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simplify module unfolding

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This commit is contained in:
Vitor Santos Costa 2016-05-12 11:49:04 +01:00
parent abe1168b1d
commit 70f6080857
1 changed files with 6 additions and 32 deletions
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34
C/exec.c
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@ -209,8 +209,10 @@ static Int save_env_b(USES_REGS1) {
return true;
}
inline static bool do_execute(Term t, Term mod USES_REGS) {
Term t0 = t;
t = Yap_YapStripModule(t, &mod);
/* first do predicate expansion, even before you process signals.
This way you don't get to spy goal_expansion(). */
if (Yap_has_a_signal() && !LOCAL_InterruptsDisabled &&
@ -218,7 +220,7 @@ inline static bool do_execute(Term t, Term mod USES_REGS) {
return EnterCreepMode(t, mod PASS_REGS);
}
restart_exec:
if (IsVarTerm(t)) {
if (IsVarTerm(t) || IsVarTerm(mod)) {
return CallError(INSTANTIATION_ERROR, t0, mod PASS_REGS);
} else if (IsApplTerm(t)) {
register Functor f = FunctorOfTerm(t);
@ -238,23 +240,8 @@ restart_exec:
/* You thought we would be over by now */
/* but no meta calls require special preprocessing */
if (pen->PredFlags & MetaPredFlag) {
if (f == FunctorModule) {
Term tmod = ArgOfTerm(1, t);
if (!IsVarTerm(tmod) && IsAtomTerm(tmod)) {
mod = tmod;
t = ArgOfTerm(2, t);
goto restart_exec;
} else {
if (IsVarTerm(tmod)) {
return CallError(INSTANTIATION_ERROR, t0, mod PASS_REGS);
} else {
return CallError(TYPE_ERROR_ATOM, t0, mod PASS_REGS);
}
}
} else {
return CallMetaCall(t, mod PASS_REGS);
}
}
/* now let us do what we wanted to do from the beginning !! */
/* I cannot use the standard macro here because
otherwise I would dereference the argument and
@ -1209,6 +1196,7 @@ static Int execute_nonstop(USES_REGS1) { /* '$execute_nonstop'(Goal,Mod)
unsigned int arity;
Prop pe;
t = Yap_YapStripModule(t, &mod);
restart_exec:
if (IsVarTerm(mod)) {
mod = CurrentModule;
@ -1229,20 +1217,6 @@ restart_exec:
if (IsExtensionFunctor(f))
return (FALSE);
if (f == FunctorModule) {
Term tmod = ArgOfTerm(1, t);
if (!IsVarTerm(tmod) && IsAtomTerm(tmod)) {
mod = tmod;
t = ArgOfTerm(2, t);
goto restart_exec;
} else {
if (IsVarTerm(tmod)) {
return CallError(INSTANTIATION_ERROR, t0, mod PASS_REGS);
} else {
return CallError(TYPE_ERROR_ATOM, t, mod PASS_REGS);
}
}
}
pe = PredPropByFunc(f, mod);
arity = ArityOfFunctor(f);
if (arity > MaxTemps) {