/* $OpenXM: OpenXM_contrib2/asir2000/parse/pvar.c,v 1.1 1999/12/03 07:39:12 noro Exp $ */
#include "ca.h"
#include "parse.h"
NODE PVSS;
void mkpvs()
{
VS pvs;
pvs = (VS)MALLOC(sizeof(struct oVS));
pvs->va = (struct oPV *)MALLOC(DEFSIZE*sizeof(struct oPV));
pvs->n = 0;
pvs->asize=DEFSIZE;
CPVS = pvs;
}
void pushpvs(f)
FUNC f;
{
VS pvs;
NODE node;
int level;
extern int evalstatline;
pvs = f->f.usrf->pvs;
if ( PVSS ) {
((VS)BDY(PVSS))->at = evalstatline;
level = ((VS)BDY(PVSS))->level+1;
} else
level = 1;
MKNODE(node,pvs,PVSS);
PVSS = node;
CPVS = (VS)MALLOC(sizeof(struct oVS)); BDY(PVSS) = (pointer)CPVS;
CPVS->usrf = f;
CPVS->n = CPVS->asize = pvs->n;
CPVS->level = level;
if ( CPVS->n ) {
CPVS->va = (struct oPV *)MALLOC(CPVS->n*sizeof(struct oPV));
bcopy((char *)pvs->va,(char *)CPVS->va,(int)(pvs->n*sizeof(struct oPV)));
}
if ( nextbp )
nextbplevel++;
}
void poppvs() {
PVSS = NEXT(PVSS);
if ( PVSS )
CPVS = (VS)BDY(PVSS);
else
CPVS = GPVS;
if ( nextbp )
nextbplevel--;
}
int gdef;
int makepvar(str)
char *str;
{
int c;
c = getpvar(CPVS,str,0);
if ( gdef ) {
getpvar(EPVS,str,0);
if ( CPVS != GPVS ) {
getpvar(GPVS,str,0);
CPVS->va[c].attr = 1;
}
} else if ( (CPVS != GPVS) &&
(CPVS->va[c].attr || (getpvar(EPVS,str,1) >= 0)) ) {
CPVS->va[c].attr = 1;
c = (getpvar(GPVS,str,1)|MSB);
}
return c;
}
extern FUNC parse_targetf;
int searchpvar(str)
char *str;
{
VS pvs;
int i;
if ( parse_targetf && parse_targetf->id != A_USR )
return -1;
pvs = parse_targetf ? parse_targetf->f.usrf->pvs : GPVS;
i = getpvar(pvs,str,1);
if ( ((i>=0)&&pvs->va[i].attr) || (i<0) )
return getpvar(GPVS,str,1)|MSB;
else
return i;
}
int getpvar(pvs,str,searchonly)
VS pvs;
char *str;
int searchonly;
{
struct oPV *va;
PV v;
int i;
for ( va = pvs->va, i = 0; i < (int)pvs->n; i++ )
if ( va[i].name && !strcmp(va[i].name,str) )
return i;
if ( searchonly )
return -1;
if ( pvs->asize == pvs->n )
reallocarray((char **)&pvs->va,(int *)&pvs->asize,(int *)&pvs->n,(int)sizeof(struct oPV));
v = &pvs->va[pvs->n];
NAME(v) = (char *)CALLOC(strlen(str)+1,sizeof(char));
strcpy(NAME(v),str); v->priv = 0;
v->attr= 0; v->type = -1; i = pvs->n; pvs->n++;
return i;
}
#if defined(VISUAL)
#define PCLOSE _pclose
#else
#define PCLOSE pclose
#endif
void closecurrentinput()
{
if ( asir_infile && !asir_infile->fp )
return;
#if defined(THINK_C) || defined(VISUAL)
#if defined(THINK_C)
void setDir(short);
fclose(asir_infile->fp);
setDir(asir_infile->vol);
unlink(asir_infile->tname);
resetDir();
#else
fclose(asir_infile->fp);
unlink(asir_infile->tname);
#endif
#else
PCLOSE(asir_infile->fp);
#endif
asir_infile = NEXT(asir_infile);
resetpvs();
}
void resetpvs()
{
if ( !NEXT(asir_infile) ) {
PVSS = 0; CPVS = GPVS; nextbp = 0;
if ( EPVS->va ) {
bzero((char *)EPVS->va,(int)(EPVS->asize*sizeof(struct oPV))); EPVS->n = 0;
}
}
}
static NODE saved_PVSS;
static VS saved_CPVS;
static int saved_nextbp, saved_nextbplevel;
void savepvs()
{
saved_PVSS = PVSS;
saved_CPVS = CPVS;
saved_nextbp = nextbp;
saved_nextbplevel = nextbplevel;
}
void restorepvs()
{
PVSS = saved_PVSS;
CPVS = saved_CPVS;
nextbp = saved_nextbp;
nextbplevel = saved_nextbplevel;
}
void storeans(p)
pointer p;
{
if ( APVS->asize == APVS->n )
reallocarray((char **)&APVS->va,(int *)&APVS->asize,(int *)&APVS->n,(int)sizeof(struct oPV));
APVS->va[APVS->n++].priv = p;
}
#if 1
pointer evalpv(id,expr,f)
int id;
FNODE expr;
pointer f;
{
pointer a,val = 0;
pointer *addr;
if ( expr->id != I_PVAR && expr->id != I_CAST )
error("evalpv : invalid assignment");
switch ( id ) {
case I_PRESELF:
getmemberp((FNODE)expr,(Obj **)&addr);
(*((ARF)f)->fp)(CO,*addr,ONE,&val); *addr = val; break;
case I_POSTSELF:
getmemberp((FNODE)expr,(Obj **)&addr);
val = *addr; (*((ARF)f)->fp)(CO,*addr,ONE,&a); *addr = a; break;
case I_PVAR:
getmember((FNODE)expr,(Obj *)&val); break;
case I_ASSPVAR:
getmemberp((FNODE)expr,(Obj **)&addr); *addr = val = eval((FNODE)f); break;
}
return val;
}
#endif
#if 0
pointer evalpv(id,tree,f)
int id;
NODE2 tree;
pointer f;
{
pointer a,val = 0;
pointer *addr;
int pv;
NODE ind,tn;
switch ( id ) {
case I_PRESELF:
getmemberp((FNODE)tree,(Obj **)&addr);
(*((ARF)f)->fp)(CO,*addr,ONE,&val); *addr = val; break;
case I_POSTSELF:
getmemberp((FNODE)tree,(Obj **)&addr);
val = *addr; (*((ARF)f)->fp)(CO,*addr,ONE,&a); *addr = a; break;
case I_PVAR:
pv = (int)BDY1(tree); ind = (NODE)BDY2(tree); GETPV(pv,a);
if ( !ind )
val = a;
else {
evalnodebody(ind,&tn); getarray(a,tn,&val);
}
break;
case I_ASSPVAR:
pv = (int)BDY1(tree); ind = (NODE)BDY2(tree);
if ( !ind ) {
val = eval(f); ASSPV(pv,val);
} else {
GETPV(pv,a);
if ( a ) {
evalnodebody(ind,&tn); putarray(a,tn,val = eval(f));
}
}
break;
}
return val;
}
#endif