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asn1: Expand decoration w/ C types

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This commits allows `heim_object_t` as a type and causes the generated
code to use the `heim_retain()` and `heim_release()` functions for
copying and releasing values of such types.

Also, now one can have more than one decoration per-type.
This commit is contained in:
Nicolas Williams
2022-01-10 18:09:07 -06:00
parent ef906991fd
commit 40d1271094
14 changed files with 335 additions and 276 deletions
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14
lib/asn1/gen_copy.c
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@@ -229,6 +229,7 @@ void
generate_type_copy (const Symbol *s)
{
struct decoration deco;
ssize_t more_deco = -1;
int preserve = preserve_type(s->name) ? TRUE : FALSE;
int save_used_fail = used_fail;
@@ -240,19 +241,20 @@ generate_type_copy (const Symbol *s)
"memset(to, 0, sizeof(*to));\n",
s->gen_name, s->gen_name, s->gen_name);
copy_type ("from", "to", s->type, preserve);
if (decorate_type(s->gen_name, &deco)) {
if (deco.ext &&
(deco.copy_function_name == NULL ||
deco.copy_function_name[0] == '\0')) {
while (decorate_type(s->gen_name, &deco, &more_deco)) {
if (deco.heim_object) {
fprintf(codefile, "(to)->%s = heim_retain((from)->%s);\n",
deco.field_name, deco.field_name);
} else if (deco.ext && deco.copy_function_name == NULL) {
/* Decorated with field of external type but no copy function */
if (deco.opt || deco.void_star)
if (deco.ptr)
fprintf(codefile, "(to)->%s = 0;\n", deco.field_name);
else
fprintf(codefile, "memset(&(to)->%s, 0, sizeof((to)->%s));\n",
deco.field_name, deco.field_name);
} else if (deco.ext) {
/* Decorated with field of external type w/ copy function */
if (deco.opt) {
if (deco.ptr) {
fprintf(codefile, "if (from->%s) {\n", deco.field_name);
fprintf(codefile, "(to)->%s = malloc(sizeof(*(to)->%s));\n",
deco.field_name, deco.field_name);