str
shortStmtRendering(MalBlkPtr mb, MalStkPtr stk, InstrPtr p)
{
int i;
str base, s, t, nme;
size_t len= (mb->stop < 1000? 1000: mb->stop) * 128 /* max realistic line length estimate */;
base = s = GDKmalloc(len);
if ( s == NULL)
return s;
*s =0;
t=s;
if (p->token == REMsymbol && !( getModuleId(p) && strcmp(getModuleId(p),"querylog") == 0 && getFunctionId(p) && strcmp(getFunctionId(p),"define") == 0))
return base;
if (p->barrier == LEAVEsymbol ||
p->barrier == REDOsymbol ||
p->barrier == RETURNsymbol ||
p->barrier == YIELDsymbol ||
p->barrier == EXITsymbol ||
p->barrier == RAISEsymbol) {
snprintf(t,(len-(t-base)), "%s ", operatorName(p->barrier));
advance(t,base,len);
}
if( p->token == FUNCTIONsymbol) {
snprintf(t,(len-(t-base)), "function %s.", getModuleId(p));
advance(t,base,len);
}
if (p->token == ENDsymbol ){
snprintf(t,(len-(t-base)), "end %s.%s", getModuleId(getInstrPtr(mb,0)), getFunctionId(getInstrPtr(mb,0)));
return base;
}
// handle the result variables
for (i = 0; i < p->retc; i++)
if ( !isTmpVar(mb,getArg(p,i)) || isVarUsed(mb, getArg(p, i)) || isVarUDFtype(mb,getArg(p,i)))
break;
if (i == p->retc) // no result arguments
goto short_end;
/* display optional multi-assignment list */
if( getArgType(mb,p,0) != TYPE_void){
if (p->retc > 1 && t < base + len-1){
*t++ = '(';
*t=0;
}
for (i = 0; i < p->retc; i++) {
nme = shortRenderingTerm(mb, stk, p,i);
snprintf(t,(len-(t-base)), "%s%s", (i?", ":""), nme);
GDKfree(nme);
advance(t,base,len);
}
if (p->retc > 1 && t< base+len)
*t++ = ')';
if( t < base +len) *t++ = ':';
if( t < base +len) *t++ = '=';
if( t < base +len) *t++ = ' ';
}
*t =0;
short_end:
advance(t,base,len);
// handle the instruction mapping
snprintf(t, (len-(t-base)),"%s", (getFunctionId(p)?getFunctionId(p):""));
advance(t,base,len);
// handle the arguments, constants should be shown including their non-default type
/* display optional multi-assignment list */
if( t< base + len) *t++ = '(';
for (i = p->retc; i < p->argc; i++) {
nme = shortRenderingTerm(mb, stk, p,i);
snprintf(t,(len-(t-base)), "%s%s", (i!= p->retc? ", ":" "), nme);
GDKfree(nme);
advance(t,base,len);
if (i < p->retc - 1 && t < base+len){
*t++ = ',';
*t++ = ' ';
}
}
if( t < base + len) *t++ = ' ';
if( t < base + len) *t++ = ')';
*t=0;
if (t >= s + len)
throw(MAL,"instruction2str:","instruction too long");
return base;
}
int
inlineMALblock(MalBlkPtr mb, int pc, MalBlkPtr mc)
{
int i, k, l, n;
InstrPtr *ns, p,q;
int *nv, *np = NULL;
p = getInstrPtr(mb, pc);
q = getInstrPtr(mc, 0);
ns = GDKzalloc((l = (mb->ssize + mc->ssize + p->retc - 3)) * sizeof(InstrPtr));
if (ns == NULL)
return -1;
if ( mc->ptop > 0){
np = (int*) GDKmalloc(mc->ptop * sizeof(int));
if (np == 0){
GDKfree(ns);
return -1;
}
}
nv = (int*) GDKmalloc(mc->vtop * sizeof(int));
if (nv == 0){
GDKfree(ns);
if( np)
GDKfree(np);
return -1;
}
/* add all properties of the new block to the target environment */
for (n = 0; n < mc->ptop; n++) {
int propid = newProperty(mb);
if (propid < 0) {
assert(0);
return -1;
}
np[n] = propid;
mb->prps[propid].idx = mc->prps[n].idx;
mb->prps[propid].op = mc->prps[n].op;
mb->prps[propid].var = mc->prps[n].var; /* fixed later */
}
/* add all variables of the new block to the target environment */
for (n = 0; n < mc->vtop; n++) {
VarPtr ov, v;
if (isExceptionVariable(mc->var[n]->name)) {
nv[n] = newVariable(mb,GDKstrdup(mc->var[n]->name),TYPE_str);
if (isVarUDFtype(mc,n))
setVarUDFtype(mb,nv[n]);
if (isVarUsed(mc,n))
setVarUsed(mb,nv[n]);
} else if (isVarTypedef(mc,n)) {
nv[n] = newTypeVariable(mb,getVarType(mc,n));
} else if (isVarConstant(mc,n)) {
nv[n] = cpyConstant(mb,getVar(mc,n));
} else {
nv[n] = newTmpVariable(mb, getVarType(mc, n));
if (isVarUDFtype(mc,n))
setVarUDFtype(mb,nv[n]);
if (isVarUsed(mc,n))
setVarUsed(mb,nv[n]);
}
/* remap the properties */
ov = getVar(mc, n);
v = getVar(mb, nv[n]);
if (ov->propc > v->maxprop) {
int size = sizeof(VarRecord);
VarPtr vnew = (VarPtr) GDKzalloc(size + ov->propc * sizeof(int));
memcpy((char*) vnew, (char*) v, size);
vnew->maxprop = ov->propc;
mb->var[nv[n]] = vnew;
GDKfree(v);
v = getVar(mb, nv[n]);
}
for (i = 0; i < ov->propc; i++)
v->prps[i] = np[ov->prps[i]];
v->propc = ov->propc;
}
/* change the property variables to the new context */
for (n = 0; n < mc->ptop; n++) {
if (mc->prps[n].var)
mb->prps[np[n]].var = nv[mc->prps[n].var];
assert( mb->prps[np[n]].var >= 0);
}
/* use an alias mapping to keep track of the actual arguments */
for (n = p->retc; n < p->argc; n++)
nv[getArg(q,n)] = getArg(p, n);
k = 0;
/* find the return statement of the inline function */
for (i = 1; i < mc->stop - 1; i++) {
q = mc->stmt[i];
if( q->barrier== RETURNsymbol || q->barrier== YIELDsymbol){
/* add the mapping of the return variables */
for(n=0; n<p->retc; n++)
nv[getArg(q,n)] = getArg(p,n);
}
}
/* copy the stable part */
for (i = 0; i < pc; i++)
ns[k++] = mb->stmt[i];
for (i = 1; i < mc->stop - 1; i++) {
q = mc->stmt[i];
if( q->token == ENDsymbol)
break;
/* copy the instruction and fix variable references */
ns[k] = copyInstruction(q);
for (n = 0; n < q->argc; n++)
getArg(ns[k], n) = nv[getArg(q, n)];
if (q->barrier == RETURNsymbol || q->barrier == YIELDsymbol) {
for(n=0; n<q->retc; n++)
clrVarFixed(mb,getArg(ns[k],n)); /* for typing */
setModuleId(ns[k],getModuleId(q));
setFunctionId(ns[k],getFunctionId(q));
ns[k]->barrier = 0;
ns[k]->token = ASSIGNsymbol;
}
k++;
}
/* copy the remainder of the stable part */
freeInstruction(p);
for (i = pc + 1; i < mb->stop; i++){
ns[k++] = mb->stmt[i];
}
/* remove any free instruction */
for(; i<mb->ssize; i++)
if( mb->stmt[i]){
freeInstruction(mb->stmt[i]);
mb->stmt[i]= 0;
}
GDKfree(mb->stmt);
mb->stmt = ns;
mb->ssize = l;
mb->stop = k;
GDKfree(np);
GDKfree(nv);
return pc;
}
str
instruction2str(MalBlkPtr mb, MalStkPtr stk, InstrPtr p, int flg)
{
int i;
str base, t;
size_t len = 512 + (p->argc * 128); /* max realistic line length estimate */
str arg;
t = base = GDKmalloc(len);
if ( base == NULL)
return NULL;
if (!flg) {
*t++ = '#';
len--;
if (p->typechk == TYPE_UNKNOWN) {
*t++ = '!'; /* error */
len--;
}
}
*t = 0;
if (p->token == REMsymbol && !( getModuleId(p) && strcmp(getModuleId(p),"querylog") == 0 && getFunctionId(p) && strcmp(getFunctionId(p),"define") == 0)) {
/* do nothing */
} else if (p->barrier) {
if (p->barrier == LEAVEsymbol ||
p->barrier == REDOsymbol ||
p->barrier == RETURNsymbol ||
p->barrier == YIELDsymbol ||
p->barrier == RAISEsymbol) {
if (!copystring(&t, " ", &len))
return base;
}
arg = operatorName(p->barrier);
if (!copystring(&t, arg, &len) ||
!copystring(&t, " ", &len))
return base;
} else if( functionStart(p) && flg != LIST_MAL_CALL ){
return fcnDefinition(mb, p, t, flg, base, len + (t - base));
} else if (!functionExit(p) && flg!=LIST_MAL_CALL) {
// beautify with tabs
if (!copystring(&t, " ", &len))
return base;
}
switch (p->token<0?-p->token:p->token) {
case FCNcall:
case FACcall:
case PATcall:
case CMDcall:
case ASSIGNsymbol :
// is any variable explicit or used
for (i = 0; i < p->retc; i++)
if ( !isTmpVar(mb,getArg(p,i)) || isVarUsed(mb, getArg(p, i)) || isVarUDFtype(mb,getArg(p,i)))
break;
if (i == p->retc)
break;
/* display multi-assignment list */
if (p->retc > 1 && !copystring(&t, "(", &len))
return base;
for (i = 0; i < p->retc; i++) {
arg= renderTerm(mb, stk, p, i, flg);
if (arg) {
if (!copystring(&t, arg, &len)) {
GDKfree(arg);
return base;
}
GDKfree(arg);
}
if (i < p->retc - 1 && !copystring(&t, ", ", &len))
return base;
}
if (p->retc > 1 && !copystring(&t, ")", &len))
return base;
if (p->argc > p->retc || getFunctionId(p)) {
if (!copystring(&t, " := ", &len))
return base;
}
break;
case ENDsymbol:
if (!copystring(&t, "end ", &len) ||
!copystring(&t, getModuleId(getInstrPtr(mb,0)), &len) ||
!copystring(&t, ".", &len) ||
!copystring(&t, getFunctionId(getInstrPtr(mb, 0)), &len))
return base;
break;
case COMMANDsymbol:
case FUNCTIONsymbol:
case FACTORYsymbol:
case PATTERNsymbol:
if (flg & LIST_MAL_VALUE) {
if (!copystring(&t, operatorName(p->token), &len) ||
!copystring(&t, " ", &len))
return base;
}
return fcnDefinition(mb, p, t, flg, base, len + (t - base));
case REMsymbol:
case NOOPsymbol:
if (!copystring(&t, "#", &len))
return base;
if (getVar(mb, getArg(p, 0))->value.val.sval && getVar(mb, getArg(p, 0))->value.len > 0 &&
!copystring(&t, getVar(mb, getArg(p, 0))->value.val.sval, &len))
return base;
if (!copystring(&t, " ", &len))
return base;
break;
default:
i = snprintf(t, len, " unknown symbol ?%d? ", p->token);
if (i < 0 || (size_t) i >= len)
return base;
len -= (size_t) i;
t += i;
break;
}
if (getModuleId(p)) {
if (!copystring(&t, getModuleId(p), &len) ||
!copystring(&t, ".", &len))
return base;
}
if (getFunctionId(p)) {
if (!copystring(&t, getFunctionId(p), &len) ||
!copystring(&t, "(", &len))
return base;
} else if (p->argc > p->retc + 1) {
if (!copystring(&t, "(", &len))
return base;
}
for (i = p->retc; i < p->argc; i++) {
arg= renderTerm(mb, stk, p, i, flg);
if (arg) {
if (!copystring(&t, arg, &len)) {
GDKfree(arg);
return base;
}
GDKfree(arg);
}
if (i < p->argc -1 && !copystring(&t, ", ", &len))
return base;
}
if (getFunctionId(p) || p->argc > p->retc + 1) {
if (!copystring(&t, ")", &len))
return base;
}
if (p->token != REMsymbol){
if (!copystring(&t, ";", &len))
return base;
}
return base;
}
str
instruction2str(MalBlkPtr mb, MalStkPtr stk, InstrPtr p, int flg)
{
int i, tab = 4;
str base, s, t;
size_t len= (mb->stop < 1000? 1000: mb->stop) * 128 /* max realistic line length estimate */;
str arg;
base = s = GDKmalloc(len);
if ( s == NULL)
return s;
if (flg) {
s[0] = 0;
t = s;
} else {
s[0] = '#';
if (p->typechk == TYPE_UNKNOWN) {
s[1] = '!'; /* error */
s[2] = 0;
t = s + 2;
} else {
s[1] = 0;
t = s + 1;
}
}
advance(t,base,len);
if (p->token == REMsymbol) {
/* do nothing */
} else if (p->barrier) {
if (p->barrier == LEAVEsymbol ||
p->barrier == REDOsymbol ||
p->barrier == RETURNsymbol ||
p->barrier == YIELDsymbol ||
p->barrier == RAISEsymbol) {
for(;tab>0;tab--)
*t++= ' ';
*t= 0;
advance(t,base,len);
}
snprintf(t,(len-(t-base)), "%s ", operatorName(p->barrier));
advance(t,base,len);
} else
if( functionStart(p) && flg != LIST_MAL_CALL ){
return fcnDefinition(mb, p, s, flg, base, len);
} else if (!functionExit(p) && flg!=LIST_MAL_CALL) {
// beautify with tabs
for(;tab>0;tab--)
*t++= ' ';
*t= 0;
advance(t,base,len);
}
switch (p->token<0?-p->token:p->token) {
case FCNcall:
case FACcall:
case PATcall:
case CMDcall:
case ASSIGNsymbol :
// is any variable explicit or used
for (i = 0; i < p->retc; i++)
if (!getVarTmp(mb, getArg(p, i)) || isVarUsed(mb, getArg(p, i)) || isVarUDFtype(mb,getArg(p,i)))
break;
if (i == p->retc)
break;
/* display multi-assignment list */
if (p->retc > 1)
*t++ = '(';
for (i = 0; i < p->retc; i++) {
arg= renderTerm(mb, stk, p, i, flg);
snprintf(t,(len-(t-base)), "%s", arg);
GDKfree(arg);
advance(t,base,len);
if (i < p->retc - 1)
*t++ = ',';
}
if (p->retc > 1)
*t++ = ')';
if (p->argc > p->retc || getFunctionId(p)) {
sprintf(t, " := ");
t += 4;
}
*t = 0;
break;
case ENDsymbol:
snprintf(t,(len-(t-base)), "end %s.%s", getModuleId(getInstrPtr(mb,0)), getFunctionId(getInstrPtr(mb, 0)));
advance(t,base,len);
break;
case COMMANDsymbol:
case FUNCTIONsymbol:
case FACTORYsymbol:
case PATTERNsymbol:
if (flg & LIST_MAL_VALUE) {
snprintf(t,(len-(t-base)), "%s ", operatorName(p->token));
advance(t,base,len);
break;
}
return fcnDefinition(mb, p, s, flg, base, len);
case REMsymbol:
case NOOPsymbol:
if(getVar(mb, getArg(p, 0))->value.val.sval)
snprintf(t,(len-(t-base)), "#%s ", getVar(mb, getArg(p, 0))->value.val.sval);
else
snprintf(t, (len-(t-base)), "# ");
break;
default:
snprintf(t, (len-(t-base))," unknown symbol ?%d? ", p->token);
}
advance(t,base,len);
if (getModuleId(p))
snprintf(t, (len-(t-base)),"%s.", getModuleId(p));
advance(t,base,len);
if (getFunctionId(p)) {
snprintf(t, (len-(t-base)), "%s(", getFunctionId(p));
} else if (p->argc > p->retc + 1)
snprintf(t, (len-(t-base)), "(");
advance(t,base,len);
for (i = p->retc; i < p->argc; i++) {
arg= renderTerm(mb, stk, p, i, flg);
snprintf(t,(len-(t-base)), "%s", arg);
GDKfree(arg);
advance(t,base,len);
if (i < p->argc -1){
snprintf(t, (len-(t-base)), ",");
advance(t,base,len);
}
}
if (getFunctionId(p) || p->argc > p->retc + 1)
snprintf(t,(len-(t-base)), ")");
advance(t,base,len);
if (p->token != REMsymbol){
snprintf(t,(len-(t-base)), ";");
advance(t,base,len);
}
/* we may accidentally overwrite */
if (t > s + len)
GDKfatal("instruction2str:");
return base;
}