Continue work on generics

typon/include/python/basedef.hpp

@@ -5,23 +5,19 @@
 #ifndef TYPON_BASEDEF_HPP
 #define TYPON_BASEDEF_HPP
 
-template<typename Self>
-class TyBuiltin {
-  template <typename... Args>
-  auto sync_wrapper(Args&&... args)
-  {
-    return static_cast<Self*>(this)->sync(std::forward<Args>(args)...);
+template <typename Self> class TyBuiltin {
+  template <typename... Args> auto sync_wrapper(Args &&...args) {
+    return static_cast<Self *>(this)->sync(std::forward<Args>(args)...);
   }
 
 public:
   template <typename... Args>
-  auto operator()(Args&&... args) -> decltype(sync_wrapper(std::forward<Args>(args)...))
-  {
+  auto operator()(Args &&...args)
+      -> decltype(sync_wrapper(std::forward<Args>(args)...)) {
     return sync_wrapper(std::forward<Args>(args)...);
   }
 };
 
-
 /*
 struct method {};
 
@@ -50,9 +46,10 @@ auto dot_bind(Obj, Attr attr) {
   return attr;
 }
 
-#define dot(OBJ, NAME) [](auto && obj) -> auto { return dot_bind(obj, obj.NAME); }(OBJ)
-#define dotp(OBJ, NAME) [](auto && obj) -> auto { return dot_bind(obj, obj->NAME); }(OBJ)
-#define dots(OBJ, NAME) [](auto && obj) -> auto { return std::remove_reference<decltype(obj)>::type::py_type::NAME; }(OBJ)
+#define dot(OBJ, NAME) [](auto && obj) -> auto { return dot_bind(obj, obj.NAME);
+}(OBJ) #define dotp(OBJ, NAME) [](auto && obj) -> auto { return dot_bind(obj,
+obj->NAME); }(OBJ) #define dots(OBJ, NAME) [](auto && obj) -> auto { return
+std::remove_reference<decltype(obj)>::type::py_type::NAME; }(OBJ)
 
 */
 

typon/include/python/builtins/bool.hpp

@@ -7,10 +7,36 @@
 
 #include <ostream>
 
-#include "print.hpp"
+#include "../referencemodel.hpp"
+#include "str.hpp"
 
-template <> void print_to<bool>(const bool &x, std::ostream &s) {
-  s << (x ? "True" : "False");
-}
+namespace typon {
+using namespace referencemodel;
+template <typename _Base0 = object>
+struct TyBool__oo : classtype<_Base0, TyBool__oo<>> {
+  static constexpr std::string_view name = "TyBool";
+
+  struct : method {
+    auto operator()(auto self) const {
+      return TyStr(self->value ? "True" : "False");
+    }
+  } static constexpr oo__str__oo{};
+
+  static constexpr auto oo__repr__oo = oo__str__oo;
+  struct Obj : value<TyBool__oo<>, Obj> {
+    bool value;
+
+    constexpr Obj(bool value = false) : value(value) {}
+    constexpr operator bool() const { return value; }
+  };
+
+  /*static constexpr Obj TRUE = Obj(true);
+    static constexpr Obj FALSE = Obj(false);*/
+
+  auto operator()(bool value) const { return Obj(value); }
+};
+static constexpr TyBool__oo<> TyBool{};
+
+} // namespace typon
 
 #endif // TYPON_BOOL_HPP

typon/include/python/builtins/bytes.hpp

@@ -5,7 +5,7 @@
 #ifndef TYPON_BYTES_H
 #define TYPON_BYTES_H
 
-class TyStr;
+/*class TyStr;
 
 class TyBytes : public std::string {
 public:
@@ -18,10 +18,35 @@ public:
   template <class InputIterator>
   TyBytes(InputIterator first, InputIterator last) : std::string(first, last) {}
 
-  //TyStr decode_inner(const std::string &encoding = "utf-8") const;
+  // TyStr decode_inner(const std::string &encoding = "utf-8") const;
 
   METHOD(TyStr, decode, (Self self, const std::string &encoding = "utf-8"), ;)
+};*/
+
+namespace typon {
+using namespace referencemodel;
+template <typename _Base0 = object>
+struct TyBytes__oo : classtype<_Base0, TyBytes__oo<>> {
+  static constexpr std::string_view name = "TyBytes";
+
+  struct : method {
+    auto operator()(auto self, auto other) const {
+      return Obj(dot(self, value) + dot(other, value));
+    }
+  } static constexpr oo__add__oo{};
+
+  struct Obj : value<TyBytes__oo<>, Obj> {
+    std::string value;
+
+    constexpr Obj() : value() {}
+    constexpr Obj(std::string value) : value(value) {}
+    operator std::string() const { return value; }
+  };
+
+  auto operator()(std::string value) const { return Obj(value); }
 };
+static constexpr TyBytes__oo<> TyBytes{};
 
-#endif // TYPON_BYTES_H
+} // namespace typon
 
+#endif // TYPON_BYTES_H

typon/include/python/builtins/dict.hpp

@@ -5,8 +5,8 @@
 #ifndef TYPON_DICT_HPP
 #define TYPON_DICT_HPP
 
-#include <unordered_map>
 #include <pybind11/stl.h>
+#include <unordered_map>
 
 /*
 template <typename K, typename V>
@@ -87,7 +87,7 @@ TyDict(std::initializer_list<std::pair<K, V>>) -> TyDict<K, V>;*/
 
 namespace typon {
 
-template <typename K, typename V> class TyDict {
+/*template <typename K, typename V> class TyDict {
 public:
   TyDict(std::shared_ptr<std::unordered_map<K, V>> &&m) : _m(std::move(m)) {}
   TyDict(std::unordered_map<K, V> &&m)
@@ -132,14 +132,87 @@ public:
 
 private:
   std::shared_ptr<std::unordered_map<K, V>> _m;
+};*/
+
+} // namespace typon
+
+/*namespace PYBIND11_NAMESPACE {
+namespace detail {
+template <typename K, typename V>
+struct type_caster<typon::TyDict<K, V>>
+    : map_caster<typon::TyDict<K, V>, K, V> {};
+} // namespace detail
+} // namespace PYBIND11_NAMESPACE*/
+
+namespace typon {
+using namespace referencemodel;
+template <typename _Base0 = object>
+struct TyDict__oo : classtype<_Base0, TyDict__oo<>> {
+
+
+  struct : method {
+    template <typename Self> auto operator()(Self self) const {
+      std::stringstream s;
+      s << '{';
+          if (self->_m->size() > 0) {
+            s << repr(self->_m->begin()->first)->value;
+            s << ": ";
+            s << repr(self->_m->begin()->second)->value;
+            for (auto it = ++self->_m->begin(); it != self->_m->end(); it++) {
+              s << ", ";
+                s << repr(it->first)->value;
+              s << ": ";
+                s << repr(it->second)->value;
+            }
+          }
+          s << '}';
+      return typon::TyStr__oo<>::Obj(s.str());
+    }
+  } static constexpr oo__repr__oo{};
+
+  static constexpr auto oo__str__oo = oo__repr__oo;
+
+  template <typename K, typename V> struct Obj : instance<TyDict__oo<>, Obj<K, V>> {
+
+    std::shared_ptr<std::unordered_map<K, V>> _m;
+
+     Obj(std::shared_ptr<std::unordered_map<K, V>> &&m) : _m(std::move(m)) {}
+      Obj(std::unordered_map<K, V> &&m)
+          : _m(std::move(
+                std::make_shared<std::unordered_map<K, V>>(std::move(m)))) {}
+      Obj(std::initializer_list<std::pair<K, V>> &&m)
+          : _m(std::make_shared<std::unordered_map<K, V>>(std::move(m))) {}
+
+      Obj() : _m(std::make_shared<std::unordered_map<K, V>>()) {}
+      template <typename... Args>
+      Obj(Args &&...args)
+          : _m(std::make_shared<std::unordered_map<K, V>>(
+                std::forward<Args>(args)...)) {}
+  };
+
+  template <typename T> auto operator()(std::initializer_list<T> &&v) const {
+    return rc(Obj(std::move(v)));
+  }
+
+  template <typename... Args> auto operator()(Args &&...args) const {
+    return rc(Obj(std::forward<Args>(args)...));
+  }
 };
 
-}
+static constexpr TyDict__oo<> TyDict{};
+
+} // namespace typon
+
+/*template <typename T> auto dict(std::initializer_list<T> &&v) {
+  return typon::TyDict(std::move(v));
+}*/
 
 namespace PYBIND11_NAMESPACE {
 namespace detail {
 template <typename K, typename V>
-struct type_caster<typon::TyDict<K, V>> : map_caster<typon::TyDict<K, V>, K, V> {};
-}}
+struct type_caster<typon::TyDict__oo<>::Obj<K, V>>
+    : map_caster<typon::TyDict__oo<>::Obj<K, V>, K, V> {};
+} // namespace detail
+} // namespace PYBIND11_NAMESPACE
 
 #endif // TYPON_DICT_HPP

typon/include/python/builtins/exception.hpp

@@ -9,10 +9,10 @@
 
 struct TyException_s {
   struct py_type {
-    TyStr message;
+    TyStr__oo<>::Obj message;
   };
 
-  auto operator()(const TyStr &message) const {
+  auto operator()(const TyStr__oo<>::Obj &message) const {
     return py_type{message};
   }
 };

typon/include/python/builtins/int.hpp

@@ -5,110 +5,98 @@
 #ifndef TYPON_INT_HPP
 #define TYPON_INT_HPP
 
+#include <algorithm>
 #include <sstream>
 #include <string>
-#include <algorithm>
 
 using namespace std::literals;
 
-#include "bytes.hpp"
-#include "print.hpp"
-#include "slice.hpp"
+#include "str.hpp"
 // #include <format>
 #include <fmt/format.h>
 #include <pybind11/cast.h>
 
 namespace typon {
-/*template <typename _Base0 = object>
-class TyInt__oo : classtype<_Base0, Integer__oo<>> {
-public:
+using namespace referencemodel;
+
+template <typename _Base0 = object>
+struct TyInt__oo : classtype<_Base0, TyInt__oo<>> {
+  static constexpr std::string_view name = "TyInt";
+
   struct : method {
-      auto operator()(auto self, int value) const {
-        self->value = value;
+    auto operator()(auto self, auto other) const {
+      return Obj(dot(self, value) + dot(other, value));
     }
-    } static constexpr oo__init__oo {};
+  } static constexpr oo__add__oo{};
 
   struct : method {
     auto operator()(auto self, auto other) const {
-        return Integer(dot(self, value) + dot(other, value));
+      return Obj(dot(self, value) - dot(other, value));
     }
-    } static constexpr oo__add__oo {};
+  } static constexpr oo__sub__oo{};
 
-    auto operator () (int value) const {
-      struct Obj : instance<Integer__oo<>, Obj> {
-        int value;
-      };
-      auto obj = rc(Obj{});
-      dot(obj, oo__init__oo)(value);
-      return obj;
+  struct : method {
+    auto operator()(auto self, auto other) const {
+      return Obj(dot(self, value) * dot(other, value));
     }
+  } static constexpr oo__mul__oo{};
 
+  struct : method {
+    auto operator()(auto self, auto other) const {
+      return Obj(dot(self, value) & dot(other, value));
+    }
+  } static constexpr oo__and__oo{};
 
+  struct : method {
+    auto operator()(auto self) const { return Obj(-dot(self, value)); }
+  } static constexpr oo__neg__oo{};
 
-  constexpr TyInt(int value) : value(value) {}
-  constexpr TyInt() : value(0) {}
-
-  operator int() const { return value; }
-
-  // operators
-  template <typename T> TyInt operator+(T x) const { return value + x; }
-    template <typename T> TyInt operator-(T x) const { return value - x; }
-    template <typename T> TyInt operator*(T x) const { return value * x; }
-    template <typename T> TyInt operator/(T x) const { return value / x; }
-    template <typename T> TyInt operator%(T x) const { return value % x; }
-    template <typename T> TyInt operator&(T x) const { return value & x; }
-    template <typename T> TyInt operator|(T x) const { return value | x; }
-    template <typename T> TyInt operator^(T x) const { return value ^ x; }
-    template <typename T> TyInt operator<<(T x) const { return value << x; }
-    template <typename T> TyInt operator>>(T x) const { return value >> x; }
-    template <typename T> TyInt operator&&(T x) const { return value && x; }
-    template <typename T> TyInt operator||(T x) const { return value || x; }
-    template <typename T> TyInt operator==(T x) const { return value == x; }
-    template <typename T> TyInt operator<(T x) const { return value < x; }
-
-    TyInt operator-() const { return -value; }
-
-
-
+  struct : method {
+    auto operator()(auto self, auto other) const {
+      return dot(self, value) < dot(other, value);
+    }
+  } static constexpr oo__lt__oo{};
 
-private:
-  int value;
-};*/
-    using namespace referencemodel;
-  template <typename _Base0 = object>
-  struct Integer__oo : classtype<_Base0, Integer__oo<>> {
-    static constexpr std::string_view name = "Integer";
+  struct : method {
+    auto operator()(auto self, auto other) const {
+      return dot(self, value) > dot(other, value);
+    }
+  } static constexpr oo__gt__oo{};
 
   struct : method {
-      auto operator()(auto self, int value) const {
-        self->value = value;
+    auto operator()(auto self, auto other) const {
+      return TyInt(dot(self, value) % dot(other, value));
     }
-    } static constexpr oo__init__oo {};
+  } static constexpr oo__mod__oo{};
 
   struct : method {
     auto operator()(auto self, auto other) const {
-        return TyInt(dot(self, value) + dot(other, value));
+      return dot(self, value) >= dot(other, value);
     }
-    } static constexpr oo__add__oo {};
+  } static constexpr oo__ge__oo{};
 
-    struct Obj : value<Integer__oo<>, Obj> {
+  struct : method {
+    auto operator()(auto self) const {
+      return TyStr__oo<>::Obj(std::to_string(self->value));
+    }
+  } static constexpr oo__str__oo{};
+
+  static constexpr auto oo__repr__oo = oo__str__oo;
+
+  struct Obj : value<TyInt__oo<>, Obj> {
     int value;
 
-        Obj(int value=0) : value(value) {}
+    Obj(int value = 0) : value(value) {}
     operator int() const { return value; }
   };
 
-    auto operator () (int value) const {
-      auto obj = rc(Obj{});
-      dot(obj, oo__init__oo)(value);
-      return obj;
-    }
-  };
-  static constexpr Integer__oo<> TyInt {};
+  auto operator()(int value) const { return Obj(value); }
+};
+static constexpr TyInt__oo<> TyInt{};
 
-}
+} // namespace typon
 
-inline auto operator ""_pi(unsigned long long int v) noexcept {
+inline auto operator""_pi(unsigned long long int v) noexcept {
   return typon::TyInt(v);
 }
 
@@ -120,15 +108,8 @@ template <> struct std::hash<decltype(0_pi)> {
 
 namespace PYBIND11_NAMESPACE {
 namespace detail {
-template<>
-struct type_caster<decltype(0_pi)>
-    : type_caster<int> {};
-}}
-
-template <> void repr_to(const decltype(0_pi) &x, std::ostream &s) {
-  s << x;
-}
-
-template <> void print_to<decltype(0_pi)>(const decltype(0_pi) &x, std::ostream &s) { s << x; }
+template <> struct type_caster<decltype(0_pi)> : type_caster<int> {};
+} // namespace detail
+} // namespace PYBIND11_NAMESPACE
 
 #endif // TYPON_INT_HPP

typon/include/python/builtins/list.hpp

@@ -8,14 +8,90 @@
 #include <algorithm>
 #include <ostream>
 #include <vector>
-//#include <nanobind/stl/detail/nb_list.h>
+// #include <nanobind/stl/detail/nb_list.h>
 #include <pybind11/stl.h>
 
 namespace typon {
+using namespace referencemodel;
+template <typename _Base0 = object>
+struct TyList__oo : classtype<_Base0, TyList__oo<>> {
 
-template <typename T> class TyList {
-public:
+  struct : method {
+    template <typename Self> auto operator()(Self self) const {
+      return TyList__oo<>{}(self->_v);
+    }
+  } static constexpr copy{};
+
+  struct : method {
+    template <typename Self, typename Other>
+    auto operator()(Self self, Other other) const {
+      self->_v.reserve(self->_v.size() + other.size());
+      self->_v.insert(self->_v.end(), other.begin(), other.end());
+    }
+  } static constexpr extend{};
+
+  struct : method {
+    template <typename Self, typename Other>
+    auto operator()(Self self, Other other) const {
+      auto result = TyList__oo<>{}(self->_v);
+      dot(result, extend)(other);
+      return result;
+    }
+  } static constexpr oo__add__oo{};
+
+  struct : method {
+    template <typename Self, typename Other>
+    auto operator()(Self self, Other other) const {
+      auto result = TyList__oo<>{}(self->_v);
+      result->_v->reserve(result->_v->size() * other);
+      for (int i = 0; i < other - 1; i++) {
+        dot(result, extend)(self);
+      }
+      return result;
+    }
+  } static constexpr oo__mul__oo{};
+
+  struct : method {
+    template <typename Self> auto operator()(Self self) const {
+      std::stringstream s;
+      s << '[';
+      if (self->_v->size() > 0) {
+        s << repr(self->_v->operator[](0))->value;
+        for (size_t i = 1; i < self->_v->size(); i++) {
+          s << ", ";
+          s << repr(self->_v->operator[](i))->value;
+        }
+      }
+      s << ']';
+      return typon::TyStr__oo<>::Obj(s.str());
+    }
+  } static constexpr oo__repr__oo{};
+
+  static constexpr auto oo__str__oo = oo__repr__oo;
+
+  template <typename T> struct Obj : instance<TyList__oo<>, Obj<T>> {
     using value_type = T;
+
+    std::shared_ptr<std::vector<T>> _v;
+
+    Obj(std::shared_ptr<std::vector<T>> &&v) : _v(std::move(v)) {}
+    Obj(std::vector<T> &&v)
+        : _v(std::move(std::make_shared<std::vector<T>>(std::move(v)))) {}
+    Obj(std::initializer_list<T> &&v)
+        : _v(std::make_shared<std::vector<T>>(std::move(v))) {}
+
+    Obj() : _v(std::make_shared<std::vector<T>>()) {}
+  };
+
+  template <typename T> auto operator()(std::initializer_list<T> &&v) const {
+    return rc(Obj(std::move(v)));
+  }
+
+  template <typename... Args> auto operator()(Args &&...args) const {
+    return rc(Obj(std::forward<Args>(args)...));
+  }
+
+  /*
   TyList(std::shared_ptr<std::vector<T>> &&v) : _v(std::move(v)) {}
   TyList(std::vector<T> &&v)
       : _v(std::move(std::make_shared<std::vector<T>>(std::move(v)))) {}
@@ -41,7 +117,7 @@ public:
 
   void push_back(const T &value) { _v->push_back(value); }
 
-  void clear() { _v->clear(); }
+  void clear() { _v->clear(); }*/
 
   /*operator std::vector<T>() const {
     return std::vector<T>(this->begin(), this->end());
@@ -51,7 +127,7 @@ public:
     return *reinterpret_cast<std::vector<T> *>(this);
   }*/
 
-  constexpr const T &operator[](size_t i) const { return _v->operator[](i); }
+  /*constexpr const T &operator[](size_t i) const { return _v->operator[](i); }
   constexpr T &operator[](size_t i) { return _v->operator[](i); }
 
   size_t py_len() const { return _v->size(); }
@@ -68,44 +144,24 @@ public:
     s << ']';
   }
 
-  void py_print(std::ostream &s) const { py_repr(s); }
-
-  TyList<T> operator+(const TyList<T> &other) const {
-    std::vector<T> v;
-    v.reserve(_v->size() + other._v->size());
-    v.insert(v.end(), _v->begin(), _v->end());
-    v.insert(v.end(), other._v->begin(), other._v->end());
-    return TyList<T>(std::move(v));
-  }
-
-  TyList<T> operator*(size_t n) const {
-    TyList<T> v{};
-    v._v->reserve(this->_v->size() * n);
-    for (size_t i = 0; i < n; i++) {
-      v._v->insert(v._v->end(), this->_v->begin(), this->_v->end());
-    }
-    return v;
-  }
-
-private:
-  std::shared_ptr<std::vector<T>> _v;
+  void py_print(std::ostream &s) const { py_repr(s); }*/
 };
 
+static constexpr TyList__oo<> TyList{};
 
+} // namespace typon
 
-
-
-}
-
-template <typename T> typon::TyList<T> list(std::initializer_list<T> &&v) {
-  return typon::TyList<T>(std::move(v));
+template <typename T> auto list(std::initializer_list<T> &&v) {
+  return typon::TyList(std::move(v));
 }
 
 namespace PYBIND11_NAMESPACE {
 namespace detail {
 template <typename Type>
-struct type_caster<typon::TyList<Type>> : list_caster<typon::TyList<Type>, Type> {};
-}}
+struct type_caster<typon::TyList__oo<>::Obj<Type>>
+    : list_caster<typon::TyList__oo<>::Obj<Type>, Type> {};
+} // namespace detail
+} // namespace PYBIND11_NAMESPACE
 
 /*NAMESPACE_BEGIN(NB_NAMESPACE)
 NAMESPACE_BEGIN(detail)

typon/include/python/builtins/print.hpp

@@ -5,12 +5,12 @@
 #ifndef TYPON_PRINT_HPP
 #define TYPON_PRINT_HPP
 
+#include <functional>
 #include <iostream>
 #include <ostream>
-#include <functional>
 #include <typon/typon.hpp>
 
-template <typename T>
+/*template <typename T>
 concept Streamable = requires(const T &x, std::ostream &s) {
   { s << x } -> std::same_as<std::ostream &>;
 };
@@ -42,14 +42,14 @@ concept Printable = requires(const T &x, std::ostream &s) {
 template <typename T>
 concept Reprable = requires(const T &x, std::ostream &s) {
   { repr_to(x, s) } -> std::same_as<void>;
-};
+};*/
 
 template <typename T>
 concept FunctionPointer =
     std::is_function_v<T> or std::is_member_function_pointer_v<T> or
     std::is_function_v<std::remove_pointer_t<T>>;
 
-template <Streamable T>
+/*template <Streamable T>
   requires(FunctionPointer<T>)
 void repr_to(const T &x, std::ostream &s) {
   s << "<function at 0x" << std::hex << (size_t)x << std::dec << ">";
@@ -57,7 +57,8 @@ void repr_to(const T &x, std::ostream &s) {
 
 template <typename T>
 void repr_to(const std::function<T> &x, std::ostream &s) {
-  s << "<function at 0x" << std::hex << (size_t)x.template target<T*>() << std::dec
+  s << "<function at 0x" << std::hex << (size_t)x.template target<T*>() <<
+std::dec
     << ">";
 }
 
@@ -75,7 +76,7 @@ void print_to(const std::shared_ptr<T> &x, std::ostream &s) {
 template <Reprable T>
 void repr_to(const std::shared_ptr<T> &x, std::ostream &s) {
   repr_to(*x, s);
-}
+}*/
 
 /*
 template <Printable T, Printable... Args>
@@ -86,18 +87,19 @@ typon::Task<void> print(T const &head, Args const &...args) {
 }*/
 
 struct {
-  typon::TyNone operator()() { std::cout << '\n'; return {}; }
+  typon::TyNone operator()() {
+    std::cout << '\n';
+    return {};
+  }
 
-  template <Printable T, Printable... Args>
+  template <typename T, typename... Args>
   typon::TyNone operator()(T const &head, Args const &...args) {
-    print_to(head, std::cout);
-    (((std::cout << ' '), print_to(args, std::cout)), ...);
+    std::cout << str(head)->value;
+    (((std::cout << ' '), (std::cout << str(args)->value)), ...);
     std::cout << '\n';
     return {};
   }
 } print;
 // typon::Task<void> print() { std::cout << '\n'; co_return; }
 
-
-
 #endif // TYPON_PRINT_HPP

typon/include/python/builtins/range.hpp

@@ -12,30 +12,30 @@ namespace view = std::views;
 #include <python/basedef.hpp>
 
 auto stride = [](int n) {
-  return [s = -1, n](auto const&) mutable { s = (s + 1) % n; return !s; };
+  return [s = -1, n](auto const &) mutable {
+    s = (s + 1) % n;
+    return !s;
+  };
 };
 
 // todo: proper range support
-struct range_s : TyBuiltin<range_s>
-{
+struct range_s : TyBuiltin<range_s> {
   auto sync(int start, int stop, int step = 1) {
     // https://www.modernescpp.com/index.php/c-20-pythons-map-function/
-    if(step == 0) {
+    if (step == 0) {
       throw std::invalid_argument("Step cannot be 0");
     }
     auto Step = start < stop ? step : -step;
     auto Begin = std::min(start, stop);
     auto End = Step < 0 ? Begin : std::max(start, stop);
-    return view::iota(Begin, End)
-           | view::filter(stride(std::abs(Step)))
-           | view::transform([start, stop](std::size_t i){
+    return view::iota(Begin, End) | view::filter(stride(std::abs(Step))) |
+           view::transform([start, stop](std::size_t i) {
              return start < stop ? i : stop - (i - start);
            });
   }
 
   auto sync(int stop) { return sync(0, stop); }
 
-
 } range;
 
 #endif // TYPON_RANGE_HPP

typon/include/python/builtins/set.hpp

@@ -71,7 +71,7 @@ public:
   }
 };
 
-}
+} // namespace typon
 
 template <typename T> typon::TySet<T> set(std::initializer_list<T> &&s) {
   return typon::TySet<T>(std::move(s));

typon/include/python/builtins/slice.hpp

@@ -5,10 +5,10 @@
 #ifndef TYPON_SLICE_HPP
 #define TYPON_SLICE_HPP
 
-#include <optional>
-#include <utility>
 #include <Python.h>
+#include <optional>
 #include <stdint.h>
+#include <utility>
 
 struct TySlice {
   TySlice() = default;
@@ -17,7 +17,9 @@ struct TySlice {
   TySlice &operator=(const TySlice &) = default;
   TySlice &operator=(TySlice &&) = default;
 
-  TySlice(std::optional<ssize_t> start, std::optional<ssize_t> stop, std::optional<ssize_t> step) : start(start), stop(stop), step(step) {
+  TySlice(std::optional<ssize_t> start, std::optional<ssize_t> stop,
+          std::optional<ssize_t> step)
+      : start(start), stop(stop), step(step) {
     if (step == 0) {
       throw std::runtime_error("slice step cannot be zero");
     }
@@ -52,7 +54,8 @@ struct TySlice {
       res.stop = this->stop.value();
     }
 
-    auto len = PySlice_AdjustIndices(seq_length, &res.start, &res.stop, res.step);
+    auto len =
+        PySlice_AdjustIndices(seq_length, &res.start, &res.stop, res.step);
 
     return {len, res};
   }

typon/include/python/builtins/str.hpp

@@ -5,20 +5,19 @@
 #ifndef TYPON_STR_HPP
 #define TYPON_STR_HPP
 
+#include <algorithm>
 #include <sstream>
 #include <string>
-#include <algorithm>
 
 using namespace std::literals;
 
 #include "bytes.hpp"
-#include "print.hpp"
 #include "slice.hpp"
 // #include <format>
 #include <fmt/format.h>
 #include <pybind11/cast.h>
 
-class TyStr : public std::string {
+/*class TyStr : public std::string {
 public:
   TyStr() : std::string() {}
   TyStr(const std::string &s) : std::string(s) {}
@@ -108,8 +107,8 @@ inline constexpr TyStr operator""_ps(const char *s, size_t len) noexcept {
 }
 
 template<typename Self>
-TyStr TyBytes::decode_s::operator()(Self self, const std::string &encoding) const {
-  return TyStr(self.begin(), self.end());
+TyStr TyBytes::decode_s::operator()(Self self, const std::string &encoding)
+const { return TyStr(self.begin(), self.end());
 }
 
 template <typename T> TyStr str(const T &x) {
@@ -150,6 +149,84 @@ struct {
     std::getline(std::cin, input);
         return input;
   }
-} input;
+} input;*/
+
+namespace typon {
+using namespace referencemodel;
+template <typename _Base0 = object>
+struct TyStr__oo : classtype<_Base0, TyStr__oo<>> {
+  static constexpr std::string_view name = "TyStr";
+
+  struct : method {
+    auto operator()(auto self, auto other) const {
+      return Obj(dot(self, value) + dot(other, value));
+    }
+  } static constexpr oo__add__oo{};
+
+  struct : method {
+    auto operator()(auto self) const { return Obj(self->value); }
+  } static constexpr oo__str__oo{};
+
+  struct : method {
+    auto operator()(auto self) const {
+      return Obj(fmt::format("\"{}\"", self->value));
+    }
+  } static constexpr oo__repr__oo{};
+
+  struct Obj : value<TyStr__oo<>, Obj> {
+    std::string value;
+
+    constexpr Obj() : value() {}
+    constexpr Obj(std::string value) : value(value) {}
+    operator std::string() const { return value; }
+  };
+
+  auto operator()(std::string value) const { return Obj(value); }
+};
+static constexpr TyStr__oo<> TyStr{};
+
+} // namespace typon
+
+inline constexpr auto operator""_ps(const char *s, size_t len) noexcept {
+  return typon::TyStr__oo<>::Obj(std::string(s, len));
+}
+
+/*template <typename T> auto str(const T &x) { return dot(x, oo__str__oo)(); }
+
+template <typename T>
+concept NoStr = not requires(T x) { dot(x, oo__str__oo)(); };
+
+template <NoStr T> auto str(const T &x) {
+  std::stringstream s;
+  s << x;
+  return typon::TyStr__oo<>::Obj(s.str());
+}
+*/
+
+template <typename T>
+concept HasStr = requires(T x) { dot(x, oo__str__oo)(); };
+
+template <typename T>
+concept HasRepr = requires(T x) { dot(x, oo__repr__oo)(); };
+
+template <typename T> auto str(const T &x) {
+  if constexpr (HasStr<T>) {
+    return dot(x, oo__str__oo)();
+  } else {
+    std::stringstream s;
+    s << x;
+    return typon::TyStr__oo<>::Obj(s.str());
+  }
+}
+
+template <typename T> auto repr(const T &x) {
+  if constexpr (HasRepr<T>) {
+    return dot(x, oo__repr__oo)();
+  } else {
+    std::stringstream s;
+    s << x;
+    return typon::TyStr__oo<>::Obj(s.str());
+  }
+}
 
 #endif // TYPON_STR_HPP

typon/include/python/hashlib.hpp

@@ -74,16 +74,14 @@ struct hashlib_t {
     auto ctx = tyObj<SHA256_CTX>();
     SHA256_Init(ctx.get());
     return tyObj<_Hash_s>(ctx, (openssl_update)SHA256_Update,
-                                 (openssl_final)SHA256_Final,
-                                 SHA256_DIGEST_LENGTH);
+                          (openssl_final)SHA256_Final, SHA256_DIGEST_LENGTH);
   })
 
   FUNCTION(auto, sha512, (), {
     auto ctx = tyObj<SHA512_CTX>();
     SHA512_Init(ctx.get());
     return tyObj<_Hash_s>(ctx, (openssl_update)SHA512_Update,
-                                 (openssl_final)SHA512_Final,
-                                 SHA512_DIGEST_LENGTH);
+                          (openssl_final)SHA512_Final, SHA512_DIGEST_LENGTH);
   })
 
 } all;

typon/include/python/json.hpp

@@ -9,7 +9,8 @@
 
 namespace py_json {
 struct json_t {
-  FUNCTION(template <typename T> typon::Task<void>, dump, (const T &x, typon::PyFile &fp), {
+  FUNCTION(template <typename T> typon::Task<void>, dump,
+           (const T &x, typon::PyFile &fp), {
              std::stringstream ss;
              repr_to(x, ss);
              co_await dotp(fp, write)(ss.str());

typon/include/python/os.hpp

@@ -21,8 +21,7 @@ int no_special(const struct dirent *d) {
 
 namespace py_os {
 struct os_t {
-  FUNCTION(
-      auto, fsdecode, (std::string s), { return s; })
+  FUNCTION(auto, fsdecode, (std::string s), { return s; })
 
   struct Stat_Result_s {
     struct py_type {
@@ -64,8 +63,9 @@ struct os_t {
       })
 
       METHOD(auto, begin, (Self self), { return *self; })
-      METHOD(auto, end, (Self self),
-             { return py_type(self->basepath, self->namelist, self->n, self->n); })
+      METHOD(auto, end, (Self self), {
+        return py_type(self->basepath, self->namelist, self->n, self->n);
+      })
 
       auto operator*() {
         auto name = TyStr(this->namelist[this->current]->d_name);
@@ -95,29 +95,23 @@ struct os_t {
     };
   } _Scandiriterator;
 
-  FUNCTION(typon::Task<TyObj<Stat_Result_s>>, stat, (const TyStr &path),
-           {
+  FUNCTION(typon::Task<TyObj<Stat_Result_s>>, stat, (const TyStr &path), {
     const char *path_c = path.c_str();
     struct statx statxbuf;
-             if (int err = co_await typon::io::statx(AT_FDCWD, path_c, 0,
-                                                     STATX_SIZE, &statxbuf)) {
+    if (int err = co_await typon::io::statx(AT_FDCWD, path_c, 0, STATX_SIZE,
+                                            &statxbuf)) {
       system_error(-err, "statx()");
     }
     co_return TyObj<Stat_Result_s>(new Stat_Result_s::py_type{
-                 statxbuf.stx_mode,
-                 statxbuf.stx_ino,
+        statxbuf.stx_mode, statxbuf.stx_ino,
         makedev(statxbuf.stx_dev_major, statxbuf.stx_dev_minor),
-                 statxbuf.stx_nlink,
-                 statxbuf.stx_uid,
-                 statxbuf.stx_gid,
+        statxbuf.stx_nlink, statxbuf.stx_uid, statxbuf.stx_gid,
         statxbuf.stx_size,
         statxbuf.stx_atime.tv_sec + statxbuf.stx_atime.tv_nsec / 1e9f,
         statxbuf.stx_mtime.tv_sec + statxbuf.stx_mtime.tv_nsec / 1e9f,
         statxbuf.stx_ctime.tv_sec + statxbuf.stx_ctime.tv_nsec / 1e9f,
-                 statxbuf.stx_blocks,
-                 statxbuf.stx_blksize,
-                 makedev(statxbuf.stx_rdev_major, statxbuf.stx_rdev_minor),
-                 0,
+        statxbuf.stx_blocks, statxbuf.stx_blksize,
+        makedev(statxbuf.stx_rdev_major, statxbuf.stx_rdev_minor), 0,
         statxbuf.stx_btime.tv_sec + statxbuf.stx_btime.tv_nsec / 1e9});
   })
 
@@ -146,8 +140,8 @@ auto &get_all() { return all; }
 } // namespace py_os
 
 namespace typon {
-  using PyStat_Result = TyObj<py_os::os_t::Stat_Result_s>;
-  using Py_Scandiriterator = TyObj<py_os::os_t::_Scandiriterator_s>;
-}
+using PyStat_Result = TyObj<py_os::os_t::Stat_Result_s>;
+using Py_Scandiriterator = TyObj<py_os::os_t::_Scandiriterator_s>;
+} // namespace typon
 
 #endif // TYPON_OS_HPP

typon/include/python/socket.hpp

@@ -6,8 +6,8 @@
 #define TYPON_SOCKET_HPP
 
 #include "builtins.hpp"
-#include <netinet/in.h>
 #include <netdb.h>
+#include <netinet/in.h>
 #include <tuple>
 
 namespace py_socket {
@@ -25,12 +25,14 @@ struct socket_t {
 
   struct socket_s {
     struct py_type {
-      METHOD(typon::Task<std::tuple<TyObj<py_type> COMMA() std::string>>, accept, (Self self), {
+      METHOD(typon::Task<std::tuple<TyObj<py_type> COMMA() std::string>>,
+             accept, (Self self), {
                int connfd = co_await typon::io::accept(self->fd, NULL, NULL);
                if (connfd < 0) {
                  system_error(-connfd, "accept()");
                }
-        co_return std::make_tuple(tyObj<py_type>(connfd), std::string("")); // TODO
+               co_return std::make_tuple(tyObj<py_type>(connfd),
+                                         std::string("")); // TODO
              })
 
       METHOD(typon::Task<void>, close, (Self self),
@@ -43,20 +45,24 @@ struct socket_t {
         }
       })
 
-      METHOD(void, setsockopt, (Self self, int level, int optname, int optval), {
-        if (::setsockopt(self->fd, level, optname, &optval, sizeof(int)) < 0) {
+      METHOD(void, setsockopt, (Self self, int level, int optname, int optval),
+             {
+               if (::setsockopt(self->fd, level, optname, &optval,
+                                sizeof(int)) < 0) {
                  system_error(errno, "setsockopt()");
                }
              })
 
-      METHOD(void, bind, (Self self, std::tuple<std::string COMMA() int> address), {
+      METHOD(void, bind,
+             (Self self, std::tuple<std::string COMMA() int> address), {
                auto [host, port] = address;
                sockaddr_in6 addr;
                std::memset(&addr, 0, sizeof(addr));
                addr.sin6_family = AF_INET6;
                addr.sin6_port = htons(port);
                addr.sin6_addr = in6addr_any;
-        if (::bind(self->fd, (const sockaddr *)&addr, sizeof(addr)) < 0) {
+               if (::bind(self->fd, (const sockaddr *)&addr, sizeof(addr)) <
+                   0) {
                  system_error(errno, "bind()");
                }
              })
@@ -77,8 +83,7 @@ struct socket_t {
 
       py_type(int fd = -1) : fd(fd) {}
 
-      py_type(const py_type &other)
-          : fd(other.fd) {}
+      py_type(const py_type &other) : fd(other.fd) {}
 
       int fd;
     };
@@ -92,7 +97,10 @@ struct socket_t {
     }
   } socket;
 
-  FUNCTION(auto, getaddrinfo, (std::string host, int port, int family=0, int type_=0, int proto=0, int flags=0), {
+  FUNCTION(auto, getaddrinfo,
+           (std::string host, int port, int family = 0, int type_ = 0,
+            int proto = 0, int flags = 0),
+           {
              addrinfo hints;
              std::memset(&hints, 0, sizeof(hints));
              hints.ai_family = family;
@@ -102,7 +110,9 @@ struct socket_t {
              addrinfo *res;
              // convert port to string
              std::string port_str = std::to_string(port);
-    if (int err = ::getaddrinfo(host.c_str(), port_str.c_str(), &hints, &res); err != 0) {
+             if (int err = ::getaddrinfo(host.c_str(), port_str.c_str(), &hints,
+                                         &res);
+                 err != 0) {
                system_error(err, "getaddrinfo()");
              }
              return res;

typon/include/python/sys.hpp

@@ -5,24 +5,20 @@
 #ifndef TYPON_SYS_HPP
 #define TYPON_SYS_HPP
 
-#include <iostream>
 #include "builtins.hpp"
+#include <iostream>
 
 namespace py_sys {
 struct sys_t {
   static constexpr auto &stdin = std::cin;
   static constexpr auto &stdout = std::cout;
   static constexpr auto &stderr = std::cerr;
-  typon::TyList<TyStr> argv;
+  typon::TyList__oo<>::Obj<typon::TyStr__oo<>::Obj> argv;
 
-  FUNCTION(void, exit, (int code), {
-    std::exit(code);
-  })
+  FUNCTION(void, exit, (int code), { std::exit(code); })
 } all;
 
-auto& get_all() {
-  return all;
-}
+auto &get_all() { return all; }
 } // namespace py_sys
 
 #endif // TYPON_SYS_HPP

typon/trans/tests/builtins_test.py

@@ -42,15 +42,19 @@ if __name__ == "__main__":
     sum = 0
     for i in range(15):
         sum = sum + i
-    a = [n for n in range(10)]
-    #b = [x for x in a if x % 2 == 0]
+    # a = [n for n in range(10)]
+    # b = [x for x in a if x % 2 == 0]
     #c = [y * y for y in b]
     print("C++   " if is_cpp() else "Python",
-          "res=", 5, ".", True, [4, 5, 6], {7, 8, 9},
-          #[1, 2] + [3, 4], [5, 6] * 3, {1: 7, 9: 3},
-          #0x55 & 7 == 5,
-          #3j,
+          "res=", 5, ".", True, [4, 5, 6],
+          #{7, 8, 9},
+    #       #[1, 2] + [3, 4], [5, 6] * 3,
+                 {1: 7, 9: 3},
+    #       0x55 & 7 == 5,
+    #       #3j,
           sum,
-          a)
+    #       # a,
+    #       # b
+          )
     print("Typon")
     print()

typon/trans/tests/webserver.py

@@ -6,17 +6,12 @@ from socket import socket, SOCK_STREAM, AF_INET6, SOL_SOCKET, SO_REUSEADDR
 from typon import fork
 #fork = lambda x: x()
 
-BACKLOG = 1024
-PORT = 8000
 
-response_fmt = \
-    "HTTP/1.0 200 OK\r\n" \
-    "Content-type: text/plain\r\n" \
-    "Content-length: {}\r\n" \
-    "\r\n" \
-    "{}"
+
 
 def create_listening_socket(port):
+    BACKLOG = 1024
+
     sockfd = socket(AF_INET6, SOCK_STREAM)
     sockfd.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
     sockfd.bind(("", port))
@@ -33,6 +28,12 @@ def handle_connection(connfd, filepath):
     buf = connfd.recv(1024).decode("utf-8")
     length = buf.find("\r\n\r\n")
     content = read_file(filepath)
+    response_fmt = \
+        "HTTP/1.0 200 OK\r\n" \
+        "Content-type: text/plain\r\n" \
+        "Content-length: {}\r\n" \
+        "\r\n" \
+        "{}"
     response = response_fmt.format(len(content), content)
     connfd.send(response.encode("utf-8"))
     connfd.close()
@@ -44,6 +45,8 @@ def server_loop(sockfd, filepath):
         fork(lambda: handle_connection(connfd, filepath))
 
 if __name__ == "__main__":
+    PORT = 8000
+
     if len(sys.argv) > 2:
         print("Usage: webserver [ filepath ]")
         sys.exit(1)

typon/trans/transpiler/phases/desugar_compare/__init__.py

@@ -33,7 +33,8 @@ class DesugarCompare(ast.NodeTransformer):
             )
             if type(op) in (ast.NotIn, ast.IsNot):
                 call = ast.UnaryOp(ast.Not(), call, **lnd)
+            call.orig_node = ast.Compare(left, [op], [right], **lnd)
             res.values.append(call)
         if len(res.values) == 1:
-            return res.values[0]
+            res = res.values[0]
         return res
\ No newline at end of file

typon/trans/transpiler/phases/emit_cpp/expr.py

@@ -57,7 +57,7 @@ class ExpressionVisitor(NodeVisitor):
             # TODO: escape sequences
             yield f"\"{repr(node.value)[1:-1]}\"_ps"
         elif isinstance(node.value, bool):
-            yield str(node.value).lower()
+            yield f"typon::TyBool({str(node.value).lower()})"
         elif isinstance(node.value, int):
             # TODO: bigints
             yield str(node.value) + "_pi"
@@ -189,7 +189,7 @@ class ExpressionVisitor(NodeVisitor):
         yield from self.visit(node.type.deref().return_type)
         yield "{"
         yield "return"
-        yield from self.reset().visit(node.body)
+        yield from self.visit(node.body)
         yield ";"
         yield "}"
 
@@ -239,9 +239,9 @@ class ExpressionVisitor(NodeVisitor):
 
     def visit_List(self, node: ast.List) -> Iterable[str]:
         if node.elts:
-            yield "typon::TyList{"
+            yield "typon::TyList({"
             yield from join(", ", map(self.visit, node.elts))
-            yield "}"
+            yield "})"
         else:
             yield from self.visit(node.type)
             yield "{}"
@@ -264,21 +264,24 @@ class ExpressionVisitor(NodeVisitor):
             yield "}"
 
         if node.keys:
-            yield from self.visit(node.type)
+            #yield from self.visit(node.type)
+            yield "typon::TyDict("
             yield "{"
             yield from join(", ", map(visit_item, node.keys, node.values))
             yield "}"
+            yield ")"
         else:
             yield from self.visit(node.type)
             yield "{}"
 
     def visit_Subscript(self, node: ast.Subscript) -> Iterable[str]:
-        if isinstance(node.type, TypeType) and isinstance(node.type.type_object, MonomorphizedUserType):
-            yield node.type.type_object.name
-            return
-        yield from self.prec("[]").visit(node.value)
-        yield "["
-        yield from self.reset().visit(node.slice)
+        # if isinstance(node.type, TypeType) and isinstance(node.type.type_object, MonomorphizedUserType):
+        #     yield node.type.type_object.name
+        #     return
+        yield "("
+        yield from self.visit(node.value)
+        yield ")["
+        yield from self.visit(node.slice)
         yield "]"
 
     def visit_UnaryOp(self, node: ast.UnaryOp) -> Iterable[str]:

typon/trans/transpiler/phases/emit_cpp/function.py

@@ -5,7 +5,7 @@ from typing import Iterable, Optional
 from transpiler.phases.emit_cpp.expr import ExpressionVisitor
 from transpiler.phases.typing.common import IsDeclare
 from transpiler.phases.typing.scope import Scope
-from transpiler.phases.emit_cpp.visitors import NodeVisitor, flatmap, CoroutineMode
+from transpiler.phases.emit_cpp.visitors import NodeVisitor, flatmap, CoroutineMode, join
 from transpiler.phases.typing.types import CallableInstanceType, BaseType
 
 
@@ -13,11 +13,15 @@ def emit_function(name: str, func: CallableInstanceType) -> Iterable[str]:
     yield f"struct : referencemodel::function {{"
     yield "typon::Task<typon::TyNone> operator()("
 
-    for arg, ty in zip(func.block_data.node.args.args, func.parameters):
-        yield "auto "
-        yield arg
+    def emit_arg(arg, ty):
+        yield "auto"
+        yield arg.arg
+
+    yield from join(",", (emit_arg(arg, ty) for arg, ty in zip(func.block_data.node.args.args, func.parameters)))
 
     yield ") const {"
+    for rd in func.block_data.scope.root_decls:
+        pass
     yield from BlockVisitor(func.block_data.scope, generator=CoroutineMode.TASK).visit(func.block_data.node.body)
     yield "co_return {};"
     yield "}"
@@ -152,14 +156,15 @@ class BlockVisitor(NodeVisitor):
     #
     #     yield "}"
     #
-    def visit_lvalue(self, lvalue: ast.expr, declare: IsDeclare) -> Iterable[str]:
+    def visit_lvalue(self, lvalue: ast.expr, declare: IsDeclare, allow_auto: bool = False) -> Iterable[str]:
         if isinstance(lvalue, ast.Tuple):
-            raise NotImplementedError()
             # for name, decl, ty in zip(lvalue.elts, declare, lvalue.type.args):
             #     if decl:
             #         yield from self.visit_lvalue(name, True)
             #         yield ";"
-            # yield f"std::tie({', '.join(flatmap(self.visit_lvalue, lvalue.elts))})"
+            def helper(args):
+                return self.visit_lvalue(*args)
+            yield f"std::tie({', '.join(flatmap(helper, zip(lvalue.elts, declare.detail)))})"
         elif isinstance(lvalue, ast.Name):
             if lvalue.id == "_":
                 if not declare:
@@ -171,6 +176,9 @@ class BlockVisitor(NodeVisitor):
             #     yield self.scope.declare(name, (" ".join(self.expr().visit(val)), val) if val else None,
             #                              getattr(val, "is_future", False))
             if declare:
+                if allow_auto:
+                    yield "auto"
+                else:
                     yield "decltype("
                     yield from self.expr().visit(declare.initial_value)
                     yield ")"
@@ -186,18 +194,30 @@ class BlockVisitor(NodeVisitor):
     def visit_Assign(self, node: ast.Assign) -> Iterable[str]:
         if len(node.targets) != 1:
             raise NotImplementedError(node)
-        yield from self.visit_lvalue(node.targets[0], node.is_declare)
+        yield from self.visit_lvalue(node.targets[0], node.is_declare, True)
         yield " = "
         yield from self.expr().visit(node.value)
         yield ";"
 
     def visit_AnnAssign(self, node: ast.AnnAssign) -> Iterable[str]:
-        yield from self.visit_lvalue(node.target, node.is_declare)
+        yield from self.visit_lvalue(node.target, node.is_declare, node.value is not None)
         if node.value:
             yield " = "
             yield from self.expr().visit(node.value)
         yield ";"
 
+    def visit_If(self, node: ast.If) -> Iterable[str]:
+        yield "if ("
+        yield from self.expr().visit(node.test)
+        yield ")"
+        yield from self.emit_block(node.inner_scope, node.body)
+        if node.orelse:
+            yield "else "
+            if isinstance(node.orelse, ast.If):
+                yield from self.visit(node.orelse)
+            else:
+                yield from self.emit_block(node.orelse_scope, node.orelse)
+
 
     def visit_For(self, node: ast.For) -> Iterable[str]:
         if not isinstance(node.target, ast.Name):
@@ -216,8 +236,35 @@ class BlockVisitor(NodeVisitor):
             yield ")"
             yield from self.emit_block(node.inner_scope, node.orelse)
 
+    def visit_While(self, node: ast.While) -> Iterable[str]:
+        if node.orelse:
+            yield "auto"
+            yield node.orelse_variable
+            yield "= true;"
+        yield "while ("
+        yield from self.expr().visit(node.test)
+        yield ")"
+        yield from self.emit_block(node.inner_scope, node.body)
+        if node.orelse:
+            yield "if ("
+            yield node.orelse_variable
+            yield ")"
+            yield from self.emit_block(node.inner_scope, node.orelse)
+
+
     def emit_block(self, scope: Scope, items: Iterable[ast.stmt]) -> Iterable[str]:
         yield "{"
         for child in items:
             yield from BlockVisitor(scope, generator=self.generator).visit(child)
         yield "}"
+
+    def visit_Return(self, node: ast.Return) -> Iterable[str]:
+        if CoroutineMode.ASYNC in self.generator:
+            yield "co_return "
+        else:
+            yield "return "
+        if node.value:
+            yield from self.expr().visit(node.value)
+        yield ";"
+
+

typon/trans/transpiler/phases/emit_cpp/module.py

@@ -3,7 +3,7 @@ from typing import Iterable
 from transpiler.phases.emit_cpp.class_ import emit_class
 from transpiler.phases.emit_cpp.function import emit_function
 from transpiler.phases.typing.modules import ModuleType
-from transpiler.phases.typing.types import CallableInstanceType, ClassTypeType
+from transpiler.phases.typing.types import CallableInstanceType, ClassTypeType, TypeVariable
 
 
 def emit_module(mod: ModuleType) -> Iterable[str]:
@@ -17,6 +17,8 @@ def emit_module(mod: ModuleType) -> Iterable[str]:
         if not field.in_class_def:
             continue
         ty = field.type.deref()
+        from transpiler.phases.typing.expr import ScoperExprVisitor
+        ScoperExprVisitor(ty.block_data.scope).visit_function_call(ty, [TypeVariable() for _ in ty.parameters])
         x = 5
         match ty:
             case CallableInstanceType():

typon/trans/transpiler/phases/emit_cpp/visitors.py

@@ -69,7 +69,9 @@ class NodeVisitor(UniversalVisitor):
             case types.TY_STR:
                 yield "typon::TyStr"
             case types.TypeVariable(name):
-                raise UnresolvedTypeVariableError(node)
+                yield f"$VAR__{name}"
+
+                #raise UnresolvedTypeVariableError(node)
             case types.GenericInstanceType():
                 yield from self.visit(node.generic_parent)
                 yield "<"

typon/trans/transpiler/phases/emit_cpp2/consts.py

@@ -72,9 +72,9 @@ PRECEDENCE_LEVELS = {op: i for i, ops in enumerate(PRECEDENCE) for op in ops}
 """Mapping of C++ operators to their precedence level."""
 
 MAPPINGS = {
-    "True": "true",
-    "False": "false",
-    "None": "nullptr",
+    "True": "typon::TyBool(true)",
+    "False": "typon::TyBool(false)",
+    "None": "typon::TyNone{}",
     "operator": "operator_",
 }
 """Mapping of Python builtin constants to C++ equivalents."""

typon/trans/transpiler/phases/typing/__init__.py

 from transpiler.phases.typing.common import PRELUDE
 from transpiler.phases.typing.scope import VarKind, VarDecl
 from transpiler.phases.typing.types import TY_TASK, TY_CALLABLE, TY_OPTIONAL, TY_CPP_TYPE, TY_BUILTIN_FEATURE, TY_TUPLE, \
-    TY_DICT, TY_SET, TY_LIST, TY_COMPLEX, TY_BYTES, TY_STR, TY_FLOAT, TY_INT, TY_BOOL, TY_OBJECT
+    TY_DICT, TY_SET, TY_LIST, TY_COMPLEX, TY_BYTES, TY_STR, TY_FLOAT, TY_INT, TY_BOOL, TY_OBJECT, TY_JOIN, TY_FUTURE, \
+    TY_FORKED, TY_GENERATOR
 
 prelude_vars = {
     "object": TY_OBJECT,
@@ -17,7 +18,11 @@ prelude_vars = {
     "tuple": TY_TUPLE,
     "BuiltinFeature": TY_BUILTIN_FEATURE,
     "CppType": TY_CPP_TYPE,
-    "Task": TY_TASK
+    "Task": TY_TASK,
+    "Join": TY_JOIN,
+    "Future": TY_FUTURE,
+    "Forked": TY_FORKED,
+    "Generator": TY_GENERATOR,
 }
 
 PRELUDE.vars.update({name: VarDecl(VarKind.LOCAL, ty.type_type()) for name, ty in prelude_vars.items()})

typon/trans/transpiler/phases/typing/block.py

@@ -5,7 +5,8 @@ import importlib
 from dataclasses import dataclass
 
 from transpiler.exceptions import CompileError
-from transpiler.phases.typing.types import BaseType, TypeVariable
+from transpiler.phases.typing.types import BaseType, TypeVariable, CallableInstanceType, TY_NONE, PromiseInstanceType, \
+    TupleInstanceType, RuntimeValue, PromiseKind
 from transpiler.utils import highlight, linenodata
 from transpiler.phases.typing.common import ScoperVisitor, is_builtin, DeclareInfo
 from transpiler.phases.typing.expr import ScoperExprVisitor, DUNDER
@@ -80,8 +81,8 @@ class ScoperBlockVisitor(ScoperVisitor):
             raise NotImplementedError(node)
         target = node.targets[0]
         ty = self.get_type(node.value)
-        decl = self.visit_assign_target(target, ty)
-        node.is_declare = DeclareInfo(node.value) if decl else None
+        decl = self.visit_assign_target(target, ty, node.value)
+        node.is_declare = DeclareInfo(decl, node.value) if decl else None
 
     def visit_AnnAssign(self, node: ast.AnnAssign):
         if node.simple != 1:
@@ -89,14 +90,14 @@ class ScoperBlockVisitor(ScoperVisitor):
         if not isinstance(node.target, ast.Name):
             raise NotImplementedError(node)
         ty = self.visit_annotation(node.annotation)
-        decl = self.visit_assign_target(node.target, ty)
-        node.is_declare = DeclareInfo(node.value) if decl else None
+        decl = self.visit_assign_target(node.target, ty, node.value)
+        node.is_declare = DeclareInfo(decl, node.value) if decl else None
         if node.value is not None:
             ty_val = self.get_type(node.value)
             __TB__ = f"unifying annotation {highlight(node.annotation)} with value {highlight(node.value)} of type {highlight(ty_val)}"
             ty.unify(ty_val)
 
-    def visit_assign_target(self, target, decl_val: BaseType) -> bool:
+    def visit_assign_target(self, target, decl_val: BaseType, val: ast.expr = None) -> bool:
         __TB__ = f"analyzing assignment target {highlight(target)} with value {highlight(decl_val)}"
         if isinstance(target, ast.Name):
             if target.id == "_":
@@ -107,20 +108,26 @@ class ScoperBlockVisitor(ScoperVisitor):
                 vdecl.type.unify(decl_val)
                 return False
             else:
-                self.scope.vars[target.id] = VarDecl(VarKind.LOCAL, decl_val)
+                # self.scope.vars[target.id] = VarDecl(VarKind.LOCAL, decl_val)
+                # if self.scope.kind == ScopeKind.FUNCTION_INNER:
+                #     self.root_decls[target.id] = VarDecl(VarKind.OUTER_DECL, decl_val)
+                #     return False
+                # return True
+                val = val or RuntimeValue()
+                self.scope.function.vars[target.id] = VarDecl(VarKind.LOCAL, decl_val, val)
                 if self.scope.kind == ScopeKind.FUNCTION_INNER:
-                    self.root_decls[target.id] = VarDecl(VarKind.OUTER_DECL, decl_val)
+                    self.scope.function.root_decls[target.id] = val
                     return False
                 return True
         elif isinstance(target, ast.Tuple):
-            if not isinstance(decl_val, TupleType):
+            if not isinstance(decl_val, TupleInstanceType):
                 from transpiler.phases.typing.exceptions import InvalidUnpackError
                 raise InvalidUnpackError(decl_val)
-            if len(target.elts) != len(decl_val.args):
+            if len(target.elts) != len(decl_val.fields):
                 from transpiler.phases.typing.exceptions import InvalidUnpackCountError
                 raise InvalidUnpackCountError(decl_val, len(target.elts))
             target.type = decl_val
-            decls = [self.visit_assign_target(t, ty) for t, ty in zip(target.elts, decl_val.args)]  # eager evaluated
+            decls = [self.visit_assign_target(t, ty, ast.Name(str(t))) for t, ty in zip(target.elts, decl_val.fields)]  # eager evaluated
             return decls
         elif isinstance(target, ast.Attribute):
             attr_type = self.expr().visit(target)
@@ -202,9 +209,11 @@ class ScoperBlockVisitor(ScoperVisitor):
             from transpiler.phases.typing.exceptions import OutsideFunctionError
             raise OutsideFunctionError()
         ftype = fct.obj_type
-        assert isinstance(ftype, FunctionType)
+        assert isinstance(ftype, CallableInstanceType)
         vtype = self.expr().visit(node.value) if node.value else TY_NONE
-        vtype.unify(ftype.return_type.return_type if isinstance(ftype.return_type, Promise) else ftype.return_type)
+        vtype.unify(ftype.return_type.deref()
+                    if isinstance(ftype.return_type.resolve(), PromiseInstanceType)
+                    else ftype.return_type)
         self.scope.diverges = True
         #fct.has_return = True
 

typon/trans/transpiler/phases/typing/common.py

@@ -129,6 +129,7 @@ def is_builtin(x, feature):
 
 @dataclass
 class DeclareInfo:
+    detail: bool | list[bool]
     initial_value: Optional[ast.expr] = None
 
 

typon/trans/transpiler/phases/typing/expr.py

@@ -8,7 +8,7 @@ from transpiler.phases.typing.common import ScoperVisitor, is_builtin
 from transpiler.phases.typing.exceptions import ArgumentCountMismatchError, TypeMismatchKind, TypeMismatchError
 from transpiler.phases.typing.types import BaseType, TY_STR, TY_BOOL, TY_INT, TY_COMPLEX, TY_FLOAT, TY_NONE, \
     ClassTypeType, ResolvedConcreteType, GenericType, CallableInstanceType, TY_LIST, TY_SET, TY_DICT, RuntimeValue, \
-    TypeVariable, TY_LAMBDA, TypeListType, MethodType, TY_TUPLE
+    TypeVariable, TY_LAMBDA, TypeListType, MethodType, TY_TUPLE, PromiseInstanceType
 from transpiler.phases.typing.scope import ScopeKind, VarDecl, VarKind
 from transpiler.utils import linenodata
 
@@ -52,7 +52,7 @@ class ScoperExprVisitor(ScoperVisitor):
         return res
 
     def visit_Tuple(self, node: ast.Tuple) -> BaseType:
-        return TY_TUPLE.instantiate_(*[self.visit(e) for e in node.elts])
+        return TY_TUPLE.instantiate([self.visit(e) for e in node.elts])
 
     def visit_Slice(self, node: ast.Slice) -> BaseType:
         for n in ("lower", "upper", "step"):
@@ -112,13 +112,13 @@ class ScoperExprVisitor(ScoperVisitor):
         rtype = self.visit_function_call(ftype, [self.visit(arg) for arg in node.args])
         actual = rtype
         node.is_await = False
-        # if isinstance(actual, Promise) and actual.kind != PromiseKind.GENERATOR:
-        #     node.is_await = True
-        #     actual = actual.return_type.resolve()
-        #
-        #     if self.scope.function and isinstance(actual, Promise) and actual.kind == PromiseKind.FORKED \
-        #             and isinstance(fty := self.scope.function.obj_type.return_type, Promise):
-        #         fty.kind = PromiseKind.JOIN
+        if isinstance(actual, PromiseInstanceType): # and actual.kind != PromiseKind.GENERATOR: TODO
+            node.is_await = True
+            actual = actual.value.resolve()
+
+            if self.scope.function and isinstance(actual, Promise) and actual.kind == PromiseKind.FORKED \
+                    and isinstance(fty := self.scope.function.obj_type.return_type, Promise):
+                fty.kind = PromiseKind.JOIN
 
         return actual
 
@@ -141,11 +141,17 @@ class ScoperExprVisitor(ScoperVisitor):
             if not a.try_assign(b):
                 raise TypeMismatchError(a, b, TypeMismatchKind.DIFFERENT_TYPE)
 
+            if not ftype.is_native:
+                pname = ftype.block_data.node.args.args[i].arg
+                ftype.block_data.scope.declare_local(pname, b)
+
         if not ftype.is_native:
             from transpiler.phases.typing.block import ScoperBlockVisitor
-            vis = ScoperBlockVisitor(ftype.block_data.scope)
+            scope = ftype.block_data.scope
+            vis = ScoperBlockVisitor(scope)
             for stmt in ftype.block_data.node.body:
                 vis.visit(stmt)
+        #ftype.generic_parent.cache_instance(ftype)
         return ftype.return_type.resolve()
         # if isinstance(ftype, TypeType):# and isinstance(ftype.type_object, UserType):
         #     init: FunctionType = self.visit_getattr(ftype, "__init__").remove_self()
@@ -311,7 +317,7 @@ class ScoperExprVisitor(ScoperVisitor):
         gen: ast.comprehension = node.generators[0]
         iter_type = self.get_iter(self.visit(gen.iter))
         node.input_item_type = self.get_next(iter_type)
-        virt_scope = self.scope.child(ScopeKind.FUNCTION_INNER)
+        virt_scope = self.scope.child(ScopeKind.FUNCTION)
         from transpiler.phases.typing.block import ScoperBlockVisitor
         visitor = ScoperBlockVisitor(virt_scope)
         visitor.visit_assign_target(gen.target, node.input_item_type)

typon/trans/transpiler/phases/typing/scope.py

@@ -54,6 +54,7 @@ class Scope:
     diverges: bool = False
     class_: Optional["Scope"] = None
     is_loop: Optional[ast.For | ast.While] = None
+    root_decls: Dict[str, ast.expr] = field(default_factory=dict)
 
     @staticmethod
     def make_global():

typon/trans/transpiler/phases/typing/stdlib.py

@@ -15,7 +15,7 @@ from transpiler.phases.typing.scope import Scope, VarDecl, VarKind, ScopeKind
 from transpiler.phases.typing.types import BaseType, BuiltinGenericType, BuiltinType, create_builtin_generic_type, \
     create_builtin_type, ConcreteType, GenericInstanceType, TypeListType, TypeTupleType, GenericParameter, \
     GenericParameterKind, TypeVariable, ResolvedConcreteType, MemberDef, ClassTypeType, CallableInstanceType, \
-    MethodType, UniqueTypeMixin, GenericType, BlockData
+    MethodType, UniqueTypeMixin, GenericType, BlockData, TY_TASK
 from transpiler.phases.utils import NodeVisitorSeq
 
 def visit_generic_item(
@@ -158,6 +158,8 @@ class StdlibVisitor(NodeVisitorSeq):
     def visit_FunctionDef(self, node: ast.FunctionDef):
         def visit_nongeneric(scope, output: CallableInstanceType):
             scope = scope.child(ScopeKind.FUNCTION)
+            scope.function = scope
+            scope.obj_type = output
             arg_visitor = TypeAnnotationVisitor(scope)
             output.block_data = BlockData(node, scope)
             output.parameters = [arg_visitor.visit(arg.annotation) for arg in node.args.args]
@@ -165,6 +167,8 @@ class StdlibVisitor(NodeVisitorSeq):
             output.optional_at = len(node.args.args) - len(node.args.defaults)
             output.is_variadic = args.vararg is not None
             output.is_native = self.is_native
+            if not self.is_native:
+                output.return_type = TY_TASK.instantiate([output.return_type])
 
         @dataclass(eq=False, init=False)
         class InstanceType(CallableInstanceType):

typon/trans/transpiler/phases/typing/types.py

@@ -147,6 +147,11 @@ class TypeVariable(ConcreteType):
     def contains_internal(self, other: BaseType) -> bool:
         return self.resolve() is other.resolve()
 
+    def deref(self):
+        if self.resolved is None:
+            return self
+        return self.resolved.deref()
+
 
 
 @dataclass(eq=False)
@@ -282,6 +287,13 @@ class GenericInstanceType(ResolvedConcreteType):
         # is this correct?
         return self == other or any(a.contains(other) for a in self.generic_args)
 
+class PromiseKind(enum.Enum):
+    TASK = 0
+    JOIN = 1
+    FUTURE = 2
+    FORKED = 3
+    GENERATOR = 4
+
 class GenericParameterKind(enum.Enum):
     NORMAL = enum.auto()
     TUPLE = enum.auto()
@@ -303,6 +315,7 @@ class GenericConstraint:
 @dataclass(eq=False, init=False)
 class GenericType(BaseType):
     parameters: list[GenericParameter]
+    instance_cache: dict[object, GenericInstanceType] = field(default_factory=dict, init=False)
 
     def constraints(self, args: list[ConcreteType]) -> list[GenericConstraint]:
         return []
@@ -329,6 +342,11 @@ class GenericType(BaseType):
     def deref(self):
         return self.instantiate_default().deref()
 
+    def cache_instance(self, instance):
+        if not hasattr(self, "instance_cache"):
+            self.instance_cache = {}
+        self.instance_cache[tuple(instance.generic_args)] = instance
+
 
 @dataclass(eq=False, init=False)
 class BuiltinGenericType(UniqueTypeMixin, GenericType):
@@ -388,23 +406,45 @@ TY_DICT = create_builtin_generic_type("dict")
 TY_TUPLE = create_builtin_generic_type("tuple")
 
 @dataclass(eq=False)
-class TaskInstanceType(GenericInstanceType):
+class PromiseInstanceType(GenericInstanceType):
     value: ConcreteType
 
     def deref(self):
+        match self.generic_parent.kind:
+            case PromiseKind.TASK | PromiseKind.JOIN:
                 return self.value.deref()
+            case _:
+                return self
+
+@dataclass(eq=False)
+class PromiseType(UniqueTypeMixin, GenericType):
+    kind: PromiseKind
 
-class TaskType(UniqueTypeMixin, GenericType):
     def name(self):
+        match self.kind:
+            case PromiseKind.TASK:
                 return "Task"
+            case PromiseKind.JOIN:
+                return "Join"
+            case PromiseKind.FUTURE:
+                return "Future"
+            case PromiseKind.FORKED:
+                return "Forked"
+            case PromiseKind.GENERATOR:
+                return "Generator"
 
     def _instantiate(self, args: list[ConcreteType]) -> GenericInstanceType:
         assert len(args) == 1
-        return TaskInstanceType(args[0])
+        return PromiseInstanceType(args[0])
+
 
 
+TY_TASK = PromiseType([GenericParameter("T")], PromiseKind.TASK)
+TY_JOIN = PromiseType([GenericParameter("T")], PromiseKind.JOIN)
+TY_FUTURE = PromiseType([GenericParameter("T")], PromiseKind.FUTURE)
+TY_FORKED = PromiseType([GenericParameter("T")], PromiseKind.FORKED)
+TY_GENERATOR = PromiseType([GenericParameter("T")], PromiseKind.GENERATOR)
 
-TY_TASK = TaskType()
 
 TY_TUPLE.instantiate_ = lambda args: TupleInstanceType(args)
 

typon/trans/transpiler/transpiler.py

@@ -63,12 +63,15 @@ def transpile(source, name: str, path: Path):
         yield f"co_await dot(PROGRAMNS::{module.name()}, main)();"
         yield "}"
         yield "int main(int argc, char* argv[]) {"
-        yield "py_sys::all.argv = typon::TyList<TyStr>(std::vector<TyStr>(argv, argv + argc));"
+        yield "py_sys::all.argv = typon::TyList__oo<>::Obj(std::vector<typon::TyStr__oo<>::Obj>(argv, argv + argc));"
         yield f"root().call();"
         yield "}"
         yield "#endif"
 
-    code = "\n".join(filter(None, main_module()))
+    code = main_module()
+    code = filter(None, code)
+    code = list(code)
+    code = "\n".join(code)
     return code