Hash :
a5cf1188
Author :
Thomas de Grivel
Date :
2018-08-28T18:32:21
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/*
* Copyright 2018 Thomas de Grivel <thoxdg@gmail.com> +33614550127
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include "rtbuf_type.h"
#include "symbol.h"
s_data_type g_rtbuf_data_type_type = {
sizeof(s_rtbuf_type) * 8,
DATA_TYPE_BITS
};
s_data_alloc g_rtbuf_data_type_alloc;
s_rtbuf_type *g_rtbuf_data_type;
void rtbuf_type_init ()
{
data_alloc_init(&g_rtbuf_data_type_alloc, &g_rtbuf_data_type_type,
RTBUF_TYPE_MAX, 0, 0);
g_rtbuf_data_type = g_rtbuf_data_type_alloc.mem;
rtbuf_type_define("char" , sizeof(char));
rtbuf_type_define("unsigned char" , sizeof(unsigned char));
rtbuf_type_define("short" , sizeof(short));
rtbuf_type_define("unsigned short", sizeof(unsigned short));
rtbuf_type_define("int" , sizeof(int));
rtbuf_type_define("unsigned int" , sizeof(unsigned int));
rtbuf_type_define("long" , sizeof(long));
rtbuf_type_define("unsigned long" , sizeof(unsigned long));
rtbuf_type_define("float" , sizeof(float));
rtbuf_type_define("double" , sizeof(double));
}
s_rtbuf_type * rtbuf_type_new (const char *name, unsigned int size)
{
s_rtbuf_type *rt = data_new(&g_rtbuf_data_type_alloc);
if (!rt)
return 0;
rt->name = symbol_intern(name);
rt->t.bits = size * 8;
rt->t.type = DATA_TYPE_BITS;
return rt;
}
void rtbuf_type_delete (s_rtbuf_type *rt)
{
assert(rt);
data_delete(&g_rtbuf_data_type_alloc, rt);
}
s_rtbuf_type * rtbuf_type_find (symbol name)
{
unsigned int i = 0;
unsigned int n =
g_rtbuf_data_type_alloc.n - g_rtbuf_data_type_alloc.free_n;
while (i < g_rtbuf_data_type_alloc.n && n > 0) {
if (g_rtbuf_data_type[i].name) {
if (name == g_rtbuf_data_type[i].name)
return &g_rtbuf_data_type[i];
n--;
}
i++;
}
return 0;
}
s_rtbuf_type * rtbuf_type_define (const char *name, unsigned int size)
{
s_rtbuf_type *found = rtbuf_type_find(name);
if (found && found->t.bits == size * 8)
return found;
return rtbuf_type_new(name, size);
}
s_rtbuf_type * rtbuf_type_parse_array (const char *name)
{
char *bracket = strchr(name, '[');
char *right_bracket = bracket ? strchr(bracket, ']') : 0;
if (right_bracket) {
char buf[1024];
unsigned int lb = bracket - name;
unsigned int rb = right_bracket - name;
s_rtbuf_type *element_type;
unsigned int size;
strlcpy(buf, name, sizeof(buf));
buf[lb] = 0;
if ((element_type = rtbuf_type(buf)) == 0)
return 0;
buf[rb] = 0;
size = atoi(&buf[lb + 1]);
return rtbuf_type_new(name, element_type->t.bits / 8 * size);
}
return 0;
}
s_rtbuf_type * rtbuf_type_parse_pointer (const char *name)
{
char *star = strchr(name, '*');
if (star && star[1] == 0)
return rtbuf_type_new(name, sizeof(void*));
return 0;
}
s_rtbuf_type * rtbuf_type (const char *name)
{
const char *sym = symbol_find(name);
s_rtbuf_type *rt;
if (!(rt = sym ? rtbuf_type_find(sym) : 0) &&
!(rt = rtbuf_type_parse_array(name)) &&
!(rt = rtbuf_type_parse_pointer(name)))
printf("type not found: %s\n", name);
return rt;
}
s_rtbuf_type * rtbuf_type_array (const char *element_type,
unsigned int size)
{
char buf[1024];
snprintf(buf, sizeof(buf), "%s[%u]", element_type, size);
return rtbuf_type(buf);
}