fis-gtm/sr_port/op_indget.c

132 lines
3.6 KiB
C

/****************************************************************
* *
* Copyright 2001, 2011 Fidelity Information Services, Inc *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
#include "mdef.h"
#include "lv_val.h"
#include "compiler.h"
#include "toktyp.h"
#include "opcode.h"
#include "indir_enum.h"
#include "mdq.h"
#include "cache.h"
#include "hashtab_objcode.h"
#include "op.h"
#include "rtnhdr.h"
#include "valid_mname.h"
#include "fullbool.h"
GBLREF symval *curr_symval;
error_def(ERR_INDMAXNEST);
error_def(ERR_VAREXPECTED);
void op_indget(mval *dst, mval *target, mval *value)
{
icode_str indir_src;
int rval;
ht_ent_mname *tabent;
mstr *obj, object;
oprtype v;
triple *s, *src, *oldchain, tmpchain, *r, *triptr;
var_tabent targ_key;
DCL_THREADGBL_ACCESS;
SETUP_THREADGBL_ACCESS;
if ((TREF(ind_source_sp) >= TREF(ind_source_top)) || (TREF(ind_result_sp) >= TREF(ind_result_top)))
rts_error(VARLSTCNT(1) ERR_INDMAXNEST); /* mdbcondition_handler resets ind_result_sp & ind_source_sp */
MV_FORCE_DEFINED(value);
MV_FORCE_STR(target);
indir_src.str = target->str;
indir_src.code = indir_get;
if (NULL == (obj = cache_get(&indir_src)))
{
obj = &object;
if (valid_mname(&target->str))
{
targ_key.var_name = target->str;
COMPUTE_HASH_MNAME(&targ_key);
tabent = lookup_hashtab_mname(&curr_symval->h_symtab, &targ_key);
if (!tabent || !LV_IS_VAL_DEFINED(tabent->value))
*dst = *value;
else
*dst = ((lv_val *)tabent->value)->v;
dst->mvtype &= ~MV_ALIASCONT; /* Make sure alias container property does not pass */
return;
}
comp_init(&target->str);
src = newtriple(OC_IGETSRC);
switch (TREF(window_token))
{
case TK_IDENT:
if (EXPR_FAIL != (rval = lvn(&v, OC_SRCHINDX, 0))) /* NOTE assignment */
{
s = newtriple(OC_FNGET2);
s->operand[0] = v;
s->operand[1] = put_tref(src);
}
break;
case TK_CIRCUMFLEX:
if (EXPR_FAIL != (rval = gvn())) /* NOTE assignment */
{
r = newtriple(OC_FNGVGET1);
s = newtriple(OC_FNGVGET2);
s->operand[0] = put_tref(r);
s->operand[1] = put_tref(src);
}
break;
case TK_ATSIGN:
TREF(saw_side_effect) = TREF(shift_side_effects);
if (TREF(shift_side_effects) && (GTM_BOOL == TREF(gtm_fullbool)))
{
dqinit(&tmpchain, exorder);
oldchain = setcurtchain(&tmpchain);
if (EXPR_FAIL != (rval = indirection(&v))) /* NOTE assignment */
{
s = newtriple(OC_INDGET);
s->operand[0] = v;
s->operand[1] = put_tref(src);
newtriple(OC_GVSAVTARG);
setcurtchain(oldchain);
dqadd(TREF(expr_start), &tmpchain, exorder);
TREF(expr_start) = tmpchain.exorder.bl;
triptr = newtriple(OC_GVRECTARG);
triptr->operand[0] = put_tref(TREF(expr_start));
} else
setcurtchain(oldchain);
} else
{
if (EXPR_FAIL != (rval = indirection(&v))) /* NOTE assignment */
{
s = newtriple(OC_INDGET);
s->operand[0] = v;
s->operand[1] = put_tref(src);
}
}
break;
default:
stx_error(ERR_VAREXPECTED);
rval = EXPR_FAIL;
break;
}
v = put_tref(s);
if (EXPR_FAIL == comp_fini(rval, obj, OC_IRETMVAL, &v, target->str.len))
return;
indir_src.str.addr = target->str.addr;
cache_put(&indir_src, obj);
/* Fall into code activation below */
}
*(TREF(ind_result_sp))++ = dst;
*(TREF(ind_source_sp))++ = value;
comp_indr(obj);
return;
}