type_holder.hpp

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#pragma once
 
#include "ty/type.hpp"
#include <array>
#include <llvm/ADT/StringMap.h>
#include <memory>
#include <vector>
 
namespace yume {
class Compiler;
struct TypeHolder {
  struct IntTypePair {
    ty::Int* s_ty;
    ty::Int* u_ty;
  };
 
  array<IntTypePair, 4> int_types{};
  ty::Int* bool_type{};
  IntTypePair size_type{};
  ty::Nil* nil_type{};
  llvm::StringMap<unique_ptr<ty::BaseType>> known{};
  std::vector<unique_ptr<ty::Function>> fn_types{};
 
  TypeHolder();
 
  void declare_size_type(Compiler&);
 
  constexpr auto int8() -> IntTypePair { return int_types[0]; }
  constexpr auto int16() -> IntTypePair { return int_types[1]; }
  constexpr auto int32() -> IntTypePair { return int_types[2]; }
  constexpr auto int64() -> IntTypePair { return int_types[3]; }
 
  auto find_or_create_fn_type(const vector<ty::Type>& args, optional<ty::Type> ret, const vector<ty::Type>& closure)
      -> ty::Function*;
  auto find_or_create_fn_ptr_type(const vector<ty::Type>& args, optional<ty::Type> ret, bool c_varargs = false)
      -> ty::Function*;
};
} // namespace yume