}) {
array.type = type;
@@ -76,6 +87,7 @@ struct thing_type {
case U16:
case U32:
case U64: return true;
case Ptr: return *value.ptr.type == *other.value.ptr.type;
case Array: return *value.array.type == *other.value.array.type && value.array.size == other.value.array.size;
case Count: break;
}
@@ -94,10 +106,11 @@ struct thing_type {
case U16:
case U32:
case U64: return true;
case Array:
case Ptr:
case Array: return false;
case Count: break;
}
return false;
throw std::runtime_error("unreachable");
}
static std::size_t primitive_size(enum type type) {
@@ -110,10 +123,11 @@ struct thing_type {
case thing_type::U16: return sizeof(u16);
case thing_type::U32: return sizeof(u32);
case thing_type::U64: return sizeof(u64);
case Array:
case Ptr:
case Array: return 0;
case Count: break;
}
return 0;
throw std::runtime_error("unreachable");
}
};
@@ -131,6 +145,7 @@ struct thing_type_hash {
case thing_type::U16:
case thing_type::U32:
case thing_type::U64: return seed;
case thing_type::Ptr: return furlang::utility::hash_combine(seed, thing_type_hash{}(*type.value.ptr.type));
case thing_type::Array:
seed = furlang::utility::hash_combine(seed, thing_type_hash{}(*type.value.array.type));
seed = furlang::utility::hash_combine(seed,
@@ -245,7 +260,8 @@ public:
case thing_type::U8:
case thing_type::U16:
case thing_type::U32:
case thing_type::U64: std::memcpy(res.m_data, m_data, m_size); return std::move(res);
case thing_type::U64:
case thing_type::Ptr: std::memcpy(res.m_data, m_data, m_size); return std::move(res);
case thing_type::Array: copy_list(m_type, res.get<array>(), get<array>()); return std::move(res);
case thing_type::Count: break;
}
@@ -480,7 +496,8 @@ private:
case thing_type::U8:
case thing_type::U16:
case thing_type::U32:
case thing_type::U64: std::memcpy(dst.flat, src.flat, size); return;
case thing_type::U64:
case thing_type::Ptr: std::memcpy(dst.flat, src.flat, size); return;
case thing_type::Array:
for (std::size_t i = 0; i < size; ++i) {
copy_list(*innerType.value.array.type,
@@ -503,6 +520,7 @@ private:
case thing_type::U16: return sizeof(thing_type::u16);
case thing_type::U32: return sizeof(thing_type::u32);
case thing_type::U64: return sizeof(thing_type::u64);
case thing_type::Ptr: return sizeof(void*);
case thing_type::Array:
return type.value.array.size == 0 ? sizeof(array)
: compute_size_na(*type.value.array.type) * type.value.array.size;
@@ -639,6 +657,7 @@ private:
case thing_type::U64:
res.get<thing_type::u64>() = Op{}(cast_to<thing_type::u64>(), rhs.cast_to<thing_type::u64>());
return res;
case thing_type::Ptr: // TODO: Pointer arithmetics
case thing_type::Array:
case thing_type::Count: break;
}