io struct generation debugging ongoing
[babeltrace.git] / formats / ctf / metadata / ctf-parser.y
index 6f0efe25e26063a8818a57199bc856b86d3c9913..437242bd52657798647005180427a1d9dd18d6a8 100644 (file)
 #include <string.h>
 #include <stdlib.h>
 #include <assert.h>
-#include <helpers/list.h>
 #include <glib.h>
 #include <errno.h>
+#include <inttypes.h>
+#include <babeltrace/list.h>
 #include "ctf-scanner.h"
 #include "ctf-parser.h"
 #include "ctf-ast.h"
 
+/*
+ * TODO: support enum, variant and struct declarations in scopes.
+ */
+
+/* Join two lists, put "add" at the end of "head".  */
+static inline void
+_cds_list_splice_tail (struct cds_list_head *add, struct cds_list_head *head)
+{
+       /* Do nothing if the list which gets added is empty.  */
+       if (add != add->next) {
+               add->next->prev = head->prev;
+               add->prev->next = head;
+               head->prev->next = add->next;
+               head->prev = add->prev;
+       }
+}
+
 #define printf_dbg(fmt, args...)       fprintf(stderr, "%s: " fmt, __func__, ## args)
 
 int yyparse(struct ctf_scanner *scanner);
@@ -45,6 +63,40 @@ struct gc_string {
        char s[];
 };
 
+static const char *node_type_to_str[] = {
+       [ NODE_UNKNOWN ] = "NODE_UNKNOWN",
+       [ NODE_ROOT ] = "NODE_ROOT",
+       [ NODE_EVENT ] = "NODE_EVENT",
+       [ NODE_STREAM ] = "NODE_STREAM",
+       [ NODE_TRACE ] = "NODE_TRACE",
+       [ NODE_CTF_EXPRESSION ] = "NODE_CTF_EXPRESSION",
+       [ NODE_UNARY_EXPRESSION ] = "NODE_UNARY_EXPRESSION",
+       [ NODE_TYPEDEF ] = "NODE_TYPEDEF",
+       [ NODE_TYPEALIAS_TARGET ] = "NODE_TYPEALIAS_TARGET",
+       [ NODE_TYPEALIAS_ALIAS ] = "NODE_TYPEALIAS_ALIAS",
+       [ NODE_TYPEALIAS ] = "NODE_TYPEALIAS",
+       [ NODE_TYPE_SPECIFIER ] = "NODE_TYPE_SPECIFIER",
+       [ NODE_TYPE_SPECIFIER_LIST ] = "NODE_TYPE_SPECIFIER_LIST",
+       [ NODE_POINTER ] = "NODE_POINTER",
+       [ NODE_TYPE_DECLARATOR ] = "NODE_TYPE_DECLARATOR",
+       [ NODE_FLOATING_POINT ] = "NODE_FLOATING_POINT",
+       [ NODE_INTEGER ] = "NODE_INTEGER",
+       [ NODE_STRING ] = "NODE_STRING",
+       [ NODE_ENUMERATOR ] = "NODE_ENUMERATOR",
+       [ NODE_ENUM ] = "NODE_ENUM",
+       [ NODE_STRUCT_OR_VARIANT_DECLARATION ] = "NODE_STRUCT_OR_VARIANT_DECLARATION",
+       [ NODE_VARIANT ] = "NODE_VARIANT",
+       [ NODE_STRUCT ] = "NODE_STRUCT",
+};
+
+const char *node_type(struct ctf_node *node)
+{
+       if (node->type < NR_NODE_TYPES)
+               return node_type_to_str[node->type];
+       else
+               return NULL;
+}
+
 static struct gc_string *gc_string_alloc(struct ctf_scanner *scanner,
                                         size_t len)
 {
@@ -140,7 +192,7 @@ static int lookup_type(struct ctf_scanner_scope *s, const char *id)
 {
        int ret;
 
-       ret = (int) g_hash_table_lookup(s->types, id);
+       ret = (int) (long) g_hash_table_lookup(s->types, id);
        printf_dbg("lookup %p %s %d\n", s, id, ret);
        return ret;
 }
@@ -179,8 +231,9 @@ static struct ctf_node *make_node(struct ctf_scanner *scanner,
                return NULL;
        memset(node, 0, sizeof(*node));
        node->type = type;
-       CDS_INIT_LIST_HEAD(&node->siblings);
+       CDS_INIT_LIST_HEAD(&node->tmp_head);
        cds_list_add(&node->gc, &ast->allocated_nodes);
+       cds_list_add(&node->siblings, &node->tmp_head);
 
        switch (type) {
        case NODE_ROOT:
@@ -198,20 +251,19 @@ static struct ctf_node *make_node(struct ctf_scanner *scanner,
                break;
 
        case NODE_CTF_EXPRESSION:
+               CDS_INIT_LIST_HEAD(&node->u.ctf_expression.left);
+               CDS_INIT_LIST_HEAD(&node->u.ctf_expression.right);
                break;
        case NODE_UNARY_EXPRESSION:
                break;
 
        case NODE_TYPEDEF:
-               CDS_INIT_LIST_HEAD(&node->u._typedef.declaration_specifier);
                CDS_INIT_LIST_HEAD(&node->u._typedef.type_declarators);
                break;
        case NODE_TYPEALIAS_TARGET:
-               CDS_INIT_LIST_HEAD(&node->u.typealias_target.declaration_specifier);
                CDS_INIT_LIST_HEAD(&node->u.typealias_target.type_declarators);
                break;
        case NODE_TYPEALIAS_ALIAS:
-               CDS_INIT_LIST_HEAD(&node->u.typealias_alias.declaration_specifier);
                CDS_INIT_LIST_HEAD(&node->u.typealias_alias.type_declarators);
                break;
        case NODE_TYPEALIAS:
@@ -219,6 +271,9 @@ static struct ctf_node *make_node(struct ctf_scanner *scanner,
 
        case NODE_TYPE_SPECIFIER:
                break;
+       case NODE_TYPE_SPECIFIER_LIST:
+               CDS_INIT_LIST_HEAD(&node->u.type_specifier_list.head);
+               break;
        case NODE_POINTER:
                break;
        case NODE_TYPE_DECLARATOR:
@@ -235,12 +290,12 @@ static struct ctf_node *make_node(struct ctf_scanner *scanner,
                CDS_INIT_LIST_HEAD(&node->u.string.expressions);
                break;
        case NODE_ENUMERATOR:
+               CDS_INIT_LIST_HEAD(&node->u.enumerator.values);
                break;
        case NODE_ENUM:
                CDS_INIT_LIST_HEAD(&node->u._enum.enumerator_list);
                break;
        case NODE_STRUCT_OR_VARIANT_DECLARATION:
-               CDS_INIT_LIST_HEAD(&node->u.struct_or_variant_declaration.declaration_specifier);
                CDS_INIT_LIST_HEAD(&node->u.struct_or_variant_declaration.type_declarators);
                break;
        case NODE_VARIANT:
@@ -265,22 +320,22 @@ static int reparent_ctf_expression(struct ctf_node *node,
 {
        switch (parent->type) {
        case NODE_EVENT:
-               cds_list_add(&node->siblings, &parent->u.event.declaration_list);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.event.declaration_list);
                break;
        case NODE_STREAM:
-               cds_list_add(&node->siblings, &parent->u.stream.declaration_list);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.stream.declaration_list);
                break;
        case NODE_TRACE:
-               cds_list_add(&node->siblings, &parent->u.trace.declaration_list);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.trace.declaration_list);
                break;
        case NODE_FLOATING_POINT:
-               cds_list_add(&node->siblings, &parent->u.floating_point.expressions);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.floating_point.expressions);
                break;
        case NODE_INTEGER:
-               cds_list_add(&node->siblings, &parent->u.integer.expressions);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.integer.expressions);
                break;
        case NODE_STRING:
-               cds_list_add(&node->siblings, &parent->u.string.expressions);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.string.expressions);
                break;
 
        case NODE_ROOT:
@@ -290,6 +345,7 @@ static int reparent_ctf_expression(struct ctf_node *node,
        case NODE_TYPEALIAS_ALIAS:
        case NODE_TYPEALIAS:
        case NODE_TYPE_SPECIFIER:
+       case NODE_TYPE_SPECIFIER_LIST:
        case NODE_POINTER:
        case NODE_TYPE_DECLARATOR:
        case NODE_ENUMERATOR:
@@ -313,22 +369,22 @@ static int reparent_typedef(struct ctf_node *node, struct ctf_node *parent)
 {
        switch (parent->type) {
        case NODE_ROOT:
-               cds_list_add(&node->siblings, &parent->u.root._typedef);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.root.declaration_list);
                break;
        case NODE_EVENT:
-               cds_list_add(&node->siblings, &parent->u.event.declaration_list);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.event.declaration_list);
                break;
        case NODE_STREAM:
-               cds_list_add(&node->siblings, &parent->u.stream.declaration_list);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.stream.declaration_list);
                break;
        case NODE_TRACE:
-               cds_list_add(&node->siblings, &parent->u.trace.declaration_list);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.trace.declaration_list);
                break;
        case NODE_VARIANT:
-               cds_list_add(&node->siblings, &parent->u.variant.declaration_list);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.variant.declaration_list);
                break;
        case NODE_STRUCT:
-               cds_list_add(&node->siblings, &parent->u._struct.declaration_list);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u._struct.declaration_list);
                break;
 
        case NODE_FLOATING_POINT:
@@ -340,6 +396,7 @@ static int reparent_typedef(struct ctf_node *node, struct ctf_node *parent)
        case NODE_TYPEALIAS_ALIAS:
        case NODE_TYPEALIAS:
        case NODE_TYPE_SPECIFIER:
+       case NODE_TYPE_SPECIFIER_LIST:
        case NODE_POINTER:
        case NODE_TYPE_DECLARATOR:
        case NODE_ENUMERATOR:
@@ -361,22 +418,22 @@ static int reparent_typealias(struct ctf_node *node, struct ctf_node *parent)
 {
        switch (parent->type) {
        case NODE_ROOT:
-               cds_list_add(&node->siblings, &parent->u.root.typealias);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.root.declaration_list);
                break;
        case NODE_EVENT:
-               cds_list_add(&node->siblings, &parent->u.event.declaration_list);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.event.declaration_list);
                break;
        case NODE_STREAM:
-               cds_list_add(&node->siblings, &parent->u.stream.declaration_list);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.stream.declaration_list);
                break;
        case NODE_TRACE:
-               cds_list_add(&node->siblings, &parent->u.trace.declaration_list);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.trace.declaration_list);
                break;
        case NODE_VARIANT:
-               cds_list_add(&node->siblings, &parent->u.variant.declaration_list);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.variant.declaration_list);
                break;
        case NODE_STRUCT:
-               cds_list_add(&node->siblings, &parent->u._struct.declaration_list);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u._struct.declaration_list);
                break;
 
        case NODE_FLOATING_POINT:
@@ -388,6 +445,7 @@ static int reparent_typealias(struct ctf_node *node, struct ctf_node *parent)
        case NODE_TYPEALIAS_ALIAS:
        case NODE_TYPEALIAS:
        case NODE_TYPE_SPECIFIER:
+       case NODE_TYPE_SPECIFIER_LIST:
        case NODE_POINTER:
        case NODE_TYPE_DECLARATOR:
        case NODE_ENUMERATOR:
@@ -407,34 +465,73 @@ static int reparent_typealias(struct ctf_node *node, struct ctf_node *parent)
 
 static int reparent_type_specifier(struct ctf_node *node,
                                   struct ctf_node *parent)
+{
+       switch (parent->type) {
+       case NODE_TYPE_SPECIFIER_LIST:
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.type_specifier_list.head);
+               break;
+
+       case NODE_TYPE_SPECIFIER:
+       case NODE_EVENT:
+       case NODE_STREAM:
+       case NODE_TRACE:
+       case NODE_VARIANT:
+       case NODE_STRUCT:
+       case NODE_TYPEDEF:
+       case NODE_TYPEALIAS_TARGET:
+       case NODE_TYPEALIAS_ALIAS:
+       case NODE_TYPE_DECLARATOR:
+       case NODE_ENUM:
+       case NODE_STRUCT_OR_VARIANT_DECLARATION:
+       case NODE_TYPEALIAS:
+       case NODE_FLOATING_POINT:
+       case NODE_INTEGER:
+       case NODE_STRING:
+       case NODE_CTF_EXPRESSION:
+       case NODE_POINTER:
+       case NODE_ENUMERATOR:
+       case NODE_UNARY_EXPRESSION:
+               return -EPERM;
+
+       case NODE_UNKNOWN:
+       default:
+               fprintf(stderr, "[error] %s: unknown node type %d\n", __func__,
+                       (int) parent->type);
+               return -EINVAL;
+       }
+       return 0;
+}
+
+static int reparent_type_specifier_list(struct ctf_node *node,
+                                       struct ctf_node *parent)
 {
        switch (parent->type) {
        case NODE_ROOT:
-               cds_list_add(&node->siblings, &parent->u.root.declaration_specifier);
+               cds_list_add_tail(&node->siblings, &parent->u.root.declaration_list);
                break;
        case NODE_EVENT:
-               cds_list_add(&node->siblings, &parent->u.event.declaration_list);
+               cds_list_add_tail(&node->siblings, &parent->u.event.declaration_list);
                break;
        case NODE_STREAM:
-               cds_list_add(&node->siblings, &parent->u.stream.declaration_list);
+               cds_list_add_tail(&node->siblings, &parent->u.stream.declaration_list);
                break;
        case NODE_TRACE:
-               cds_list_add(&node->siblings, &parent->u.trace.declaration_list);
+               cds_list_add_tail(&node->siblings, &parent->u.trace.declaration_list);
                break;
        case NODE_VARIANT:
-               cds_list_add(&node->siblings, &parent->u.variant.declaration_list);
+               cds_list_add_tail(&node->siblings, &parent->u.variant.declaration_list);
                break;
        case NODE_STRUCT:
-               cds_list_add(&node->siblings, &parent->u._struct.declaration_list);
+               cds_list_add_tail(&node->siblings, &parent->u._struct.declaration_list);
                break;
        case NODE_TYPEDEF:
-               cds_list_add(&node->siblings, &parent->u._typedef.declaration_specifier);
+               parent->u._typedef.type_specifier_list = node;
                break;
        case NODE_TYPEALIAS_TARGET:
-               cds_list_add(&node->siblings, &parent->u.typealias_target.declaration_specifier);
+               parent->u.typealias_target.type_specifier_list = node;
                break;
        case NODE_TYPEALIAS_ALIAS:
-               cds_list_add(&node->siblings, &parent->u.typealias_alias.declaration_specifier);
+               parent->u.typealias_alias.type_specifier_list = node;
                break;
        case NODE_TYPE_DECLARATOR:
                parent->u.type_declarator.type = TYPEDEC_NESTED;
@@ -444,14 +541,14 @@ static int reparent_type_specifier(struct ctf_node *node,
                parent->u._enum.container_type = node;
                break;
        case NODE_STRUCT_OR_VARIANT_DECLARATION:
-               cds_list_add(&node->siblings, &parent->u.struct_or_variant_declaration.declaration_specifier);
+               parent->u.struct_or_variant_declaration.type_specifier_list = node;
                break;
+       case NODE_TYPE_SPECIFIER:
        case NODE_TYPEALIAS:
        case NODE_FLOATING_POINT:
        case NODE_INTEGER:
        case NODE_STRING:
        case NODE_CTF_EXPRESSION:
-       case NODE_TYPE_SPECIFIER:
        case NODE_POINTER:
        case NODE_ENUMERATOR:
        case NODE_UNARY_EXPRESSION:
@@ -475,16 +572,16 @@ static int reparent_type_declarator(struct ctf_node *node,
                parent->u.type_declarator.u.nested.type_declarator = node;
                break;
        case NODE_STRUCT_OR_VARIANT_DECLARATION:
-               cds_list_add(&node->siblings, &parent->u.struct_or_variant_declaration.type_declarators);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.struct_or_variant_declaration.type_declarators);
                break;
        case NODE_TYPEDEF:
-               cds_list_add(&node->siblings, &parent->u._typedef.type_declarators);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u._typedef.type_declarators);
                break;
        case NODE_TYPEALIAS_TARGET:
-               cds_list_add(&node->siblings, &parent->u.typealias_target.type_declarators);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.typealias_target.type_declarators);
                break;
        case NODE_TYPEALIAS_ALIAS:
-               cds_list_add(&node->siblings, &parent->u.typealias_alias.type_declarators);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.typealias_alias.type_declarators);
                break;
 
        case NODE_ROOT:
@@ -500,6 +597,7 @@ static int reparent_type_declarator(struct ctf_node *node,
        case NODE_STRING:
        case NODE_CTF_EXPRESSION:
        case NODE_TYPE_SPECIFIER:
+       case NODE_TYPE_SPECIFIER_LIST:
        case NODE_POINTER:
        case NODE_ENUMERATOR:
        case NODE_UNARY_EXPRESSION:
@@ -515,21 +613,18 @@ static int reparent_type_declarator(struct ctf_node *node,
 }
 
 /*
- * reparent node
+ * set_parent_node
  *
- * Relink node to new parent. Returns 0 on success, -EPERM if it is not
- * permitted to create the link declared by the input, -ENOENT if node or parent
- * is NULL, -EINVAL if there is an internal structure problem.
+ * Link node to parent. Returns 0 on success, -EPERM if it is not permitted to
+ * create the link declared by the input, -ENOENT if node or parent is NULL,
+ * -EINVAL if there is an internal structure problem.
  */
-static int reparent_node(struct ctf_node *node,
+static int set_parent_node(struct ctf_node *node,
                         struct ctf_node *parent)
 {
        if (!node || !parent)
                return -ENOENT;
 
-       /* Unlink from old parent */
-       cds_list_del(&node->siblings);
-
        /* Note: Linking to parent will be done only by an external visitor */
 
        switch (node->type) {
@@ -538,22 +633,25 @@ static int reparent_node(struct ctf_node *node,
                return -EINVAL;
 
        case NODE_EVENT:
-               if (parent->type == NODE_ROOT)
-                       cds_list_add_tail(&node->siblings, &parent->u.root.event);
-               else
+               if (parent->type == NODE_ROOT) {
+                       _cds_list_splice_tail(&node->tmp_head, &parent->u.root.event);
+               } else {
                        return -EPERM;
+               }
                break;
        case NODE_STREAM:
-               if (parent->type == NODE_ROOT)
-                       cds_list_add_tail(&node->siblings, &parent->u.root.stream);
-               else
+               if (parent->type == NODE_ROOT) {
+                       _cds_list_splice_tail(&node->tmp_head, &parent->u.root.stream);
+               } else {
                        return -EPERM;
+               }
                break;
        case NODE_TRACE:
-               if (parent->type == NODE_ROOT)
-                       cds_list_add_tail(&node->siblings, &parent->u.root.trace);
-               else
+               if (parent->type == NODE_ROOT) {
+                       _cds_list_splice_tail(&node->tmp_head, &parent->u.root.trace);
+               } else {
                        return -EPERM;
+               }
                break;
 
        case NODE_CTF_EXPRESSION:
@@ -581,36 +679,42 @@ static int reparent_node(struct ctf_node *node,
                return reparent_typealias(node, parent);
 
        case NODE_POINTER:
-               if (parent->type == NODE_TYPE_DECLARATOR)
-                       cds_list_add_tail(&node->siblings, &parent->u.type_declarator.pointers);
-               else
+               if (parent->type == NODE_TYPE_DECLARATOR) {
+                       _cds_list_splice_tail(&node->tmp_head, &parent->u.type_declarator.pointers);
+               else
                        return -EPERM;
                break;
        case NODE_TYPE_DECLARATOR:
                return reparent_type_declarator(node, parent);
 
+       case NODE_TYPE_SPECIFIER_LIST:
+               return reparent_type_specifier_list(node, parent);
+
        case NODE_TYPE_SPECIFIER:
+               return reparent_type_specifier(node, parent);
+
        case NODE_FLOATING_POINT:
        case NODE_INTEGER:
        case NODE_STRING:
        case NODE_ENUM:
        case NODE_VARIANT:
        case NODE_STRUCT:
-               return reparent_type_specifier(node, parent);
+               return -EINVAL; /* Dealt with internally within grammar */
 
        case NODE_ENUMERATOR:
-               if (parent->type == NODE_ENUM)
-                       cds_list_add_tail(&node->siblings, &parent->u._enum.enumerator_list);
-               else
+               if (parent->type == NODE_ENUM) {
+                       _cds_list_splice_tail(&node->tmp_head, &parent->u._enum.enumerator_list);
+               } else {
                        return -EPERM;
+               }
                break;
        case NODE_STRUCT_OR_VARIANT_DECLARATION:
                switch (parent->type) {
                case NODE_STRUCT:
-                       cds_list_add_tail(&node->siblings, &parent->u.variant.declaration_list);
+                       _cds_list_splice_tail(&node->tmp_head, &parent->u._struct.declaration_list);
                        break;
                case NODE_VARIANT:
-                       cds_list_add_tail(&node->siblings, &parent->u._struct.declaration_list);
+                       _cds_list_splice_tail(&node->tmp_head, &parent->u.variant.declaration_list);
                        break;
                default:
                        return -EINVAL;
@@ -660,10 +764,8 @@ static struct ctf_ast *ctf_ast_alloc(void)
        memset(ast, 0, sizeof(*ast));
        CDS_INIT_LIST_HEAD(&ast->allocated_nodes);
        ast->root.type = NODE_ROOT;
-       CDS_INIT_LIST_HEAD(&ast->root.siblings);
-       CDS_INIT_LIST_HEAD(&ast->root.u.root._typedef);
-       CDS_INIT_LIST_HEAD(&ast->root.u.root.typealias);
-       CDS_INIT_LIST_HEAD(&ast->root.u.root.declaration_specifier);
+       CDS_INIT_LIST_HEAD(&ast->root.tmp_head);
+       CDS_INIT_LIST_HEAD(&ast->root.u.root.declaration_list);
        CDS_INIT_LIST_HEAD(&ast->root.u.root.trace);
        CDS_INIT_LIST_HEAD(&ast->root.u.root.stream);
        CDS_INIT_LIST_HEAD(&ast->root.u.root.event);
@@ -759,17 +861,16 @@ void ctf_scanner_free(struct ctf_scanner *scanner)
 %type <n> stream_declaration
 %type <n> trace_declaration
 %type <n> declaration_specifiers
+%type <n> alias_declaration_specifiers
 
 %type <n> type_declarator_list
-%type <n> abstract_type_declarator_list
 %type <n> type_specifier
 %type <n> struct_type_specifier
 %type <n> variant_type_specifier
-%type <n> type_specifier_or_integer_constant
+%type <n> declaration_specifiers_or_integer_constant
 %type <n> enum_type_specifier
 %type <n> struct_or_variant_declaration_list
 %type <n> struct_or_variant_declaration
-%type <n> specifier_qualifier_list
 %type <n> struct_or_variant_declarator_list
 %type <n> struct_or_variant_declarator
 %type <n> enumerator_list
@@ -777,12 +878,13 @@ void ctf_scanner_free(struct ctf_scanner *scanner)
 %type <n> abstract_declarator_list
 %type <n> abstract_declarator
 %type <n> direct_abstract_declarator
+%type <n> alias_abstract_declarator_list
+%type <n> alias_abstract_declarator
+%type <n> direct_alias_abstract_declarator
 %type <n> declarator
 %type <n> direct_declarator
 %type <n> type_declarator
 %type <n> direct_type_declarator
-%type <n> abstract_type_declarator
-%type <n> direct_abstract_type_declarator
 %type <n> pointer      
 %type <n> ctf_assignment_expression_list
 %type <n> ctf_assignment_expression
@@ -792,12 +894,12 @@ void ctf_scanner_free(struct ctf_scanner *scanner)
 file:
                declaration
                {
-                       if (reparent_node($1, &ctf_scanner_get_ast(scanner)->root))
+                       if (set_parent_node($1, &ctf_scanner_get_ast(scanner)->root))
                                reparent_error(scanner, "error reparenting to root");
                }
        |       file declaration
                {
-                       if (reparent_node($2, &ctf_scanner_get_ast(scanner)->root))
+                       if (set_parent_node($2, &ctf_scanner_get_ast(scanner)->root))
                                reparent_error(scanner, "error reparenting to root");
                }
        ;
@@ -825,6 +927,8 @@ keywords:
                {       $$ = yylval.gs;         }
        |       _COMPLEX
                {       $$ = yylval.gs;         }
+       |       _IMAGINARY
+               {       $$ = yylval.gs;         }
        |       FLOATING_POINT
                {       $$ = yylval.gs;         }
        |       INTEGER
@@ -900,7 +1004,6 @@ postfix_expression:
                        $$->u.unary_expression.type = UNARY_STRING;
                        $$->u.unary_expression.u.string = yylval.gs->s;
                }
-
        |       keywords
                {
                        $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
@@ -912,21 +1015,21 @@ postfix_expression:
                {
                        $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
                        $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
-                       sscanf(yylval.gs->s, "%llu",
+                       sscanf(yylval.gs->s, "%" PRIu64,
                               &$$->u.unary_expression.u.unsigned_constant);
                }
        |       OCTAL_CONSTANT
                {
                        $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
                        $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
-                       sscanf(yylval.gs->s, "0%llo",
+                       sscanf(yylval.gs->s, "0%" PRIo64,
                               &$$->u.unary_expression.u.unsigned_constant);
                }
        |       HEXADECIMAL_CONSTANT
                {
                        $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
                        $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
-                       sscanf(yylval.gs->s, "0x%llx",
+                       sscanf(yylval.gs->s, "0x%" PRIx64,
                               &$$->u.unary_expression.u.unsigned_constant);
                }
        |       STRING_LITERAL_START DQUOTE
@@ -949,14 +1052,17 @@ postfix_expression:
                }
        |       LPAREN unary_expression RPAREN
                {
-                       $$ = $2;
+                       $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
+                       $$->u.unary_expression.type = UNARY_NESTED;
+                       $$->u.unary_expression.u.nested_exp = $2;
                }
        |       postfix_expression LSBRAC unary_expression RSBRAC
                {
                        $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
                        $$->u.unary_expression.type = UNARY_SBRAC;
                        $$->u.unary_expression.u.sbrac_exp = $3;
-                       cds_list_add(&($$)->siblings, &($1)->siblings);
+                       cds_list_splice(&($1)->tmp_head, &($$)->tmp_head);
+                       cds_list_add_tail(&($$)->siblings, &($$)->tmp_head);
                }
        |       postfix_expression DOT IDENTIFIER
                {
@@ -964,7 +1070,8 @@ postfix_expression:
                        $$->u.unary_expression.type = UNARY_STRING;
                        $$->u.unary_expression.u.string = yylval.gs->s;
                        $$->u.unary_expression.link = UNARY_DOTLINK;
-                       cds_list_add(&($$)->siblings, &($1)->siblings);
+                       cds_list_splice(&($1)->tmp_head, &($$)->tmp_head);
+                       cds_list_add_tail(&($$)->siblings, &($$)->tmp_head);
                }
        |       postfix_expression DOT ID_TYPE
                {
@@ -972,7 +1079,8 @@ postfix_expression:
                        $$->u.unary_expression.type = UNARY_STRING;
                        $$->u.unary_expression.u.string = yylval.gs->s;
                        $$->u.unary_expression.link = UNARY_DOTLINK;
-                       cds_list_add(&($$)->siblings, &($1)->siblings);
+                       cds_list_splice(&($1)->tmp_head, &($$)->tmp_head);
+                       cds_list_add_tail(&($$)->siblings, &($$)->tmp_head);
                }
        |       postfix_expression RARROW IDENTIFIER
                {
@@ -980,7 +1088,8 @@ postfix_expression:
                        $$->u.unary_expression.type = UNARY_STRING;
                        $$->u.unary_expression.u.string = yylval.gs->s;
                        $$->u.unary_expression.link = UNARY_ARROWLINK;
-                       cds_list_add(&($$)->siblings, &($1)->siblings);
+                       cds_list_splice(&($1)->tmp_head, &($$)->tmp_head);
+                       cds_list_add_tail(&($$)->siblings, &($$)->tmp_head);
                }
        |       postfix_expression RARROW ID_TYPE
                {
@@ -988,7 +1097,8 @@ postfix_expression:
                        $$->u.unary_expression.type = UNARY_STRING;
                        $$->u.unary_expression.u.string = yylval.gs->s;
                        $$->u.unary_expression.link = UNARY_ARROWLINK;
-                       cds_list_add(&($$)->siblings, &($1)->siblings);
+                       cds_list_splice(&($1)->tmp_head, &($$)->tmp_head);
+                       cds_list_add_tail(&($$)->siblings, &($$)->tmp_head);
                }
        ;
 
@@ -1019,7 +1129,8 @@ unary_expression_or_range:
                unary_expression DOTDOTDOT unary_expression
                {
                        $$ = $1;
-                       cds_list_add(&($3)->siblings, &($$)->siblings);
+                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->tmp_head);
+                       $3->u.unary_expression.link = UNARY_DOTDOTDOT;
                }
        |       unary_expression
                {       $$ = $1;                }
@@ -1038,51 +1149,64 @@ declaration:
                {       $$ = $1;        }
        |       declaration_specifiers TYPEDEF declaration_specifiers type_declarator_list SEMICOLON
                {
+                       struct ctf_node *list;
+
                        $$ = make_node(scanner, NODE_TYPEDEF);
-                       cds_list_add(&($3)->siblings, &($$)->u._typedef.declaration_specifier);
-                       cds_list_add(&($1)->siblings, &($$)->u._typedef.declaration_specifier);
-                       cds_list_add(&($4)->siblings, &($$)->u._typedef.type_declarators);
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->u._typedef.type_specifier_list = list;
+                       _cds_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
+                       _cds_list_splice_tail(&($3)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
+                       _cds_list_splice_tail(&($4)->tmp_head, &($$)->u._typedef.type_declarators);
                }
        |       TYPEDEF declaration_specifiers type_declarator_list SEMICOLON
                {
+                       struct ctf_node *list;
+
                        $$ = make_node(scanner, NODE_TYPEDEF);
-                       cds_list_add(&($2)->siblings, &($$)->u._typedef.declaration_specifier);
-                       cds_list_add(&($3)->siblings, &($$)->u._typedef.type_declarators);
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->u._typedef.type_specifier_list = list;
+                       _cds_list_splice_tail(&($2)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
+                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
                }
        |       declaration_specifiers TYPEDEF type_declarator_list SEMICOLON
                {
+                       struct ctf_node *list;
+
                        $$ = make_node(scanner, NODE_TYPEDEF);
-                       cds_list_add(&($1)->siblings, &($$)->u._typedef.declaration_specifier);
-                       cds_list_add(&($3)->siblings, &($$)->u._typedef.type_declarators);
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->u._typedef.type_specifier_list = list;
+                       _cds_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
+                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
                }
-       |       TYPEALIAS declaration_specifiers abstract_declarator_list COLON declaration_specifiers abstract_type_declarator_list SEMICOLON
-               {
-                       $$ = make_node(scanner, NODE_TYPEALIAS);
-                       $$->u.typealias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
-                       $$->u.typealias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
-                       cds_list_add(&($2)->siblings, &($$)->u.typealias.target->u.typealias_target.declaration_specifier);
-                       cds_list_add(&($3)->siblings, &($$)->u.typealias.target->u.typealias_target.type_declarators);
-                       cds_list_add(&($5)->siblings, &($$)->u.typealias.alias->u.typealias_alias.declaration_specifier);
-                       cds_list_add(&($6)->siblings, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
-               }
-       |       TYPEALIAS declaration_specifiers abstract_declarator_list COLON type_declarator_list SEMICOLON
+       |       TYPEALIAS declaration_specifiers abstract_declarator_list COLON alias_declaration_specifiers alias_abstract_declarator_list SEMICOLON
                {
+                       struct ctf_node *list;
+
                        $$ = make_node(scanner, NODE_TYPEALIAS);
                        $$->u.typealias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
                        $$->u.typealias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
-                       cds_list_add(&($2)->siblings, &($$)->u.typealias.target->u.typealias_target.declaration_specifier);
-                       cds_list_add(&($3)->siblings, &($$)->u.typealias.target->u.typealias_target.type_declarators);
-                       cds_list_add(&($5)->siblings, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
+
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->u.typealias.target->u.typealias_target.type_specifier_list = list;
+                       _cds_list_splice_tail(&($2)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
+                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u.typealias.target->u.typealias_target.type_declarators);
+
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->u.typealias.alias->u.typealias_alias.type_specifier_list = list;
+                       _cds_list_splice_tail(&($5)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
+                       _cds_list_splice_tail(&($6)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
                }
        ;
 
 event_declaration:
                event_declaration_begin event_declaration_end
-               {       $$ = make_node(scanner, NODE_EVENT);    }
+               {
+                       $$ = make_node(scanner, NODE_EVENT);
+               }
        |       event_declaration_begin ctf_assignment_expression_list event_declaration_end
                {
                        $$ = make_node(scanner, NODE_EVENT);
-                       if (reparent_node($2, $$))
+                       if (set_parent_node($2, $$))
                                reparent_error(scanner, "event_declaration");
                }
        ;
@@ -1100,11 +1224,13 @@ event_declaration_end:
 
 stream_declaration:
                stream_declaration_begin stream_declaration_end
-               {       $$ = make_node(scanner, NODE_STREAM);   }
+               {
+                       $$ = make_node(scanner, NODE_STREAM);
+               }
        |       stream_declaration_begin ctf_assignment_expression_list stream_declaration_end
                {
                        $$ = make_node(scanner, NODE_STREAM);
-                       if (reparent_node($2, $$))
+                       if (set_parent_node($2, $$))
                                reparent_error(scanner, "stream_declaration");
                }
        ;
@@ -1122,11 +1248,13 @@ stream_declaration_end:
 
 trace_declaration:
                trace_declaration_begin trace_declaration_end
-               {       $$ = make_node(scanner, NODE_TRACE);    }
+               {
+                       $$ = make_node(scanner, NODE_TRACE);
+               }
        |       trace_declaration_begin ctf_assignment_expression_list trace_declaration_end
                {
                        $$ = make_node(scanner, NODE_TRACE);
-                       if (reparent_node($2, $$))
+                       if (set_parent_node($2, $$))
                                reparent_error(scanner, "trace_declaration");
                }
        ;
@@ -1144,24 +1272,34 @@ trace_declaration_end:
 declaration_specifiers:
                CONST
                {
-                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-                       $$->u.type_specifier.type = TYPESPEC_CONST;
+                       struct ctf_node *node;
+
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       node = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       node->u.type_specifier.type = TYPESPEC_CONST;
+                       cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
                }
        |       type_specifier
-               {       $$ = $1;                }
+               {
+                       struct ctf_node *node;
+
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       node = $1;
+                       cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
+               }
        |       declaration_specifiers CONST
                {
                        struct ctf_node *node;
 
+                       $$ = $1;
                        node = make_node(scanner, NODE_TYPE_SPECIFIER);
                        node->u.type_specifier.type = TYPESPEC_CONST;
-                       cds_list_add(&node->siblings, &($1)->siblings);
-                       $$ = $1;
+                       cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
                }
        |       declaration_specifiers type_specifier
                {
                        $$ = $1;
-                       cds_list_add(&($2)->siblings, &($1)->siblings);
+                       cds_list_add_tail(&($2)->siblings, &($$)->u.type_specifier_list.head);
                }
        ;
 
@@ -1171,17 +1309,7 @@ type_declarator_list:
        |       type_declarator_list COMMA type_declarator
                {
                        $$ = $1;
-                       cds_list_add(&($3)->siblings, &($$)->siblings);
-               }
-       ;
-
-abstract_type_declarator_list:
-               abstract_type_declarator
-               {       $$ = $1;        }
-       |       abstract_type_declarator_list COMMA abstract_type_declarator
-               {
-                       $$ = $1;
-                       cds_list_add(&($3)->siblings, &($$)->siblings);
+                       cds_list_add_tail(&($3)->siblings, &($$)->tmp_head);
                }
        ;
 
@@ -1241,6 +1369,11 @@ type_specifier:
                        $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
                        $$->u.type_specifier.type = TYPESPEC_COMPLEX;
                }
+       |       _IMAGINARY
+               {
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->u.type_specifier.type = TYPESPEC_IMAGINARY;
+               }
        |       ID_TYPE
                {
                        $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
@@ -1249,71 +1382,100 @@ type_specifier:
                }
        |       FLOATING_POINT LBRAC RBRAC
                {
-                       $$ = make_node(scanner, NODE_FLOATING_POINT);
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->u.type_specifier.type = TYPESPEC_FLOATING_POINT;
+                       $$->u.type_specifier.node = make_node(scanner, NODE_FLOATING_POINT);
                }
        |       FLOATING_POINT LBRAC ctf_assignment_expression_list RBRAC
                {
-                       $$ = make_node(scanner, NODE_FLOATING_POINT);
-                       if (reparent_node($3, $$))
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->u.type_specifier.type = TYPESPEC_FLOATING_POINT;
+                       $$->u.type_specifier.node = make_node(scanner, NODE_FLOATING_POINT);
+                       if (set_parent_node($3, $$->u.type_specifier.node))
                                reparent_error(scanner, "floating point reparent error");
                }
        |       INTEGER LBRAC RBRAC
                {
-                       $$ = make_node(scanner, NODE_INTEGER);
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->u.type_specifier.type = TYPESPEC_INTEGER;
+                       $$->u.type_specifier.node = make_node(scanner, NODE_INTEGER);
                }
        |       INTEGER LBRAC ctf_assignment_expression_list RBRAC
                {
-                       $$ = make_node(scanner, NODE_INTEGER);
-                       if (reparent_node($3, $$))
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->u.type_specifier.type = TYPESPEC_INTEGER;
+                       $$->u.type_specifier.node = make_node(scanner, NODE_INTEGER);
+                       if (set_parent_node($3, $$->u.type_specifier.node))
                                reparent_error(scanner, "integer reparent error");
                }
        |       STRING LBRAC RBRAC
                {
-                       $$ = make_node(scanner, NODE_STRING);
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->u.type_specifier.type = TYPESPEC_STRING;
+                       $$->u.type_specifier.node = make_node(scanner, NODE_STRING);
                }
        |       STRING LBRAC ctf_assignment_expression_list RBRAC
                {
-                       $$ = make_node(scanner, NODE_STRING);
-                       if (reparent_node($3, $$))
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->u.type_specifier.type = TYPESPEC_STRING;
+                       $$->u.type_specifier.node = make_node(scanner, NODE_STRING);
+                       if (set_parent_node($3, $$->u.type_specifier.node))
                                reparent_error(scanner, "string reparent error");
                }
        |       ENUM enum_type_specifier
-               {       $$ = $2;                }
+               {
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->u.type_specifier.type = TYPESPEC_ENUM;
+                       $$->u.type_specifier.node = $2;
+               }
        |       VARIANT variant_type_specifier
-               {       $$ = $2;                }
+               {
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->u.type_specifier.type = TYPESPEC_VARIANT;
+                       $$->u.type_specifier.node = $2;
+               }
        |       STRUCT struct_type_specifier
-               {       $$ = $2;                }
+               {
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->u.type_specifier.type = TYPESPEC_STRUCT;
+                       $$->u.type_specifier.node = $2;
+               }
        ;
 
 struct_type_specifier:
                struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end
                {
                        $$ = make_node(scanner, NODE_STRUCT);
-                       if (reparent_node($2, $$))
+                       $$->u._struct.has_body = 1;
+                       if (set_parent_node($2, $$))
                                reparent_error(scanner, "struct reparent error");
                }
        |       IDENTIFIER struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end
                {
                        $$ = make_node(scanner, NODE_STRUCT);
+                       $$->u._struct.has_body = 1;
                        $$->u._struct.name = $1->s;
-                       if (reparent_node($3, $$))
+                       if (set_parent_node($3, $$))
                                reparent_error(scanner, "struct reparent error");
                }
        |       ID_TYPE struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end
                {
                        $$ = make_node(scanner, NODE_STRUCT);
+                       $$->u._struct.has_body = 1;
                        $$->u._struct.name = $1->s;
-                       if (reparent_node($3, $$))
+                       if (set_parent_node($3, $$))
                                reparent_error(scanner, "struct reparent error");
                }
        |       IDENTIFIER
                {
                        $$ = make_node(scanner, NODE_STRUCT);
+                       $$->u._struct.has_body = 0;
                        $$->u._struct.name = $1->s;
                }
        |       ID_TYPE
                {
                        $$ = make_node(scanner, NODE_STRUCT);
+                       $$->u._struct.has_body = 0;
                        $$->u._struct.name = $1->s;
                }
        ;
@@ -1332,90 +1494,103 @@ variant_type_specifier:
                variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
                {
                        $$ = make_node(scanner, NODE_VARIANT);
-                       if (reparent_node($2, $$))
+                       $$->u.variant.has_body = 1;
+                       if (set_parent_node($2, $$))
                                reparent_error(scanner, "variant reparent error");
                }
        |       LT IDENTIFIER GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
                {
                        $$ = make_node(scanner, NODE_VARIANT);
+                       $$->u.variant.has_body = 1;
                        $$->u.variant.choice = $2->s;
-                       if (reparent_node($5, $$))
+                       if (set_parent_node($5, $$))
                                reparent_error(scanner, "variant reparent error");
                }
        |       LT ID_TYPE GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
                {
                        $$ = make_node(scanner, NODE_VARIANT);
+                       $$->u.variant.has_body = 1;
                        $$->u.variant.choice = $2->s;
-                       if (reparent_node($5, $$))
+                       if (set_parent_node($5, $$))
                                reparent_error(scanner, "variant reparent error");
                }
        |       IDENTIFIER variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
                {
                        $$ = make_node(scanner, NODE_VARIANT);
+                       $$->u.variant.has_body = 1;
                        $$->u.variant.name = $1->s;
-                       if (reparent_node($3, $$))
+                       if (set_parent_node($3, $$))
                                reparent_error(scanner, "variant reparent error");
                }
        |       IDENTIFIER LT IDENTIFIER GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
                {
                        $$ = make_node(scanner, NODE_VARIANT);
+                       $$->u.variant.has_body = 1;
                        $$->u.variant.name = $1->s;
                        $$->u.variant.choice = $3->s;
-                       if (reparent_node($6, $$))
+                       if (set_parent_node($6, $$))
                                reparent_error(scanner, "variant reparent error");
                }
        |       IDENTIFIER LT IDENTIFIER GT
                {
                        $$ = make_node(scanner, NODE_VARIANT);
+                       $$->u.variant.has_body = 0;
                        $$->u.variant.name = $1->s;
                        $$->u.variant.choice = $3->s;
                }
        |       IDENTIFIER LT ID_TYPE GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
                {
                        $$ = make_node(scanner, NODE_VARIANT);
+                       $$->u.variant.has_body = 1;
                        $$->u.variant.name = $1->s;
                        $$->u.variant.choice = $3->s;
-                       if (reparent_node($6, $$))
+                       if (set_parent_node($6, $$))
                                reparent_error(scanner, "variant reparent error");
                }
        |       IDENTIFIER LT ID_TYPE GT
                {
                        $$ = make_node(scanner, NODE_VARIANT);
+                       $$->u.variant.has_body = 0;
                        $$->u.variant.name = $1->s;
                        $$->u.variant.choice = $3->s;
                }
        |       ID_TYPE variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
                {
                        $$ = make_node(scanner, NODE_VARIANT);
+                       $$->u.variant.has_body = 1;
                        $$->u.variant.name = $1->s;
-                       if (reparent_node($3, $$))
+                       if (set_parent_node($3, $$))
                                reparent_error(scanner, "variant reparent error");
                }
        |       ID_TYPE LT IDENTIFIER GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
                {
                        $$ = make_node(scanner, NODE_VARIANT);
+                       $$->u.variant.has_body = 1;
                        $$->u.variant.name = $1->s;
                        $$->u.variant.choice = $3->s;
-                       if (reparent_node($6, $$))
+                       if (set_parent_node($6, $$))
                                reparent_error(scanner, "variant reparent error");
                }
        |       ID_TYPE LT IDENTIFIER GT
                {
                        $$ = make_node(scanner, NODE_VARIANT);
+                       $$->u.variant.has_body = 0;
                        $$->u.variant.name = $1->s;
                        $$->u.variant.choice = $3->s;
                }
        |       ID_TYPE LT ID_TYPE GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
                {
                        $$ = make_node(scanner, NODE_VARIANT);
+                       $$->u.variant.has_body = 1;
                        $$->u.variant.name = $1->s;
                        $$->u.variant.choice = $3->s;
-                       if (reparent_node($6, $$))
+                       if (set_parent_node($6, $$))
                                reparent_error(scanner, "variant reparent error");
                }
        |       ID_TYPE LT ID_TYPE GT
                {
                        $$ = make_node(scanner, NODE_VARIANT);
+                       $$->u.variant.has_body = 0;
                        $$->u.variant.name = $1->s;
                        $$->u.variant.choice = $3->s;
                }
@@ -1431,28 +1606,28 @@ variant_declaration_end:
                {       pop_scope(scanner);     }
        ;
 
-type_specifier_or_integer_constant:
+declaration_specifiers_or_integer_constant:
                declaration_specifiers
                {       $$ = $1;                }
        |       DECIMAL_CONSTANT
                {
                        $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
                        $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
-                       sscanf(yylval.gs->s, "%llu",
+                       sscanf(yylval.gs->s, "%" PRIu64,
                               &$$->u.unary_expression.u.unsigned_constant);
                }
        |       OCTAL_CONSTANT
                {
                        $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
                        $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
-                       sscanf(yylval.gs->s, "0%llo",
+                       sscanf(yylval.gs->s, "0%" PRIo64,
                               &$$->u.unary_expression.u.unsigned_constant);
                }
        |       HEXADECIMAL_CONSTANT
                {
                        $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
                        $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
-                       sscanf(yylval.gs->s, "0x%llx",
+                       sscanf(yylval.gs->s, "0x%" PRIx64,
                               &$$->u.unary_expression.u.unsigned_constant);
                }
        ;
@@ -1461,98 +1636,114 @@ enum_type_specifier:
                LBRAC enumerator_list RBRAC
                {
                        $$ = make_node(scanner, NODE_ENUM);
-                       cds_list_add(&($2)->siblings, &($$)->u._enum.enumerator_list);
+                       $$->u._enum.has_body = 1;
+                       _cds_list_splice_tail(&($2)->tmp_head, &($$)->u._enum.enumerator_list);
                }
-       |       LT type_specifier_or_integer_constant GT LBRAC enumerator_list RBRAC
+       |       LT declaration_specifiers GT LBRAC enumerator_list RBRAC
                {
                        $$ = make_node(scanner, NODE_ENUM);
-                       $$->u._enum.container_type = $2;
-                       cds_list_add(&($5)->siblings, &($$)->u._enum.enumerator_list);
+                       $$->u._enum.has_body = 1;
+                       ($$)->u._enum.container_type = $2;
+                       _cds_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
                }
        |       IDENTIFIER LBRAC enumerator_list RBRAC
                {
                        $$ = make_node(scanner, NODE_ENUM);
+                       $$->u._enum.has_body = 1;
                        $$->u._enum.enum_id = $1->s;
-                       cds_list_add(&($3)->siblings, &($$)->u._enum.enumerator_list);
+                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
                }
-       |       IDENTIFIER LT type_specifier_or_integer_constant GT LBRAC enumerator_list RBRAC
+       |       IDENTIFIER LT declaration_specifiers GT LBRAC enumerator_list RBRAC
                {
                        $$ = make_node(scanner, NODE_ENUM);
+                       $$->u._enum.has_body = 1;
                        $$->u._enum.enum_id = $1->s;
-                       $$->u._enum.container_type = $3;
-                       cds_list_add(&($6)->siblings, &($$)->u._enum.enumerator_list);
+                       ($$)->u._enum.container_type = $3;
+                       _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
                }
        |       ID_TYPE LBRAC enumerator_list RBRAC
                {
                        $$ = make_node(scanner, NODE_ENUM);
+                       $$->u._enum.has_body = 1;
                        $$->u._enum.enum_id = $1->s;
-                       cds_list_add(&($3)->siblings, &($$)->u._enum.enumerator_list);
+                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
                }
-       |       ID_TYPE LT type_specifier_or_integer_constant GT LBRAC enumerator_list RBRAC
+       |       ID_TYPE LT declaration_specifiers GT LBRAC enumerator_list RBRAC
                {
                        $$ = make_node(scanner, NODE_ENUM);
+                       $$->u._enum.has_body = 1;
                        $$->u._enum.enum_id = $1->s;
-                       $$->u._enum.container_type = $3;
-                       cds_list_add(&($6)->siblings, &($$)->u._enum.enumerator_list);
+                       ($$)->u._enum.container_type = $3;
+                       _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
                }
        |       LBRAC enumerator_list COMMA RBRAC
                {
                        $$ = make_node(scanner, NODE_ENUM);
-                       cds_list_add(&($2)->siblings, &($$)->u._enum.enumerator_list);
+                       $$->u._enum.has_body = 1;
+                       _cds_list_splice_tail(&($2)->tmp_head, &($$)->u._enum.enumerator_list);
                }
-       |       LT type_specifier_or_integer_constant GT LBRAC enumerator_list COMMA RBRAC
+       |       LT declaration_specifiers GT LBRAC enumerator_list COMMA RBRAC
                {
                        $$ = make_node(scanner, NODE_ENUM);
-                       $$->u._enum.container_type = $2;
-                       cds_list_add(&($5)->siblings, &($$)->u._enum.enumerator_list);
+                       $$->u._enum.has_body = 1;
+                       ($$)->u._enum.container_type = $2;
+                       _cds_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
                }
        |       IDENTIFIER LBRAC enumerator_list COMMA RBRAC
                {
                        $$ = make_node(scanner, NODE_ENUM);
+                       $$->u._enum.has_body = 1;
                        $$->u._enum.enum_id = $1->s;
-                       cds_list_add(&($3)->siblings, &($$)->u._enum.enumerator_list);
+                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
                }
-       |       IDENTIFIER LT type_specifier_or_integer_constant GT LBRAC enumerator_list COMMA RBRAC
+       |       IDENTIFIER LT declaration_specifiers GT LBRAC enumerator_list COMMA RBRAC
                {
                        $$ = make_node(scanner, NODE_ENUM);
+                       $$->u._enum.has_body = 1;
                        $$->u._enum.enum_id = $1->s;
-                       $$->u._enum.container_type = $3;
-                       cds_list_add(&($6)->siblings, &($$)->u._enum.enumerator_list);
+                       ($$)->u._enum.container_type = $3;
+                       _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
                }
        |       IDENTIFIER
                {
                        $$ = make_node(scanner, NODE_ENUM);
+                       $$->u._enum.has_body = 0;
                        $$->u._enum.enum_id = $1->s;
                }
-       |       IDENTIFIER LT type_specifier_or_integer_constant GT
+       |       IDENTIFIER LT declaration_specifiers GT
                {
                        $$ = make_node(scanner, NODE_ENUM);
+                       $$->u._enum.has_body = 0;
                        $$->u._enum.enum_id = $1->s;
-                       $$->u._enum.container_type = $3;
+                       ($$)->u._enum.container_type = $3;
                }
        |       ID_TYPE LBRAC enumerator_list COMMA RBRAC
                {
                        $$ = make_node(scanner, NODE_ENUM);
+                       $$->u._enum.has_body = 1;
                        $$->u._enum.enum_id = $1->s;
-                       cds_list_add(&($3)->siblings, &($$)->u._enum.enumerator_list);
+                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
                }
-       |       ID_TYPE LT type_specifier_or_integer_constant GT LBRAC enumerator_list COMMA RBRAC
+       |       ID_TYPE LT declaration_specifiers GT LBRAC enumerator_list COMMA RBRAC
                {
                        $$ = make_node(scanner, NODE_ENUM);
+                       $$->u._enum.has_body = 1;
                        $$->u._enum.enum_id = $1->s;
-                       $$->u._enum.container_type = $3;
-                       cds_list_add(&($6)->siblings, &($$)->u._enum.enumerator_list);
+                       ($$)->u._enum.container_type = $3;
+                       _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
                }
        |       ID_TYPE
                {
                        $$ = make_node(scanner, NODE_ENUM);
+                       $$->u._enum.has_body = 0;
                        $$->u._enum.enum_id = $1->s;
                }
-       |       ID_TYPE LT type_specifier_or_integer_constant GT
+       |       ID_TYPE LT declaration_specifiers GT
                {
                        $$ = make_node(scanner, NODE_ENUM);
+                       $$->u._enum.has_body = 0;
                        $$->u._enum.enum_id = $1->s;
-                       $$->u._enum.container_type = $3;
+                       ($$)->u._enum.container_type = $3;
                }
        ;
 
@@ -1563,81 +1754,129 @@ struct_or_variant_declaration_list:
                {
                        if ($1) {
                                $$ = $1;
-                               cds_list_add(&($2)->siblings, &($1)->siblings);
+                               cds_list_add_tail(&($2)->siblings, &($$)->tmp_head);
                        } else {
                                $$ = $2;
+                               cds_list_add_tail(&($$)->siblings, &($$)->tmp_head);
                        }
                }
        ;
 
 struct_or_variant_declaration:
-               specifier_qualifier_list struct_or_variant_declarator_list SEMICOLON
+               declaration_specifiers struct_or_variant_declarator_list SEMICOLON
                {
+                       struct ctf_node *list;
+
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       _cds_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
                        $$ = make_node(scanner, NODE_STRUCT_OR_VARIANT_DECLARATION);
-                       cds_list_add(&($1)->siblings, &($$)->u.struct_or_variant_declaration.declaration_specifier);
-                       cds_list_add(&($2)->siblings, &($$)->u.struct_or_variant_declaration.type_declarators);
+                       ($$)->u.struct_or_variant_declaration.type_specifier_list = list;
+                       _cds_list_splice_tail(&($2)->tmp_head, &($$)->u.struct_or_variant_declaration.type_declarators);
                }
-       |       specifier_qualifier_list TYPEDEF specifier_qualifier_list type_declarator_list SEMICOLON
+       |       declaration_specifiers TYPEDEF declaration_specifiers type_declarator_list SEMICOLON
                {
+                       struct ctf_node *list;
+
                        $$ = make_node(scanner, NODE_TYPEDEF);
-                       cds_list_add(&($3)->siblings, &($$)->u._typedef.declaration_specifier);
-                       cds_list_add(&($1)->siblings, &($$)->u._typedef.declaration_specifier);
-                       cds_list_add(&($4)->siblings, &($$)->u._typedef.type_declarators);
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->u._typedef.type_specifier_list = list;
+                       _cds_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
+                       _cds_list_splice_tail(&($3)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
+                       _cds_list_splice_tail(&($4)->tmp_head, &($$)->u._typedef.type_declarators);
                }
-       |       TYPEDEF specifier_qualifier_list type_declarator_list SEMICOLON
+       |       TYPEDEF declaration_specifiers type_declarator_list SEMICOLON
                {
+                       struct ctf_node *list;
+
                        $$ = make_node(scanner, NODE_TYPEDEF);
-                       cds_list_add(&($2)->siblings, &($$)->u._typedef.declaration_specifier);
-                       cds_list_add(&($3)->siblings, &($$)->u._typedef.type_declarators);
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->u._typedef.type_specifier_list = list;
+                       _cds_list_splice_tail(&($2)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
+                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
                }
-       |       specifier_qualifier_list TYPEDEF type_declarator_list SEMICOLON
+       |       declaration_specifiers TYPEDEF type_declarator_list SEMICOLON
                {
+                       struct ctf_node *list;
+
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       _cds_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
                        $$ = make_node(scanner, NODE_TYPEDEF);
-                       cds_list_add(&($1)->siblings, &($$)->u._typedef.declaration_specifier);
-                       cds_list_add(&($3)->siblings, &($$)->u._typedef.type_declarators);
-               }
-       |       TYPEALIAS specifier_qualifier_list abstract_declarator_list COLON specifier_qualifier_list abstract_type_declarator_list SEMICOLON
-               {
-                       $$ = make_node(scanner, NODE_TYPEALIAS);
-                       $$->u.typealias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
-                       $$->u.typealias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
-                       cds_list_add(&($2)->siblings, &($$)->u.typealias.target->u.typealias_target.declaration_specifier);
-                       cds_list_add(&($3)->siblings, &($$)->u.typealias.target->u.typealias_target.type_declarators);
-                       cds_list_add(&($5)->siblings, &($$)->u.typealias.alias->u.typealias_alias.declaration_specifier);
-                       cds_list_add(&($6)->siblings, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
+                       ($$)->u.struct_or_variant_declaration.type_specifier_list = list;
+                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
                }
-       |       TYPEALIAS specifier_qualifier_list abstract_declarator_list COLON type_declarator_list SEMICOLON
+       |       TYPEALIAS declaration_specifiers abstract_declarator_list COLON alias_declaration_specifiers alias_abstract_declarator_list SEMICOLON
                {
+                       struct ctf_node *list;
+
                        $$ = make_node(scanner, NODE_TYPEALIAS);
                        $$->u.typealias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
                        $$->u.typealias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
-                       cds_list_add(&($2)->siblings, &($$)->u.typealias.target->u.typealias_target.declaration_specifier);
-                       cds_list_add(&($3)->siblings, &($$)->u.typealias.target->u.typealias_target.type_declarators);
-                       cds_list_add(&($5)->siblings, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
+
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->u.typealias.target->u.typealias_target.type_specifier_list = list;
+                       _cds_list_splice_tail(&($2)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
+                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u.typealias.target->u.typealias_target.type_declarators);
+
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->u.typealias.alias->u.typealias_alias.type_specifier_list = list;
+                       _cds_list_splice_tail(&($5)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
+                       _cds_list_splice_tail(&($6)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
                }
        ;
 
-specifier_qualifier_list:
+alias_declaration_specifiers:
                CONST
                {
-                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-                       $$->u.type_specifier.type = TYPESPEC_CONST;
+                       struct ctf_node *node;
+
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       node = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       node->u.type_specifier.type = TYPESPEC_CONST;
+                       cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
                }
        |       type_specifier
-               {       $$ = $1;        }
-       |       specifier_qualifier_list CONST
+               {
+                       struct ctf_node *node;
+
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       node = $1;
+                       cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
+               }
+       |       IDENTIFIER
+               {
+                       struct ctf_node *node;
+
+                       add_type(scanner, $1);
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       node = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       node->u.type_specifier.type = TYPESPEC_ID_TYPE;
+                       node->u.type_specifier.id_type = yylval.gs->s;
+                       cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
+               }
+       |       alias_declaration_specifiers CONST
                {
                        struct ctf_node *node;
 
                        $$ = $1;
                        node = make_node(scanner, NODE_TYPE_SPECIFIER);
                        node->u.type_specifier.type = TYPESPEC_CONST;
-                       cds_list_add(&node->siblings, &($$)->siblings);
+                       cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
                }
-       |       specifier_qualifier_list type_specifier
+       |       alias_declaration_specifiers type_specifier
                {
                        $$ = $1;
-                       cds_list_add(&($2)->siblings, &($$)->siblings);
+                       cds_list_add_tail(&($2)->siblings, &($$)->u.type_specifier_list.head);
+               }
+       |       alias_declaration_specifiers IDENTIFIER
+               {
+                       struct ctf_node *node;
+
+                       add_type(scanner, $2);
+                       $$ = $1;
+                       node = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       node->u.type_specifier.type = TYPESPEC_ID_TYPE;
+                       node->u.type_specifier.id_type = yylval.gs->s;
+                       cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
                }
        ;
 
@@ -1647,7 +1886,7 @@ struct_or_variant_declarator_list:
        |       struct_or_variant_declarator_list COMMA struct_or_variant_declarator
                {
                        $$ = $1;
-                       cds_list_add(&($3)->siblings, &($$)->siblings);
+                       cds_list_add_tail(&($3)->siblings, &($$)->tmp_head);
                }
        ;
 
@@ -1659,7 +1898,7 @@ struct_or_variant_declarator:
        |       declarator COLON unary_expression
                {
                        $$ = $1;
-                       if (reparent_node($3, $1))
+                       if (set_parent_node($3, $1))
                                reparent_error(scanner, "struct_or_variant_declarator");
                }
        ;
@@ -1670,7 +1909,7 @@ enumerator_list:
        |       enumerator_list COMMA enumerator
                {
                        $$ = $1;
-                       cds_list_add(&($3)->siblings, &($$)->siblings);
+                       cds_list_add_tail(&($3)->siblings, &($$)->tmp_head);
                }
        ;
 
@@ -1704,31 +1943,31 @@ enumerator:
                {
                        $$ = make_node(scanner, NODE_ENUMERATOR);
                        $$->u.enumerator.id = $1->s;
-                       $$->u.enumerator.values = $3;
+                       cds_list_splice(&($3)->tmp_head, &($$)->u.enumerator.values);
                }
        |       ID_TYPE EQUAL unary_expression_or_range
                {
                        $$ = make_node(scanner, NODE_ENUMERATOR);
                        $$->u.enumerator.id = $1->s;
-                       $$->u.enumerator.values = $3;
+                       cds_list_splice(&($3)->tmp_head, &($$)->u.enumerator.values);
                }
        |       keywords EQUAL unary_expression_or_range
                {
                        $$ = make_node(scanner, NODE_ENUMERATOR);
                        $$->u.enumerator.id = $1->s;
-                       $$->u.enumerator.values = $3;
+                       cds_list_splice(&($3)->tmp_head, &($$)->u.enumerator.values);
                }
        |       STRING_LITERAL_START DQUOTE EQUAL unary_expression_or_range
                {
                        $$ = make_node(scanner, NODE_ENUMERATOR);
                        $$->u.enumerator.id = "";
-                       $$->u.enumerator.values = $4;
+                       cds_list_splice(&($4)->tmp_head, &($$)->u.enumerator.values);
                }
        |       STRING_LITERAL_START s_char_sequence DQUOTE EQUAL unary_expression_or_range
                {
                        $$ = make_node(scanner, NODE_ENUMERATOR);
                        $$->u.enumerator.id = $2->s;
-                       $$->u.enumerator.values = $5;
+                       cds_list_splice(&($5)->tmp_head, &($$)->u.enumerator.values);
                }
        ;
 
@@ -1738,7 +1977,7 @@ abstract_declarator_list:
        |       abstract_declarator_list COMMA abstract_declarator
                {
                        $$ = $1;
-                       cds_list_add(&($3)->siblings, &($$)->siblings);
+                       cds_list_add_tail(&($3)->siblings, &($$)->tmp_head);
                }
        ;
 
@@ -1748,7 +1987,7 @@ abstract_declarator:
        |       pointer direct_abstract_declarator
                {
                        $$ = $2;
-                       cds_list_add(&($1)->siblings, &($$)->u.type_declarator.pointers);
+                       cds_list_splice(&($1)->tmp_head, &($$)->u.type_declarator.pointers);
                }
        ;
 
@@ -1771,12 +2010,12 @@ direct_abstract_declarator:
                        $$->u.type_declarator.type = TYPEDEC_NESTED;
                        $$->u.type_declarator.u.nested.type_declarator = $2;
                }
-       |       direct_abstract_declarator LSBRAC type_specifier_or_integer_constant RSBRAC
+       |       direct_abstract_declarator LSBRAC declaration_specifiers_or_integer_constant RSBRAC
                {
                        $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
                        $$->u.type_declarator.type = TYPEDEC_NESTED;
                        $$->u.type_declarator.u.nested.type_declarator = $1;
-                       $$->u.type_declarator.u.nested.length = $3;
+                       ($$)->u.type_declarator.u.nested.length = $3;
                }
        |       direct_abstract_declarator LSBRAC RSBRAC
                {
@@ -1787,130 +2026,135 @@ direct_abstract_declarator:
                }
        ;
 
-declarator:
-               direct_declarator
+alias_abstract_declarator_list:
+               alias_abstract_declarator
                {       $$ = $1;        }
-       |       pointer direct_declarator
+       |       alias_abstract_declarator_list COMMA alias_abstract_declarator
+               {
+                       $$ = $1;
+                       cds_list_add_tail(&($3)->siblings, &($$)->tmp_head);
+               }
+       ;
+
+alias_abstract_declarator:
+               direct_alias_abstract_declarator
+               {       $$ = $1;        }
+       |       pointer direct_alias_abstract_declarator
                {
                        $$ = $2;
-                       cds_list_add(&($1)->siblings, &($$)->u.type_declarator.pointers);
+                       cds_list_splice(&($1)->tmp_head, &($$)->u.type_declarator.pointers);
                }
        ;
 
-direct_declarator:
-               IDENTIFIER
+direct_alias_abstract_declarator:
+               /* empty */
                {
                        $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
-                       $$->u.type_declarator.type = TYPEDEC_ID;
-                       $$->u.type_declarator.u.id = $1->s;
+                        $$->u.type_declarator.type = TYPEDEC_ID;
+                       /* id is NULL */
                }
-       |       LPAREN declarator RPAREN
+       |       LPAREN alias_abstract_declarator RPAREN
                {
                        $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
                        $$->u.type_declarator.type = TYPEDEC_NESTED;
                        $$->u.type_declarator.u.nested.type_declarator = $2;
                }
-       |       direct_declarator LSBRAC type_specifier_or_integer_constant RSBRAC
+       |       direct_alias_abstract_declarator LSBRAC declaration_specifiers_or_integer_constant RSBRAC
                {
                        $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
                        $$->u.type_declarator.type = TYPEDEC_NESTED;
                        $$->u.type_declarator.u.nested.type_declarator = $1;
-                       $$->u.type_declarator.u.nested.length = $3;
+                       ($$)->u.type_declarator.u.nested.length = $3;
+               }
+       |       direct_alias_abstract_declarator LSBRAC RSBRAC
+               {
+                       $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
+                       $$->u.type_declarator.type = TYPEDEC_NESTED;
+                       $$->u.type_declarator.u.nested.type_declarator = $1;
+                       $$->u.type_declarator.u.nested.abstract_array = 1;
                }
        ;
 
-type_declarator:
-               direct_type_declarator
+declarator:
+               direct_declarator
                {       $$ = $1;        }
-       |       pointer direct_type_declarator
+       |       pointer direct_declarator
                {
                        $$ = $2;
-                       cds_list_add(&($1)->siblings, &($$)->u.type_declarator.pointers);
+                       cds_list_splice(&($1)->tmp_head, &($$)->u.type_declarator.pointers);
                }
        ;
 
-direct_type_declarator:
+direct_declarator:
                IDENTIFIER
                {
-                       add_type(scanner, $1);
                        $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
                        $$->u.type_declarator.type = TYPEDEC_ID;
                        $$->u.type_declarator.u.id = $1->s;
                }
-       |       LPAREN type_declarator RPAREN
+       |       LPAREN declarator RPAREN
                {
                        $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
                        $$->u.type_declarator.type = TYPEDEC_NESTED;
                        $$->u.type_declarator.u.nested.type_declarator = $2;
                }
-       |       direct_type_declarator LSBRAC type_specifier_or_integer_constant RSBRAC
+       |       direct_declarator LSBRAC declaration_specifiers_or_integer_constant RSBRAC
                {
                        $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
                        $$->u.type_declarator.type = TYPEDEC_NESTED;
                        $$->u.type_declarator.u.nested.type_declarator = $1;
-                       $$->u.type_declarator.u.nested.length = $3;
+                       ($$)->u.type_declarator.u.nested.length = $3;
                }
        ;
 
-abstract_type_declarator:
-               direct_abstract_type_declarator
+type_declarator:
+               direct_type_declarator
                {       $$ = $1;        }
-       |       pointer direct_abstract_type_declarator
+       |       pointer direct_type_declarator
                {
                        $$ = $2;
-                       cds_list_add(&($1)->siblings, &($$)->u.type_declarator.pointers);
+                       cds_list_splice(&($1)->tmp_head, &($$)->u.type_declarator.pointers);
                }
        ;
 
-direct_abstract_type_declarator:
-               /* empty */
-               {
-                       $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
-                        $$->u.type_declarator.type = TYPEDEC_ID;
-                       /* id is NULL */
-               }
-       |       IDENTIFIER
+direct_type_declarator:
+               IDENTIFIER
                {
                        add_type(scanner, $1);
                        $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
                        $$->u.type_declarator.type = TYPEDEC_ID;
                        $$->u.type_declarator.u.id = $1->s;
                }
-       |       LPAREN abstract_type_declarator RPAREN
+       |       LPAREN type_declarator RPAREN
                {
                        $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
                        $$->u.type_declarator.type = TYPEDEC_NESTED;
                        $$->u.type_declarator.u.nested.type_declarator = $2;
                }
-       |       direct_abstract_type_declarator LSBRAC type_specifier_or_integer_constant RSBRAC
+       |       direct_type_declarator LSBRAC declaration_specifiers_or_integer_constant RSBRAC
                {
                        $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
                        $$->u.type_declarator.type = TYPEDEC_NESTED;
                        $$->u.type_declarator.u.nested.type_declarator = $1;
-                       $$->u.type_declarator.u.nested.length = $3;
-               }
-       |       direct_abstract_type_declarator LSBRAC RSBRAC
-               {
-                       $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
-                       $$->u.type_declarator.type = TYPEDEC_NESTED;
-                       $$->u.type_declarator.u.nested.type_declarator = $1;
-                       $$->u.type_declarator.u.nested.abstract_array = 1;
+                       ($$)->u.type_declarator.u.nested.length = $3;
                }
        ;
 
 pointer:       
                STAR
-               {       $$ = make_node(scanner, NODE_POINTER);          }
+               {
+                       $$ = make_node(scanner, NODE_POINTER);
+               }
        |       STAR pointer
                {
                        $$ = make_node(scanner, NODE_POINTER);
-                       cds_list_add(&($2)->siblings, &($$)->siblings);
+                       cds_list_splice(&($2)->tmp_head, &($$)->tmp_head);
                }
        |       STAR type_qualifier_list pointer
                {
                        $$ = make_node(scanner, NODE_POINTER);
                        $$->u.pointer.const_qualifier = 1;
-                       cds_list_add(&($3)->siblings, &($$)->siblings);
+                       cds_list_splice(&($3)->tmp_head, &($$)->tmp_head);
                }
        ;
 
@@ -1928,7 +2172,7 @@ ctf_assignment_expression_list:
        |       ctf_assignment_expression_list ctf_assignment_expression SEMICOLON
                {
                        $$ = $1;
-                       cds_list_add(&($2)->siblings, &($1)->siblings);
+                       cds_list_add_tail(&($2)->siblings, &($$)->tmp_head);
                }
        ;
 
@@ -1937,62 +2181,73 @@ ctf_assignment_expression:
                {
                        /*
                         * Because we have left and right, cannot use
-                        * reparent_node.
+                        * set_parent_node.
                         */
                        $$ = make_node(scanner, NODE_CTF_EXPRESSION);
-                       $$->u.ctf_expression.left = $1;
+                       _cds_list_splice_tail(&($1)->tmp_head, &($$)->u.ctf_expression.left);
                        if ($1->u.unary_expression.type != UNARY_STRING)
                                reparent_error(scanner, "ctf_assignment_expression left expects string");
-                       $$->u.ctf_expression.right = $3;
+                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u.ctf_expression.right);
                }
-       |       unary_expression TYPEASSIGN type_specifier
+       |       unary_expression TYPEASSIGN declaration_specifiers      /* Only allow struct */
                {
                        /*
                         * Because we have left and right, cannot use
-                        * reparent_node.
+                        * set_parent_node.
                         */
                        $$ = make_node(scanner, NODE_CTF_EXPRESSION);
-                       $$->u.ctf_expression.left = $1;
+                       _cds_list_splice_tail(&($1)->tmp_head, &($$)->u.ctf_expression.left);
                        if ($1->u.unary_expression.type != UNARY_STRING)
                                reparent_error(scanner, "ctf_assignment_expression left expects string");
-                       $$->u.ctf_expression.right = $3;
+                       cds_list_add_tail(&($3)->siblings, &($$)->u.ctf_expression.right);
                }
        |       declaration_specifiers TYPEDEF declaration_specifiers type_declarator_list
                {
+                       struct ctf_node *list;
+
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       _cds_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
+                       _cds_list_splice_tail(&($3)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
                        $$ = make_node(scanner, NODE_TYPEDEF);
-                       cds_list_add(&($3)->siblings, &($$)->u._typedef.declaration_specifier);
-                       cds_list_add(&($1)->siblings, &($$)->u._typedef.declaration_specifier);
-                       cds_list_add(&($4)->siblings, &($$)->u._typedef.type_declarators);
+                       ($$)->u.struct_or_variant_declaration.type_specifier_list = list;
+                       _cds_list_splice_tail(&($4)->tmp_head, &($$)->u._typedef.type_declarators);
                }
        |       TYPEDEF declaration_specifiers type_declarator_list
                {
+                       struct ctf_node *list;
+
                        $$ = make_node(scanner, NODE_TYPEDEF);
-                       cds_list_add(&($2)->siblings, &($$)->u._typedef.declaration_specifier);
-                       cds_list_add(&($3)->siblings, &($$)->u._typedef.type_declarators);
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->u._typedef.type_specifier_list = list;
+                       _cds_list_splice_tail(&($2)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
+                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
                }
        |       declaration_specifiers TYPEDEF type_declarator_list
                {
+                       struct ctf_node *list;
+
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       _cds_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
                        $$ = make_node(scanner, NODE_TYPEDEF);
-                       cds_list_add(&($1)->siblings, &($$)->u._typedef.declaration_specifier);
-                       cds_list_add(&($3)->siblings, &($$)->u._typedef.type_declarators);
-               }
-       |       TYPEALIAS declaration_specifiers abstract_declarator_list COLON declaration_specifiers abstract_type_declarator_list
-               {
-                       $$ = make_node(scanner, NODE_TYPEALIAS);
-                       $$->u.typealias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
-                       $$->u.typealias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
-                       cds_list_add(&($2)->siblings, &($$)->u.typealias.target->u.typealias_target.declaration_specifier);
-                       cds_list_add(&($3)->siblings, &($$)->u.typealias.target->u.typealias_target.type_declarators);
-                       cds_list_add(&($5)->siblings, &($$)->u.typealias.alias->u.typealias_alias.declaration_specifier);
-                       cds_list_add(&($6)->siblings, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
+                       ($$)->u.struct_or_variant_declaration.type_specifier_list = list;
+                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
                }
-       |       TYPEALIAS declaration_specifiers abstract_declarator_list COLON type_declarator_list
+       |       TYPEALIAS declaration_specifiers abstract_declarator_list COLON alias_declaration_specifiers alias_abstract_declarator_list
                {
+                       struct ctf_node *list;
+
                        $$ = make_node(scanner, NODE_TYPEALIAS);
                        $$->u.typealias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
                        $$->u.typealias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
-                       cds_list_add(&($2)->siblings, &($$)->u.typealias.target->u.typealias_target.declaration_specifier);
-                       cds_list_add(&($3)->siblings, &($$)->u.typealias.target->u.typealias_target.type_declarators);
-                       cds_list_add(&($5)->siblings, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
+
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->u.typealias.target->u.typealias_target.type_specifier_list = list;
+                       _cds_list_splice_tail(&($2)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
+                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u.typealias.target->u.typealias_target.type_declarators);
+
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->u.typealias.alias->u.typealias_alias.type_specifier_list = list;
+                       _cds_list_splice_tail(&($5)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
+                       _cds_list_splice_tail(&($6)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
                }
        ;
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