+ g_hash_table_destroy(scope->enum_declarations);
+ g_hash_table_destroy(scope->variant_declarations);
+ g_hash_table_destroy(scope->struct_declarations);
+ g_hash_table_destroy(scope->typedef_declarations);
+ g_free(scope);
+}
+
+static
+struct declaration_struct *lookup_struct_declaration_scope(GQuark struct_name,
+ struct declaration_scope *scope)
+{
+ return g_hash_table_lookup(scope->struct_declarations,
+ (gconstpointer) (unsigned long) struct_name);
+}
+
+struct declaration_struct *lookup_struct_declaration(GQuark struct_name,
+ struct declaration_scope *scope)
+{
+ struct declaration_struct *declaration;
+
+ while (scope) {
+ declaration = lookup_struct_declaration_scope(struct_name, scope);
+ if (declaration)
+ return declaration;
+ scope = scope->parent_scope;
+ }
+ return NULL;
+}
+
+int register_struct_declaration(GQuark struct_name,
+ struct declaration_struct *struct_declaration,
+ struct declaration_scope *scope)
+{
+ GQuark prefix_name;
+ int ret;
+
+ if (!struct_name)
+ return -EPERM;
+
+ /* Only lookup in local scope */
+ if (lookup_struct_declaration_scope(struct_name, scope))
+ return -EEXIST;
+
+ g_hash_table_insert(scope->struct_declarations,
+ (gpointer) (unsigned long) struct_name,
+ struct_declaration);
+ declaration_ref(&struct_declaration->p);
+
+ /* Also add in typedef/typealias scopes */
+ prefix_name = prefix_quark("struct ", struct_name);
+ ret = register_declaration(prefix_name, &struct_declaration->p, scope);
+ assert(!ret);
+ return 0;
+}
+
+static
+struct declaration_untagged_variant *
+ lookup_variant_declaration_scope(GQuark variant_name,
+ struct declaration_scope *scope)
+{
+ return g_hash_table_lookup(scope->variant_declarations,
+ (gconstpointer) (unsigned long) variant_name);
+}
+
+struct declaration_untagged_variant *
+ lookup_variant_declaration(GQuark variant_name,
+ struct declaration_scope *scope)
+{
+ struct declaration_untagged_variant *declaration;
+
+ while (scope) {
+ declaration = lookup_variant_declaration_scope(variant_name, scope);
+ if (declaration)
+ return declaration;
+ scope = scope->parent_scope;
+ }
+ return NULL;
+}
+
+int register_variant_declaration(GQuark variant_name,
+ struct declaration_untagged_variant *untagged_variant_declaration,
+ struct declaration_scope *scope)
+{
+ GQuark prefix_name;
+ int ret;
+
+ if (!variant_name)
+ return -EPERM;
+
+ /* Only lookup in local scope */
+ if (lookup_variant_declaration_scope(variant_name, scope))
+ return -EEXIST;
+
+ g_hash_table_insert(scope->variant_declarations,
+ (gpointer) (unsigned long) variant_name,
+ untagged_variant_declaration);
+ declaration_ref(&untagged_variant_declaration->p);
+
+ /* Also add in typedef/typealias scopes */
+ prefix_name = prefix_quark("variant ", variant_name);
+ ret = register_declaration(prefix_name,
+ &untagged_variant_declaration->p, scope);
+ assert(!ret);
+ return 0;
+}
+
+static
+struct declaration_enum *
+ lookup_enum_declaration_scope(GQuark enum_name,
+ struct declaration_scope *scope)
+{
+ return g_hash_table_lookup(scope->enum_declarations,
+ (gconstpointer) (unsigned long) enum_name);
+}
+
+struct declaration_enum *
+ lookup_enum_declaration(GQuark enum_name,
+ struct declaration_scope *scope)
+{
+ struct declaration_enum *declaration;
+
+ while (scope) {
+ declaration = lookup_enum_declaration_scope(enum_name, scope);
+ if (declaration)
+ return declaration;
+ scope = scope->parent_scope;
+ }
+ return NULL;
+}
+
+int register_enum_declaration(GQuark enum_name,
+ struct declaration_enum *enum_declaration,
+ struct declaration_scope *scope)
+{
+ GQuark prefix_name;
+ int ret;
+
+ if (!enum_name)
+ return -EPERM;
+
+ /* Only lookup in local scope */
+ if (lookup_enum_declaration_scope(enum_name, scope))
+ return -EEXIST;
+
+ g_hash_table_insert(scope->enum_declarations,
+ (gpointer) (unsigned long) enum_name,
+ enum_declaration);
+ declaration_ref(&enum_declaration->p);
+
+ /* Also add in typedef/typealias scopes */
+ prefix_name = prefix_quark("enum ", enum_name);
+ ret = register_declaration(prefix_name, &enum_declaration->p, scope);
+ assert(!ret);
+ return 0;
+}
+
+static struct definition_scope *
+ _new_definition_scope(struct definition_scope *parent_scope,
+ int scope_path_len)
+{
+ struct definition_scope *scope = g_new(struct definition_scope, 1);
+
+ scope->definitions = g_hash_table_new_full(g_direct_hash,
+ g_direct_equal, NULL,
+ (GDestroyNotify) definition_unref);
+ scope->parent_scope = parent_scope;
+ scope->scope_path = g_array_sized_new(FALSE, TRUE, sizeof(GQuark),
+ scope_path_len);
+ g_array_set_size(scope->scope_path, scope_path_len);
+ return scope;
+}
+
+struct definition_scope *
+ new_definition_scope(struct definition_scope *parent_scope,
+ GQuark field_name)
+{
+ struct definition_scope *scope;
+ int scope_path_len = 1;
+
+ if (parent_scope)
+ scope_path_len += parent_scope->scope_path->len;
+ scope = _new_definition_scope(parent_scope, scope_path_len);
+ if (parent_scope)
+ memcpy(scope->scope_path, parent_scope->scope_path,
+ sizeof(GQuark) * (scope_path_len - 1));
+ g_array_index(scope->scope_path, GQuark, scope_path_len - 1) =
+ field_name;
+ return scope;
+}
+
+/*
+ * in: path (dot separated), out: q (GArray of GQuark)
+ */
+void append_scope_path(const char *path, GArray *q)
+{
+ const char *ptrbegin, *ptrend = path;
+ GQuark quark;
+
+ for (;;) {
+ char *str;
+ size_t len;
+
+ ptrbegin = ptrend;
+ ptrend = strchr(ptrbegin, '.');
+ if (!ptrend)
+ break;
+ len = ptrend - ptrbegin;
+ /* Don't accept two consecutive dots */
+ assert(len != 0);
+ str = g_new(char, len + 1); /* include \0 */
+ memcpy(str, ptrbegin, len);
+ str[len] = '\0';
+ quark = g_quark_from_string(str);
+ g_array_append_val(q, quark);
+ g_free(str);
+ ptrend++; /* skip current dot */
+ }
+ /* last. Check for trailing dot (and discard). */
+ if (ptrbegin[0] != '\0') {
+ quark = g_quark_from_string(ptrbegin);
+ g_array_append_val(q, quark);
+ }
+}
+
+void set_dynamic_definition_scope(struct definition *definition,
+ struct definition_scope *scope,
+ const char *root_name)
+{
+ g_array_set_size(scope->scope_path, 0);
+ append_scope_path(root_name, scope->scope_path);
+ /*
+ * Use INT_MAX order to ensure that all fields of the parent
+ * scope are seen as being prior to this scope.
+ */
+ definition->index = INT_MAX;
+}
+
+void free_definition_scope(struct definition_scope *scope)
+{
+ g_array_free(scope->scope_path, TRUE);
+ g_hash_table_destroy(scope->definitions);