67 lines
1.5 KiB
C
67 lines
1.5 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 "toktyp.h"
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#include "mdq.h"
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#include "fullbool.h"
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error_def(ERR_VAREXPECTED);
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int glvn(oprtype *a)
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{
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triple *oldchain, *ref;
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oprtype x1;
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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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switch (TREF(window_token))
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{
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case TK_IDENT:
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if (!lvn(a,OC_GETINDX,0))
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return FALSE;
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return TRUE;
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case TK_CIRCUMFLEX:
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if (!gvn())
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return FALSE;
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*a = put_tref(newtriple(OC_GVGET));
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return TRUE;
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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(&x1))
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{
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setcurtchain(oldchain);
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return FALSE;
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}
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ref = newtriple(OC_INDGLVN);
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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(&x1))
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return FALSE;
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ref = newtriple(OC_INDGLVN);
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}
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if (TREF(expr_depth))
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(TREF(side_effect_base))[TREF(expr_depth)] = (OLD_SE != TREF(side_effect_handling));
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ref->operand[0] = x1;
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*a = put_tref(ref);
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return TRUE;
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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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}
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