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refactor(furvm): improve primitive types

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Improve primitive types and binary operations.

Closes: #55
This commit is contained in:
Aleksander Krajewski
2026-07-11 02:28:23 +02:00
parent 3c0588e8db
commit 8d3859ce70
5 changed files with 316 additions and 102 deletions
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furvm/include/furvm/module.hpp
+14 -19
View File
@@ -18,8 +18,6 @@
namespace furvm {
struct mod_type {
using primitive = std::uint64_t;
struct array {
mod_type_id typeId;
std::size_t size;
@@ -31,7 +29,14 @@ struct mod_type {
};
enum type {
Primitive = 0,
S8 = 0,
S16,
S32,
S64,
U8,
U16,
U32,
U64,
Array,
Import,
@@ -39,15 +44,11 @@ struct mod_type {
} type;
union value {
std::nullptr_t null = nullptr;
primitive primitive;
array array;
imprt imprt;
value() = default;
value(std::uint64_t primitive)
: primitive(primitive) {}
value(mod_type_id id, std::size_t size)
: array({}) {
array.typeId = id;
@@ -69,8 +70,8 @@ struct mod_type {
value& operator=(const value& other) = delete;
} value;
mod_type(primitive primitive)
: type(Primitive), value(primitive) {}
mod_type(enum type type)
: type(type) {}
mod_type(mod_type_id id, std::size_t size)
: type(Array), value(id, size) {}
@@ -83,8 +84,6 @@ struct mod_type {
switch (type) {
case Array: value.array.~array(); break;
case Import: value.imprt.~imprt(); break;
case Primitive:
case Count:
default: break;
}
}
@@ -92,10 +91,9 @@ struct mod_type {
mod_type(mod_type&& other) noexcept
: type(other.type) {
switch (type) {
case Primitive: new (&value.primitive) primitive(other.value.primitive); break;
case Array: new (&value.array) array(other.value.array); break;
case Import: new (&value.imprt) imprt(std::move(other.value.imprt)); break;
case Count: break;
default: break;
}
other.type = Count;
}
@@ -104,10 +102,9 @@ struct mod_type {
if (this == &other) return *this;
type = other.type;
switch (type) {
case Primitive: new (&value.primitive) primitive(other.value.primitive); break;
case Array: new (&value.array) array(other.value.array); break;
case Import: new (&value.imprt) imprt(std::move(other.value.imprt)); break;
case Count: break;
default: break;
}
other.type = Count;
return *this;
@@ -116,10 +113,9 @@ struct mod_type {
mod_type(const mod_type& other)
: type(other.type) {
switch (type) {
case Primitive: new (&value.primitive) primitive(other.value.primitive); break;
case Array: new (&value.array) array(other.value.array); break;
case Import: new (&value.imprt) imprt(other.value.imprt); break;
case Count: break;
default: break;
}
}
@@ -127,10 +123,9 @@ struct mod_type {
if (this == &other) return *this;
type = other.type;
switch (type) {
case Primitive: new (&value.primitive) primitive(other.value.primitive); break;
case Array: new (&value.array) array(other.value.array); break;
case Import: new (&value.imprt) imprt(other.value.imprt); break;
case Count: break;
default: break;
}
return *this;
}
furvm/include/furvm/thing.hpp
+232 -45
View File
@@ -14,13 +14,21 @@
#include <limits>
#include <new>
#include <stdexcept>
#include <type_traits>
#include <unordered_map>
#include <utility>
namespace furvm {
struct thing_type {
using primitive = std::uint64_t;
using s8 = std::int8_t;
using s16 = std::int16_t;
using s32 = std::int32_t;
using s64 = std::int64_t;
using u8 = std::uint8_t;
using u16 = std::uint16_t;
using u32 = std::uint32_t;
using u64 = std::uint64_t;
struct array {
thing_type* type;
@@ -28,17 +36,23 @@ struct thing_type {
};
enum type { // NOLINT
Primitive = 0,
S8 = 0,
S16,
S32,
S64,
U8,
U16,
U32,
U64,
Array,
Count,
} type;
union value {
primitive primitive;
array array;
std::nullptr_t null = nullptr;
array array;
value(std::uint64_t primitive)
: primitive(primitive) {}
value() = default;
value(thing_type* type, std::size_t size)
: array({}) {
@@ -54,7 +68,14 @@ struct thing_type {
bool operator==(const thing_type& other) const {
if (type != other.type) return false;
switch (type) {
case Primitive: return value.primitive == other.value.primitive;
case S8:
case S16:
case S32:
case S64:
case U8:
case U16:
case U32:
case U64: return true;
case Array: return *value.array.type == *other.value.array.type && value.array.size == other.value.array.size;
case Count: break;
}
@@ -62,6 +83,38 @@ struct thing_type {
}
bool operator!=(const thing_type& other) const { return !this->operator==(other); }
static bool is_primitive(enum type type) {
switch (type) {
case S8:
case S16:
case S32:
case S64:
case U8:
case U16:
case U32:
case U64: return true;
case Array:
case Count: break;
}
return false;
}
static std::size_t primitive_size(enum type type) {
switch (type) {
case thing_type::S8: return sizeof(s8);
case thing_type::S16: return sizeof(s16);
case thing_type::S32: return sizeof(s32);
case thing_type::S64: return sizeof(s64);
case thing_type::U8: return sizeof(u8);
case thing_type::U16: return sizeof(u16);
case thing_type::U32: return sizeof(u32);
case thing_type::U64: return sizeof(u64);
case Array:
case Count: break;
}
return 0;
}
};
namespace detail {
@@ -70,10 +123,14 @@ struct thing_type_hash {
std::size_t operator()(const thing_type& type) const {
std::size_t seed = std::hash<decltype(type.type)>{}(type.type);
switch (type.type) {
case thing_type::Primitive:
seed =
furlang::utility::hash_combine(seed, std::hash<decltype(type.value.primitive)>{}(type.value.primitive));
return seed;
case thing_type::S8:
case thing_type::S16:
case thing_type::S32:
case thing_type::S64:
case thing_type::U8:
case thing_type::U16:
case thing_type::U32:
case thing_type::U64: return seed;
case thing_type::Array:
seed = furlang::utility::hash_combine(seed, thing_type_hash{}(*type.value.array.type));
seed = furlang::utility::hash_combine(seed,
@@ -116,11 +173,6 @@ class thing final {
public:
using allocator_type = Allocator<std::byte>; /**< Allocator type. */
public:
using s8 = std::int8_t;
using s16 = std::int16_t;
using s32 = std::int32_t;
using s64 = std::int64_t;
union array {
std::byte flat[];
struct {
@@ -186,7 +238,14 @@ public:
thing res(m_type, m_allocator);
switch (m_type.type) {
case thing_type::Primitive: std::memcpy(res.m_data, m_data, m_size); return std::move(res);
case thing_type::S8:
case thing_type::S16:
case thing_type::S32:
case thing_type::S64:
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::Array: copy_list(m_type, res.get<array>(), get<array>()); return std::move(res);
case thing_type::Count: break;
}
@@ -221,8 +280,7 @@ public:
*/
template <typename T>
T& get() {
std::size_t size = m_size > 0 ? m_size : compute_size_na(m_type);
if (size != sizeof(T)) throw bad_thing_access();
if (compute_size_na(m_type) != sizeof(T)) throw bad_thing_access();
return *std::launder(reinterpret_cast<T*>(m_data));
}
@@ -233,8 +291,7 @@ public:
*/
template <typename T>
const T& get() const {
std::size_t size = m_size > 0 ? m_size : compute_size_na(m_type);
if (size != sizeof(T)) throw bad_thing_access();
if (compute_size_na(m_type) != sizeof(T)) throw bad_thing_access();
return *std::launder(reinterpret_cast<const T*>(m_data));
}
public:
@@ -331,13 +388,16 @@ public:
*
* @return The integer value.
*/
s64 integer() const {
if (m_type.type != thing_type::Primitive) throw bad_thing_access();
switch (m_type.value.primitive) {
case sizeof(s8): return get<s8>();
case sizeof(s16): return get<s16>();
case sizeof(s32): return get<s32>();
case sizeof(s64): return get<s64>();
thing_type::s64 integer() const {
switch (m_type.type) {
case thing_type::S8: return get<thing_type::s8>();
case thing_type::S16: return get<thing_type::s16>();
case thing_type::S32: return get<thing_type::s32>();
case thing_type::S64: return get<thing_type::s64>();
case thing_type::U8: return get<thing_type::u8>();
case thing_type::U16: return get<thing_type::u16>();
case thing_type::U32: return get<thing_type::u32>();
case thing_type::U64: return get<thing_type::u64>();
default: throw std::runtime_error("unreachable");
}
}
@@ -346,7 +406,7 @@ public:
constexpr bool is_reference() const { return m_size == 0; }
void resize(s64 newSize) {
void resize(thing_type::u64 newSize) {
if (m_type.type != thing_type::Array) throw bad_thing_access();
if (m_type.value.array.size > 0) throw std::runtime_error("cannot resize a static array");
@@ -356,13 +416,13 @@ public:
std::byte* newData = new std::byte[innerSize * newSize];
std::memcpy(newData,
array.dynamic.data,
innerSize * std::min(static_cast<std::int64_t>(array.dynamic.size), newSize));
innerSize * std::min(static_cast<thing_type::u64>(array.dynamic.size), newSize));
array.dynamic.size = newSize;
delete[] array.dynamic.data;
array.dynamic.data = newData;
}
thing at(s64 index) const {
thing at(thing_type::u64 index) const {
if (m_type.type != thing_type::Array) throw bad_thing_access();
std::size_t elementSize = compute_size_na(*m_type.value.array.type);
@@ -381,6 +441,11 @@ public:
if (m_type.type != thing_type::Array) throw bad_thing_access();
return m_type.value.array.size == 0 ? get<array>().dynamic.size : m_type.value.array.size;
}
template <typename T, typename = std::enable_if_t<std::is_integral_v<T>>>
T cast_to() const {
return visit_primitive([](auto value) { return static_cast<T>(value); });
}
private:
static void copy_list(const thing_type& arrayType, array& dst, const array& src) {
if (arrayType.type != thing_type::Array || arrayType.value.array.type == nullptr)
@@ -408,7 +473,14 @@ private:
}
switch (innerType.type) {
case thing_type::Primitive: std::memcpy(dst.flat, src.flat, size); return;
case thing_type::S8:
case thing_type::S16:
case thing_type::S32:
case thing_type::S64:
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::Array:
for (std::size_t i = 0; i < size; ++i) {
copy_list(*innerType.value.array.type,
@@ -423,7 +495,14 @@ private:
private:
static std::size_t compute_size_na(const thing_type& type) {
switch (type.type) {
case thing_type::Primitive: return type.value.primitive;
case thing_type::S8: return sizeof(thing_type::s8);
case thing_type::S16: return sizeof(thing_type::s16);
case thing_type::S32: return sizeof(thing_type::s32);
case thing_type::S64: return sizeof(thing_type::s64);
case thing_type::U8: return sizeof(thing_type::u8);
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::Array:
return type.value.array.size == 0 ? sizeof(array)
: compute_size_na(*type.value.array.type) * type.value.array.size;
@@ -439,23 +518,131 @@ private:
thing(const thing_type& type, std::byte* data, const allocator_type& allocator = {})
: m_type(type), m_size(0), m_data(data), m_allocator(allocator) {}
private:
template <typename Func>
decltype(auto) visit_primitive(Func&& func) const {
switch (m_type.type) {
case thing_type::S8: return std::forward<Func>(func)(get<thing_type::s8>());
case thing_type::S16: return std::forward<Func>(func)(get<thing_type::s16>());
case thing_type::S32: return std::forward<Func>(func)(get<thing_type::s32>());
case thing_type::S64: return std::forward<Func>(func)(get<thing_type::s64>());
case thing_type::U8: return std::forward<Func>(func)(get<thing_type::u8>());
case thing_type::U16: return std::forward<Func>(func)(get<thing_type::u16>());
case thing_type::U32: return std::forward<Func>(func)(get<thing_type::u32>());
case thing_type::U64: return std::forward<Func>(func)(get<thing_type::u64>());
default: throw bad_thing_access();
}
}
template <typename Op>
thing binary_op(const thing& rhs, const Op& op) const {
if (m_type.type == thing_type::Primitive && rhs.m_type.type == thing_type::Primitive) {
thing_type resultType = m_type.value.primitive >= rhs.m_type.value.primitive ? m_type : rhs.m_type;
std::size_t size = std::max(m_type.value.primitive, rhs.m_type.value.primitive);
if (thing_type::is_primitive(m_type.type) && thing_type::is_primitive(rhs.m_type.type)) {
static constexpr enum thing_type::type promotions[8 * 8] = {
// S8
thing_type::S8,
thing_type::S16,
thing_type::S32,
thing_type::S64,
thing_type::S16,
thing_type::S16,
thing_type::S32,
thing_type::U64,
// S16
thing_type::S16,
thing_type::S16,
thing_type::S32,
thing_type::S64,
thing_type::S16,
thing_type::S16,
thing_type::S32,
thing_type::U64,
// S32
thing_type::S32,
thing_type::S32,
thing_type::S32,
thing_type::S64,
thing_type::S32,
thing_type::S32,
thing_type::U32,
thing_type::U64,
// S64
thing_type::S64,
thing_type::S64,
thing_type::S64,
thing_type::S64,
thing_type::S64,
thing_type::S64,
thing_type::S64,
thing_type::U64,
// U8
thing_type::S16,
thing_type::S16,
thing_type::S32,
thing_type::S64,
thing_type::U8,
thing_type::U16,
thing_type::U32,
thing_type::U64,
// U16
thing_type::S16,
thing_type::S16,
thing_type::S32,
thing_type::S64,
thing_type::U16,
thing_type::U16,
thing_type::U32,
thing_type::U64,
// U32
thing_type::S32,
thing_type::S32,
thing_type::U32,
thing_type::S64,
thing_type::U32,
thing_type::U32,
thing_type::U32,
thing_type::U64,
// U64
thing_type::U64,
thing_type::U64,
thing_type::U64,
thing_type::U64,
thing_type::U64,
thing_type::U64,
thing_type::U64,
thing_type::U64,
};
s64 result = op(integer(), rhs.integer());
enum thing_type::type resultType = promotions[m_type.type + (rhs.m_type.type * 8)];
thing res(resultType, m_allocator);
switch (size) {
case sizeof(s8): res.get<s8>() = result; break;
case sizeof(s16): res.get<s16>() = result; break;
case sizeof(s32): res.get<s32>() = result; break;
case sizeof(s64): res.get<s64>() = result; break;
default: throw std::runtime_error("unreachable");
thing res = { thing_type{ resultType }, m_allocator };
switch (resultType) {
case thing_type::S8:
res.get<thing_type::s8>() = Op{}(cast_to<thing_type::s8>(), rhs.cast_to<thing_type::s8>());
return res;
case thing_type::S16:
res.get<thing_type::s16>() = Op{}(cast_to<thing_type::s16>(), rhs.cast_to<thing_type::s16>());
return res;
case thing_type::S32:
res.get<thing_type::s32>() = Op{}(cast_to<thing_type::s32>(), rhs.cast_to<thing_type::s32>());
return res;
case thing_type::S64:
res.get<thing_type::s64>() = Op{}(cast_to<thing_type::s64>(), rhs.cast_to<thing_type::s64>());
return res;
case thing_type::U8:
res.get<thing_type::u8>() = Op{}(cast_to<thing_type::u8>(), rhs.cast_to<thing_type::u8>());
return res;
case thing_type::U16:
res.get<thing_type::u16>() = Op{}(cast_to<thing_type::u16>(), rhs.cast_to<thing_type::u16>());
return res;
case thing_type::U32:
res.get<thing_type::u32>() = Op{}(cast_to<thing_type::u32>(), rhs.cast_to<thing_type::u32>());
return res;
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::Array:
case thing_type::Count: break;
}
return std::move(res);
throw std::runtime_error("unreachable");
}
throw std::runtime_error("unexpected operation");