fis-gtm/sr_port/f_query.c

/****************************************************************
 *								*
 *	Copyright 2001, 2010 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 "compiler.h"
#include "opcode.h"
#include "indir_enum.h"
#include "toktyp.h"
#include "mdq.h"

GBLREF char		window_token;

int f_query ( oprtype *a, opctype op)
{
	triple		*oldchain, tmpchain, *r, *r0, *r1, *triptr;
	error_def	(ERR_VAREXPECTED);
	DCL_THREADGBL_ACCESS;

	SETUP_THREADGBL_ACCESS;
	if (window_token == TK_IDENT)
	{
		if (!lvn (a, OC_FNQUERY, 0))
			return FALSE;
		assert (a->oprclass == TRIP_REF);
		if (a->oprval.tref->opcode == OC_FNQUERY)
		{
			assert (a->oprval.tref->opcode == OC_FNQUERY);
			assert (a->oprval.tref->operand[0].oprclass == TRIP_REF);
			assert (a->oprval.tref->operand[0].oprval.tref->opcode == OC_ILIT);
			assert (a->oprval.tref->operand[0].oprval.tref->operand[0].oprclass == ILIT_REF);
			assert (a->oprval.tref->operand[0].oprval.tref->operand[0].oprval.ilit > 0);
			a->oprval.tref->operand[0].oprval.tref->operand[0].oprval.ilit += 2;
			assert (a->oprval.tref->operand[1].oprclass == TRIP_REF);
			assert (a->oprval.tref->operand[1].oprval.tref->opcode == OC_PARAMETER);
			assert (a->oprval.tref->operand[1].oprval.tref->operand[0].oprclass == TRIP_REF);
			r0 = a->oprval.tref->operand[1].oprval.tref->operand[0].oprval.tref;
			assert (r0->opcode == OC_VAR);
			assert (r0->operand[0].oprclass == MVAR_REF);
			r1 = maketriple (OC_PARAMETER);
			r1->operand[0] = put_str(r0->operand[0].oprval.vref->mvname.addr, r0->operand[0].oprval.vref->mvname.len);
			r1->operand[1] = a->oprval.tref->operand[1];
			a->oprval.tref->operand[1] = put_tref (r1);
			dqins (a->oprval.tref->exorder.fl, exorder, r1);
		} else
		{
			assert (a->oprval.tref->opcode == OC_VAR);
			r0 = newtriple (OC_FNQUERY);
			r0->operand[0] = put_ilit (3);
			r0->operand[1] = put_tref (newtriple (OC_PARAMETER));
			r0->operand[1].oprval.tref->operand[0] = put_str(a->oprval.tref->operand[0].oprval.vref->mvname.addr,
									a->oprval.tref->operand[0].oprval.vref->mvname.len);
			r1 = r0->operand[1].oprval.tref;
			r1->operand[1] = *a;
			*a = put_tref (r0);
		}
	} else
	{
		r = maketriple(op);
		switch (window_token)
	{
	case TK_CIRCUMFLEX:
		if (!gvn())
			return FALSE;
		r->opcode = OC_GVQUERY;
		ins_triple(r);
		break;
	case TK_ATSIGN:
		if (TREF(shift_side_effects))
		{
			dqinit(&tmpchain, exorder);
			oldchain = setcurtchain(&tmpchain);
			if (!indirection(&(r->operand[0])))
			{
				setcurtchain(oldchain);
				return FALSE;
			}
			r->operand[1] = put_ilit((mint)indir_fnquery);
			ins_triple(r);
			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
		{
			if (!indirection(&(r->operand[0])))
				return FALSE;
			r->operand[1] = put_ilit((mint)indir_fnquery);
			ins_triple(r);
		}
		r->opcode = OC_INDFUN;
		break;
	default:
		stx_error(ERR_VAREXPECTED);
		return FALSE;
	}
	*a = put_tref(r);
	}
	return TRUE;
}