84 lines
2.0 KiB
C++
84 lines
2.0 KiB
C++
|
|
||
|
|
#define YAP_CPP_INTERFACE 1
|
||
|
|
|
||
|
|
#include "yapi.hh"
|
||
|
|
#include "SWI-Stream.h"
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
YAPPredicate::YAPPredicate(const char *s, Term &tout, yhandle_t &vnames) throw (int) {
|
||
|
|
CACHE_REGS
|
||
|
|
BACKUP_MACHINE_REGS();
|
||
|
|
yhandle_t yvnames = Yap_InitSlot();
|
||
|
|
Term tout = Yap_StringToTerm(s, strlen(s), Yap_DefaultEncoding(), yvnames, 1200);
|
||
|
|
if (tout == 0L)
|
||
|
|
throw YAPError::YAP_SYNTAX_ERROR;
|
||
|
|
ap = getPred( tout );
|
||
|
|
RECOVER_MACHINE_REGS();
|
||
|
|
}
|
||
|
|
|
||
|
|
YAPPredicate::YAPPredicate(YAPAtom at) {
|
||
|
|
CACHE_REGS
|
||
|
|
ap = RepPredProp(PredPropByAtom(at.a,CurrentModule));
|
||
|
|
}
|
||
|
|
|
||
|
|
YAPPredicate::YAPPredicate(YAPAtom at, arity_t arity) {
|
||
|
|
CACHE_REGS
|
||
|
|
if (arity) {
|
||
|
|
Functor f = Yap_MkFunctor(at.a, arity);
|
||
|
|
ap = RepPredProp(PredPropByFunc(f,CurrentModule));
|
||
|
|
} else {LogUpdate
|
||
|
|
ap = RepPredProp(PredPropByAtom(at.a,CurrentModule));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/// auxiliary routine to find a predicate in the current module.
|
||
|
|
PredEntry *YAPPredicate::getPred( Term t, Term* &outp ) {
|
||
|
|
CACHE_REGS
|
||
|
|
Term m = CurrentModule ;
|
||
|
|
t = Yap_StripModule(t, &m);
|
||
|
|
if (IsVarTerm(t) || IsNumTerm(t)) {
|
||
|
|
ap = (PredEntry *)NULL;
|
||
|
|
outp = (Term *)NULL;
|
||
|
|
}
|
||
|
|
if (IsAtomTerm(t)) {
|
||
|
|
ap = RepPredProp(PredPropByAtom(AtomOfTerm(t), m));
|
||
|
|
if (outp) outp = (Term *)NULL;
|
||
|
|
} else if (IsPairTerm(t)) {
|
||
|
|
ap = RepPredProp(PredPropByFunc(FunctorCsult, PROLOG_MODULE));
|
||
|
|
outp = HR;
|
||
|
|
HR[0] = RepPair(t)[0];
|
||
|
|
HR[1] = m;
|
||
|
|
HR+=2;
|
||
|
|
} else {
|
||
|
|
Functor f = FunctorOfTerm(t);
|
||
|
|
if (IsExtensionFunctor(f)) {
|
||
|
|
ap = (PredEntry *)NULL;
|
||
|
|
outp = (Term *)NULL;
|
||
|
|
} else {
|
||
|
|
ap = RepPredProp(PredPropByFunc(f, m));
|
||
|
|
outp = RepAppl(t)+1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
{ REGS_LOG( "done H= %p, outp=%p", HR, outp) ; }
|
||
|
|
return ap;
|
||
|
|
}
|
||
|
|
|
||
|
|
YAPPredicate::YAPPredicate(YAPFunctor f) {
|
||
|
|
CACHE_REGS
|
||
|
|
ap = RepPredProp(PredPropByFunc(f.f,CurrentModule));
|
||
|
|
}
|
||
|
|
|
||
|
|
int YAPPredicate::call(YAPTerm t[])
|
||
|
|
{
|
||
|
|
YAPQuery q = YAPQuery(*this, t);
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
BACKUP_MACHINE_REGS();
|
||
|
|
ret = q.next();
|
||
|
|
q.cut();
|
||
|
|
q.close();
|
||
|
|
RECOVER_MACHINE_REGS();
|
||
|
|
return ret;
|
||
|
|
}
|