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