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/*
* Copyright (c) 1997 - 2000 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "gen_locl.h"
/*
RCSID("$KTH: gen_copy.c,v 1.12 2001/09/25 13:39:26 assar Exp $");
*/
static void
copy_primitive (const char *typename, const char *from, const char *to)
{
fprintf (codefile, "if(copy_%s(%s, %s)) return ENOMEM;\n",
typename, from, to);
}
static void
copy_type (const char *from, const char *to, const Type *t)
{
switch (t->type) {
case TType:
#if 0
copy_type (from, to, t->symbol->type);
#endif
fprintf (codefile, "if(copy_%s(%s, %s)) return ENOMEM;\n",
t->symbol->gen_name, from, to);
break;
case TInteger:
case TUInteger:
case TEnumerated :
fprintf(codefile, "*(%s) = *(%s);\n", to, from);
break;
case TOctetString:
copy_primitive ("octet_string", from, to);
break;
case TOID:
copy_primitive ("oid", from, to);
break;
case TBitString: {
fprintf(codefile, "*(%s) = *(%s);\n", to, from);
break;
}
case TSequence: {
Member *m;
int tag = -1;
if (t->members == NULL)
break;
for (m = t->members; m && tag != m->val; m = m->next) {
char *f;
char *t;
asprintf (&f, "%s(%s)->%s",
m->optional ? "" : "&", from, m->gen_name);
asprintf (&t, "%s(%s)->%s",
m->optional ? "" : "&", to, m->gen_name);
if(m->optional){
fprintf(codefile, "if(%s) {\n", f);
fprintf(codefile, "%s = malloc(sizeof(*%s));\n", t, t);
fprintf(codefile, "if(%s == NULL) return ENOMEM;\n", t);
}
copy_type (f, t, m->type);
if(m->optional){
fprintf(codefile, "}else\n");
fprintf(codefile, "%s = NULL;\n", t);
}
if (tag == -1)
tag = m->val;
free (f);
free (t);
}
break;
}
case TSequenceOf: {
char *f;
char *T;
fprintf (codefile, "if(((%s)->val = "
"malloc((%s)->len * sizeof(*(%s)->val))) == NULL && (%s)->len != 0)\n",
to, from, to, from);
fprintf (codefile, "return ENOMEM;\n");
fprintf(codefile,
"for((%s)->len = 0; (%s)->len < (%s)->len; (%s)->len++){\n",
to, to, from, to);
asprintf(&f, "&(%s)->val[(%s)->len]", from, to);
asprintf(&T, "&(%s)->val[(%s)->len]", to, to);
copy_type(f, T, t->subtype);
fprintf(codefile, "}\n");
free(f);
free(T);
break;
}
case TGeneralizedTime:
fprintf(codefile, "*(%s) = *(%s);\n", to, from);
break;
case TGeneralString:
copy_primitive ("general_string", from, to);
break;
case TApplication:
copy_type (from, to, t->subtype);
break;
default :
abort ();
}
}
void
generate_type_copy (const Symbol *s)
{
fprintf (headerfile,
"int copy_%s (const %s *, %s *);\n",
s->gen_name, s->gen_name, s->gen_name);
fprintf (codefile, "int\n"
"copy_%s(const %s *from, %s *to)\n"
"{\n",
s->gen_name, s->gen_name, s->gen_name);
copy_type ("from", "to", s->type);
fprintf (codefile, "return 0;\n}\n\n");
}
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