diogo/yap-6.3
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reimplement portray

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This commit is contained in:
Vitor Santos Costa 2014-10-23 01:21:22 +01:00
parent 126e498c35
commit d2984b6548
3 changed files with 26 additions and 33 deletions
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55
C/write.c
View File

@ -83,6 +83,23 @@ typedef struct write_globs {
#define lastw wglb->lw
#define last_minus wglb->last_atom_minus
static bool
callPortray(Term t, struct DB_TERM **old_EXp USES_REGS)
{
PredEntry *pe;
EX = NULL;
if ( (pe = RepPredProp(Yap_GetPredPropByFunc(FunctorPortray, USER_MODULE) ) ) &&
pe->OpcodeOfPred != FAIL_OPCODE &&
pe->OpcodeOfPred != UNDEF_OPCODE &&
Yap_execute_pred(pe, &t PASS_REGS) ) {
if (EX && !*old_EXp) *old_EXp = EX;
return true;
}
if (EX && !*old_EXp) *old_EXp = EX;
return false;
}
static void wrputn(Int, struct write_globs *);
static void wrputf(Float, struct write_globs *);
static void wrputref(CODEADDR, int, struct write_globs *);
@ -698,6 +715,7 @@ from_pointer(CELL *ptr0, struct rewind_term *rwt, struct write_globs *wglb)
rwt->u_sd.s.old = Yap_InitSlot(t PASS_REGS);
rwt->u_sd.s.ptr = Yap_InitSlot((CELL)ptr0 PASS_REGS);
if (!IsAtomicTerm(t) && !IsVarTerm(t)) {
while (x) {
if (Yap_GetDerefedFromSlot(x->u_sd.s.old PASS_REGS) == t)
@ -729,7 +747,8 @@ restore_from_write(struct rewind_term *rwt, struct write_globs *wglb)
if (wglb->Keep_terms) {
ptr = (CELL*)Yap_GetPtrFromSlot(rwt->u_sd.s.ptr PASS_REGS);
Yap_RecoverSlots(2, rwt->u_sd.s.ptr PASS_REGS);
if (!Yap_RecoverSlots(2, rwt->u_sd.s.ptr PASS_REGS))
return NULL;
} else {
ptr = rwt->u_sd.d.ptr;
}
@ -897,6 +916,7 @@ writeTerm(Term t, int p, int depth, int rinfixarg, struct write_globs *wglb, str
if (wglb->Ignore_ops) {
wrputs("'.'(",wglb->stream);
lastw = separator;
writeTerm(from_pointer(RepPair(t), &nrwt, wglb), 999, depth + 1, FALSE, wglb, &nrwt);
t = AbsPair(restore_from_write(&nrwt, wglb));
wrputs(",",wglb->stream);
@ -905,22 +925,8 @@ writeTerm(Term t, int p, int depth, int rinfixarg, struct write_globs *wglb, str
wrclose_bracket(wglb, TRUE);
return;
}
if (wglb->Use_portray) {
Term targs[1];
struct DB_TERM *old_EX = NULL;
Int sl = 0;
targs[0] = t;
Yap_PutValue(AtomPortray, MkAtomTerm(AtomNil));
if (EX) old_EX = EX;
sl = Yap_InitSlot(t PASS_REGS);
Yap_execute_goal(Yap_MkApplTerm(FunctorPortray, 1, targs), 0, 1);
t = Yap_GetFromSlot(sl PASS_REGS);
Yap_RecoverSlots(1, sl PASS_REGS);
if (old_EX != NULL) EX = old_EX;
if (Yap_GetValue(AtomPortray) == MkAtomTerm(AtomTrue))
return;
}
if (wglb->Use_portray)
if (callPortray(t, &EX PASS_REGS) ) return;
if (yap_flags[WRITE_QUOTED_STRING_FLAG] && IsCodesTerm(t)) {
putString(t, wglb);
} else {
@ -990,20 +996,7 @@ writeTerm(Term t, int p, int depth, int rinfixarg, struct write_globs *wglb, str
}
#endif
if (wglb->Use_portray) {
Term targs[1];
struct DB_TERM *old_EX = NULL;
Int sl = 0;
targs[0] = t;
Yap_PutValue(AtomPortray, MkAtomTerm(AtomNil));
if (EX) old_EX = EX;
sl = Yap_InitSlot(t PASS_REGS);
Yap_execute_goal(Yap_MkApplTerm(FunctorPortray, 1, targs),0, 1);
t = Yap_GetFromSlot(sl PASS_REGS);
Yap_RecoverSlots(1, sl PASS_REGS);
if (old_EX) EX = old_EX;
if (Yap_GetValue(AtomPortray) == MkAtomTerm(AtomTrue) || EX)
return;
if (callPortray(t, &EX PASS_REGS) ) return;
}
if (!wglb->Ignore_ops &&
Arity == 1 &&

2
H/iatoms.h
View File

@ -234,7 +234,7 @@
AtomPipe = Yap_LookupAtom("pipe");
AtomPlus = Yap_LookupAtom("+");
AtomPointer = Yap_LookupAtom("pointer");
AtomPortray = Yap_FullLookupAtom("$portray");
AtomPortray = Yap_FullLookupAtom("portray");
AtomPredicateIndicator = Yap_LookupAtom("predicate_indicator");
AtomPrimitive = Yap_LookupAtom("primitive");
AtomPrintMessage = Yap_LookupAtom("print_message");

2
misc/ATOMS
View File

@ -239,7 +239,7 @@ A Pi N "pi"
A Pipe N "pipe"
A Plus N "+"
A Pointer N "pointer"
A Portray F "$portray"
A Portray F "portray"
A PredicateIndicator N "predicate_indicator"
A Primitive N "primitive"
A PrintMessage N "print_message"