+typedef struct decl_union {
+ PSI_Token *token;
+ char *name;
+ decl_args *args;
+ size_t size;
+ size_t align;
+} decl_union;
+
+static inline decl_union *init_decl_union(const char *name, decl_args *args) {
+ decl_union *u = calloc(1, sizeof(*u));
+ u->name = strdup(name);
+ u->args = args;
+ return u;
+}
+
+static inline void free_decl_union(decl_union *u) {
+ if (u->token) {
+ free(u->token);
+ }
+ if (u->args) {
+ free_decl_args(u->args);
+ }
+ free(u->name);
+ free(u);
+}
+
+typedef struct decl_unions {
+ decl_union **list;
+ size_t count;
+} decl_unions;
+
+static inline decl_unions *add_decl_union(decl_unions *uu, decl_union *u) {
+ if (!uu) {
+ uu = calloc(1, sizeof(*uu));
+ }
+ uu->list = realloc(uu->list, ++uu->count * sizeof(*uu->list));
+ uu->list[uu->count-1] = u;
+ return uu;
+}
+
+static inline void free_decl_unions(decl_unions *uu) {
+ size_t i;
+
+ for (i = 0; i < uu->count; ++i) {
+ free_decl_union(uu->list[i]);
+ }
+ free(uu->list);
+ free(uu);
+}
+