115 lines
3.0 KiB
C
115 lines
3.0 KiB
C
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/****************************************************************
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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 "compiler.h"
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#include "opcode.h"
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#include "toktyp.h"
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#include "mmemory.h"
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#include "cmd.h"
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#include "indir_enum.h"
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#include "svnames.h"
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#include "advancewindow.h"
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GBLREF char window_token;
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GBLREF boolean_t run_time;
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GBLREF triple *curtchain;
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GBLREF boolean_t dollar_zquit_anyway;
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error_def(ERR_ALIASEXPECTED);
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error_def(ERR_QUITARGUSE);
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error_def(ERR_QUITARGLST);
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LITREF mval literal_null;
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int m_quit(void)
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{
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boolean_t arg;
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int rval;
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triple *triptr;
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triple *r;
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oprtype x, *cr, tmparg;
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mvar *mvarptr;
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DCL_THREADGBL_ACCESS;
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SETUP_THREADGBL_ACCESS;
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arg = ((TK_EOL != window_token) && (TK_SPACE != window_token));
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if (TREF(for_stack_ptr) == TADR(for_stack))
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{ /* not FOR */
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if (dollar_zquit_anyway && !run_time)
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{ /* turn a plain quit into a set with and without argument conditioned on $QUIT */
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r = newtriple(OC_SVGET);
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r->operand[0] = put_ilit(SV_QUIT);
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x = put_tref(r);
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coerce(&x, OCT_BOOL);
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cr = (oprtype *)mcalloc(SIZEOF(oprtype)); /* for jump target */
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bx_tail(x.oprval.tref, (bool)TRUE, cr);
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r = newtriple(OC_RET);
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x = put_tref(r);
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r = newtriple(OC_NOOP); /* need a jump target */
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x = put_tref(r);
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*cr = put_tjmp(curtchain->exorder.bl);
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if (!arg)
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{
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r = newtriple(OC_RETARG);
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r->operand[0] = put_lit((mval *)&literal_null);
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r->operand[1] = put_ilit(FALSE);
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x = put_tref(r);
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return TRUE;
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}
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}
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if (!arg)
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{
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newtriple((run_time) ? OC_HARDRET : OC_RET);
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return TRUE;
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}
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/* We now know we have an arg. See if it is an alias indicated arg */
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if (TK_ASTERISK == window_token)
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{ /* We have QUIT * alias syntax */
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advancewindow();
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if (TK_IDENT == window_token)
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{ /* Both alias and alias container sources go through here */
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if (!lvn(&tmparg, OC_GETINDX, 0))
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return FALSE;
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r = newtriple(OC_RETARG);
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r->operand[0] = tmparg;
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r->operand[1] = put_ilit(TRUE);
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return TRUE;
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} else
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{ /* Unexpected text after alias indicator */
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stx_error(ERR_ALIASEXPECTED);
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return FALSE;
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}
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} else if ((rval = expr(&x)) && (TK_COMMA != window_token))
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{
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if (EXPR_INDR != rval)
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{
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r = newtriple(OC_RETARG);
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r->operand[0] = x;
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r->operand[1] = put_ilit(FALSE);
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} else /* Indirect argument */
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make_commarg(&x, indir_quit);
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return TRUE;
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}
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if (window_token == TK_COMMA)
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stx_error (ERR_QUITARGLST);
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return FALSE;
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} else if (!arg) /* FOR */
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{
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triptr = newtriple(OC_JMP);
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FOR_END_OF_SCOPE(1, triptr->operand[0]);
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return TRUE;
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}
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stx_error(ERR_QUITARGUSE);
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return FALSE;
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}
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