85 lines
2.1 KiB
C
85 lines
2.1 KiB
C
/****************************************************************
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* *
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* Copyright 2001, 2012 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 "compiler.h"
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#include "opcode.h"
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#include "indir_enum.h"
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#include "toktyp.h"
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#include "mdq.h"
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#include "fullbool.h"
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error_def(ERR_GVNEXTARG);
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error_def(ERR_LVORDERARG);
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error_def(ERR_VAREXPECTED);
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int f_next(oprtype *a, opctype op)
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{
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triple *oldchain, *ref, *r;
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save_se save_state;
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DCL_THREADGBL_ACCESS;
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SETUP_THREADGBL_ACCESS;
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r = maketriple(op);
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switch (TREF(window_token))
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{
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case TK_IDENT:
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if (TK_LPAREN != TREF(director_token))
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{
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stx_error(ERR_LVORDERARG);
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return FALSE;
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}
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if (!lvn(&(r->operand[0]), OC_SRCHINDX,r))
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return FALSE;
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ins_triple(r);
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break;
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case TK_CIRCUMFLEX:
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ref = TREF(shift_side_effects) ? TREF(expr_start) : (TREF(curtchain))->exorder.bl;
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if (!gvn())
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return FALSE;
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/* the following assumes OC_LIT and OC_GVNAME are all one gets for an unsubscripted global variable reference */
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if ((TREF(shift_side_effects) ? TREF(expr_start) : TREF(curtchain))->exorder.bl->exorder.bl->exorder.bl == ref)
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{
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stx_error(ERR_GVNEXTARG);
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return FALSE;
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}
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r->opcode = OC_GVNEXT;
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ins_triple(r);
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break;
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case TK_ATSIGN:
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if (SHIFT_SIDE_EFFECTS)
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{
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START_GVBIND_CHAIN(&save_state, oldchain);
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if (!indirection(&(r->operand[0])))
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{
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setcurtchain(oldchain);
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return FALSE;
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}
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r->operand[1] = put_ilit((mint)indir_fnnext);
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ins_triple(r);
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PLACE_GVBIND_CHAIN(&save_state, oldchain);
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} else
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{
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if (!indirection(&(r->operand[0])))
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return FALSE;
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r->operand[1] = put_ilit((mint)indir_fnnext);
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ins_triple(r);
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}
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r->opcode = OC_INDFUN;
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break;
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default:
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stx_error(ERR_VAREXPECTED);
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return FALSE;
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}
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*a = put_tref(r);
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return TRUE;
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}
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