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/********************************************
copyright 1999 McMillan Enterprises, Inc.
www.mcmillan-inc.com
modified for weave by eric jones
*********************************************/
#if !defined(DICT_H_INCLUDED_)
#define DICT_H_INCLUDED_
#include <string>
#include "object.h"
#include "list.h"
namespace py {
class dict : public object
{
public:
//-------------------------------------------------------------------------
// constructors
//-------------------------------------------------------------------------
dict() : object (PyDict_New()) { lose_ref(_obj); }
dict(const dict& other) : object(other) {};
dict(PyObject* obj) : object(obj) {
_violentTypeCheck();
};
//-------------------------------------------------------------------------
// destructor
//-------------------------------------------------------------------------
virtual ~dict() {};
//-------------------------------------------------------------------------
// operator=
//-------------------------------------------------------------------------
virtual dict& operator=(const dict& other) {
grab_ref(other);
return *this;
};
dict& operator=(const object& other) {
grab_ref(other);
_violentTypeCheck();
return *this;
};
//-------------------------------------------------------------------------
// type checking
//-------------------------------------------------------------------------
virtual void _violentTypeCheck() {
if (!PyDict_Check(_obj)) {
grab_ref(0);
fail(PyExc_TypeError, "Not a dictionary");
}
};
//-------------------------------------------------------------------------
// get -- object, numeric, and string versions
//-------------------------------------------------------------------------
object get (object& key) {
object rslt = PyDict_GetItem(_obj, key);
return rslt;
};
object get (int key) {
object _key = object(key);
return get(_key);
};
object get (double key) {
object _key = object(key);
return get(_key);
};
object get (const std::complex<double>& key) {
object _key = object(key);
return get(_key);
};
object get (const char* key) {
object rslt = PyDict_GetItemString(_obj, (char*) key);
return rslt;
};
object get (const std::string& key) {
return get(key.c_str());
};
object get (char key) {
return get(&key);
};
//-------------------------------------------------------------------------
// operator[] -- object and numeric versions
//-------------------------------------------------------------------------
keyed_ref operator [] (object& key) {
object rslt = PyDict_GetItem(_obj, key);
if (!(PyObject*)rslt)
PyErr_Clear(); // Ignore key errors
return keyed_ref(rslt, *this, key);
};
keyed_ref operator [] (int key) {
object _key = object(key);
return operator [](_key);
};
keyed_ref operator [] (double key) {
object _key = object(key);
return operator [](_key);
};
keyed_ref operator [] (const std::complex<double>& key) {
object _key = object(key);
return operator [](_key);
};
//-------------------------------------------------------------------------
// operator[] non-const -- string versions
//-------------------------------------------------------------------------
keyed_ref operator [] (const char* key) {
object rslt = PyDict_GetItemString(_obj, (char*) key);
if (!(PyObject*)rslt)
PyErr_Clear(); // Ignore key errors
object _key = key;
return keyed_ref(rslt, *this, _key);
};
keyed_ref operator [] (const std::string& key) {
return operator [](key.c_str());
};
keyed_ref operator [] (char key) {
return operator [](&key);
};
//-------------------------------------------------------------------------
// has_key -- object and numeric versions
//-------------------------------------------------------------------------
bool has_key(object& key) const {
return PyMapping_HasKey(_obj, key)==1;
};
bool has_key(int key) const {
object _key = key;
return has_key(_key);
};
bool has_key(double key) const {
object _key = key;
return has_key(_key);
};
bool has_key(const std::complex<double>& key) const {
object _key = key;
return has_key(_key);
};
//-------------------------------------------------------------------------
// has_key -- string versions
//-------------------------------------------------------------------------
bool has_key(const char* key) const {
return PyMapping_HasKeyString(_obj, (char*) key)==1;
};
bool has_key(const std::string& key) const {
return has_key(key.c_str());
};
bool has_key(char key) const {
return has_key(&key);
};
//-------------------------------------------------------------------------
// len and length methods
//-------------------------------------------------------------------------
int len() const {
return PyDict_Size(_obj);
}
int length() const {
return PyDict_Size(_obj);
};
//-------------------------------------------------------------------------
// set_item
//-------------------------------------------------------------------------
virtual void set_item(const char* key, object& val) {
int rslt = PyDict_SetItemString(_obj, (char*) key, val);
if (rslt==-1)
fail(PyExc_RuntimeError, "Cannot add key / value");
};
virtual void set_item(object& key, object& val) const {
int rslt = PyDict_SetItem(_obj, key, val);
if (rslt==-1)
fail(PyExc_KeyError, "Key must be hashable");
};
//-------------------------------------------------------------------------
// clear
//-------------------------------------------------------------------------
void clear() {
PyDict_Clear(_obj);
};
//-------------------------------------------------------------------------
// update
//-------------------------------------------------------------------------
#if PY_VERSION_HEX >= 0x02020000
void update(dict& other) {
PyDict_Merge(_obj,other,1);
};
#endif
//-------------------------------------------------------------------------
// del -- remove key from dictionary
// overloaded to take all common weave types
//-------------------------------------------------------------------------
void del(object& key) {
int rslt = PyDict_DelItem(_obj, key);
if (rslt==-1)
fail(PyExc_KeyError, "Key not found");
};
void del(int key) {
object _key = key;
del(_key);
};
void del(double key) {
object _key = key;
del(_key);
};
void del(const std::complex<double>& key) {
object _key = key;
del(_key);
};
void del(const char* key) {
int rslt = PyDict_DelItemString(_obj, (char*) key);
if (rslt==-1)
fail(PyExc_KeyError, "Key not found");
};
void del(const std::string key) {
del(key.c_str());
};
//-------------------------------------------------------------------------
// items, keys, and values
//-------------------------------------------------------------------------
list items() const {
PyObject* rslt = PyDict_Items(_obj);
if (rslt==0)
fail(PyExc_RuntimeError, "failed to get items");
return lose_ref(rslt);
};
list keys() const {
PyObject* rslt = PyDict_Keys(_obj);
if (rslt==0)
fail(PyExc_RuntimeError, "failed to get keys");
return lose_ref(rslt);
};
list values() const {
PyObject* rslt = PyDict_Values(_obj);
if (rslt==0)
fail(PyExc_RuntimeError, "failed to get values");
return lose_ref(rslt);
};
};
} // namespace
#endif // DICT_H_INCLUDED_
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