builtin.hpp.old

#ifndef SS_BUILTIN_HPP
#define SS_BUILTIN_HPP

#include <string.h>
#include <cassert>
#include <vector>
#include <map>
#include <optional>
#include <functional>
#include <memory>
#include <random>

#ifndef NULL 
#define NULL 0
#endif

typedef int __ss_int;
typedef double __ss_float;
typedef bool __ss_bool;
typedef std::vector<__ss_int> __ss_list;
typedef std::string __ss_str;

// ESBMC verification support
extern "C" {
    __ss_int __ESBMC_nondet_int();
    void __ESBMC_assume(__ss_bool assumption);
    void __ESBMC_assert(__ss_bool assertion, const char* message);
}

// Assert macro
#define ASSERT(x, msg) if(!(x)) { __ESBMC_assert(x, msg); }

namespace shedskin {

// Forward declarations
class str;
class class_;
template<typename T> class List;
template<typename K, typename V> class Dict;

// Base class for all Python objects
class pyobj {
public:
    class_ *__class__;
    virtual ~pyobj() {}
    virtual bool equals(const pyobj* other) const { return this == other; }
    virtual str* __str__() const;
    virtual size_t __hash__() const;
};

// String class
class str : public pyobj {
    std::string data;
public:
    str(const char* s) : data(s) {}
    str(const std::string& s) : data(s) {}
    const char* c_str() const { return data.c_str(); }
    
    virtual bool equals(const pyobj* other) const override {
        if (const str* other_str = dynamic_cast<const str*>(other)) {
            return data == other_str->data;
        }
        return false;
    }
    
    virtual size_t __hash__() const override {
        return std::hash<std::string>{}(data);
    }
};

// Class metadata
class class_ {
public:
    str *__name__;
    class_ *__base__;
    
    class_(const char* name, class_* base = nullptr) : __base__(base) {
        __name__ = new str(name);
    }
    
    virtual bool isinstance(const pyobj* obj) const {
        if (!obj) return false;
        class_* cls = obj->__class__;
        while (cls) {
            if (cls == this) return true;
            cls = cls->__base__;
        }
        return false;
    }
};

// List template
template<typename T>
class List : public pyobj {
    std::vector<T> items;
public:
    List() {}
    void append(const T& item) { items.push_back(item); }
    size_t size() const { return items.size(); }
    T& operator[](size_t i) { return items[i]; }
    const T& operator[](size_t i) const { return items[i]; }
    
    typename std::vector<T>::iterator begin() { return items.begin(); }
    typename std::vector<T>::iterator end() { return items.end(); }
};

// Dictionary template
template<typename K, typename V>
class Dict : public pyobj {
    std::map<K, V> items;
public:
    Dict() {}
    V& operator[](const K& key) { return items[key]; }
    bool contains(const K& key) const { return items.find(key) != items.end(); }
};

// Optional type support
template<typename T>
using Optional = std::optional<T>;

// Random number generation support
namespace random {
    inline __ss_int randrange(__ss_int start, __ss_int stop) {
        static std::random_device rd;
        static std::mt19937 gen(rd());
        std::uniform_int_distribution<__ss_int> dist(start, stop - 1);
        return dist(gen);
    }
    
    template<typename T>
    T choice(const List<T>& seq) {
        if (seq.size() == 0) throw std::runtime_error("Cannot choose from empty sequence");
        return seq[randrange(0, seq.size())];
    }
}

// Comparison functions
inline __ss_bool __eq(pyobj* a, pyobj* b) {
    if (a == b) return true;
    if (!a || !b) return false;
    return a->equals(b);
}

inline __ss_bool ___bool(__ss_bool b) {
    return b;
}

} // namespace shedskin

// Global initialization
extern "C" {
    void __init();
    void __start(void (*initfunc)()) {
        initfunc();
    }
}

#endif // SS_BUILTIN_HPP