new C++ interface

This commit is contained in:
Vítor Santos Costa 2014-04-28 11:47:09 +01:00
parent ed0910fe94
commit 2f852223ec
3 changed files with 668 additions and 2 deletions

402
CXX/yapi.cpp Normal file
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@ -0,0 +1,402 @@
#define YAP_CPP_INTERFACE 1
#include "yapi.hh"
YAPAtomTerm::YAPAtomTerm(char *s) { // build string
BACKUP_H();
CACHE_REGS
seq_tv_t inp, out;
inp.val.c = s;
inp.type = YAP_STRING_CHARS;
out.type = YAP_STRING_ATOM;
if (Yap_CVT_Text(&inp, &out PASS_REGS))
t = MkAtomTerm(out.val.a);
else t = 0L;
RECOVER_H();
}
YAPAtomTerm::YAPAtomTerm(char *s, size_t len) { // build string
BACKUP_H();
CACHE_REGS
seq_tv_t inp, out;
inp.val.c = s;
inp.type = YAP_STRING_CHARS;
out.type = YAP_STRING_ATOM|YAP_STRING_NCHARS|YAP_STRING_TRUNC;
out.sz = len;
out.max = len;
if (Yap_CVT_Text(&inp, &out PASS_REGS))
t = MkAtomTerm(out.val.a);
else t = 0L;
RECOVER_H();
}
YAPAtomTerm::YAPAtomTerm(wchar_t *s): YAPTerm() { // build string
BACKUP_H();
CACHE_REGS
seq_tv_t inp, out;
inp.val.w = s;
inp.type = YAP_STRING_WCHARS;
out.type = YAP_STRING_ATOM;
if (Yap_CVT_Text(&inp, &out PASS_REGS))
t = MkAtomTerm(out.val.a);
else t = 0L;
RECOVER_H();
}
YAPAtomTerm::YAPAtomTerm(wchar_t *s, size_t len) : YAPTerm() { // build string
BACKUP_H();
CACHE_REGS
seq_tv_t inp, out;
inp.val.w = s;
inp.type = YAP_STRING_WCHARS;
out.type = YAP_STRING_ATOM|YAP_STRING_NCHARS|YAP_STRING_TRUNC;
out.sz = len;
out.max = len;
if (Yap_CVT_Text(&inp, &out PASS_REGS))
t = MkAtomTerm(out.val.a);
else t = 0L;
RECOVER_H();
}
YAPStringTerm::YAPStringTerm(char *s) { // build string
BACKUP_H();
CACHE_REGS
seq_tv_t inp, out;
inp.val.c = s;
inp.type = YAP_STRING_CHARS;
out.type = YAP_STRING_STRING;
if (Yap_CVT_Text(&inp, &out PASS_REGS))
t = out.val.t;
else t = 0L;
RECOVER_H();
}
YAPStringTerm::YAPStringTerm(char *s, size_t len) { // build string
BACKUP_H();
CACHE_REGS
seq_tv_t inp, out;
inp.val.c = s;
inp.type = YAP_STRING_CHARS;
out.type = YAP_STRING_STRING|YAP_STRING_NCHARS|YAP_STRING_TRUNC;
out.sz = len;
out.max = len;
if (Yap_CVT_Text(&inp, &out PASS_REGS))
t = out.val.t;
else t = 0L;
RECOVER_H();
}
YAPStringTerm::YAPStringTerm(wchar_t *s): YAPTerm() { // build string
BACKUP_H();
CACHE_REGS
seq_tv_t inp, out;
inp.val.w = s;
inp.type = YAP_STRING_WCHARS;
out.type = YAP_STRING_STRING;
if (Yap_CVT_Text(&inp, &out PASS_REGS))
t = out.val.t;
else t = 0L;
RECOVER_H();
}
YAPStringTerm::YAPStringTerm(wchar_t *s, size_t len) : YAPTerm() { // build string
BACKUP_H();
CACHE_REGS
seq_tv_t inp, out;
inp.val.w = s;
inp.type = YAP_STRING_WCHARS;
out.type = YAP_STRING_STRING|YAP_STRING_NCHARS|YAP_STRING_TRUNC;
out.sz = len;
out.max = len;
if (Yap_CVT_Text(&inp, &out PASS_REGS))
t = out.val.t;
else t = 0L;
RECOVER_H();
}
YAPApplTerm::YAPApplTerm(YAPFunctor f, YAPTerm ts[]) : YAPTerm() {
UInt arity = ArityOfFunctor(f.f);
t = Yap_MkApplTerm( f.f, arity, (Term *)ts);
}
YAPApplTerm::YAPApplTerm(YAPFunctor f) : YAPTerm() {
UInt arity = ArityOfFunctor(f.f);
t = Yap_MkNewApplTerm( f.f, arity);
}
YAPPairTerm::YAPPairTerm(YAPTerm th, YAPTerm tl) : YAPTerm() {
CACHE_REGS
t = MkPairTerm( th.t, tl.t);
}
YAPPairTerm::YAPPairTerm() : YAPTerm() {
t = Yap_MkNewPairTerm( );
}
YAP_tag_t YAPTerm::tag() {
if (IsVarTerm(t)) {
CELL *pt = VarOfTerm(t);
if (IsUnboundVar(pt)) {
CACHE_REGS
if (IsAttVar(pt))
return YAP_TAG_ATT;
return YAP_TAG_UNBOUND;
}
return YAP_TAG_REF;
}
if (IsPairTerm(t))
return YAP_TAG_PAIR;
if (IsAtomOrIntTerm(t)) {
if (IsAtomTerm(t))
return YAP_TAG_ATOM;
return YAP_TAG_INT;
} else {
Functor f = FunctorOfTerm(t);
if (IsExtensionFunctor(f)) {
if (f == FunctorDBRef) {
return YAP_TAG_DBREF;
}
if (f == FunctorLongInt) {
return YAP_TAG_LONG_INT;
}
if (f == FunctorBigInt) {
big_blob_type bt = (big_blob_type)RepAppl(t)[1];
switch (bt) {
case BIG_INT:
return YAP_TAG_BIG_INT;
case BIG_RATIONAL:
return YAP_TAG_RATIONAL;
default:
return YAP_TAG_OPAQUE;
}
}
}
return YAP_TAG_APPL;
}
}
YAPTerm YAPTerm::deepCopy() {
Term tn;
BACKUP_MACHINE_REGS();
tn = Yap_CopyTerm(t);
RECOVER_MACHINE_REGS();
return new YAPTerm( tn );
}
bool YAPTerm::exactlyEqual(YAPTerm t1) {
int out;
BACKUP_MACHINE_REGS();
out = Yap_eq(Deref(t), Deref(t1.t));
RECOVER_MACHINE_REGS();
return out;
}
bool YAPTerm::unify(YAPTerm t1) {
int out;
BACKUP_MACHINE_REGS();
out = Yap_unify(Deref(t), Deref(t1.t));
RECOVER_MACHINE_REGS();
return out;
}
bool YAPTerm::unifiable(YAPTerm t1) {
int out;
BACKUP_MACHINE_REGS();
out = Yap_Unifiable(Deref(t), Deref(t1.t));
RECOVER_MACHINE_REGS();
return out;
}
bool YAPTerm::variant(YAPTerm t1) {
int out;
BACKUP_MACHINE_REGS();
out = Yap_Variant(Deref(t), Deref(t1.t));
RECOVER_MACHINE_REGS();
return out;
}
intptr_t YAPTerm::hash(size_t sz, size_t depth, bool variant) {
Int out;
BACKUP_MACHINE_REGS();
out = Yap_TermHash(t, sz, depth, variant);
RECOVER_MACHINE_REGS();
return out;
}
char *YAPAtom::name(void) {
if (IsWideAtom(a)) {
// return an UTF-8 version
size_t sz = 512;
wchar_t * ptr = a->WStrOfAE;
int ch = -1;
char *s = new char[sz], *op = s;
while (ch) {
ch = *ptr++;
utf8_put_char( op, ch );
}
sz = strlen(s)+1;
char *os = new char[sz];
memcpy(os, s, sz);
delete s;
return os;
} else if (IsBlob(a)) {
PL_blob_t *type = RepBlobProp(a->PropsOfAE)->blob_t;
size_t sz = 512;
if (type->write) {
char *s = new char[sz];
IOSTREAM *stream = Sopenmem(&s, &sz, "w");
stream->encoding = ENC_UTF8;
atom_t at = YAP_SWIAtomFromAtom(AbsAtom(a));
type->write(stream, at, 0);
Sclose(stream);
popOutputContext();
sz = strlen(s)+1;
char *os = new char[sz];
memcpy(os, s, sz);
delete s;
return os;
} else {
char *s = new char[sz];
#if defined(__linux__) || defined(__APPLE__)
snprintf(s, sz, "'%s'(%p)", AtomSWIStream->StrOfAE, a);
#else
snprintf(s, sz, "'%s'(0x%p)", AtomSWIStream->StrOfAE, a);
#endif
char *os = new char[sz];
memcpy(os, s, sz);
delete s;
return os;
}
} else {
return a->StrOfAE;
}
}
YAPQuery::YAPQuery(YAPFunctor f, YAPTerm mod, YAPTerm t[]): YAPPredicate(f, mod)
{
CACHE_REGS
/* ignore flags and module for now */
this->oq = (YAPQuery *)LOCAL_execution;
LOCAL_execution = (struct open_query_struct *)this;
this->q_open=1;
this->q_state=0;
this->q_flags = 0;
this->q_g = (Term *)t;
}
YAPQuery::YAPQuery(YAPFunctor f, YAPTerm t[]): YAPPredicate(f)
{
CACHE_REGS
/* ignore flags and module for now */
this->oq = (YAPQuery *)LOCAL_execution;
LOCAL_execution = (struct open_query_struct *)this;
this->q_open=1;
this->q_state=0;
this->q_flags = 0;
this->q_g = (Term *)t;
}
YAPQuery::YAPQuery(YAPPredicate p, YAPTerm t[]): YAPPredicate(p.ap)
{
CACHE_REGS
/* ignore flags and module for now */
this->oq = (YAPQuery *)LOCAL_execution;
LOCAL_execution = (struct open_query_struct *)this;
this->q_open=1;
this->q_state=0;
this->q_flags = 0;
this->q_g = (Term *)t;
}
int YAPQuery::next()
{
CACHE_REGS
int result;
if (this->q_open != 1) return 0;
if (setjmp(((YAPQuery *)LOCAL_execution)->q_env))
return 0;
// don't forget, on success these guys must create slots
if (this->q_state == 0) {
result = YAP_EnterGoal((YAP_PredEntryPtr)this->ap, this->q_g, &this->q_h);
} else {
LOCAL_AllowRestart = this->q_open;
result = YAP_RetryGoal(&this->q_h);
}
this->q_state = 1;
if (result == 0) {
YAP_LeaveGoal(FALSE, &this->q_h);
this->q_open = 0;
}
return result;
}
void YAPQuery::cut()
{
CACHE_REGS
if (this->q_open != 1 || this->q_state == 0) return;
YAP_LeaveGoal(FALSE, &this->q_h);
this->q_open = 0;
LOCAL_execution = (struct open_query_struct *)this->oq;
}
void YAPQuery::close()
{
CACHE_REGS
if (EX && !(this->q_flags & (PL_Q_CATCH_EXCEPTION))) {
EX = NULL;
}
/* need to implement backtracking here */
if (this->q_open != 1 || this->q_state == 0) {
return;
}
YAP_LeaveGoal(FALSE, &this->q_h);
this->q_open = 0;
LOCAL_execution = (struct open_query_struct *)this->oq;
}
int YAPPredicate::call(YAPTerm t[])
{
YAPQuery q = YAPQuery(*this, t);
int ret = q.next();
q.cut();
q.close();
return ret;
}

257
CXX/yapi.hh Normal file
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@ -0,0 +1,257 @@
#define YAP_CPP_INTERFACE 1
#include <stdlib.h>
#include <gmp.h>
extern "C" {
#include "Yap.h"
#include "Yatom.h"
#include "YapHeap.h"
#include "pl-shared.h"
#include "clause.h"
#include "yapio.h"
#include "Foreign.h"
#include "attvar.h"
#include "SWI-Stream.h"
#include "YapText.h"
#if HAVE_STDARG_H
#include <stdarg.h>
#endif
#if HAVE_STDINT_H
#include <stdint.h>
#endif
#if HAVE_STRING_H
#include <string.h>
#endif
#if _MSC_VER || defined(__MINGW32__)
#include <windows.h>
#endif
// taken from yap_structs.h
#include "iopreds.h"
// we cannot consult YapInterface.h, that conflicts with what we declare, though
// it shouldn't
}
class YAPTermHandle;
class YAPAtom;
class YAPFunctor;
class YAPQuery;
class YAPTerm {
friend class YAPPredicate;
friend class YAPTermHandle;
friend class YAPApplTerm;
friend class YAPPairTerm;
protected:
Term t;
public:
YAPTerm() {} // do nothing constructor
YAPTerm(int i) { CACHE_REGS t = MkIntegerTerm( i ); }
YAPTerm(int64_t i) { CACHE_REGS t = MkIntegerTerm( i ); }
YAPTerm(long int i) { CACHE_REGS t = MkIntegerTerm( i ); }
YAPTerm(void *ptr) { CACHE_REGS t = MkIntegerTerm( (Int)ptr ); }
YAPTerm(Term tn) { t = tn; }
YAPTerm(char *s) { Term tp ; t = YAP_ReadBuffer(s,&tp); }
YAP_tag_t tag();
YAPTerm deepCopy();
bool exactlyEqual(YAPTerm t1);
bool unify(YAPTerm t1);
bool unifiable(YAPTerm t1);
bool variant(YAPTerm t1);
intptr_t hash(size_t sz, size_t depth, bool variant);
bool isVar() { return IsVarTerm(t); }
bool isAtom() { return IsAtomTerm(t); }
bool isInteger() { return IsIntegerTerm(t); }
bool isFloat() { return IsFloatTerm(t); }
bool isCompound() { return !(IsVarTerm(t) || IsNumTerm(t)); }
bool isAppl() { return IsApplTerm(t); }
bool isPair() { return IsPairTerm(t); }
bool isGround() { return Yap_IsGroundTerm(t); }
bool isList() { return Yap_IsListTerm(t); }
bool isString() { return IsStringTerm(t); }
};
class YAPVarTerm: private YAPTerm {
public:
YAPVarTerm(): YAPTerm() { CACHE_REGS t = MkVarTerm(); }
CELL *getVar() { return VarOfTerm(t); }
bool unbound() { return IsUnboundVar(VarOfTerm(t)); }
};
class YAPApplTerm: private YAPTerm {
public:
YAPApplTerm(YAPFunctor f, YAPTerm ts[]);
YAPApplTerm(YAPFunctor f);
YAPFunctor getFunctor();
YAPTerm getArg(unsigned int i);
};
class YAPPairTerm: private YAPTerm {
public:
YAPPairTerm(YAPTerm hd, YAPTerm tl);
YAPPairTerm();
YAPTerm getHead() { return YAPTerm(HeadOfTerm(t)); }
YAPTerm getTail() { return YAPTerm(TailOfTerm(t)); }
};
class YAPAtom {
friend class YAPPredicate;
friend class YAPFunctor;
friend class YAPAtomTerm;
Atom a;
public:
YAPAtom( Atom at ) { a = at; }
YAPAtom( char * s) { a = Yap_LookupAtom( s ); }
YAPAtom( wchar_t * s) { a = Yap_LookupMaybeWideAtom( s ); }
YAPAtom( char * s, size_t len) { a = Yap_LookupAtomWithLength( s, len ); }
YAPAtom( wchar_t * s, size_t len) { a = Yap_LookupMaybeWideAtomWithLength( s, len ); }
char *name(void);
};
class YAPStringTerm: private YAPTerm {
public:
YAPStringTerm(char *s) ;
YAPStringTerm(char *s, size_t len);
YAPStringTerm(wchar_t *s) ;
YAPStringTerm(wchar_t *s, size_t len);
const char *getString() { return StringOfTerm(t); }
};
class YAPAtomTerm: private YAPTerm {
public:
YAPAtomTerm(YAPAtom a): YAPTerm() { t = MkAtomTerm(a.a); }
YAPAtomTerm(Atom a): YAPTerm() { t = MkAtomTerm(a); }
YAPAtomTerm(char *s) ;
YAPAtomTerm(char *s, size_t len);
YAPAtomTerm(wchar_t *s) ;
YAPAtomTerm(wchar_t *s, size_t len);
YAPAtom getAtom() { return YAPAtom(AtomOfTerm(t)); }
};
class YAPFunctor {
friend class YAPApplTerm;
friend class YAPPredicate;
Functor f;
public:
YAPFunctor( char * s, unsigned int arity) { f = Yap_MkFunctor( Yap_LookupAtom( s ), arity ); }
YAPFunctor( wchar_t * s, unsigned int arity) { f = Yap_MkFunctor( Yap_LookupWideAtom( s ), arity ); }
YAPFunctor( YAPAtom at, unsigned int arity) { f = Yap_MkFunctor( at.a, arity ); }
Atom name(void) {
return NameOfFunctor( f );
}
unsigned int arity(void) {
return ArityOfFunctor( f );
}
};
class YAPTermHandle {
long int handle;
public:
YAPTermHandle(Term t) {
CACHE_REGS
handle = Yap_InitSlot(t PASS_REGS);
}
~YAPTermHandle(void) {
CACHE_REGS
Yap_RecoverSlots(1 PASS_REGS);
}
YAPTerm get() {
CACHE_REGS
return new YAPTerm( Yap_GetFromSlot(handle PASS_REGS) );
}
void set(YAPTerm t) {
CACHE_REGS
Yap_PutInSlot(handle, t.t PASS_REGS);
}
};
class YAPPredicate {
friend class YAPQuery;
PredEntry *ap;
public:
YAPPredicate(PredEntry *pe) {
ap = pe;
}
YAPPredicate(YAPFunctor f) {
CACHE_REGS
ap = RepPredProp(PredPropByFunc(f.f,CurrentModule));
}
YAPPredicate(YAPFunctor f, YAPTerm mod) {
CACHE_REGS
ap = RepPredProp(PredPropByFunc(f.f,mod.t));
}
YAPPredicate(YAPAtom at, YAPTerm mod) {
CACHE_REGS
ap = RepPredProp(PredPropByAtom(at.a,mod.t));
}
YAPPredicate(YAPAtom at) {
CACHE_REGS
ap = RepPredProp(PredPropByAtom(at.a,CurrentModule));
}
YAPPredicate(YAPAtom at, unsigned int arity, YAPTerm mod) {
CACHE_REGS
if (arity) {
Functor f = Yap_MkFunctor(at.a, arity);
ap = RepPredProp(PredPropByFunc(f,mod.t));
} else {
ap = RepPredProp(PredPropByAtom(at.a,mod.t));
}
}
YAPPredicate(YAPAtom at, unsigned int arity) {
CACHE_REGS
if (arity) {
Functor f = Yap_MkFunctor(at.a, arity);
ap = RepPredProp(PredPropByFunc(f,CurrentModule));
} else {
ap = RepPredProp(PredPropByAtom(at.a,CurrentModule));
}
}
int call(YAPTerm ts[]);
};
/// interface to a YAP Query
/// uses an SWI-like status info internally
class YAPQuery: private YAPPredicate {
int q_open;
int q_state;
Term *q_g;
yamop *q_p, *q_cp;
jmp_buf q_env;
int q_flags;
YAP_dogoalinfo q_h;
YAPQuery *oq;
public:
/// full constructor, is given a functor, module, and an array of terms that must hav at least
/// the same arity as the functor.
YAPQuery(YAPFunctor f, YAPTerm mod, YAPTerm t[]);
YAPQuery(YAPFunctor f, YAPTerm t[]);
YAPQuery(YAPPredicate p, YAPTerm t[]);
YAPQuery(YAPTerm t[]);
int next();
void cut();
void close();
};

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@ -60,9 +60,10 @@ YAPSTARTUP=startup.yss
#
CC=@CC@
MPI_CC=@MPI_CC@
CPPFLAGS=@CPPFLAGS@ -I. -I$(srcdir)/H -I$(srcdir)/include -I$(srcdir)/os -I$(srcdir)/OPTYap -I$(srcdir)/BEAM
CPPFLAGS=@CPPFLAGS@ -I. -I$(srcdir)/H -I$(srcdir)/include -I$(srcdir)/os -I$(srcdir)/OPTYap -I$(srcdir)/BEAM -I$(srcdir)/CXX
EXECUTABLE_CFLAGS= @CFLAGS@ $(YAP_EXTRAS) $(DEFS) $(CPPFLAGS)
CFLAGS= @YAPLIB_CFLAGS@ $(YAP_EXTRAS) $(DEFS) $(CPPFLAGS)
CXXFLAGS= @CXXFLAGS@ $(YAP_EXTRAS) $(DEFS) $(CPPFLAGS)
C_INTERF_FLAGS= @YAPLIB_CFLAGS@ $(YAP_EXTRAS) $(DEFS) $(CPPFLAGS) -Iinclude
C_PARSER_FLAGS= @YAPLIB_CFLAGS@ $(YAP_EXTRAS) $(DEFS) $(CPPFLAGS)
#
@ -197,6 +198,7 @@ HEADERS = \
H/YapText.h \
H/cut_c.h \
H/iatoms.h H/ratoms.h H/tatoms.h \
CXX/yapi.hh \
BEAM/eam.h BEAM/eamamasm.h \
OPTYap/opt.config.h \
OPTYap/opt.proto.h OPTYap/opt.structs.h \
@ -273,6 +275,7 @@ C_SOURCES= \
C/utilpreds.c C/write.c console/yap.c \
C/yap-args.c \
C/ypstdio.c \
CXX/yapi.cpp \
BEAM/eam_am.c BEAM/eam_showcode.c \
BEAM/eamindex.c BEAM/eamamasm.c \
BEAM/eam_gc.c BEAM/eam_split.c \
@ -396,7 +399,7 @@ LIBTAI_OBJECTS = \
C_INTERFACE_OBJECTS = \
load_foreign.o load_dl.o load_dld.o load_dyld.o \
load_none.o load_aout.o load_aix.o load_dll.o load_shl.o \
c_interface.o clause_list.o
c_interface.o clause_list.o yapi.o
OR_OBJECTS = \
or.memory.o opt.init.o opt.preds.o \
@ -456,6 +459,9 @@ udi.o: C/udi.c config.h
%.o: BEAM/%.c config.h
$(CC) -c $(CFLAGS) $< -o $@
yapi.o: CXX/yapi.cpp config.h
$(CXX) -c $(CXXFLAGS) $< -o $@
sys.o: library/system/sys.c config.h
$(CC) -c $(CFPLAGS) -I$(srcdir)/include -I. $< -o $@
@ -541,6 +547,7 @@ INSTALLED_PACKAGES= \
@PKG_RDF@ \
@PKG_SEMWEB@ \
@PKG_SGML@ \
@PKG_SWIG@ \
@PKG_WINCONSOLE@ \
@PKG_ZLIB@