source-engine/devtools/swigwin-1.3.34/Lib/python/pycontainer.swg
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/* -----------------------------------------------------------------------------
* See the LICENSE file for information on copyright, usage and redistribution
* of SWIG, and the README file for authors - http://www.swig.org/release.html.
*
* pycontainer.swg
*
* Python sequence <-> C++ container wrapper
*
* This wrapper, and its iterator, allows a general use (and reuse) of
* the the mapping between C++ and Python, thanks to the C++
* templates.
*
* Of course, it needs the C++ compiler to support templates, but
* since we will use this wrapper with the STL containers, that should
* be the case.
* ----------------------------------------------------------------------------- */
%{
#include <iostream>
%}
#if !defined(SWIG_NO_EXPORT_ITERATOR_METHODS)
# if !defined(SWIG_EXPORT_ITERATOR_METHODS)
# define SWIG_EXPORT_ITERATOR_METHODS SWIG_EXPORT_ITERATOR_METHODS
# endif
#endif
%include <pyiterators.swg>
/**** The PySequence C++ Wrap ***/
%insert(header) %{
#include <stdexcept>
%}
%include <std_except.i>
%fragment(SWIG_Traits_frag(swig::PyObject_ptr),"header",fragment="StdTraits") {
namespace swig {
template <> struct traits<PyObject_ptr > {
typedef value_category category;
static const char* type_name() { return "PyObject_ptr"; }
};
template <> struct traits_from<PyObject_ptr> {
typedef PyObject_ptr value_type;
static PyObject *from(const value_type& val) {
PyObject *obj = static_cast<PyObject *>(val);
Py_XINCREF(obj);
return obj;
}
};
template <>
struct traits_check<PyObject_ptr, value_category> {
static bool check(PyObject_ptr) {
return true;
}
};
template <> struct traits_asval<PyObject_ptr > {
typedef PyObject_ptr value_type;
static int asval(PyObject *obj, value_type *val) {
if (val) *val = obj;
return SWIG_OK;
}
};
}
}
%fragment(SWIG_Traits_frag(swig::PyObject_var),"header",fragment="StdTraits") {
namespace swig {
template <> struct traits<PyObject_var > {
typedef value_category category;
static const char* type_name() { return "PyObject_var"; }
};
template <> struct traits_from<PyObject_var> {
typedef PyObject_var value_type;
static PyObject *from(const value_type& val) {
PyObject *obj = static_cast<PyObject *>(val);
Py_XINCREF(obj);
return obj;
}
};
template <>
struct traits_check<PyObject_var, value_category> {
static bool check(PyObject_var) {
return true;
}
};
template <> struct traits_asval<PyObject_var > {
typedef PyObject_var value_type;
static int asval(PyObject *obj, value_type *val) {
if (val) *val = obj;
return SWIG_OK;
}
};
}
}
%fragment("PySequence_Base","header")
{
%#include <functional>
namespace std {
template <>
struct less <PyObject *>: public binary_function<PyObject *, PyObject *, bool>
{
bool
operator()(PyObject * v, PyObject *w) const
{
bool res;
SWIG_PYTHON_THREAD_BEGIN_BLOCK;
res = PyObject_Compare(v, w) < 0;
SWIG_PYTHON_THREAD_END_BLOCK;
return res;
}
};
template <>
struct less <swig::PyObject_ptr>: public binary_function<swig::PyObject_ptr, swig::PyObject_ptr, bool>
{
bool
operator()(const swig::PyObject_ptr& v, const swig::PyObject_ptr& w) const
{
return std::less<PyObject *>()(v, w);
}
};
template <>
struct less <swig::PyObject_var>: public binary_function<swig::PyObject_var, swig::PyObject_var, bool>
{
bool
operator()(const swig::PyObject_var& v, const swig::PyObject_var& w) const
{
return std::less<PyObject *>()(v, w);
}
};
}
namespace swig {
template <> struct traits<PyObject *> {
typedef value_category category;
static const char* type_name() { return "PyObject *"; }
};
template <> struct traits_asval<PyObject * > {
typedef PyObject * value_type;
static int asval(PyObject *obj, value_type *val) {
if (val) *val = obj;
return SWIG_OK;
}
};
template <>
struct traits_check<PyObject *, value_category> {
static bool check(PyObject *) {
return true;
}
};
template <> struct traits_from<PyObject *> {
typedef PyObject * value_type;
static PyObject *from(const value_type& val) {
Py_XINCREF(val);
return val;
}
};
}
namespace swig {
inline size_t
check_index(ptrdiff_t i, size_t size, bool insert = false) {
if ( i < 0 ) {
if ((size_t) (-i) <= size)
return (size_t) (i + size);
} else if ( (size_t) i < size ) {
return (size_t) i;
} else if (insert && ((size_t) i == size)) {
return size;
}
throw std::out_of_range("index out of range");
}
inline size_t
slice_index(ptrdiff_t i, size_t size) {
if ( i < 0 ) {
if ((size_t) (-i) <= size) {
return (size_t) (i + size);
} else {
throw std::out_of_range("index out of range");
}
} else {
return ( (size_t) i < size ) ? ((size_t) i) : size;
}
}
template <class Sequence, class Difference>
inline typename Sequence::iterator
getpos(Sequence* self, Difference i) {
typename Sequence::iterator pos = self->begin();
std::advance(pos, check_index(i,self->size()));
return pos;
}
template <class Sequence, class Difference>
inline typename Sequence::const_iterator
cgetpos(const Sequence* self, Difference i) {
typename Sequence::const_iterator pos = self->begin();
std::advance(pos, check_index(i,self->size()));
return pos;
}
template <class Sequence, class Difference>
inline Sequence*
getslice(const Sequence* self, Difference i, Difference j) {
typename Sequence::size_type size = self->size();
typename Sequence::size_type ii = swig::check_index(i, size);
typename Sequence::size_type jj = swig::slice_index(j, size);
if (jj > ii) {
typename Sequence::const_iterator vb = self->begin();
typename Sequence::const_iterator ve = self->begin();
std::advance(vb,ii);
std::advance(ve,jj);
return new Sequence(vb, ve);
} else {
return new Sequence();
}
}
template <class Sequence, class Difference, class InputSeq>
inline void
setslice(Sequence* self, Difference i, Difference j, const InputSeq& v) {
typename Sequence::size_type size = self->size();
typename Sequence::size_type ii = swig::check_index(i, size, true);
typename Sequence::size_type jj = swig::slice_index(j, size);
if (jj < ii) jj = ii;
size_t ssize = jj - ii;
if (ssize <= v.size()) {
typename Sequence::iterator sb = self->begin();
typename InputSeq::const_iterator vmid = v.begin();
std::advance(sb,ii);
std::advance(vmid, jj - ii);
self->insert(std::copy(v.begin(), vmid, sb), vmid, v.end());
} else {
typename Sequence::iterator sb = self->begin();
typename Sequence::iterator se = self->begin();
std::advance(sb,ii);
std::advance(se,jj);
self->erase(sb,se);
self->insert(sb, v.begin(), v.end());
}
}
template <class Sequence, class Difference>
inline void
delslice(Sequence* self, Difference i, Difference j) {
typename Sequence::size_type size = self->size();
typename Sequence::size_type ii = swig::check_index(i, size, true);
typename Sequence::size_type jj = swig::slice_index(j, size);
if (jj > ii) {
typename Sequence::iterator sb = self->begin();
typename Sequence::iterator se = self->begin();
std::advance(sb,ii);
std::advance(se,jj);
self->erase(sb,se);
}
}
}
}
%fragment("PySequence_Cont","header",
fragment="StdTraits",
fragment="PySequence_Base",
fragment="PySwigIterator_T")
{
namespace swig
{
template <class T>
struct PySequence_Ref
{
PySequence_Ref(PyObject* seq, int index)
: _seq(seq), _index(index)
{
}
operator T () const
{
swig::PyObject_var item = PySequence_GetItem(_seq, _index);
try {
return swig::as<T>(item, true);
} catch (std::exception& e) {
char msg[1024];
sprintf(msg, "in sequence element %d ", _index);
if (!PyErr_Occurred()) {
%type_error(swig::type_name<T>());
}
SWIG_Python_AddErrorMsg(msg);
SWIG_Python_AddErrorMsg(e.what());
throw;
}
}
PySequence_Ref& operator=(const T& v)
{
PySequence_SetItem(_seq, _index, swig::from<T>(v));
return *this;
}
private:
PyObject* _seq;
int _index;
};
template <class T>
struct PySequence_ArrowProxy
{
PySequence_ArrowProxy(const T& x): m_value(x) {}
const T* operator->() const { return &m_value; }
operator const T*() const { return &m_value; }
T m_value;
};
template <class T, class Reference >
struct PySequence_InputIterator
{
typedef PySequence_InputIterator<T, Reference > self;
typedef std::random_access_iterator_tag iterator_category;
typedef Reference reference;
typedef T value_type;
typedef T* pointer;
typedef int difference_type;
PySequence_InputIterator()
{
}
PySequence_InputIterator(PyObject* seq, int index)
: _seq(seq), _index(index)
{
}
reference operator*() const
{
return reference(_seq, _index);
}
PySequence_ArrowProxy<T>
operator->() const {
return PySequence_ArrowProxy<T>(operator*());
}
bool operator==(const self& ri) const
{
return (_index == ri._index) && (_seq == ri._seq);
}
bool operator!=(const self& ri) const
{
return !(operator==(ri));
}
self& operator ++ ()
{
++_index;
return *this;
}
self& operator -- ()
{
--_index;
return *this;
}
self& operator += (difference_type n)
{
_index += n;
return *this;
}
self operator +(difference_type n) const
{
return self(_seq, _index + n);
}
self& operator -= (difference_type n)
{
_index -= n;
return *this;
}
self operator -(difference_type n) const
{
return self(_seq, _index - n);
}
difference_type operator - (const self& ri) const
{
return _index - ri._index;
}
bool operator < (const self& ri) const
{
return _index < ri._index;
}
reference
operator[](difference_type n) const
{
return reference(_seq, _index + n);
}
private:
PyObject* _seq;
difference_type _index;
};
template <class T>
struct PySequence_Cont
{
typedef PySequence_Ref<T> reference;
typedef const PySequence_Ref<T> const_reference;
typedef T value_type;
typedef T* pointer;
typedef int difference_type;
typedef int size_type;
typedef const pointer const_pointer;
typedef PySequence_InputIterator<T, reference> iterator;
typedef PySequence_InputIterator<T, const_reference> const_iterator;
PySequence_Cont(PyObject* seq) : _seq(0)
{
if (!PySequence_Check(seq)) {
throw std::invalid_argument("a sequence is expected");
}
_seq = seq;
Py_INCREF(_seq);
}
~PySequence_Cont()
{
if (_seq) Py_DECREF(_seq);
}
size_type size() const
{
return static_cast<size_type>(PySequence_Size(_seq));
}
bool empty() const
{
return size() == 0;
}
iterator begin()
{
return iterator(_seq, 0);
}
const_iterator begin() const
{
return const_iterator(_seq, 0);
}
iterator end()
{
return iterator(_seq, size());
}
const_iterator end() const
{
return const_iterator(_seq, size());
}
reference operator[](difference_type n)
{
return reference(_seq, n);
}
const_reference operator[](difference_type n) const
{
return const_reference(_seq, n);
}
bool check(bool set_err = true) const
{
int s = size();
for (int i = 0; i < s; ++i) {
swig::PyObject_var item = PySequence_GetItem(_seq, i);
if (!swig::check<value_type>(item)) {
if (set_err) {
char msg[1024];
sprintf(msg, "in sequence element %d", i);
SWIG_Error(SWIG_RuntimeError, msg);
}
return false;
}
}
return true;
}
private:
PyObject* _seq;
};
}
}
%define %swig_sequence_iterator(Sequence...)
#if defined(SWIG_EXPORT_ITERATOR_METHODS)
class iterator;
class reverse_iterator;
class const_iterator;
class const_reverse_iterator;
%typemap(out,noblock=1,fragment="PySequence_Cont")
iterator, reverse_iterator, const_iterator, const_reverse_iterator {
$result = SWIG_NewPointerObj(swig::make_output_iterator(%static_cast($1,const $type &)),
swig::PySwigIterator::descriptor(),SWIG_POINTER_OWN);
}
%typemap(out,noblock=1,fragment="PySequence_Cont")
std::pair<iterator, iterator>, std::pair<const_iterator, const_iterator> {
$result = PyTuple_New(2);
PyTuple_SetItem($result,0,SWIG_NewPointerObj(swig::make_output_iterator(%static_cast($1,const $type &).first),
swig::PySwigIterator::descriptor(),SWIG_POINTER_OWN));
PyTuple_SetItem($result,1,SWIG_NewPointerObj(swig::make_output_iterator(%static_cast($1,const $type &).second),
swig::PySwigIterator::descriptor(),SWIG_POINTER_OWN));
}
%fragment("PyPairBoolOutputIterator","header",fragment=SWIG_From_frag(bool),fragment="PySequence_Cont") {}
%typemap(out,noblock=1,fragment="PyPairBoolOutputIterator")
std::pair<iterator, bool>, std::pair<const_iterator, bool> {
$result = PyTuple_New(2);
PyTuple_SetItem($result,0,SWIG_NewPointerObj(swig::make_output_iterator(%static_cast($1,const $type &).first),
swig::PySwigIterator::descriptor(),SWIG_POINTER_OWN));
PyTuple_SetItem($result,1,SWIG_From(bool)(%static_cast($1,const $type &).second));
}
%typemap(in,noblock=1,fragment="PySequence_Cont")
iterator(swig::PySwigIterator *iter = 0, int res),
reverse_iterator(swig::PySwigIterator *iter = 0, int res),
const_iterator(swig::PySwigIterator *iter = 0, int res),
const_reverse_iterator(swig::PySwigIterator *iter = 0, int res) {
res = SWIG_ConvertPtr($input, %as_voidptrptr(&iter), swig::PySwigIterator::descriptor(), 0);
if (!SWIG_IsOK(res) || !iter) {
%argument_fail(SWIG_TypeError, "$type", $symname, $argnum);
} else {
swig::PySwigIterator_T<$type > *iter_t = dynamic_cast<swig::PySwigIterator_T<$type > *>(iter);
if (iter_t) {
$1 = iter_t->get_current();
} else {
%argument_fail(SWIG_TypeError, "$type", $symname, $argnum);
}
}
}
%typecheck(%checkcode(ITERATOR),noblock=1,fragment="PySequence_Cont")
iterator, reverse_iterator, const_iterator, const_reverse_iterator {
swig::PySwigIterator *iter = 0;
int res = SWIG_ConvertPtr($input, %as_voidptrptr(&iter), swig::PySwigIterator::descriptor(), 0);
$1 = (SWIG_IsOK(res) && iter && (dynamic_cast<swig::PySwigIterator_T<$type > *>(iter) != 0));
}
%fragment("PySequence_Cont");
%newobject iterator(PyObject **PYTHON_SELF);
%extend {
swig::PySwigIterator* iterator(PyObject **PYTHON_SELF) {
return swig::make_output_iterator(self->begin(), self->begin(), self->end(), *PYTHON_SELF);
}
%pythoncode {def __iter__(self): return self.iterator()}
}
#endif //SWIG_EXPORT_ITERATOR_METHODS
%enddef
/**** The python container methods ****/
%define %swig_container_methods(Container...)
%newobject __getslice__;
%extend {
bool __nonzero__() const {
return !(self->empty());
}
size_type __len__() const {
return self->size();
}
}
%enddef
%define %swig_sequence_methods_common(Sequence...)
%swig_sequence_iterator(%arg(Sequence))
%swig_container_methods(%arg(Sequence))
%fragment("PySequence_Base");
%extend {
value_type pop() throw (std::out_of_range) {
if (self->size() == 0)
throw std::out_of_range("pop from empty container");
Sequence::value_type x = self->back();
self->pop_back();
return x;
}
Sequence* __getslice__(difference_type i, difference_type j) throw (std::out_of_range) {
return swig::getslice(self, i, j);
}
void __setslice__(difference_type i, difference_type j, const Sequence& v)
throw (std::out_of_range, std::invalid_argument) {
swig::setslice(self, i, j, v);
}
void __delslice__(difference_type i, difference_type j) throw (std::out_of_range) {
swig::delslice(self, i, j);
}
void __delitem__(difference_type i) throw (std::out_of_range) {
self->erase(swig::getpos(self,i));
}
}
%enddef
%define %swig_sequence_methods(Sequence...)
%swig_sequence_methods_common(%arg(Sequence))
%extend {
const value_type& __getitem__(difference_type i) const throw (std::out_of_range) {
return *(swig::cgetpos(self, i));
}
void __setitem__(difference_type i, const value_type& x) throw (std::out_of_range) {
*(swig::getpos(self,i)) = x;
}
void append(const value_type& x) {
self->push_back(x);
}
}
%enddef
%define %swig_sequence_methods_val(Sequence...)
%swig_sequence_methods_common(%arg(Sequence))
%extend {
value_type __getitem__(difference_type i) throw (std::out_of_range) {
return *(swig::cgetpos(self, i));
}
void __setitem__(difference_type i, value_type x) throw (std::out_of_range) {
*(swig::getpos(self,i)) = x;
}
void append(value_type x) {
self->push_back(x);
}
}
%enddef
//
// Common fragments
//
%fragment("StdSequenceTraits","header",
fragment="StdTraits",
fragment="PySequence_Cont")
{
namespace swig {
template <class PySeq, class Seq>
inline void
assign(const PySeq& pyseq, Seq* seq) {
%#ifdef SWIG_STD_NOASSIGN_STL
typedef typename PySeq::value_type value_type;
typename PySeq::const_iterator it = pyseq.begin();
for (;it != pyseq.end(); ++it) {
seq->insert(seq->end(),(value_type)(*it));
}
%#else
seq->assign(pyseq.begin(), pyseq.end());
%#endif
}
template <class Seq, class T = typename Seq::value_type >
struct traits_asptr_stdseq {
typedef Seq sequence;
typedef T value_type;
static int asptr(PyObject *obj, sequence **seq) {
if (obj == Py_None || SWIG_Python_GetSwigThis(obj)) {
sequence *p;
if (SWIG_ConvertPtr(obj,(void**)&p,
swig::type_info<sequence>(),0) == SWIG_OK) {
if (seq) *seq = p;
return SWIG_OLDOBJ;
}
} else if (PySequence_Check(obj)) {
try {
PySequence_Cont<value_type> pyseq(obj);
if (seq) {
sequence *pseq = new sequence();
assign(pyseq, pseq);
*seq = pseq;
return SWIG_NEWOBJ;
} else {
return pyseq.check() ? SWIG_OK : SWIG_ERROR;
}
} catch (std::exception& e) {
if (seq) {
if (!PyErr_Occurred()) {
PyErr_SetString(PyExc_TypeError, e.what());
}
}
return SWIG_ERROR;
}
}
return SWIG_ERROR;
}
};
template <class Seq, class T = typename Seq::value_type >
struct traits_from_stdseq {
typedef Seq sequence;
typedef T value_type;
typedef typename Seq::size_type size_type;
typedef typename sequence::const_iterator const_iterator;
static PyObject *from(const sequence& seq) {
#ifdef SWIG_PYTHON_EXTRA_NATIVE_CONTAINERS
swig_type_info *desc = swig::type_info<sequence>();
if (desc && desc->clientdata) {
return SWIG_NewPointerObj(new sequence(seq), desc, SWIG_POINTER_OWN);
}
#endif
size_type size = seq.size();
if (size <= (size_type)INT_MAX) {
PyObject *obj = PyTuple_New((int)size);
int i = 0;
for (const_iterator it = seq.begin();
it != seq.end(); ++it, ++i) {
PyTuple_SetItem(obj,i,swig::from<value_type>(*it));
}
return obj;
} else {
PyErr_SetString(PyExc_OverflowError,"sequence size not valid in python");
return NULL;
}
}
};
}
}