Update sequence (type specifier -> field ref), fix definition lookup
[babeltrace.git] / formats / ctf / metadata / ctf-parser.y
index 66e37923c9315dd482c577912f3f62a75fa5431a..697f942c7cb4f3d2a937e0d7a6effbb22ae49812 100644 (file)
 #include <errno.h>
 #include <inttypes.h>
 #include <babeltrace/list.h>
+#include <babeltrace/babeltrace.h>
 #include "ctf-scanner.h"
 #include "ctf-parser.h"
 #include "ctf-ast.h"
 
+int yydebug;
+
 /*
  * TODO: support enum, variant and struct declarations in scopes.
  */
@@ -47,13 +50,11 @@ _cds_list_splice_tail (struct cds_list_head *add, struct cds_list_head *head)
        }
 }
 
-#define printf_dbg(fmt, args...)       fprintf(stderr, "%s: " fmt, __func__, ## args)
-
 int yyparse(struct ctf_scanner *scanner);
 int yylex(union YYSTYPE *yyval, struct ctf_scanner *scanner);
 int yylex_init_extra(struct ctf_scanner *scanner, yyscan_t * ptr_yy_globals);
-int yylex_destroy(yyscan_t yyscanner) ;
-void yyset_in(FILE * in_str, yyscan_t scanner);
+int yylex_destroy(yyscan_t yyscanner);
+void yyrestart(FILE * in_str, yyscan_t scanner);
 
 int yydebug;
 
@@ -76,6 +77,7 @@ static const char *node_type_to_str[] = {
        [ 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",
@@ -170,7 +172,7 @@ static void push_scope(struct ctf_scanner *scanner)
 {
        struct ctf_scanner_scope *ns;
 
-       printf_dbg("push scope\n");
+       printf_debug("push scope\n");
        ns = malloc(sizeof(struct ctf_scanner_scope));
        init_scope(ns, scanner->cs);
        scanner->cs = ns;
@@ -180,7 +182,7 @@ static void pop_scope(struct ctf_scanner *scanner)
 {
        struct ctf_scanner_scope *os;
 
-       printf_dbg("pop scope\n");
+       printf_debug("pop scope\n");
        os = scanner->cs;
        scanner->cs = os->parent;
        finalize_scope(os);
@@ -192,7 +194,7 @@ static int lookup_type(struct ctf_scanner_scope *s, const char *id)
        int ret;
 
        ret = (int) (long) g_hash_table_lookup(s->types, id);
-       printf_dbg("lookup %p %s %d\n", s, id, ret);
+       printf_debug("lookup %p %s %d\n", s, id, ret);
        return ret;
 }
 
@@ -207,13 +209,13 @@ int is_type(struct ctf_scanner *scanner, const char *id)
                        break;
                }
        }
-       printf_dbg("is type %s %d\n", id, ret);
+       printf_debug("is type %s %d\n", id, ret);
        return ret;
 }
 
 static void add_type(struct ctf_scanner *scanner, struct gc_string *id)
 {
-       printf_dbg("add type %s\n", id->s);
+       printf_debug("add type %s\n", id->s);
        if (lookup_type(scanner->cs, id->s))
                return;
        g_hash_table_insert(scanner->cs->types, id->s, id->s);
@@ -257,15 +259,12 @@ static struct ctf_node *make_node(struct ctf_scanner *scanner,
                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:
@@ -273,6 +272,9 @@ 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:
@@ -292,11 +294,9 @@ static struct ctf_node *make_node(struct ctf_scanner *scanner,
                CDS_INIT_LIST_HEAD(&node->u.enumerator.values);
                break;
        case NODE_ENUM:
-               CDS_INIT_LIST_HEAD(&node->u._enum.container_type);
                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:
@@ -304,6 +304,7 @@ static struct ctf_node *make_node(struct ctf_scanner *scanner,
                break;
        case NODE_STRUCT:
                CDS_INIT_LIST_HEAD(&node->u._struct.declaration_list);
+               CDS_INIT_LIST_HEAD(&node->u._struct.min_align);
                break;
 
        case NODE_UNKNOWN:
@@ -346,6 +347,7 @@ 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:
@@ -369,7 +371,7 @@ static int reparent_typedef(struct ctf_node *node, struct ctf_node *parent)
 {
        switch (parent->type) {
        case NODE_ROOT:
-               _cds_list_splice_tail(&node->tmp_head, &parent->u.root._typedef);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.root.declaration_list);
                break;
        case NODE_EVENT:
                _cds_list_splice_tail(&node->tmp_head, &parent->u.event.declaration_list);
@@ -396,6 +398,7 @@ 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:
@@ -417,7 +420,7 @@ static int reparent_typealias(struct ctf_node *node, struct ctf_node *parent)
 {
        switch (parent->type) {
        case NODE_ROOT:
-               _cds_list_splice_tail(&node->tmp_head, &parent->u.root.typealias);
+               _cds_list_splice_tail(&node->tmp_head, &parent->u.root.declaration_list);
                break;
        case NODE_EVENT:
                _cds_list_splice_tail(&node->tmp_head, &parent->u.event.declaration_list);
@@ -444,6 +447,7 @@ 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:
@@ -463,52 +467,87 @@ 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_splice_tail(&node->tmp_head, &parent->u.root.declaration_specifier);
+               cds_list_add_tail(&node->siblings, &parent->u.root.declaration_list);
                break;
        case NODE_EVENT:
-               _cds_list_splice_tail(&node->tmp_head, &parent->u.event.declaration_list);
+               cds_list_add_tail(&node->siblings, &parent->u.event.declaration_list);
                break;
        case NODE_STREAM:
-               _cds_list_splice_tail(&node->tmp_head, &parent->u.stream.declaration_list);
+               cds_list_add_tail(&node->siblings, &parent->u.stream.declaration_list);
                break;
        case NODE_TRACE:
-               _cds_list_splice_tail(&node->tmp_head, &parent->u.trace.declaration_list);
+               cds_list_add_tail(&node->siblings, &parent->u.trace.declaration_list);
                break;
        case NODE_VARIANT:
-               _cds_list_splice_tail(&node->tmp_head, &parent->u.variant.declaration_list);
+               cds_list_add_tail(&node->siblings, &parent->u.variant.declaration_list);
                break;
        case NODE_STRUCT:
-               _cds_list_splice_tail(&node->tmp_head, &parent->u._struct.declaration_list);
+               cds_list_add_tail(&node->siblings, &parent->u._struct.declaration_list);
                break;
        case NODE_TYPEDEF:
-               _cds_list_splice_tail(&node->tmp_head, &parent->u._typedef.declaration_specifier);
+               parent->u._typedef.type_specifier_list = node;
                break;
        case NODE_TYPEALIAS_TARGET:
-               _cds_list_splice_tail(&node->tmp_head, &parent->u.typealias_target.declaration_specifier);
+               parent->u.typealias_target.type_specifier_list = node;
                break;
        case NODE_TYPEALIAS_ALIAS:
-               _cds_list_splice_tail(&node->tmp_head, &parent->u.typealias_alias.declaration_specifier);
-               break;
-       case NODE_TYPE_DECLARATOR:
-               parent->u.type_declarator.type = TYPEDEC_NESTED;
-               CDS_INIT_LIST_HEAD(&parent->u.type_declarator.u.nested.length);
-               _cds_list_splice_tail(&node->tmp_head, &parent->u.type_declarator.u.nested.length);
+               parent->u.typealias_alias.type_specifier_list = node;
                break;
        case NODE_ENUM:
-               _cds_list_splice_tail(&node->tmp_head, &parent->u._enum.container_type);
+               parent->u._enum.container_type = node;
                break;
        case NODE_STRUCT_OR_VARIANT_DECLARATION:
-               _cds_list_splice_tail(&node->tmp_head, &parent->u.struct_or_variant_declaration.declaration_specifier);
+               parent->u.struct_or_variant_declaration.type_specifier_list = node;
                break;
+       case NODE_TYPE_DECLARATOR:
+       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:
@@ -557,6 +596,7 @@ 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:
@@ -594,20 +634,23 @@ static int set_parent_node(struct ctf_node *node,
        case NODE_EVENT:
                if (parent->type == NODE_ROOT) {
                        _cds_list_splice_tail(&node->tmp_head, &parent->u.root.event);
-               } else
+               } else {
                        return -EPERM;
+               }
                break;
        case NODE_STREAM:
                if (parent->type == NODE_ROOT) {
                        _cds_list_splice_tail(&node->tmp_head, &parent->u.root.stream);
-               } else
+               } else {
                        return -EPERM;
+               }
                break;
        case NODE_TRACE:
                if (parent->type == NODE_ROOT) {
                        _cds_list_splice_tail(&node->tmp_head, &parent->u.root.trace);
-               } else
+               } else {
                        return -EPERM;
+               }
                break;
 
        case NODE_CTF_EXPRESSION:
@@ -643,20 +686,26 @@ static int set_parent_node(struct ctf_node *node,
        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_splice_tail(&node->tmp_head, &parent->u._enum.enumerator_list);
-               } else
+               } else {
                        return -EPERM;
+               }
                break;
        case NODE_STRUCT_OR_VARIANT_DECLARATION:
                switch (parent->type) {
@@ -715,9 +764,7 @@ static struct ctf_ast *ctf_ast_alloc(void)
        CDS_INIT_LIST_HEAD(&ast->allocated_nodes);
        ast->root.type = NODE_ROOT;
        CDS_INIT_LIST_HEAD(&ast->root.tmp_head);
-       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.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);
@@ -742,6 +789,8 @@ struct ctf_scanner *ctf_scanner_alloc(FILE *input)
        struct ctf_scanner *scanner;
        int ret;
 
+       yydebug = babeltrace_debug;
+
        scanner = malloc(sizeof(*scanner));
        if (!scanner)
                return NULL;
@@ -752,7 +801,8 @@ struct ctf_scanner *ctf_scanner_alloc(FILE *input)
                fprintf(stderr, "yylex_init error\n");
                goto cleanup_scanner;
        }
-       yyset_in(input, scanner);
+       /* Start processing new stream */
+       yyrestart(input, scanner->scanner);
 
        scanner->ast = ctf_ast_alloc();
        if (!scanner->ast)
@@ -761,6 +811,11 @@ struct ctf_scanner *ctf_scanner_alloc(FILE *input)
        scanner->cs = &scanner->root_scope;
        CDS_INIT_LIST_HEAD(&scanner->allocated_strings);
 
+       if (yydebug)
+               fprintf(stdout, "Scanner input is a%s.\n",
+                       isatty(fileno(input)) ? "n interactive tty" :
+                                               " noninteractive file");
+
        return scanner;
 
 cleanup_lexer:
@@ -791,8 +846,17 @@ void ctf_scanner_free(struct ctf_scanner *scanner)
        /* %locations */
 %parse-param {struct ctf_scanner *scanner}
 %lex-param {struct ctf_scanner *scanner}
+/*
+ * Expect two shift-reduce conflicts. Caused by enum name-opt : type {}
+ * vs struct { int :value; } (unnamed bit-field). The default is to
+ * shift, so whenever we encounter an enumeration, we are doing the
+ * proper thing (shift). It is illegal to declare an enumeration
+ * "bit-field", so it is OK if this situation ends up in a parsing
+ * error.
+ */
+%expect 2
 %start file
-%token CHARACTER_CONSTANT_START SQUOTE STRING_LITERAL_START DQUOTE ESCSEQ CHAR_STRING_TOKEN LSBRAC RSBRAC LPAREN RPAREN LBRAC RBRAC RARROW STAR PLUS MINUS LT GT TYPEASSIGN COLON SEMICOLON DOTDOTDOT DOT EQUAL COMMA CONST CHAR DOUBLE ENUM EVENT FLOATING_POINT FLOAT INTEGER INT LONG SHORT SIGNED STREAM STRING STRUCT TRACE TYPEALIAS TYPEDEF UNSIGNED VARIANT VOID _BOOL _COMPLEX _IMAGINARY DECIMAL_CONSTANT OCTAL_CONSTANT HEXADECIMAL_CONSTANT
+%token CHARACTER_CONSTANT_START SQUOTE STRING_LITERAL_START DQUOTE ESCSEQ CHAR_STRING_TOKEN LSBRAC RSBRAC LPAREN RPAREN LBRAC RBRAC RARROW STAR PLUS MINUS LT GT TYPEASSIGN COLON SEMICOLON DOTDOTDOT DOT EQUAL COMMA CONST CHAR DOUBLE ENUM EVENT FLOATING_POINT FLOAT INTEGER INT LONG SHORT SIGNED STREAM STRING STRUCT TRACE TYPEALIAS TYPEDEF UNSIGNED VARIANT VOID _BOOL _COMPLEX _IMAGINARY DECIMAL_CONSTANT OCTAL_CONSTANT HEXADECIMAL_CONSTANT TOK_ALIGN
 %token <gs> IDENTIFIER ID_TYPE
 %token ERROR
 %union
@@ -812,14 +876,15 @@ void ctf_scanner_free(struct ctf_scanner *scanner)
 %type <n> event_declaration
 %type <n> stream_declaration
 %type <n> trace_declaration
+%type <n> integer_declaration_specifiers
 %type <n> declaration_specifiers
 %type <n> alias_declaration_specifiers
 
 %type <n> type_declarator_list
+%type <n> integer_type_specifier
 %type <n> type_specifier
 %type <n> struct_type_specifier
 %type <n> variant_type_specifier
-%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
@@ -903,6 +968,8 @@ keywords:
                {       $$ = yylval.gs;         }
        |       TRACE
                {       $$ = yylval.gs;         }
+       |       TOK_ALIGN
+               {       $$ = yylval.gs;         }
        ;
 
 /* 1.5 Constants */
@@ -962,7 +1029,6 @@ postfix_expression:
                        $$->u.unary_expression.type = UNARY_STRING;
                        $$->u.unary_expression.u.string = yylval.gs->s;
                }
-
        |       DECIMAL_CONSTANT
                {
                        $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
@@ -1101,31 +1167,51 @@ declaration:
                {       $$ = $1;        }
        |       declaration_specifiers TYPEDEF declaration_specifiers type_declarator_list SEMICOLON
                {
+                       struct ctf_node *list;
+
                        $$ = make_node(scanner, NODE_TYPEDEF);
-                       _cds_list_splice_tail(&($1)->tmp_head, &($$)->u._typedef.declaration_specifier);
-                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.declaration_specifier);
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->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_splice_tail(&($2)->tmp_head, &($$)->u._typedef.declaration_specifier);
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->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_splice_tail(&($1)->tmp_head, &($$)->u._typedef.declaration_specifier);
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->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, &($$)->u._typedef.type_declarators);
                }
-       |       TYPEALIAS declaration_specifiers abstract_declarator_list COLON alias_declaration_specifiers alias_abstract_declarator_list SEMICOLON
+       |       TYPEALIAS declaration_specifiers abstract_declarator_list TYPEASSIGN alias_declaration_specifiers alias_abstract_declarator_list SEMICOLON
                {
+                       struct ctf_node *list;
+
                        $$ = 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_splice_tail(&($2)->tmp_head, &($$)->u.typealias.target->u.typealias_target.declaration_specifier);
+
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->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, &($$)->u.typealias.target->u.typealias_target.type_declarators);
-                       _cds_list_splice_tail(&($5)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.declaration_specifier);
+
+                       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);
                }
        ;
@@ -1201,14 +1287,58 @@ trace_declaration_end:
                {       pop_scope(scanner);     }
        ;
 
+integer_declaration_specifiers:
+               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);
+               }
+       |       integer_type_specifier
+               {
+                       struct ctf_node *node;
+
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       node = $1;
+                       cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
+               }
+       |       integer_declaration_specifiers CONST
+               {
+                       struct ctf_node *node;
+
+                       $$ = $1;
+                       node = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       node->u.type_specifier.type = TYPESPEC_CONST;
+                       cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
+               }
+       |       integer_declaration_specifiers integer_type_specifier
+               {
+                       $$ = $1;
+                       cds_list_add_tail(&($2)->siblings, &($$)->u.type_specifier_list.head);
+               }
+       ;
+
 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, &($$)->u.type_specifier_list.head);
+               }
        |       declaration_specifiers CONST
                {
                        struct ctf_node *node;
@@ -1216,12 +1346,12 @@ declaration_specifiers:
                        $$ = $1;
                        node = make_node(scanner, NODE_TYPE_SPECIFIER);
                        node->u.type_specifier.type = TYPESPEC_CONST;
-                       cds_list_add_tail(&node->siblings, &($$)->tmp_head);
+                       cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
                }
        |       declaration_specifiers type_specifier
                {
                        $$ = $1;
-                       cds_list_add_tail(&($2)->siblings, &($$)->tmp_head);
+                       cds_list_add_tail(&($2)->siblings, &($$)->u.type_specifier_list.head);
                }
        ;
 
@@ -1235,6 +1365,64 @@ type_declarator_list:
                }
        ;
 
+integer_type_specifier:
+               CHAR
+               {
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->u.type_specifier.type = TYPESPEC_CHAR;
+               }
+       |       SHORT
+               {
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->u.type_specifier.type = TYPESPEC_SHORT;
+               }
+       |       INT
+               {
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->u.type_specifier.type = TYPESPEC_INT;
+               }
+       |       LONG
+               {
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->u.type_specifier.type = TYPESPEC_LONG;
+               }
+       |       SIGNED
+               {
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->u.type_specifier.type = TYPESPEC_SIGNED;
+               }
+       |       UNSIGNED
+               {
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->u.type_specifier.type = TYPESPEC_UNSIGNED;
+               }
+       |       _BOOL
+               {
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->u.type_specifier.type = TYPESPEC_BOOL;
+               }
+       |       ID_TYPE
+               {
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->u.type_specifier.type = TYPESPEC_ID_TYPE;
+                       $$->u.type_specifier.id_type = yylval.gs->s;
+               }
+       |       INTEGER LBRAC RBRAC
+               {
+                       $$ = 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
+               {
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->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");
+               }
+       ;
+
 type_specifier:
                VOID
                {
@@ -1304,40 +1492,70 @@ 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
                {
-                       $$ = make_node(scanner, NODE_FLOATING_POINT);
-                       if (set_parent_node($3, $$))
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->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
                {
-                       $$ = make_node(scanner, NODE_INTEGER);
-                       if (set_parent_node($3, $$))
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->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
+               {
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       $$->u.type_specifier.type = TYPESPEC_STRING;
+                       $$->u.type_specifier.node = make_node(scanner, NODE_STRING);
+               }
        |       STRING LBRAC RBRAC
                {
-                       $$ = 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 (set_parent_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:
@@ -1345,7 +1563,7 @@ struct_type_specifier:
                {
                        $$ = make_node(scanner, NODE_STRUCT);
                        $$->u._struct.has_body = 1;
-                       if (set_parent_node($2, $$))
+                       if ($2 && set_parent_node($2, $$))
                                reparent_error(scanner, "struct reparent error");
                }
        |       IDENTIFIER struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end
@@ -1353,7 +1571,7 @@ struct_type_specifier:
                        $$ = make_node(scanner, NODE_STRUCT);
                        $$->u._struct.has_body = 1;
                        $$->u._struct.name = $1->s;
-                       if (set_parent_node($3, $$))
+                       if ($3 && set_parent_node($3, $$))
                                reparent_error(scanner, "struct reparent error");
                }
        |       ID_TYPE struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end
@@ -1361,7 +1579,7 @@ struct_type_specifier:
                        $$ = make_node(scanner, NODE_STRUCT);
                        $$->u._struct.has_body = 1;
                        $$->u._struct.name = $1->s;
-                       if (set_parent_node($3, $$))
+                       if ($3 && set_parent_node($3, $$))
                                reparent_error(scanner, "struct reparent error");
                }
        |       IDENTIFIER
@@ -1376,6 +1594,32 @@ struct_type_specifier:
                        $$->u._struct.has_body = 0;
                        $$->u._struct.name = $1->s;
                }
+       |       struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end TOK_ALIGN LPAREN unary_expression RPAREN
+               {
+                       $$ = make_node(scanner, NODE_STRUCT);
+                       $$->u._struct.has_body = 1;
+                       cds_list_add_tail(&($6)->siblings, &$$->u._struct.min_align);
+                       if ($2 && set_parent_node($2, $$))
+                               reparent_error(scanner, "struct reparent error");
+               }
+       |       IDENTIFIER struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end TOK_ALIGN LPAREN unary_expression RPAREN
+               {
+                       $$ = make_node(scanner, NODE_STRUCT);
+                       $$->u._struct.has_body = 1;
+                       $$->u._struct.name = $1->s;
+                       cds_list_add_tail(&($7)->siblings, &$$->u._struct.min_align);
+                       if ($3 && set_parent_node($3, $$))
+                               reparent_error(scanner, "struct reparent error");
+               }
+       |       ID_TYPE struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end TOK_ALIGN LPAREN unary_expression RPAREN
+               {
+                       $$ = make_node(scanner, NODE_STRUCT);
+                       $$->u._struct.has_body = 1;
+                       $$->u._struct.name = $1->s;
+                       cds_list_add_tail(&($7)->siblings, &$$->u._struct.min_align);
+                       if ($3 && set_parent_node($3, $$))
+                               reparent_error(scanner, "struct reparent error");
+               }
        ;
 
 struct_declaration_begin:
@@ -1393,7 +1637,7 @@ variant_type_specifier:
                {
                        $$ = make_node(scanner, NODE_VARIANT);
                        $$->u.variant.has_body = 1;
-                       if (set_parent_node($2, $$))
+                       if ($2 && set_parent_node($2, $$))
                                reparent_error(scanner, "variant reparent error");
                }
        |       LT IDENTIFIER GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
@@ -1401,7 +1645,7 @@ variant_type_specifier:
                        $$ = make_node(scanner, NODE_VARIANT);
                        $$->u.variant.has_body = 1;
                        $$->u.variant.choice = $2->s;
-                       if (set_parent_node($5, $$))
+                       if ($5 && set_parent_node($5, $$))
                                reparent_error(scanner, "variant reparent error");
                }
        |       LT ID_TYPE GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
@@ -1409,7 +1653,7 @@ variant_type_specifier:
                        $$ = make_node(scanner, NODE_VARIANT);
                        $$->u.variant.has_body = 1;
                        $$->u.variant.choice = $2->s;
-                       if (set_parent_node($5, $$))
+                       if ($5 && set_parent_node($5, $$))
                                reparent_error(scanner, "variant reparent error");
                }
        |       IDENTIFIER variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
@@ -1417,7 +1661,7 @@ variant_type_specifier:
                        $$ = make_node(scanner, NODE_VARIANT);
                        $$->u.variant.has_body = 1;
                        $$->u.variant.name = $1->s;
-                       if (set_parent_node($3, $$))
+                       if ($3 && set_parent_node($3, $$))
                                reparent_error(scanner, "variant reparent error");
                }
        |       IDENTIFIER LT IDENTIFIER GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
@@ -1426,7 +1670,7 @@ variant_type_specifier:
                        $$->u.variant.has_body = 1;
                        $$->u.variant.name = $1->s;
                        $$->u.variant.choice = $3->s;
-                       if (set_parent_node($6, $$))
+                       if ($6 && set_parent_node($6, $$))
                                reparent_error(scanner, "variant reparent error");
                }
        |       IDENTIFIER LT IDENTIFIER GT
@@ -1442,7 +1686,7 @@ variant_type_specifier:
                        $$->u.variant.has_body = 1;
                        $$->u.variant.name = $1->s;
                        $$->u.variant.choice = $3->s;
-                       if (set_parent_node($6, $$))
+                       if ($6 && set_parent_node($6, $$))
                                reparent_error(scanner, "variant reparent error");
                }
        |       IDENTIFIER LT ID_TYPE GT
@@ -1457,7 +1701,7 @@ variant_type_specifier:
                        $$ = make_node(scanner, NODE_VARIANT);
                        $$->u.variant.has_body = 1;
                        $$->u.variant.name = $1->s;
-                       if (set_parent_node($3, $$))
+                       if ($3 && set_parent_node($3, $$))
                                reparent_error(scanner, "variant reparent error");
                }
        |       ID_TYPE LT IDENTIFIER GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
@@ -1466,7 +1710,7 @@ variant_type_specifier:
                        $$->u.variant.has_body = 1;
                        $$->u.variant.name = $1->s;
                        $$->u.variant.choice = $3->s;
-                       if (set_parent_node($6, $$))
+                       if ($6 && set_parent_node($6, $$))
                                reparent_error(scanner, "variant reparent error");
                }
        |       ID_TYPE LT IDENTIFIER GT
@@ -1482,7 +1726,7 @@ variant_type_specifier:
                        $$->u.variant.has_body = 1;
                        $$->u.variant.name = $1->s;
                        $$->u.variant.choice = $3->s;
-                       if (set_parent_node($6, $$))
+                       if ($6 && set_parent_node($6, $$))
                                reparent_error(scanner, "variant reparent error");
                }
        |       ID_TYPE LT ID_TYPE GT
@@ -1504,32 +1748,6 @@ variant_declaration_end:
                {       pop_scope(scanner);     }
        ;
 
-declaration_specifiers_or_integer_constant:
-               declaration_specifiers
-               {       $$ = $1;                }
-       |       DECIMAL_CONSTANT
-               {
-                       $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
-                       $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
-                       sscanf(yylval.gs->s, "%" PRIu64,
-                              &$$->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%" PRIo64,
-                              &$$->u.unary_expression.u.unsigned_constant);
-               }
-       |       HEXADECIMAL_CONSTANT
-               {
-                       $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
-                       $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
-                       sscanf(yylval.gs->s, "0x%" PRIx64,
-                              &$$->u.unary_expression.u.unsigned_constant);
-               }
-       ;
-
 enum_type_specifier:
                LBRAC enumerator_list RBRAC
                {
@@ -1537,12 +1755,12 @@ enum_type_specifier:
                        $$->u._enum.has_body = 1;
                        _cds_list_splice_tail(&($2)->tmp_head, &($$)->u._enum.enumerator_list);
                }
-       |       LT declaration_specifiers GT LBRAC enumerator_list RBRAC
+       |       COLON integer_declaration_specifiers LBRAC enumerator_list RBRAC
                {
                        $$ = make_node(scanner, NODE_ENUM);
                        $$->u._enum.has_body = 1;
-                       _cds_list_splice_tail(&($2)->tmp_head, &($$)->u._enum.container_type);
-                       _cds_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
+                       ($$)->u._enum.container_type = $2;
+                       _cds_list_splice_tail(&($4)->tmp_head, &($$)->u._enum.enumerator_list);
                }
        |       IDENTIFIER LBRAC enumerator_list RBRAC
                {
@@ -1551,13 +1769,13 @@ enum_type_specifier:
                        $$->u._enum.enum_id = $1->s;
                        _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
                }
-       |       IDENTIFIER LT declaration_specifiers GT LBRAC enumerator_list RBRAC
+       |       IDENTIFIER COLON integer_declaration_specifiers LBRAC enumerator_list RBRAC
                {
                        $$ = make_node(scanner, NODE_ENUM);
                        $$->u._enum.has_body = 1;
                        $$->u._enum.enum_id = $1->s;
-                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.container_type);
-                       _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
+                       ($$)->u._enum.container_type = $3;
+                       _cds_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
                }
        |       ID_TYPE LBRAC enumerator_list RBRAC
                {
@@ -1566,13 +1784,13 @@ enum_type_specifier:
                        $$->u._enum.enum_id = $1->s;
                        _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
                }
-       |       ID_TYPE LT declaration_specifiers GT LBRAC enumerator_list RBRAC
+       |       ID_TYPE COLON integer_declaration_specifiers LBRAC enumerator_list RBRAC
                {
                        $$ = make_node(scanner, NODE_ENUM);
                        $$->u._enum.has_body = 1;
                        $$->u._enum.enum_id = $1->s;
-                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.container_type);
-                       _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
+                       ($$)->u._enum.container_type = $3;
+                       _cds_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
                }
        |       LBRAC enumerator_list COMMA RBRAC
                {
@@ -1580,12 +1798,12 @@ enum_type_specifier:
                        $$->u._enum.has_body = 1;
                        _cds_list_splice_tail(&($2)->tmp_head, &($$)->u._enum.enumerator_list);
                }
-       |       LT declaration_specifiers GT LBRAC enumerator_list COMMA RBRAC
+       |       COLON integer_declaration_specifiers LBRAC enumerator_list COMMA RBRAC
                {
                        $$ = make_node(scanner, NODE_ENUM);
                        $$->u._enum.has_body = 1;
-                       _cds_list_splice_tail(&($2)->tmp_head, &($$)->u._enum.container_type);
-                       _cds_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
+                       ($$)->u._enum.container_type = $2;
+                       _cds_list_splice_tail(&($4)->tmp_head, &($$)->u._enum.enumerator_list);
                }
        |       IDENTIFIER LBRAC enumerator_list COMMA RBRAC
                {
@@ -1594,13 +1812,13 @@ enum_type_specifier:
                        $$->u._enum.enum_id = $1->s;
                        _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
                }
-       |       IDENTIFIER LT declaration_specifiers GT LBRAC enumerator_list COMMA RBRAC
+       |       IDENTIFIER COLON integer_declaration_specifiers LBRAC enumerator_list COMMA RBRAC
                {
                        $$ = make_node(scanner, NODE_ENUM);
                        $$->u._enum.has_body = 1;
                        $$->u._enum.enum_id = $1->s;
-                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.container_type);
-                       _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
+                       ($$)->u._enum.container_type = $3;
+                       _cds_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
                }
        |       IDENTIFIER
                {
@@ -1608,13 +1826,6 @@ enum_type_specifier:
                        $$->u._enum.has_body = 0;
                        $$->u._enum.enum_id = $1->s;
                }
-       |       IDENTIFIER LT declaration_specifiers GT
-               {
-                       $$ = make_node(scanner, NODE_ENUM);
-                       $$->u._enum.has_body = 0;
-                       $$->u._enum.enum_id = $1->s;
-                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.container_type);
-               }
        |       ID_TYPE LBRAC enumerator_list COMMA RBRAC
                {
                        $$ = make_node(scanner, NODE_ENUM);
@@ -1622,13 +1833,13 @@ enum_type_specifier:
                        $$->u._enum.enum_id = $1->s;
                        _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
                }
-       |       ID_TYPE LT declaration_specifiers GT LBRAC enumerator_list COMMA RBRAC
+       |       ID_TYPE COLON integer_declaration_specifiers LBRAC enumerator_list COMMA RBRAC
                {
                        $$ = make_node(scanner, NODE_ENUM);
                        $$->u._enum.has_body = 1;
                        $$->u._enum.enum_id = $1->s;
-                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.container_type);
-                       _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
+                       ($$)->u._enum.container_type = $3;
+                       _cds_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
                }
        |       ID_TYPE
                {
@@ -1636,13 +1847,6 @@ enum_type_specifier:
                        $$->u._enum.has_body = 0;
                        $$->u._enum.enum_id = $1->s;
                }
-       |       ID_TYPE LT declaration_specifiers GT
-               {
-                       $$ = make_node(scanner, NODE_ENUM);
-                       $$->u._enum.has_body = 0;
-                       $$->u._enum.enum_id = $1->s;
-                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.container_type);
-               }
        ;
 
 struct_or_variant_declaration_list:
@@ -1663,37 +1867,61 @@ struct_or_variant_declaration_list:
 struct_or_variant_declaration:
                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);
                        $$ = make_node(scanner, NODE_STRUCT_OR_VARIANT_DECLARATION);
-                       _cds_list_splice_tail(&($1)->tmp_head, &($$)->u.struct_or_variant_declaration.declaration_specifier);
+                       ($$)->u.struct_or_variant_declaration.type_specifier_list = list;
                        _cds_list_splice_tail(&($2)->tmp_head, &($$)->u.struct_or_variant_declaration.type_declarators);
                }
        |       declaration_specifiers TYPEDEF declaration_specifiers type_declarator_list SEMICOLON
                {
+                       struct ctf_node *list;
+
                        $$ = make_node(scanner, NODE_TYPEDEF);
-                       _cds_list_splice_tail(&($1)->tmp_head, &($$)->u._typedef.declaration_specifier);
-                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.declaration_specifier);
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->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_splice_tail(&($2)->tmp_head, &($$)->u._typedef.declaration_specifier);
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->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, &($$)->u._typedef.type_declarators);
                }
        |       declaration_specifiers TYPEDEF type_declarator_list SEMICOLON
                {
+                       struct ctf_node *list;
+
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       _cds_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
                        $$ = make_node(scanner, NODE_TYPEDEF);
-                       _cds_list_splice_tail(&($1)->tmp_head, &($$)->u._typedef.declaration_specifier);
+                       ($$)->u.struct_or_variant_declaration.type_specifier_list = list;
                        _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
                }
-       |       TYPEALIAS declaration_specifiers abstract_declarator_list COLON alias_declaration_specifiers alias_abstract_declarator_list SEMICOLON
+       |       TYPEALIAS declaration_specifiers abstract_declarator_list TYPEASSIGN alias_declaration_specifiers alias_abstract_declarator_list SEMICOLON
                {
+                       struct ctf_node *list;
+
                        $$ = 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_splice_tail(&($2)->tmp_head, &($$)->u.typealias.target->u.typealias_target.declaration_specifier);
+
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->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, &($$)->u.typealias.target->u.typealias_target.type_declarators);
-                       _cds_list_splice_tail(&($5)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.declaration_specifier);
+
+                       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);
                }
        ;
@@ -1701,17 +1929,31 @@ struct_or_variant_declaration:
 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
-               {       $$ = $1;        }
+               {
+                       struct ctf_node *node;
+
+                       $$ = 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);
-                       ($$)->u.type_specifier.type = TYPESPEC_ID_TYPE;
-                       ($$)->u.type_specifier.id_type = yylval.gs->s;
+                       $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       node = make_node(scanner, NODE_TYPE_SPECIFIER);
+                       node->u.type_specifier.type = TYPESPEC_ID_TYPE;
+                       node->u.type_specifier.id_type = yylval.gs->s;
+                       cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
                }
        |       alias_declaration_specifiers CONST
                {
@@ -1720,12 +1962,12 @@ alias_declaration_specifiers:
                        $$ = $1;
                        node = make_node(scanner, NODE_TYPE_SPECIFIER);
                        node->u.type_specifier.type = TYPESPEC_CONST;
-                       cds_list_add_tail(&node->siblings, &($$)->tmp_head);
+                       cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
                }
        |       alias_declaration_specifiers type_specifier
                {
                        $$ = $1;
-                       cds_list_add_tail(&($2)->siblings, &($$)->tmp_head);
+                       cds_list_add_tail(&($2)->siblings, &($$)->u.type_specifier_list.head);
                }
        |       alias_declaration_specifiers IDENTIFIER
                {
@@ -1736,7 +1978,7 @@ alias_declaration_specifiers:
                        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, &($$)->tmp_head);
+                       cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
                }
        ;
 
@@ -1870,7 +2112,7 @@ direct_abstract_declarator:
                        $$->u.type_declarator.type = TYPEDEC_NESTED;
                        $$->u.type_declarator.u.nested.type_declarator = $2;
                }
-       |       direct_abstract_declarator LSBRAC declaration_specifiers_or_integer_constant RSBRAC
+       |       direct_abstract_declarator LSBRAC unary_expression RSBRAC
                {
                        $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
                        $$->u.type_declarator.type = TYPEDEC_NESTED;
@@ -1920,7 +2162,7 @@ direct_alias_abstract_declarator:
                        $$->u.type_declarator.type = TYPEDEC_NESTED;
                        $$->u.type_declarator.u.nested.type_declarator = $2;
                }
-       |       direct_alias_abstract_declarator LSBRAC declaration_specifiers_or_integer_constant RSBRAC
+       |       direct_alias_abstract_declarator LSBRAC unary_expression RSBRAC
                {
                        $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
                        $$->u.type_declarator.type = TYPEDEC_NESTED;
@@ -1960,7 +2202,7 @@ direct_declarator:
                        $$->u.type_declarator.type = TYPEDEC_NESTED;
                        $$->u.type_declarator.u.nested.type_declarator = $2;
                }
-       |       direct_declarator LSBRAC declaration_specifiers_or_integer_constant RSBRAC
+       |       direct_declarator LSBRAC unary_expression RSBRAC
                {
                        $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
                        $$->u.type_declarator.type = TYPEDEC_NESTED;
@@ -1994,7 +2236,7 @@ direct_type_declarator:
                        $$->u.type_declarator.type = TYPEDEC_NESTED;
                        $$->u.type_declarator.u.nested.type_declarator = $2;
                }
-       |       direct_type_declarator LSBRAC declaration_specifiers_or_integer_constant RSBRAC
+       |       direct_type_declarator LSBRAC unary_expression RSBRAC
                {
                        $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
                        $$->u.type_declarator.type = TYPEDEC_NESTED;
@@ -2053,7 +2295,7 @@ ctf_assignment_expression:
                                reparent_error(scanner, "ctf_assignment_expression left expects string");
                        _cds_list_splice_tail(&($3)->tmp_head, &($$)->u.ctf_expression.right);
                }
-       |       unary_expression TYPEASSIGN type_specifier
+       |       unary_expression TYPEASSIGN declaration_specifiers      /* Only allow struct */
                {
                        /*
                         * Because we have left and right, cannot use
@@ -2063,36 +2305,55 @@ ctf_assignment_expression:
                        _cds_list_splice_tail(&($1)->tmp_head, &($$)->u.ctf_expression.left);
                        if ($1->u.unary_expression.type != UNARY_STRING)
                                reparent_error(scanner, "ctf_assignment_expression left expects string");
-                       cds_list_add(&($3)->siblings, &($3)->tmp_head);
-                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u.ctf_expression.right);
+                       cds_list_add_tail(&($3)->siblings, &($$)->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);
                        $$ = make_node(scanner, NODE_TYPEDEF);
-                       _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.declaration_specifier);
-                       _cds_list_splice_tail(&($1)->tmp_head, &($$)->u._typedef.declaration_specifier);
+                       ($$)->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_splice_tail(&($2)->tmp_head, &($$)->u._typedef.declaration_specifier);
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->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_splice_tail(&($1)->tmp_head, &($$)->u._typedef.declaration_specifier);
+                       ($$)->u.struct_or_variant_declaration.type_specifier_list = list;
                        _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
                }
-       |       TYPEALIAS declaration_specifiers abstract_declarator_list COLON alias_declaration_specifiers alias_abstract_declarator_list
+       |       TYPEALIAS declaration_specifiers abstract_declarator_list TYPEASSIGN alias_declaration_specifiers alias_abstract_declarator_list
                {
+                       struct ctf_node *list;
+
                        $$ = 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_splice_tail(&($2)->tmp_head, &($$)->u.typealias.target->u.typealias_target.declaration_specifier);
+
+                       list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
+                       $$->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, &($$)->u.typealias.target->u.typealias_target.type_declarators);
-                       _cds_list_splice_tail(&($5)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.declaration_specifier);
+
+                       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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