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asn1c
Commit 37231fb1 authored by Lev Walkin's avatar Lev Walkin
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forward and backward canonical map for CHOICE

parent f585ad62
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Showing with 129 additions and 86 deletions
libasn1compiler/asn1c_C.c
View file @ 37231fb1
......@@ -1129,22 +1129,34 @@ asn1c_lang_C_type_CHOICE_def(arg_t *arg) {
elements = 0;
}
/* Create a canonical elements map */
if(elements && (arg->flags & A1C_GEN_PER)) {
int i;
cmap = compute_canonical_members_order(arg, elements);
if(cmap) {
OUT("static const unsigned asn_MAP_%s_cmap_%d[] = {",
MKID(expr),
expr->_type_unique_index);
for(i = 0; i < elements; i++) {
if(i) OUT(",");
OUT(" %d", cmap[i]);
}
OUT(" };\n");
free(cmap);
}
}
/* Create a canonical elements map */
if(elements && (arg->flags & A1C_GEN_PER)) {
cmap = compute_canonical_members_order(arg, elements);
if(cmap) {
OUT("static const unsigned asn_MAP_%s_to_canonical_%d[] = {",
MKID(expr), expr->_type_unique_index);
for(int i = 0; i < elements; i++) {
if(i) OUT(",");
OUT(" %d", cmap[i]);
}
OUT(" };\n");
OUT("static const unsigned asn_MAP_%s_from_canonical_%d[] = {",
MKID(expr), expr->_type_unique_index);
for(int i = 0; i < elements; i++) {
if(i) OUT(",");
int j;
for(j = 0; j < elements; j++) {
if(cmap[j] == i) {
OUT(" %d", j);
break;
}
}
assert(j < elements);
}
OUT(" };\n");
free(cmap);
}
}
if(arg->embed) {
/*
......@@ -1162,24 +1174,27 @@ asn1c_lang_C_type_CHOICE_def(arg_t *arg) {
*/
emit_tag2member_map(arg, tag2el, tag2el_count, 0);
if(!(expr->_type_referenced)) OUT("static ");
OUT("asn_CHOICE_specifics_t asn_SPC_%s_specs_%d = {\n",
MKID(expr), expr->_type_unique_index);
INDENTED(
OUT("sizeof(%s),\n", c_name(arg).full_name);
OUT("offsetof(%s, _asn_ctx),\n", c_name(arg).full_name);
OUT("offsetof(%s, present),\n", c_name(arg).full_name);
OUT("sizeof(((%s *)0)->present),\n", c_name(arg).full_name);
emit_tag2member_reference(arg, expr, tag2el_count);
if(C99_MODE) OUT(".canonical_order = ");
if(cmap) OUT("asn_MAP_%s_cmap_%d,\t/* Canonically sorted */\n",
MKID(expr), expr->_type_unique_index);
else OUT("0,\n");
if(C99_MODE) OUT(".ext_start = ");
OUT("%d\t/* Extensions start */\n",
compute_extensions_start(expr));
);
OUT("};\n");
if(!(expr->_type_referenced)) OUT("static ");
OUT("asn_CHOICE_specifics_t asn_SPC_%s_specs_%d = {\n", MKID(expr),
expr->_type_unique_index);
INDENTED(
OUT("sizeof(%s),\n", c_name(arg).full_name);
OUT("offsetof(%s, _asn_ctx),\n", c_name(arg).full_name);
OUT("offsetof(%s, present),\n", c_name(arg).full_name);
OUT("sizeof(((%s *)0)->present),\n", c_name(arg).full_name);
emit_tag2member_reference(arg, expr, tag2el_count);
if(cmap) {
if(C99_MODE) OUT(".to_canonical_order = ");
OUT("asn_MAP_%s_to_canonical_%d,\n", MKID(expr),
expr->_type_unique_index);
if(C99_MODE) OUT(".from_canonical_order = ");
OUT("asn_MAP_%s_from_canonical_%d,\n", MKID(expr),
expr->_type_unique_index);
} else { OUT("0, 0,\n"); }
if(C99_MODE) OUT(".ext_start = ");
OUT("%d\t/* Extensions start */\n", compute_extensions_start(expr));
);
OUT("};\n");
/*
* Emit asn_DEF_xxx table.
......@@ -1327,7 +1342,7 @@ asn1c_lang_C_type_SIMPLE_TYPE(arg_t *arg) {
OUT("int\n");
OUT("%s", p);
if(HIDE_INNER_DEFS) OUT("_%d", expr->_type_unique_index);
OUT("_constraint(asn_TYPE_descriptor_t *td, const void *sptr,\n");
OUT("_constraint(const asn_TYPE_descriptor_t *td, const void *sptr,\n");
INDENT(+1);
OUT("\t\tasn_app_constraint_failed_f *ctfailcb, void *app_key) {");
OUT("\n");
......@@ -2292,7 +2307,7 @@ safe_string(const uint8_t *buf, int size) {
}
static void
emit_default_value(arg_t *arg, asn1p_value_t *v) {
emit_default_string_value(arg_t *arg, asn1p_value_t *v) {
OUT("static uint8_t defv[] = ");
assert(v->type == ATV_STRING);
......@@ -2330,28 +2345,58 @@ try_inline_default(arg_t *arg, asn1p_expr_t *expr, int out) {
if(fits_long && !expr->marker.default_value->value.v_integer)
expr->marker.flags &= ~EM_INDIRECT;
if(!out) {
if(C99_MODE) OUT(".default_value_cmp = ");
OUT("asn_DFL_%d_cmp_%s,",
expr->_type_unique_index,
asn1p_itoa(expr->marker.default_value->value.v_integer));
OUT("\t/* Compare DEFAULT %s */\n",
asn1p_itoa(expr->marker.default_value->value.v_integer));
if(C99_MODE) OUT(".default_value_set = ");
OUT("asn_DFL_%d_set_%s,",
expr->_type_unique_index,
asn1p_itoa(expr->marker.default_value->value.v_integer));
OUT("\t/* DEFAULT %s */\n",
OUT("\t/* Set DEFAULT %s */\n",
asn1p_itoa(expr->marker.default_value->value.v_integer));
return 1;
}
REDIR(OT_STAT_DEFS);
OUT("static int asn_DFL_%d_set_%s(int set_value, void **sptr) {\n",
OUT("static int asn_DFL_%d_cmp_%s(const void *sptr) {\n",
expr->_type_unique_index,
asn1p_itoa(expr->marker.default_value->value.v_integer));
INDENT(+1);
OUT("const %s *st = sptr;\n", asn1c_type_name(arg, expr, TNF_CTYPE));
OUT("\n");
OUT("if(!st) {\n");
OUT("\treturn -1; /* No value is not a default value */\n");
OUT("}\n");
OUT("\n");
OUT("/* Test default value %s */\n",
asn1p_itoa(expr->marker.default_value->value.v_integer));
if(fits_long) {
OUT("return (*st != %s);\n",
asn1p_itoa(expr->marker.default_value->value.v_integer));
} else {
OUT("long value;\n");
OUT("if(asn_INTEGER2long(st, &value))\n");
OUT("\treturn -1;\n");
OUT("return (value != %s);\n",
asn1p_itoa(expr->marker.default_value->value.v_integer));
}
INDENT(-1);
OUT("}\n");
OUT("static int asn_DFL_%d_set_%s(void **sptr) {\n",
expr->_type_unique_index,
asn1p_itoa(expr->marker.default_value->value.v_integer));
INDENT(+1);
OUT("%s *st = *sptr;\n", asn1c_type_name(arg, expr, TNF_CTYPE));
OUT("\n");
OUT("if(!st) {\n");
OUT("\tif(!set_value) return -1;\t/* Not a default value */\n");
OUT("\tst = (*sptr = CALLOC(1, sizeof(*st)));\n");
OUT("\tif(!st) return -1;\n");
OUT("}\n");
OUT("\n");
OUT("if(set_value) {\n");
INDENT(+1);
OUT("/* Install default value %s */\n",
asn1p_itoa(expr->marker.default_value->value.v_integer));
if(fits_long) {
......@@ -2365,24 +2410,8 @@ try_inline_default(arg_t *arg, asn1p_expr_t *expr, int out) {
OUT(");\n");
}
INDENT(-1);
OUT("} else {\n");
INDENT(+1);
OUT("/* Test default value %s */\n",
asn1p_itoa(expr->marker.default_value->value.v_integer));
if(fits_long) {
OUT("return (*st == %s);\n",
asn1p_itoa(expr->marker.default_value->value.v_integer));
} else {
OUT("long value;\n");
OUT("if(asn_INTEGER2long(st, &value))\n");
OUT("\treturn -1;\n");
OUT("return (value == %s);\n",
asn1p_itoa(expr->marker.default_value->value.v_integer));
}
INDENT(-1);
OUT("}\n");
INDENT(-1);
OUT("}\n");
REDIR(save_target);
return 1;
case ASN_BASIC_NULL:
......@@ -2394,43 +2423,58 @@ try_inline_default(arg_t *arg, asn1p_expr_t *expr, int out) {
|| expr->marker.default_value->type != ATV_STRING)
break;
if(!out) {
OUT("asn_DFL_%d_set,\t/* DEFAULT \"%s\" */\n",
if(C99_MODE) OUT(".default_value_cmp = ");
OUT("asn_DFL_%d_cmp,\t/* Compare DEFAULT \"%s\" */\n",
expr->_type_unique_index,
expr->marker.default_value->value.string.buf);
if(C99_MODE) OUT(".default_value_set = ");
OUT("asn_DFL_%d_set,\t/* Set DEFAULT \"%s\" */\n",
expr->_type_unique_index,
expr->marker.default_value->value.string.buf);
return 1;
}
REDIR(OT_STAT_DEFS);
OUT("static int asn_DFL_%d_set(int set_value, void **sptr) {\n", expr->_type_unique_index);
INDENT(+1);
emit_default_value(arg, expr->marker.default_value);
OUT("static int asn_DFL_%d_cmp(const void *sptr) {\n",
expr->_type_unique_index);
INDENT(+1);
emit_default_string_value(arg, expr->marker.default_value);
OUT("const %s *st = sptr;\n", asn1c_type_name(arg, expr, TNF_CTYPE));
OUT("\n");
OUT("if(!st) {\n");
OUT("\treturn -1; /* No value is not a default value */\n");
OUT("}\n");
OUT("\n");
OUT("if(st->size == (sizeof(defv) - 1)\n");
OUT("&& memcmp(st->buf, &defv, sizeof(defv) - 1) == 0)\n");
OUT("\treturn 0;\n");
OUT("return 1;\n");
INDENT(-1);
OUT("}\n");
OUT("static int asn_DFL_%d_set(void **sptr) {\n",
expr->_type_unique_index);
INDENT(+1);
emit_default_string_value(arg, expr->marker.default_value);
OUT("%s *st = *sptr;\n", asn1c_type_name(arg, expr, TNF_CTYPE));
OUT("uint8_t *nstr = MALLOC(sizeof(defv));\n");
OUT("\n");
OUT("if(!st) {\n");
OUT("\tif(!set_value) return -1;\t/* Not a default value */\n");
OUT("if(!nstr) return -1;\n");
OUT("memcpy(nstr, defv, sizeof(defv));\n");
OUT("\n");
OUT("if((st = *sptr)) {\n");
OUT("\tFREEMEM(st->buf);\n");
OUT("} else {\n");
OUT("\tst = (*sptr = CALLOC(1, sizeof(*st)));\n");
OUT("\tif(!st) return -1;\n");
OUT("\tif(!st) { FREEMEM(nptr); return -1; }\n");
OUT("}\n");
OUT("st->buf = nstr;\n");
OUT("st->size = sizeof(defv) - 1;\n");
OUT("\n");
OUT("if(set_value) {\n");
INDENT(+1);
OUT("uint8_t *ptr = MALLOC(sizeof(defv));\n");
OUT("if(!ptr) return -1;\n");
OUT("memcpy(ptr, &defv, sizeof(defv));\n");
OUT("FREEMEM(st->buf);\n");
OUT("st->buf = ptr;\n");
OUT("st->size = sizeof(defv) - 1;\n");
OUT("return 0;\n");
INDENT(-1);
OUT("} else {\n");
INDENT(+1);
OUT("if(st->size != (sizeof(defv) - 1)\n");
OUT("|| memcmp(st->buf, &defv, sizeof(defv) - 1))\n");
OUT("\treturn 0;\n");
OUT("return 1;\n");
INDENT(-1);
OUT("}\n"); OUT("\n");
OUT("return 0;\n");
INDENT(-1);
OUT("}\n");
REDIR(save_target);
return 1;
}
......@@ -2825,10 +2869,9 @@ emit_member_table(arg_t *arg, asn1p_expr_t *expr, asn1c_ioc_table_and_objset_t *
}
OUT(" },\n");
if(C99_MODE) OUT(".default_value = ");
if(try_inline_default(arg, expr, 0)) {
} else {
OUT("0,\n");
OUT("0, 0, /* No default value */\n");
}
if(C99_MODE) OUT(".name = ");
if(expr->_anonymous_type && !strcmp(expr->Identifier, "Member")) {
......@@ -2850,7 +2893,7 @@ emit_member_table(arg_t *arg, asn1p_expr_t *expr, asn1c_ioc_table_and_objset_t *
else
p = MKID(expr);
OUT("static int\n");
OUT("memb_%s_constraint_%d(asn_TYPE_descriptor_t *td, const void *sptr,\n", p, arg->expr->_type_unique_index);
OUT("memb_%s_constraint_%d(const asn_TYPE_descriptor_t *td, const void *sptr,\n", p, arg->expr->_type_unique_index);
INDENT(+1);
OUT("\t\tasn_app_constraint_failed_f *ctfailcb, void *app_key) {\n");
tmp_arg = *arg;
......
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