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/***************************************************************/
/*** Generic support code for Python-specific code generation ***/
/***************************************************************/
#ifndef _PYCODEGEN_H
#define _PYCODEGEN_H
#include "vcompiler.h"
#include <ipyencoding.h>
/* emit Py_INCREF(v) */
PSY_INLINE bool psyco_incref_v(PsycoObject* po, vinfo_t* v)
{
if (!compute_vinfo(v, po)) return false;
psyco_incref_nv(po, v);
return true;
}
/* emit Py_DECREF(v) */
PSY_INLINE void psyco_decref_v(PsycoObject* po, vinfo_t* v)
{
switch (gettime(v->source)) {
case RunTime:
psyco_decref_rt(po, v);
break;
case CompileTime:
psyco_decref_c(po, (PyObject*) CompileTime_Get(v->source)->value);
break;
}
}
/* can eat a reference if we had one in the first place, and
if no one else will require it (i.e. there is only one reference
left to 'vi') */
PSY_INLINE bool eat_reference(vinfo_t* vi)
{
if (has_rtref(vi->source) && vi->refcount == 1)
{
vi->source = remove_rtref(vi->source);
return true;
}
else
return false;
}
/* force a reference to be consumed */
PSY_INLINE void consume_reference(PsycoObject* po, vinfo_t* vi)
{
if (!eat_reference(vi))
psyco_incref_v(po, vi);
}
/* make sure we have a reference on 'vi' */
PSY_INLINE void need_reference(PsycoObject* po, vinfo_t* vi)
{
if ((vi->source & (TimeMask | RunTime_NoRef)) == (RunTime | RunTime_NoRef))
{
vi->source = add_rtref(vi->source);
psyco_incref_rt(po, vi);
}
}
#endif /* _PYCODEGEN_H */
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