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/*
* compiler/back-ends/c-gen/util.c - utilities for generating C encoders and decoders
*
* MS 91/11/04
* Copyright (C) 1991, 1992 Michael Sample
* and the University of British Columbia
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* $Header: /baseline/SNACC/compiler/back-ends/c-gen/util.c,v 1.5 2003/07/29 21:06:06 colestor Exp $
* $Log: util.c,v $
* Revision 1.5 2003/07/29 21:06:06 colestor
* Added "env" reference back to "C" generated code.
*
* Revision 1.4 2003/04/29 20:59:55 leonberp
* integerated Deepak's changes for IOB support
*
* Revision 1.3 2002/09/16 17:35:09 mcphersc
* Fixed warnings
*
* Revision 1.2 2000/10/24 14:54:48 rwc
* Updated to remove high-level warnings (level 4 on MSVC++) for an easier build.
* SOME warnings persist due to difficulty in modifying the SNACC compiler to
* properly build clean source; also some files are built by Lex/Yacc.
*
* Revision 1.1.1.1 2000/08/21 20:36:05 leonberp
* First CVS Version of SNACC.
*
* Revision 1.4 1997/08/28 07:26:10 povey
* Changes to support DER encoding/decoding
*
* Revision 1.3.1.1 1997/08/20 23:14:41 povey
*
* Revision 1.3 1995/07/25 18:48:38 rj
* changed `_' to `-' in file names.
*
* Revision 1.2 1994/09/01 00:26:52 rj
* snacc_config.h removed.
*
* Revision 1.1 1994/08/28 09:48:44 rj
* first check-in. for a list of changes to the snacc-1.1 distribution please refer to the ChangeLog.
*
*/
#include <stdio.h>
#include "asn-incl.h"
#include "asn1module.h"
#include "rules.h"
#include "snacc-util.h"
#include "enc-rules.h"
#include "util.h"
#include <string.h>
void
MakeVarPtrRef PARAMS ((r, td, parent, fieldType, parentVarName, newVarName),
CRules *r _AND_
TypeDef *td _AND_
Type *parent _AND_
Type *fieldType _AND_
char *parentVarName _AND_
char *newVarName)
{
CTRI *ctri;
ctri = fieldType->cTypeRefInfo;
/* always put in brackets to save future referencing hassles */
strcpy (newVarName, "(");
/* make ref'd field into a ptr by taking it's addr if nec */
if (!ctri->isPtr)
strcat (newVarName, "&");
/* start with ref to parent */
strcat (newVarName, parentVarName);
/* ref this field */
if ((td->type == parent) || (parent->cTypeRefInfo->isPtr))
strcat (newVarName, "->");
else
strcat (newVarName, ".");
/* ref choice union field if nec */
if (parent->basicType->choiceId == BASICTYPE_CHOICE)
{
strcat (newVarName, r->choiceUnionFieldName);
strcat (newVarName, ".");
}
strcat (newVarName, ctri->cFieldName);
strcat (newVarName, ")");
} /* MakeVarPtrRef */
void
MakeVarValueRef PARAMS ((r, td, parent, fieldType, parentVarName, newVarName),
CRules *r _AND_
TypeDef *td _AND_
Type *parent _AND_
Type *fieldType _AND_
char *parentVarName _AND_
char *newVarName)
{
CTRI *ctri;
ctri = fieldType->cTypeRefInfo;
/* always put in brackets to save future referencing hassles */
strcpy (newVarName, "(");
/* make ref'd field into a value by de-referencing if nec */
if (ctri->isPtr)
strcat (newVarName, "*");
/* start with ref to parent */
strcat (newVarName, parentVarName);
/* ref this field */
if ((td->type == parent) || (parent->cTypeRefInfo->isPtr))
strcat (newVarName, "->");
else
strcat (newVarName, ".");
/* ref choice union field if nec */
if (parent->basicType->choiceId == BASICTYPE_CHOICE)
{
strcat (newVarName, r->choiceUnionFieldName);
strcat (newVarName, ".");
}
strcat (newVarName, ctri->cFieldName);
strcat (newVarName, ")");
} /* MakeVarValueRef */
void
MakeChoiceIdValueRef PARAMS ((r, td, parent, fieldType, parentVarName, newVarName),
CRules *r _AND_
TypeDef *td _AND_
Type *parent _AND_
Type *fieldType _AND_
char *parentVarName _AND_
char *newVarName)
{
/* always put in brackets to save future referencing hassles */
strcpy (newVarName, "(");
/* start with ref to parent */
strcat (newVarName, parentVarName);
/* ref this field */
if ((td->type == parent) || (parent->cTypeRefInfo->isPtr))
strcat (newVarName, "->");
else
strcat (newVarName, ".");
strcat (newVarName, parent->cTypeRefInfo->choiceIdEnumFieldName);
strcat (newVarName, ")");
r = r; /*AVOIDS warning.*/
} /* MakeChoiceIdValueRef */
void
PrintElmtAllocCode PARAMS ((src, type, varRefPtrName),
FILE *src _AND_
Type *type _AND_
char *varRefPtrName)
{
CTRI *ctri1;
CTRI *ctri2;
Type *t;
t = GetType (type);
ctri1 = type->cTypeRefInfo;
ctri2 = t->cTypeRefInfo;
if (ctri1->isPtr)
{
if (ctri2->cTypeId == C_LIST)
fprintf (src, "\t%s = AsnListNew(sizeof(char*));\n", varRefPtrName);
else
fprintf (src, "\t%s = (%s*)Asn1Alloc(sizeof(%s));\n", varRefPtrName, ctri1->cTypeName, ctri1->cTypeName);
//fprintf (src," CheckAsn1Alloc (%s, env);\n", varRefPtrName);
//fprintf (src," CheckAsn1Alloc (%s);\n", varRefPtrName); // Deepak: 18/Apr/2003 Not Required
}
} /* PrintElmtAllocCode */
/*
* prints code to decode EOCs for the lengths that go with extra tagging
* maxLenLevel - the highest used length variable (ie 2 for elmtLen2)
* minLenLevel - the lowest valid length variable (ie 0 for elmtLen0)
* lenBaseVarName - len var name sans number (ie elmtLen for elmtLen2)
* totalLevel - current level for the running total
* totalBaseName - total var name sans number
* (ie totalElmtLen for totalElmtLen1)
*/
void
PrintEocDecoders PARAMS ((f, maxLenLevel, minLenLevel, lenBaseVarName, totalLevel, totalBaseVarName),
FILE *f _AND_
int maxLenLevel _AND_
int minLenLevel _AND_
char *lenBaseVarName _AND_
int totalLevel _AND_
char *totalBaseVarName)
{
int i;
for (i = maxLenLevel; i > minLenLevel; i--)
{
fprintf (f,"\tif (%s%d == INDEFINITE_LEN)\n", lenBaseVarName, i);
fprintf (f," %sDecEoc (b, &%s%d, env);\n", GetEncRulePrefix(), totalBaseVarName, totalLevel);
//RWC;fprintf (f,"\t\t%sDecEoc(b,&%s%d);\n", GetEncRulePrefix(), totalBaseVarName, totalLevel);
}
} /* PrintEocDeocoders */
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