X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=blobdiff_plain;f=src%2Fplugins%2Fctf%2Fcommon%2Fmetadata%2Fparser.ypp;h=eb6e32c7a94856c522a70c6e7e8ea6220deded64;hp=55a8c9ef753d6a233d5dcae2751dcfb85df68a0d;hb=HEAD;hpb=1353b066072e6c389ff35853bac83f65597e7a6a

diff --git a/src/plugins/ctf/common/metadata/parser.ypp b/src/plugins/ctf/common/metadata/parser.ypp
deleted file mode 100644
index 55a8c9ef..00000000
--- a/src/plugins/ctf/common/metadata/parser.ypp
+++ /dev/null
@@ -1,2605 +0,0 @@
-%{
-/*
- * SPDX-License-Identifier: MIT
- *
- * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * Common Trace Format Metadata Grammar.
- */
-
-#define BT_LOG_OUTPUT_LEVEL ctf_plugin_metadata_log_level
-#define BT_LOG_TAG "PLUGIN/CTF/META/PARSER"
-#include "logging.hpp"
-
-#include <stdio.h>
-#include <ctype.h>
-#include <unistd.h>
-#include <string.h>
-#include <stdlib.h>
-#include <assert.h>
-#include <glib.h>
-#include <errno.h>
-#include <inttypes.h>
-#include "common/list.h"
-#include "common/assert.h"
-#include "scanner.hpp"
-#include "ast.hpp"
-#include "objstack.hpp"
-
-#include "parser-wrap.hpp"
-
-/*
- * Avoid warning about "yynerrs" being unused, seen with bison 3.5.1 + clang 15
- * on Ubuntu 20.04.
- */
-BT_DIAG_IGNORE_UNUSED_BUT_SET_VARIABLE
-
-/* Join two lists, put "add" at the end of "head".  */
-static inline void
-_bt_list_splice_tail (struct bt_list_head *add, struct bt_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;
-	}
-}
-
-int yylex(union YYSTYPE *yyval, yyscan_t yyscanner);
-int yylex_init_extra(struct ctf_scanner *scanner, yyscan_t * ptr_yy_globals);
-int yylex_destroy(yyscan_t yyscanner);
-void yyrestart(FILE * in_str, yyscan_t yyscanner);
-int yyget_lineno(yyscan_t yyscanner);
-char *yyget_text(yyscan_t yyscanner);
-
-/*
- * Static node for out of memory errors. Only "type" is used. lineno is
- * always left at 0. The rest of the node content can be overwritten,
- * but is never used.
- */
-static struct ctf_node error_node = {
-	.parent = nullptr,
-	.siblings = {},
-	.tmp_head = {},
-	.lineno = 0,
-	.visited = 0,
-	.type = NODE_ERROR,
-};
-
-const char *node_type(struct ctf_node *node)
-{
-	switch (node->type) {
-#define ENTRY(S) case S: return #S;
-	FOREACH_CTF_NODES(ENTRY)
-#undef ENTRY
-	};
-
-	bt_common_abort();
-}
-
-void setstring(struct ctf_scanner *scanner, YYSTYPE *lvalp, const char *src)
-{
-	lvalp->s = (char *) objstack_alloc(scanner->objstack, strlen(src) + 1);
-	strcpy(lvalp->s, src);
-}
-
-static
-int str_check(size_t str_len, size_t offset, size_t len)
-{
-	/* check overflow */
-	if (offset + len < offset)
-		return -1;
-	if (offset + len > str_len)
-		return -1;
-	return 0;
-}
-
-static
-int bt_isodigit(int c)
-{
-	switch (c) {
-	case '0':
-	case '1':
-	case '2':
-	case '3':
-	case '4':
-	case '5':
-	case '6':
-	case '7':
-		return 1;
-	default:
-		return 0;
-	}
-}
-
-static
-int parse_base_sequence(const char *src, size_t len, size_t pos,
-		char *buffer, size_t *buf_len, int base)
-{
-	const size_t max_char = 3;
-	int nr_char = 0;
-
-	while (!str_check(len, pos, 1) && nr_char < max_char) {
-		char c = src[pos++];
-
-		if (base == 8) {
-			if (bt_isodigit(c))
-				buffer[nr_char++] = c;
-			else
-				break;
-		} else if (base == 16) {
-			if (isxdigit(c))
-				buffer[nr_char++] = c;
-			else
-				break;
-
-		} else {
-			/* Unsupported base */
-			return -1;
-		}
-	}
-	BT_ASSERT_DBG(nr_char > 0);
-	buffer[nr_char] = '\0';
-	*buf_len = nr_char;
-	return 0;
-}
-
-static
-int import_basic_string(struct ctf_scanner *scanner, YYSTYPE *lvalp,
-		size_t len, const char *src, char delim)
-{
-	size_t pos = 0, dpos = 0;
-
-	if (str_check(len, pos, 1))
-		return -1;
-	if (src[pos++] != delim)
-		return -1;
-
-	while (src[pos] != delim) {
-		char c;
-
-		if (str_check(len, pos, 1))
-			return -1;
-		c = src[pos++];
-		if (c == '\\') {
-			if (str_check(len, pos, 1))
-				return -1;
-			c = src[pos++];
-
-			switch (c) {
-			case 'a':
-				c = '\a';
-				break;
-			case 'b':
-				c = '\b';
-				break;
-			case 'f':
-				c = '\f';
-				break;
-			case 'n':
-				c = '\n';
-				break;
-			case 'r':
-				c = '\r';
-				break;
-			case 't':
-				c = '\t';
-				break;
-			case 'v':
-				c = '\v';
-				break;
-			case '\\':
-				c = '\\';
-				break;
-			case '\'':
-				c = '\'';
-				break;
-			case '\"':
-				c = '\"';
-				break;
-			case '?':
-				c = '?';
-				break;
-			case '0':
-			case '1':
-			case '2':
-			case '3':
-			case '4':
-			case '5':
-			case '6':
-			case '7':
-			{
-				char oct_buffer[4];
-				size_t oct_len;
-
-				if (parse_base_sequence(src, len, pos - 1,
-						oct_buffer, &oct_len, 8))
-					return -1;
-				c = strtoul(&oct_buffer[0], NULL, 8);
-				pos += oct_len - 1;
-				break;
-			}
-			case 'x':
-			{
-				char hex_buffer[4];
-				size_t hex_len;
-
-				if (parse_base_sequence(src, len, pos,
-						hex_buffer, &hex_len, 16))
-					return -1;
-				c = strtoul(&hex_buffer[0], NULL, 16);
-				pos += hex_len;
-				break;
-			}
-			default:
-				return -1;
-			}
-		}
-		if (str_check(len, dpos, 1))
-			return -1;
-		lvalp->s[dpos++] = c;
-	}
-
-	if (str_check(len, dpos, 1))
-		return -1;
-	lvalp->s[dpos++] = '\0';
-
-	if (str_check(len, pos, 1))
-		return -1;
-	if (src[pos++] != delim)
-		return -1;
-
-	if (str_check(len, pos, 1))
-		return -1;
-	if (src[pos] != '\0')
-		return -1;
-	return 0;
-}
-
-int import_string(struct ctf_scanner *scanner, YYSTYPE *lvalp,
-		const char *src, char delim)
-{
-	size_t len;
-
-	len = strlen(src) + 1;
-	lvalp->s = (char *) objstack_alloc(scanner->objstack, len);
-	if (src[0] == 'L') {
-		// TODO: import wide string
-		_BT_LOGE_APPEND_CAUSE_LINENO(yyget_lineno(scanner),
-			"wide characters are not supported as of this version: "
-			"scanner-addr=%p", scanner);
-		return -1;
-	} else {
-		return import_basic_string(scanner, lvalp, len, src, delim);
-	}
-}
-
-static void init_scope(struct ctf_scanner_scope *scope,
-		       struct ctf_scanner_scope *parent)
-{
-	scope->parent = parent;
-	scope->classes = g_hash_table_new_full(g_str_hash, g_str_equal,
-					     NULL, NULL);
-}
-
-static void finalize_scope(struct ctf_scanner_scope *scope)
-{
-	g_hash_table_destroy(scope->classes);
-}
-
-static void push_scope(struct ctf_scanner *scanner)
-{
-	struct ctf_scanner_scope *ns;
-
-	BT_LOGT("Pushing scope: scanner-addr=%p", scanner);
-	ns = (ctf_scanner_scope *) malloc(sizeof(struct ctf_scanner_scope));
-	init_scope(ns, scanner->cs);
-	scanner->cs = ns;
-}
-
-static void pop_scope(struct ctf_scanner *scanner)
-{
-	struct ctf_scanner_scope *os;
-
-	BT_LOGT("Popping scope: scanner-addr=%p", scanner);
-	os = scanner->cs;
-	scanner->cs = os->parent;
-	finalize_scope(os);
-	free(os);
-}
-
-static int lookup_type(struct ctf_scanner_scope *s, const char *id)
-{
-	int ret;
-
-	ret = GPOINTER_TO_INT(g_hash_table_lookup(s->classes, id));
-	BT_LOGT("Looked up type: scanner-addr=%p, id=\"%s\", ret=%d",
-		s, id, ret);
-	return ret;
-}
-
-int is_type(struct ctf_scanner *scanner, const char *id)
-{
-	struct ctf_scanner_scope *it;
-	int ret = 0;
-
-	for (it = scanner->cs; it; it = it->parent) {
-		if (lookup_type(it, id)) {
-			ret = 1;
-			break;
-		}
-	}
-	BT_LOGT("Found if ID is type: scanner-addr=%p, id=\"%s\", ret=%d",
-		scanner, id, ret);
-	return ret;
-}
-
-static void add_type(struct ctf_scanner *scanner, char *id)
-{
-	BT_LOGT("Adding type: scanner-addr=%p, id=\"%s\"",
-		scanner, id);
-	if (lookup_type(scanner->cs, id))
-		return;
-	g_hash_table_insert(scanner->cs->classes, id, id);
-}
-
-static struct ctf_node *make_node(struct ctf_scanner *scanner,
-				  enum node_type type)
-{
-	struct ctf_node *node;
-
-	node = (ctf_node *) objstack_alloc(scanner->objstack, sizeof(*node));
-	if (!node) {
-		_BT_LOGE_APPEND_CAUSE_LINENO(yyget_lineno(scanner->scanner),
-			"failed to allocate one stack entry: "
-			"scanner-addr=%p", scanner);
-		return &error_node;
-	}
-	node->type = type;
-	node->lineno = yyget_lineno(scanner->scanner);
-	BT_INIT_LIST_HEAD(&node->tmp_head);
-	bt_list_add(&node->siblings, &node->tmp_head);
-
-	switch (type) {
-	case NODE_ROOT:
-		node->type = NODE_ERROR;
-		BT_LOGE("Trying to create root node: scanner-addr=%p",
-			scanner);
-		break;
-	case NODE_EVENT:
-		BT_INIT_LIST_HEAD(&node->u.event.declaration_list);
-		break;
-	case NODE_STREAM:
-		BT_INIT_LIST_HEAD(&node->u.stream.declaration_list);
-		break;
-	case NODE_ENV:
-		BT_INIT_LIST_HEAD(&node->u.env.declaration_list);
-		break;
-	case NODE_TRACE:
-		BT_INIT_LIST_HEAD(&node->u.trace.declaration_list);
-		break;
-	case NODE_CLOCK:
-		BT_INIT_LIST_HEAD(&node->u.clock.declaration_list);
-		break;
-	case NODE_CALLSITE:
-		BT_INIT_LIST_HEAD(&node->u.callsite.declaration_list);
-		break;
-	case NODE_CTF_EXPRESSION:
-		BT_INIT_LIST_HEAD(&node->u.ctf_expression.left);
-		BT_INIT_LIST_HEAD(&node->u.ctf_expression.right);
-		break;
-	case NODE_UNARY_EXPRESSION:
-		break;
-	case NODE_TYPEDEF:
-		BT_INIT_LIST_HEAD(&node->u.field_class_def.field_class_declarators);
-		break;
-	case NODE_TYPEALIAS_TARGET:
-		BT_INIT_LIST_HEAD(&node->u.field_class_alias_target.field_class_declarators);
-		break;
-	case NODE_TYPEALIAS_ALIAS:
-		BT_INIT_LIST_HEAD(&node->u.field_class_alias_name.field_class_declarators);
-		break;
-	case NODE_TYPEALIAS:
-		break;
-	case NODE_TYPE_SPECIFIER:
-		break;
-	case NODE_TYPE_SPECIFIER_LIST:
-		BT_INIT_LIST_HEAD(&node->u.field_class_specifier_list.head);
-		break;
-	case NODE_POINTER:
-		break;
-	case NODE_TYPE_DECLARATOR:
-		BT_INIT_LIST_HEAD(&node->u.field_class_declarator.pointers);
-		break;
-	case NODE_FLOATING_POINT:
-		BT_INIT_LIST_HEAD(&node->u.floating_point.expressions);
-		break;
-	case NODE_INTEGER:
-		BT_INIT_LIST_HEAD(&node->u.integer.expressions);
-		break;
-	case NODE_STRING:
-		BT_INIT_LIST_HEAD(&node->u.string.expressions);
-		break;
-	case NODE_ENUMERATOR:
-		BT_INIT_LIST_HEAD(&node->u.enumerator.values);
-		break;
-	case NODE_ENUM:
-		BT_INIT_LIST_HEAD(&node->u._enum.enumerator_list);
-		break;
-	case NODE_STRUCT_OR_VARIANT_DECLARATION:
-		BT_INIT_LIST_HEAD(&node->u.struct_or_variant_declaration.field_class_declarators);
-		break;
-	case NODE_VARIANT:
-		BT_INIT_LIST_HEAD(&node->u.variant.declaration_list);
-		break;
-	case NODE_STRUCT:
-		BT_INIT_LIST_HEAD(&node->u._struct.declaration_list);
-		BT_INIT_LIST_HEAD(&node->u._struct.min_align);
-		break;
-	case NODE_UNKNOWN:
-	default:
-		node->type = NODE_ERROR;
-		BT_LOGE("Unknown node type: scanner-addr=%p, node-type=%d",
-			scanner, type);
-		break;
-	}
-
-	return node;
-}
-
-static int reparent_ctf_expression(struct ctf_node *node,
-				   struct ctf_node *parent)
-{
-	switch (parent->type) {
-	case NODE_EVENT:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.event.declaration_list);
-		break;
-	case NODE_STREAM:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.stream.declaration_list);
-		break;
-	case NODE_ENV:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.env.declaration_list);
-		break;
-	case NODE_TRACE:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.trace.declaration_list);
-		break;
-	case NODE_CLOCK:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.clock.declaration_list);
-		break;
-	case NODE_CALLSITE:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.callsite.declaration_list);
-		break;
-	case NODE_FLOATING_POINT:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.floating_point.expressions);
-		break;
-	case NODE_INTEGER:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.integer.expressions);
-		break;
-	case NODE_STRING:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.string.expressions);
-		break;
-
-	case NODE_ROOT:
-	case NODE_CTF_EXPRESSION:
-	case NODE_TYPEDEF:
-	case NODE_TYPEALIAS_TARGET:
-	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:
-	case NODE_ENUM:
-	case NODE_STRUCT_OR_VARIANT_DECLARATION:
-	case NODE_VARIANT:
-	case NODE_STRUCT:
-	case NODE_UNARY_EXPRESSION:
-		return -EPERM;
-
-	case NODE_UNKNOWN:
-	default:
-		BT_LOGE("Unknown node type: node-type=%d", parent->type);
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static int reparent_typedef(struct ctf_node *node, struct ctf_node *parent)
-{
-	switch (parent->type) {
-	case NODE_ROOT:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.root.declaration_list);
-		break;
-	case NODE_EVENT:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.event.declaration_list);
-		break;
-	case NODE_STREAM:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.stream.declaration_list);
-		break;
-	case NODE_ENV:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.env.declaration_list);
-		break;
-	case NODE_TRACE:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.trace.declaration_list);
-		break;
-	case NODE_CLOCK:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.clock.declaration_list);
-		break;
-	case NODE_CALLSITE:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.callsite.declaration_list);
-		break;
-	case NODE_VARIANT:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.variant.declaration_list);
-		break;
-	case NODE_STRUCT:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u._struct.declaration_list);
-		break;
-
-	case NODE_FLOATING_POINT:
-	case NODE_INTEGER:
-	case NODE_STRING:
-	case NODE_CTF_EXPRESSION:
-	case NODE_TYPEDEF:
-	case NODE_TYPEALIAS_TARGET:
-	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:
-	case NODE_ENUM:
-	case NODE_STRUCT_OR_VARIANT_DECLARATION:
-	case NODE_UNARY_EXPRESSION:
-		return -EPERM;
-
-	case NODE_UNKNOWN:
-	default:
-		BT_LOGE("Unknown node type: node-type=%d", parent->type);
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static int reparent_field_class_alias(struct ctf_node *node, struct ctf_node *parent)
-{
-	switch (parent->type) {
-	case NODE_ROOT:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.root.declaration_list);
-		break;
-	case NODE_EVENT:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.event.declaration_list);
-		break;
-	case NODE_STREAM:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.stream.declaration_list);
-		break;
-	case NODE_ENV:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.env.declaration_list);
-		break;
-	case NODE_TRACE:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.trace.declaration_list);
-		break;
-	case NODE_CLOCK:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.clock.declaration_list);
-		break;
-	case NODE_CALLSITE:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.callsite.declaration_list);
-		break;
-	case NODE_VARIANT:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.variant.declaration_list);
-		break;
-	case NODE_STRUCT:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u._struct.declaration_list);
-		break;
-
-	case NODE_FLOATING_POINT:
-	case NODE_INTEGER:
-	case NODE_STRING:
-	case NODE_CTF_EXPRESSION:
-	case NODE_TYPEDEF:
-	case NODE_TYPEALIAS_TARGET:
-	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:
-	case NODE_ENUM:
-	case NODE_STRUCT_OR_VARIANT_DECLARATION:
-	case NODE_UNARY_EXPRESSION:
-		return -EPERM;
-
-	case NODE_UNKNOWN:
-	default:
-		BT_LOGE("Unknown node type: node-type=%d", parent->type);
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static int reparent_field_class_specifier(struct ctf_node *node,
-				   struct ctf_node *parent)
-{
-	switch (parent->type) {
-	case NODE_TYPE_SPECIFIER_LIST:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.field_class_specifier_list.head);
-		break;
-
-	case NODE_TYPE_SPECIFIER:
-	case NODE_EVENT:
-	case NODE_STREAM:
-	case NODE_ENV:
-	case NODE_TRACE:
-	case NODE_CLOCK:
-	case NODE_CALLSITE:
-	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:
-		BT_LOGE("Unknown node type: node-type=%d", parent->type);
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static int reparent_field_class_specifier_list(struct ctf_node *node,
-					struct ctf_node *parent)
-{
-	switch (parent->type) {
-	case NODE_ROOT:
-		bt_list_add_tail(&node->siblings, &parent->u.root.declaration_list);
-		break;
-	case NODE_EVENT:
-		bt_list_add_tail(&node->siblings, &parent->u.event.declaration_list);
-		break;
-	case NODE_STREAM:
-		bt_list_add_tail(&node->siblings, &parent->u.stream.declaration_list);
-		break;
-	case NODE_ENV:
-		bt_list_add_tail(&node->siblings, &parent->u.env.declaration_list);
-		break;
-	case NODE_TRACE:
-		bt_list_add_tail(&node->siblings, &parent->u.trace.declaration_list);
-		break;
-	case NODE_CLOCK:
-		bt_list_add_tail(&node->siblings, &parent->u.clock.declaration_list);
-		break;
-	case NODE_CALLSITE:
-		bt_list_add_tail(&node->siblings, &parent->u.callsite.declaration_list);
-		break;
-	case NODE_VARIANT:
-		bt_list_add_tail(&node->siblings, &parent->u.variant.declaration_list);
-		break;
-	case NODE_STRUCT:
-		bt_list_add_tail(&node->siblings, &parent->u._struct.declaration_list);
-		break;
-	case NODE_TYPEDEF:
-		parent->u.field_class_def.field_class_specifier_list = node;
-		break;
-	case NODE_TYPEALIAS_TARGET:
-		parent->u.field_class_alias_target.field_class_specifier_list = node;
-		break;
-	case NODE_TYPEALIAS_ALIAS:
-		parent->u.field_class_alias_name.field_class_specifier_list = node;
-		break;
-	case NODE_ENUM:
-		parent->u._enum.container_field_class = node;
-		break;
-	case NODE_STRUCT_OR_VARIANT_DECLARATION:
-		parent->u.struct_or_variant_declaration.field_class_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_POINTER:
-	case NODE_ENUMERATOR:
-	case NODE_UNARY_EXPRESSION:
-		return -EPERM;
-
-	case NODE_UNKNOWN:
-	default:
-		BT_LOGE("Unknown node type: node-type=%d", parent->type);
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static int reparent_field_class_declarator(struct ctf_node *node,
-				    struct ctf_node *parent)
-{
-	switch (parent->type) {
-	case NODE_TYPE_DECLARATOR:
-		parent->u.field_class_declarator.type = TYPEDEC_NESTED;
-		parent->u.field_class_declarator.u.nested.field_class_declarator = node;
-		break;
-	case NODE_STRUCT_OR_VARIANT_DECLARATION:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.struct_or_variant_declaration.field_class_declarators);
-		break;
-	case NODE_TYPEDEF:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.field_class_def.field_class_declarators);
-		break;
-	case NODE_TYPEALIAS_TARGET:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.field_class_alias_target.field_class_declarators);
-		break;
-	case NODE_TYPEALIAS_ALIAS:
-		_bt_list_splice_tail(&node->tmp_head, &parent->u.field_class_alias_name.field_class_declarators);
-		break;
-
-	case NODE_ROOT:
-	case NODE_EVENT:
-	case NODE_STREAM:
-	case NODE_ENV:
-	case NODE_TRACE:
-	case NODE_CLOCK:
-	case NODE_CALLSITE:
-	case NODE_VARIANT:
-	case NODE_STRUCT:
-	case NODE_TYPEALIAS:
-	case NODE_ENUM:
-	case NODE_FLOATING_POINT:
-	case NODE_INTEGER:
-	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:
-		return -EPERM;
-
-	case NODE_UNKNOWN:
-	default:
-		BT_LOGE("Unknown node type: node-type=%d", parent->type);
-		return -EINVAL;
-	}
-	return 0;
-}
-
-/*
- * set_parent_node
- *
- * 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 set_parent_node(struct ctf_node *node,
-			 struct ctf_node *parent)
-{
-	if (!node || !parent)
-		return -ENOENT;
-
-	/* Note: Linking to parent will be done only by an external visitor */
-
-	switch (node->type) {
-	case NODE_ROOT:
-		BT_LOGE_STR("Trying to reparent root node.");
-		return -EINVAL;
-
-	case NODE_EVENT:
-		if (parent->type == NODE_ROOT) {
-			_bt_list_splice_tail(&node->tmp_head, &parent->u.root.event);
-		} else {
-			return -EPERM;
-		}
-		break;
-	case NODE_STREAM:
-		if (parent->type == NODE_ROOT) {
-			_bt_list_splice_tail(&node->tmp_head, &parent->u.root.stream);
-		} else {
-			return -EPERM;
-		}
-		break;
-	case NODE_ENV:
-		if (parent->type == NODE_ROOT) {
-			_bt_list_splice_tail(&node->tmp_head, &parent->u.root.env);
-		} else {
-			return -EPERM;
-		}
-		break;
-	case NODE_TRACE:
-		if (parent->type == NODE_ROOT) {
-			_bt_list_splice_tail(&node->tmp_head, &parent->u.root.trace);
-		} else {
-			return -EPERM;
-		}
-		break;
-	case NODE_CLOCK:
-		if (parent->type == NODE_ROOT) {
-			_bt_list_splice_tail(&node->tmp_head, &parent->u.root.clock);
-		} else {
-			return -EPERM;
-		}
-		break;
-	case NODE_CALLSITE:
-		if (parent->type == NODE_ROOT) {
-			_bt_list_splice_tail(&node->tmp_head, &parent->u.root.callsite);
-		} else {
-			return -EPERM;
-		}
-		break;
-
-	case NODE_CTF_EXPRESSION:
-		return reparent_ctf_expression(node, parent);
-	case NODE_UNARY_EXPRESSION:
-		if (parent->type == NODE_TYPE_DECLARATOR)
-			parent->u.field_class_declarator.bitfield_len = node;
-		else
-			return -EPERM;
-		break;
-
-	case NODE_TYPEDEF:
-		return reparent_typedef(node, parent);
-	case NODE_TYPEALIAS_TARGET:
-		if (parent->type == NODE_TYPEALIAS)
-			parent->u.field_class_alias.target = node;
-		else
-			return -EINVAL;
-		/* fall-through */
-	case NODE_TYPEALIAS_ALIAS:
-		if (parent->type == NODE_TYPEALIAS)
-			parent->u.field_class_alias.alias = node;
-		else
-			return -EINVAL;
-		/* fall-through */
-	case NODE_TYPEALIAS:
-		return reparent_field_class_alias(node, parent);
-
-	case NODE_POINTER:
-		if (parent->type == NODE_TYPE_DECLARATOR) {
-			_bt_list_splice_tail(&node->tmp_head, &parent->u.field_class_declarator.pointers);
-		} else
-			return -EPERM;
-		break;
-	case NODE_TYPE_DECLARATOR:
-		return reparent_field_class_declarator(node, parent);
-
-	case NODE_TYPE_SPECIFIER_LIST:
-		return reparent_field_class_specifier_list(node, parent);
-
-	case NODE_TYPE_SPECIFIER:
-		return reparent_field_class_specifier(node, parent);
-
-	case NODE_FLOATING_POINT:
-	case NODE_INTEGER:
-	case NODE_STRING:
-	case NODE_ENUM:
-	case NODE_VARIANT:
-	case NODE_STRUCT:
-		return -EINVAL;	/* Dealt with internally within grammar */
-
-	case NODE_ENUMERATOR:
-		if (parent->type == NODE_ENUM) {
-			_bt_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:
-			_bt_list_splice_tail(&node->tmp_head, &parent->u._struct.declaration_list);
-			break;
-		case NODE_VARIANT:
-			_bt_list_splice_tail(&node->tmp_head, &parent->u.variant.declaration_list);
-			break;
-		default:
-			return -EINVAL;
-		}
-		break;
-
-	case NODE_UNKNOWN:
-	default:
-		BT_LOGE("Unknown node type: node-type=%d", parent->type);
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static
-void yyerror(struct ctf_scanner *scanner, yyscan_t yyscanner, const char *str)
-{
-	_BT_LOGE_APPEND_CAUSE_LINENO(yyget_lineno(scanner->scanner),
-		"%s: token=\"%s\"", str, yyget_text(scanner->scanner));
-}
-
-#define reparent_error(scanner, str)				\
-do {								\
-	yyerror(scanner, scanner->scanner, YY_("reparent_error: " str)); \
-	YYERROR;						\
-} while (0)
-
-static struct ctf_ast *ctf_ast_alloc(struct ctf_scanner *scanner)
-{
-	struct ctf_ast *ast;
-
-	ast = (ctf_ast *) objstack_alloc(scanner->objstack, sizeof(*ast));
-	if (!ast)
-		return NULL;
-	ast->root.type = NODE_ROOT;
-	BT_INIT_LIST_HEAD(&ast->root.tmp_head);
-	BT_INIT_LIST_HEAD(&ast->root.u.root.declaration_list);
-	BT_INIT_LIST_HEAD(&ast->root.u.root.trace);
-	BT_INIT_LIST_HEAD(&ast->root.u.root.env);
-	BT_INIT_LIST_HEAD(&ast->root.u.root.stream);
-	BT_INIT_LIST_HEAD(&ast->root.u.root.event);
-	BT_INIT_LIST_HEAD(&ast->root.u.root.clock);
-	BT_INIT_LIST_HEAD(&ast->root.u.root.callsite);
-	return ast;
-}
-
-int ctf_scanner_append_ast(struct ctf_scanner *scanner, FILE *input)
-{
-	/* Start processing new stream */
-	yyrestart(input, scanner->scanner);
-	return yyparse(scanner, scanner->scanner);
-}
-
-struct ctf_scanner *ctf_scanner_alloc(void)
-{
-	struct ctf_scanner *scanner;
-	int ret;
-
-	scanner = (ctf_scanner *) malloc(sizeof(*scanner));
-	if (!scanner)
-		return NULL;
-	memset(scanner, 0, sizeof(*scanner));
-	ret = yylex_init_extra(scanner, &scanner->scanner);
-	if (ret) {
-		BT_LOGE("yylex_init_extra() failed: ret=%d", ret);
-		goto cleanup_scanner;
-	}
-	scanner->objstack = objstack_create();
-	if (!scanner->objstack)
-		goto cleanup_lexer;
-	scanner->ast = ctf_ast_alloc(scanner);
-	if (!scanner->ast)
-		goto cleanup_objstack;
-	init_scope(&scanner->root_scope, NULL);
-	scanner->cs = &scanner->root_scope;
-
-	return scanner;
-
-cleanup_objstack:
-	objstack_destroy(scanner->objstack);
-cleanup_lexer:
-	ret = yylex_destroy(scanner->scanner);
-	if (!ret)
-		BT_LOGE("yylex_destroy() failed: scanner-addr=%p, ret=%d",
-			scanner, ret);
-cleanup_scanner:
-	free(scanner);
-	return NULL;
-}
-
-void ctf_scanner_free(struct ctf_scanner *scanner)
-{
-	int ret;
-
-	if (!scanner)
-		return;
-
-	struct ctf_scanner_scope *scope = scanner->cs;
-
-	do {
-		struct ctf_scanner_scope *parent = scope->parent;
-		finalize_scope(scope);
-
-		/*
-		 * The root scope is allocated within the ctf_scanner structure,
-		 * do doesn't need freeing.  All others are allocated on their
-		 * own.
-		 */
-		if (scope != &scanner->root_scope)
-			free(scope);
-
-		scope = parent;
-	} while (scope);
-
-	objstack_destroy(scanner->objstack);
-	ret = yylex_destroy(scanner->scanner);
-	if (ret)
-		BT_LOGE("yylex_destroy() failed: scanner-addr=%p, ret=%d",
-			scanner, ret);
-	free(scanner);
-}
-
-/*
- * The bison-provided version of strlen (yystrlen) generates a benign
- * -Wnull-dereference warning.  That version is used when building on cygwin,
- * for example, but you can also enable it by hand (to test) by removing the
- * preprocessor conditional around it.
- *
- * Define yystrlen such that it will always use strlen.  As far as we know,
- * strlen provided by all the platforms we use is reliable.
- */
-#define yystrlen strlen
-
-%}
-
-/*
- * This ends up in parser.h and makes sure those who want to include it pass
- * through parser-wrap.h.
- */
-%code requires {
-#ifndef ALLOW_INCLUDE_PARSER_H
-# error "Don't include parser.h directly, include parser-wrap.h instead."
-#endif
-}
-
-%code provides {
-	void setstring(struct ctf_scanner *scanner, YYSTYPE *lvalp, const char *src);
-
-	int import_string(struct ctf_scanner *scanner, YYSTYPE *lvalp, const char *src, char delim);
-}
-
-%define api.pure
-	/* %locations */
-%error-verbose
-%parse-param {struct ctf_scanner *scanner}
-%parse-param {yyscan_t yyscanner}
-%lex-param {yyscan_t yyscanner}
-/*
- * 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 CTF_INTEGER_LITERAL CTF_STRING_LITERAL CTF_CHARACTER_LITERAL CTF_LSBRAC CTF_RSBRAC CTF_LPAREN CTF_RPAREN CTF_LBRAC CTF_RBRAC CTF_RARROW CTF_STAR CTF_PLUS CTF_MINUS CTF_LT CTF_GT CTF_TYPEASSIGN CTF_COLON CTF_SEMICOLON CTF_DOTDOTDOT CTF_DOT CTF_EQUAL CTF_COMMA CTF_CONST CTF_CHAR CTF_DOUBLE CTF_ENUM CTF_ENV CTF_EVENT CTF_FLOATING_POINT CTF_FLOAT CTF_INTEGER CTF_INT CTF_LONG CTF_SHORT CTF_SIGNED CTF_STREAM CTF_STRING CTF_STRUCT CTF_TRACE CTF_CALLSITE CTF_CLOCK CTF_TYPEALIAS CTF_TYPEDEF CTF_UNSIGNED CTF_VARIANT CTF_VOID CTF_BOOL CTF_COMPLEX CTF_IMAGINARY CTF_TOK_ALIGN
-%token <s> IDENTIFIER ID_TYPE
-%token CTF_ERROR
-%union
-{
-	long long ll;
-	unsigned long long ull;
-	char c;
-	char *s;
-	struct ctf_node *n;
-}
-
-%type <s> CTF_STRING_LITERAL CTF_CHARACTER_LITERAL
-
-%type <s> keywords
-
-%type <ull> CTF_INTEGER_LITERAL
-%type <n> postfix_expression unary_expression unary_expression_or_range
-
-%type <n> declaration
-%type <n> event_declaration
-%type <n> stream_declaration
-%type <n> env_declaration
-%type <n> trace_declaration
-%type <n> clock_declaration
-%type <n> callsite_declaration
-%type <n> integer_declaration_specifiers
-%type <n> declaration_specifiers
-%type <n> alias_declaration_specifiers
-
-%type <n> field_class_declarator_list
-%type <n> integer_field_class_specifier
-%type <n> field_class_specifier
-%type <n> struct_class_specifier
-%type <n> variant_field_class_specifier
-%type <n> enum_field_class_specifier
-%type <n> struct_or_variant_declaration_list
-%type <n> struct_or_variant_declaration
-%type <n> struct_or_variant_declarator_list
-%type <n> struct_or_variant_declarator
-%type <n> enumerator_list
-%type <n> enumerator
-%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> field_class_declarator
-%type <n> direct_field_class_declarator
-%type <n> pointer
-%type <n> ctf_assignment_expression_list
-%type <n> ctf_assignment_expression
-
-%%
-
-file:
-		declaration
-		{
-			if (set_parent_node($1, &ctf_scanner_get_ast(scanner)->root))
-				reparent_error(scanner, "error reparenting to root");
-		}
-	|	file declaration
-		{
-			if (set_parent_node($2, &ctf_scanner_get_ast(scanner)->root))
-				reparent_error(scanner, "error reparenting to root");
-		}
-	;
-
-keywords:
-		CTF_VOID
-		{	$$ = yylval.s;		}
-	|	CTF_CHAR
-		{	$$ = yylval.s;		}
-	|	CTF_SHORT
-		{	$$ = yylval.s;		}
-	|	CTF_INT
-		{	$$ = yylval.s;		}
-	|	CTF_LONG
-		{	$$ = yylval.s;		}
-	|	CTF_FLOAT
-		{	$$ = yylval.s;		}
-	|	CTF_DOUBLE
-		{	$$ = yylval.s;		}
-	|	CTF_SIGNED
-		{	$$ = yylval.s;		}
-	|	CTF_UNSIGNED
-		{	$$ = yylval.s;		}
-	|	CTF_BOOL
-		{	$$ = yylval.s;		}
-	|	CTF_COMPLEX
-		{	$$ = yylval.s;		}
-	|	CTF_IMAGINARY
-		{	$$ = yylval.s;		}
-	|	CTF_FLOATING_POINT
-		{	$$ = yylval.s;		}
-	|	CTF_INTEGER
-		{	$$ = yylval.s;		}
-	|	CTF_STRING
-		{	$$ = yylval.s;		}
-	|	CTF_ENUM
-		{	$$ = yylval.s;		}
-	|	CTF_VARIANT
-		{	$$ = yylval.s;		}
-	|	CTF_STRUCT
-		{	$$ = yylval.s;		}
-	|	CTF_CONST
-		{	$$ = yylval.s;		}
-	|	CTF_TYPEDEF
-		{	$$ = yylval.s;		}
-	|	CTF_EVENT
-		{	$$ = yylval.s;		}
-	|	CTF_STREAM
-		{	$$ = yylval.s;		}
-	|	CTF_ENV
-		{	$$ = yylval.s;		}
-	|	CTF_TRACE
-		{	$$ = yylval.s;		}
-	|	CTF_CLOCK
-		{	$$ = yylval.s;		}
-	|	CTF_CALLSITE
-		{	$$ = yylval.s;		}
-	|	CTF_TOK_ALIGN
-		{	$$ = yylval.s;		}
-	;
-
-
-/* 2: Phrase structure grammar */
-
-postfix_expression:
-		IDENTIFIER
-		{
-			$$ = make_node(scanner, NODE_UNARY_EXPRESSION);
-			$$->u.unary_expression.type = UNARY_STRING;
-			$$->u.unary_expression.u.string = yylval.s;
-		}
-	|	ID_TYPE
-		{
-			$$ = make_node(scanner, NODE_UNARY_EXPRESSION);
-			$$->u.unary_expression.type = UNARY_STRING;
-			$$->u.unary_expression.u.string = yylval.s;
-		}
-	|	keywords
-		{
-			$$ = make_node(scanner, NODE_UNARY_EXPRESSION);
-			$$->u.unary_expression.type = UNARY_STRING;
-			$$->u.unary_expression.u.string = yylval.s;
-		}
-	|	CTF_INTEGER_LITERAL
-		{
-			$$ = make_node(scanner, NODE_UNARY_EXPRESSION);
-			$$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
-			$$->u.unary_expression.u.unsigned_constant = $1;
-		}
-	|	CTF_STRING_LITERAL
-		{
-			$$ = make_node(scanner, NODE_UNARY_EXPRESSION);
-			$$->u.unary_expression.type = UNARY_STRING;
-			$$->u.unary_expression.u.string = $1;
-		}
-	|	CTF_CHARACTER_LITERAL
-		{
-			$$ = make_node(scanner, NODE_UNARY_EXPRESSION);
-			$$->u.unary_expression.type = UNARY_STRING;
-			$$->u.unary_expression.u.string = $1;
-		}
-	|	CTF_LPAREN unary_expression CTF_RPAREN
-		{
-			$$ = $2;
-		}
-	|	postfix_expression CTF_LSBRAC unary_expression CTF_RSBRAC
-		{
-			$$ = make_node(scanner, NODE_UNARY_EXPRESSION);
-			$$->u.unary_expression.type = UNARY_SBRAC;
-			$$->u.unary_expression.u.sbrac_exp = $3;
-			bt_list_splice(&($1)->tmp_head, &($$)->tmp_head);
-			bt_list_add_tail(&($$)->siblings, &($$)->tmp_head);
-		}
-	|	postfix_expression CTF_DOT IDENTIFIER
-		{
-			$$ = make_node(scanner, NODE_UNARY_EXPRESSION);
-			$$->u.unary_expression.type = UNARY_STRING;
-			$$->u.unary_expression.u.string = yylval.s;
-			$$->u.unary_expression.link = UNARY_DOTLINK;
-			bt_list_splice(&($1)->tmp_head, &($$)->tmp_head);
-			bt_list_add_tail(&($$)->siblings, &($$)->tmp_head);
-		}
-	|	postfix_expression CTF_DOT ID_TYPE
-		{
-			$$ = make_node(scanner, NODE_UNARY_EXPRESSION);
-			$$->u.unary_expression.type = UNARY_STRING;
-			$$->u.unary_expression.u.string = yylval.s;
-			$$->u.unary_expression.link = UNARY_DOTLINK;
-			bt_list_splice(&($1)->tmp_head, &($$)->tmp_head);
-			bt_list_add_tail(&($$)->siblings, &($$)->tmp_head);
-		}
-	|	postfix_expression CTF_DOT keywords
-		{
-			$$ = make_node(scanner, NODE_UNARY_EXPRESSION);
-			$$->u.unary_expression.type = UNARY_STRING;
-			$$->u.unary_expression.u.string = yylval.s;
-			$$->u.unary_expression.link = UNARY_DOTLINK;
-			bt_list_splice(&($1)->tmp_head, &($$)->tmp_head);
-			bt_list_add_tail(&($$)->siblings, &($$)->tmp_head);
-		}
-	|	postfix_expression CTF_RARROW IDENTIFIER
-		{
-			$$ = make_node(scanner, NODE_UNARY_EXPRESSION);
-			$$->u.unary_expression.type = UNARY_STRING;
-			$$->u.unary_expression.u.string = yylval.s;
-			$$->u.unary_expression.link = UNARY_ARROWLINK;
-			bt_list_splice(&($1)->tmp_head, &($$)->tmp_head);
-			bt_list_add_tail(&($$)->siblings, &($$)->tmp_head);
-		}
-	|	postfix_expression CTF_RARROW ID_TYPE
-		{
-			$$ = make_node(scanner, NODE_UNARY_EXPRESSION);
-			$$->u.unary_expression.type = UNARY_STRING;
-			$$->u.unary_expression.u.string = yylval.s;
-			$$->u.unary_expression.link = UNARY_ARROWLINK;
-			bt_list_splice(&($1)->tmp_head, &($$)->tmp_head);
-			bt_list_add_tail(&($$)->siblings, &($$)->tmp_head);
-		}
-	;
-
-unary_expression:
-		postfix_expression
-		{	$$ = $1;				}
-	|	CTF_PLUS postfix_expression
-		{
-			$$ = $2;
-			if ($$->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT
-				&& $$->u.unary_expression.type != UNARY_SIGNED_CONSTANT) {
-				reparent_error(scanner, "expecting numeric constant");
-			}
-		}
-	|	CTF_MINUS postfix_expression
-		{
-			$$ = $2;
-			if ($$->u.unary_expression.type == UNARY_UNSIGNED_CONSTANT) {
-				$$->u.unary_expression.type = UNARY_SIGNED_CONSTANT;
-				$$->u.unary_expression.u.signed_constant =
-					-($$->u.unary_expression.u.unsigned_constant);
-			} else if ($$->u.unary_expression.type == UNARY_SIGNED_CONSTANT) {
-				$$->u.unary_expression.u.signed_constant =
-					-($$->u.unary_expression.u.signed_constant);
-			} else {
-				reparent_error(scanner, "expecting numeric constant");
-			}
-		}
-	;
-
-unary_expression_or_range:
-		unary_expression CTF_DOTDOTDOT unary_expression
-		{
-			$$ = $1;
-			_bt_list_splice_tail(&($3)->tmp_head, &($$)->tmp_head);
-			$3->u.unary_expression.link = UNARY_DOTDOTDOT;
-		}
-	|	unary_expression
-		{	$$ = $1;		}
-	;
-
-/* 2.2: Declarations */
-
-declaration:
-		declaration_specifiers CTF_SEMICOLON
-		{	$$ = $1;	}
-	|	event_declaration
-		{	$$ = $1;	}
-	|	stream_declaration
-		{	$$ = $1;	}
-	|	env_declaration
-		{	$$ = $1;	}
-	|	trace_declaration
-		{	$$ = $1;	}
-	|	clock_declaration
-		{	$$ = $1;	}
-	|	callsite_declaration
-		{	$$ = $1;	}
-	|	declaration_specifiers CTF_TYPEDEF declaration_specifiers field_class_declarator_list CTF_SEMICOLON
-		{
-			struct ctf_node *list;
-
-			$$ = make_node(scanner, NODE_TYPEDEF);
-			list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			$$->u.field_class_def.field_class_specifier_list = list;
-			_bt_list_splice_tail(&($1)->u.field_class_specifier_list.head, &list->u.field_class_specifier_list.head);
-			_bt_list_splice_tail(&($3)->u.field_class_specifier_list.head, &list->u.field_class_specifier_list.head);
-			_bt_list_splice_tail(&($4)->tmp_head, &($$)->u.field_class_def.field_class_declarators);
-		}
-	|	CTF_TYPEDEF declaration_specifiers field_class_declarator_list CTF_SEMICOLON
-		{
-			struct ctf_node *list;
-
-			$$ = make_node(scanner, NODE_TYPEDEF);
-			list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			$$->u.field_class_def.field_class_specifier_list = list;
-			_bt_list_splice_tail(&($2)->u.field_class_specifier_list.head, &list->u.field_class_specifier_list.head);
-			_bt_list_splice_tail(&($3)->tmp_head, &($$)->u.field_class_def.field_class_declarators);
-		}
-	|	declaration_specifiers CTF_TYPEDEF field_class_declarator_list CTF_SEMICOLON
-		{
-			struct ctf_node *list;
-
-			$$ = make_node(scanner, NODE_TYPEDEF);
-			list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			$$->u.field_class_def.field_class_specifier_list = list;
-			_bt_list_splice_tail(&($1)->u.field_class_specifier_list.head, &list->u.field_class_specifier_list.head);
-			_bt_list_splice_tail(&($3)->tmp_head, &($$)->u.field_class_def.field_class_declarators);
-		}
-	|	CTF_TYPEALIAS declaration_specifiers abstract_declarator_list CTF_TYPEASSIGN alias_declaration_specifiers alias_abstract_declarator_list CTF_SEMICOLON
-		{
-			struct ctf_node *list;
-
-			$$ = make_node(scanner, NODE_TYPEALIAS);
-			$$->u.field_class_alias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
-			$$->u.field_class_alias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
-
-			list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			$$->u.field_class_alias.target->u.field_class_alias_target.field_class_specifier_list = list;
-			_bt_list_splice_tail(&($2)->u.field_class_specifier_list.head, &list->u.field_class_specifier_list.head);
-			_bt_list_splice_tail(&($3)->tmp_head, &($$)->u.field_class_alias.target->u.field_class_alias_target.field_class_declarators);
-
-			list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			$$->u.field_class_alias.alias->u.field_class_alias_name.field_class_specifier_list = list;
-			_bt_list_splice_tail(&($5)->u.field_class_specifier_list.head, &list->u.field_class_specifier_list.head);
-			_bt_list_splice_tail(&($6)->tmp_head, &($$)->u.field_class_alias.alias->u.field_class_alias_name.field_class_declarators);
-		}
-	;
-
-event_declaration:
-		event_declaration_begin event_declaration_end
-		{
-			$$ = make_node(scanner, NODE_EVENT);
-		}
-	|	event_declaration_begin ctf_assignment_expression_list event_declaration_end
-		{
-			$$ = make_node(scanner, NODE_EVENT);
-			if (set_parent_node($2, $$))
-				reparent_error(scanner, "event_declaration");
-		}
-	;
-
-event_declaration_begin:
-		CTF_EVENT CTF_LBRAC
-		{	push_scope(scanner);	}
-	;
-
-event_declaration_end:
-		CTF_RBRAC CTF_SEMICOLON
-		{	pop_scope(scanner);	}
-	;
-
-
-stream_declaration:
-		stream_declaration_begin stream_declaration_end
-		{
-			$$ = make_node(scanner, NODE_STREAM);
-		}
-	|	stream_declaration_begin ctf_assignment_expression_list stream_declaration_end
-		{
-			$$ = make_node(scanner, NODE_STREAM);
-			if (set_parent_node($2, $$))
-				reparent_error(scanner, "stream_declaration");
-		}
-	;
-
-stream_declaration_begin:
-		CTF_STREAM CTF_LBRAC
-		{	push_scope(scanner);	}
-	;
-
-stream_declaration_end:
-		CTF_RBRAC CTF_SEMICOLON
-		{	pop_scope(scanner);	}
-	;
-
-env_declaration:
-		env_declaration_begin env_declaration_end
-		{
-			$$ = make_node(scanner, NODE_ENV);
-		}
-	|	env_declaration_begin ctf_assignment_expression_list env_declaration_end
-		{
-			$$ = make_node(scanner, NODE_ENV);
-			if (set_parent_node($2, $$))
-				reparent_error(scanner, "env declaration");
-		}
-	;
-
-env_declaration_begin:
-		CTF_ENV CTF_LBRAC
-		{	push_scope(scanner);	}
-	;
-
-env_declaration_end:
-		CTF_RBRAC CTF_SEMICOLON
-		{	pop_scope(scanner);	}
-	;
-
-trace_declaration:
-		trace_declaration_begin trace_declaration_end
-		{
-			$$ = make_node(scanner, NODE_TRACE);
-		}
-	|	trace_declaration_begin ctf_assignment_expression_list trace_declaration_end
-		{
-			$$ = make_node(scanner, NODE_TRACE);
-			if (set_parent_node($2, $$))
-				reparent_error(scanner, "trace_declaration");
-		}
-	;
-
-trace_declaration_begin:
-		CTF_TRACE CTF_LBRAC
-		{	push_scope(scanner);	}
-	;
-
-trace_declaration_end:
-		CTF_RBRAC CTF_SEMICOLON
-		{	pop_scope(scanner);	}
-	;
-
-clock_declaration:
-		CTF_CLOCK clock_declaration_begin clock_declaration_end
-		{
-			$$ = make_node(scanner, NODE_CLOCK);
-		}
-	|	CTF_CLOCK clock_declaration_begin ctf_assignment_expression_list clock_declaration_end
-		{
-			$$ = make_node(scanner, NODE_CLOCK);
-			if (set_parent_node($3, $$))
-				reparent_error(scanner, "trace_declaration");
-		}
-	;
-
-clock_declaration_begin:
-		CTF_LBRAC
-		{	push_scope(scanner);	}
-	;
-
-clock_declaration_end:
-		CTF_RBRAC CTF_SEMICOLON
-		{	pop_scope(scanner);	}
-	;
-
-callsite_declaration:
-		CTF_CALLSITE callsite_declaration_begin callsite_declaration_end
-		{
-			$$ = make_node(scanner, NODE_CALLSITE);
-		}
-	|	CTF_CALLSITE callsite_declaration_begin ctf_assignment_expression_list callsite_declaration_end
-		{
-			$$ = make_node(scanner, NODE_CALLSITE);
-			if (set_parent_node($3, $$))
-				reparent_error(scanner, "trace_declaration");
-		}
-	;
-
-callsite_declaration_begin:
-		CTF_LBRAC
-		{	push_scope(scanner);	}
-	;
-
-callsite_declaration_end:
-		CTF_RBRAC CTF_SEMICOLON
-		{	pop_scope(scanner);	}
-	;
-
-integer_declaration_specifiers:
-		CTF_CONST
-		{
-			struct ctf_node *node;
-
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			node = make_node(scanner, NODE_TYPE_SPECIFIER);
-			node->u.field_class_specifier.type = TYPESPEC_CONST;
-			bt_list_add_tail(&node->siblings, &($$)->u.field_class_specifier_list.head);
-		}
-	|	integer_field_class_specifier
-		{
-			struct ctf_node *node;
-
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			node = $1;
-			bt_list_add_tail(&node->siblings, &($$)->u.field_class_specifier_list.head);
-		}
-	|	integer_declaration_specifiers CTF_CONST
-		{
-			struct ctf_node *node;
-
-			$$ = $1;
-			node = make_node(scanner, NODE_TYPE_SPECIFIER);
-			node->u.field_class_specifier.type = TYPESPEC_CONST;
-			bt_list_add_tail(&node->siblings, &($$)->u.field_class_specifier_list.head);
-		}
-	|	integer_declaration_specifiers integer_field_class_specifier
-		{
-			$$ = $1;
-			bt_list_add_tail(&($2)->siblings, &($$)->u.field_class_specifier_list.head);
-		}
-	;
-
-declaration_specifiers:
-		CTF_CONST
-		{
-			struct ctf_node *node;
-
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			node = make_node(scanner, NODE_TYPE_SPECIFIER);
-			node->u.field_class_specifier.type = TYPESPEC_CONST;
-			bt_list_add_tail(&node->siblings, &($$)->u.field_class_specifier_list.head);
-		}
-	|	field_class_specifier
-		{
-			struct ctf_node *node;
-
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			node = $1;
-			bt_list_add_tail(&node->siblings, &($$)->u.field_class_specifier_list.head);
-		}
-	|	declaration_specifiers CTF_CONST
-		{
-			struct ctf_node *node;
-
-			$$ = $1;
-			node = make_node(scanner, NODE_TYPE_SPECIFIER);
-			node->u.field_class_specifier.type = TYPESPEC_CONST;
-			bt_list_add_tail(&node->siblings, &($$)->u.field_class_specifier_list.head);
-		}
-	|	declaration_specifiers field_class_specifier
-		{
-			$$ = $1;
-			bt_list_add_tail(&($2)->siblings, &($$)->u.field_class_specifier_list.head);
-		}
-	;
-
-field_class_declarator_list:
-		field_class_declarator
-		{	$$ = $1;	}
-	|	field_class_declarator_list CTF_COMMA field_class_declarator
-		{
-			$$ = $1;
-			bt_list_add_tail(&($3)->siblings, &($$)->tmp_head);
-		}
-	;
-
-integer_field_class_specifier:
-		CTF_CHAR
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_CHAR;
-		}
-	|	CTF_SHORT
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_SHORT;
-		}
-	|	CTF_INT
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_INT;
-		}
-	|	CTF_LONG
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_LONG;
-		}
-	|	CTF_SIGNED
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_SIGNED;
-		}
-	|	CTF_UNSIGNED
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_UNSIGNED;
-		}
-	|	CTF_BOOL
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_BOOL;
-		}
-	|	ID_TYPE
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_ID_TYPE;
-			$$->u.field_class_specifier.id_type = yylval.s;
-		}
-	|	CTF_INTEGER CTF_LBRAC CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_INTEGER;
-			$$->u.field_class_specifier.node = make_node(scanner, NODE_INTEGER);
-		}
-	|	CTF_INTEGER CTF_LBRAC ctf_assignment_expression_list CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_INTEGER;
-			$$->u.field_class_specifier.node = make_node(scanner, NODE_INTEGER);
-			if (set_parent_node($3, $$->u.field_class_specifier.node))
-				reparent_error(scanner, "integer reparent error");
-		}
-	;
-
-field_class_specifier:
-		CTF_VOID
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_VOID;
-		}
-	|	CTF_CHAR
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_CHAR;
-		}
-	|	CTF_SHORT
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_SHORT;
-		}
-	|	CTF_INT
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_INT;
-		}
-	|	CTF_LONG
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_LONG;
-		}
-	|	CTF_FLOAT
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_FLOAT;
-		}
-	|	CTF_DOUBLE
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_DOUBLE;
-		}
-	|	CTF_SIGNED
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_SIGNED;
-		}
-	|	CTF_UNSIGNED
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_UNSIGNED;
-		}
-	|	CTF_BOOL
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_BOOL;
-		}
-	|	CTF_COMPLEX
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_COMPLEX;
-		}
-	|	CTF_IMAGINARY
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_IMAGINARY;
-		}
-	|	ID_TYPE
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_ID_TYPE;
-			$$->u.field_class_specifier.id_type = yylval.s;
-		}
-	|	CTF_FLOATING_POINT CTF_LBRAC CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_FLOATING_POINT;
-			$$->u.field_class_specifier.node = make_node(scanner, NODE_FLOATING_POINT);
-		}
-	|	CTF_FLOATING_POINT CTF_LBRAC ctf_assignment_expression_list CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_FLOATING_POINT;
-			$$->u.field_class_specifier.node = make_node(scanner, NODE_FLOATING_POINT);
-			if (set_parent_node($3, $$->u.field_class_specifier.node))
-				reparent_error(scanner, "floating point reparent error");
-		}
-	|	CTF_INTEGER CTF_LBRAC CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_INTEGER;
-			$$->u.field_class_specifier.node = make_node(scanner, NODE_INTEGER);
-		}
-	|	CTF_INTEGER CTF_LBRAC ctf_assignment_expression_list CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_INTEGER;
-			$$->u.field_class_specifier.node = make_node(scanner, NODE_INTEGER);
-			if (set_parent_node($3, $$->u.field_class_specifier.node))
-				reparent_error(scanner, "integer reparent error");
-		}
-	|	CTF_STRING
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_STRING;
-			$$->u.field_class_specifier.node = make_node(scanner, NODE_STRING);
-		}
-	|	CTF_STRING CTF_LBRAC CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_STRING;
-			$$->u.field_class_specifier.node = make_node(scanner, NODE_STRING);
-		}
-	|	CTF_STRING CTF_LBRAC ctf_assignment_expression_list CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_STRING;
-			$$->u.field_class_specifier.node = make_node(scanner, NODE_STRING);
-			if (set_parent_node($3, $$->u.field_class_specifier.node))
-				reparent_error(scanner, "string reparent error");
-		}
-	|	CTF_ENUM enum_field_class_specifier
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_ENUM;
-			$$->u.field_class_specifier.node = $2;
-		}
-	|	CTF_VARIANT variant_field_class_specifier
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_VARIANT;
-			$$->u.field_class_specifier.node = $2;
-		}
-	|	CTF_STRUCT struct_class_specifier
-		{
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER);
-			$$->u.field_class_specifier.type = TYPESPEC_STRUCT;
-			$$->u.field_class_specifier.node = $2;
-		}
-	;
-
-struct_class_specifier:
-		struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end
-		{
-			$$ = make_node(scanner, NODE_STRUCT);
-			$$->u._struct.has_body = 1;
-			if ($2 && 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;
-			if ($3 && set_parent_node($3, $$))
-				reparent_error(scanner, "struct reparent error");
-		}
-	|	ID_TYPE struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end
-		{
-			$$ = make_node(scanner, NODE_STRUCT);
-			$$->u._struct.has_body = 1;
-			$$->u._struct.name = $1;
-			if ($3 && 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;
-		}
-	|	ID_TYPE
-		{
-			$$ = make_node(scanner, NODE_STRUCT);
-			$$->u._struct.has_body = 0;
-			$$->u._struct.name = $1;
-		}
-	|	struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end CTF_TOK_ALIGN CTF_LPAREN unary_expression CTF_RPAREN
-		{
-			$$ = make_node(scanner, NODE_STRUCT);
-			$$->u._struct.has_body = 1;
-			bt_list_add_tail(&($6)->siblings, &$$->u._struct.min_align);
-			if ($2 && set_parent_node($2, $$))
-				reparent_error(scanner, "struct reparent error");
-		}
-	|	IDENTIFIER struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end CTF_TOK_ALIGN CTF_LPAREN unary_expression CTF_RPAREN
-		{
-			$$ = make_node(scanner, NODE_STRUCT);
-			$$->u._struct.has_body = 1;
-			$$->u._struct.name = $1;
-			bt_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 CTF_TOK_ALIGN CTF_LPAREN unary_expression CTF_RPAREN
-		{
-			$$ = make_node(scanner, NODE_STRUCT);
-			$$->u._struct.has_body = 1;
-			$$->u._struct.name = $1;
-			bt_list_add_tail(&($7)->siblings, &$$->u._struct.min_align);
-			if ($3 && set_parent_node($3, $$))
-				reparent_error(scanner, "struct reparent error");
-		}
-	;
-
-struct_declaration_begin:
-		CTF_LBRAC
-		{	push_scope(scanner);	}
-	;
-
-struct_declaration_end:
-		CTF_RBRAC
-		{	pop_scope(scanner);	}
-	;
-
-variant_field_class_specifier:
-		variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
-		{
-			$$ = make_node(scanner, NODE_VARIANT);
-			$$->u.variant.has_body = 1;
-			if ($2 && set_parent_node($2, $$))
-				reparent_error(scanner, "variant reparent error");
-		}
-	|	CTF_LT IDENTIFIER CTF_GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
-		{
-			$$ = make_node(scanner, NODE_VARIANT);
-			$$->u.variant.has_body = 1;
-			$$->u.variant.choice = $2;
-			if ($5 && set_parent_node($5, $$))
-				reparent_error(scanner, "variant reparent error");
-		}
-	|	CTF_LT ID_TYPE CTF_GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
-		{
-			$$ = make_node(scanner, NODE_VARIANT);
-			$$->u.variant.has_body = 1;
-			$$->u.variant.choice = $2;
-			if ($5 && set_parent_node($5, $$))
-				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;
-			$$->u.variant.name = $1;
-			if ($3 && set_parent_node($3, $$))
-				reparent_error(scanner, "variant reparent error");
-		}
-	|	IDENTIFIER CTF_LT IDENTIFIER CTF_GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
-		{
-			$$ = make_node(scanner, NODE_VARIANT);
-			$$->u.variant.has_body = 1;
-			$$->u.variant.name = $1;
-			$$->u.variant.choice = $3;
-			if ($6 && set_parent_node($6, $$))
-				reparent_error(scanner, "variant reparent error");
-		}
-	|	IDENTIFIER CTF_LT IDENTIFIER CTF_GT
-		{
-			$$ = make_node(scanner, NODE_VARIANT);
-			$$->u.variant.has_body = 0;
-			$$->u.variant.name = $1;
-			$$->u.variant.choice = $3;
-		}
-	|	IDENTIFIER CTF_LT ID_TYPE CTF_GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
-		{
-			$$ = make_node(scanner, NODE_VARIANT);
-			$$->u.variant.has_body = 1;
-			$$->u.variant.name = $1;
-			$$->u.variant.choice = $3;
-			if ($6 && set_parent_node($6, $$))
-				reparent_error(scanner, "variant reparent error");
-		}
-	|	IDENTIFIER CTF_LT ID_TYPE CTF_GT
-		{
-			$$ = make_node(scanner, NODE_VARIANT);
-			$$->u.variant.has_body = 0;
-			$$->u.variant.name = $1;
-			$$->u.variant.choice = $3;
-		}
-	|	ID_TYPE variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
-		{
-			$$ = make_node(scanner, NODE_VARIANT);
-			$$->u.variant.has_body = 1;
-			$$->u.variant.name = $1;
-			if ($3 && set_parent_node($3, $$))
-				reparent_error(scanner, "variant reparent error");
-		}
-	|	ID_TYPE CTF_LT IDENTIFIER CTF_GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
-		{
-			$$ = make_node(scanner, NODE_VARIANT);
-			$$->u.variant.has_body = 1;
-			$$->u.variant.name = $1;
-			$$->u.variant.choice = $3;
-			if ($6 && set_parent_node($6, $$))
-				reparent_error(scanner, "variant reparent error");
-		}
-	|	ID_TYPE CTF_LT IDENTIFIER CTF_GT
-		{
-			$$ = make_node(scanner, NODE_VARIANT);
-			$$->u.variant.has_body = 0;
-			$$->u.variant.name = $1;
-			$$->u.variant.choice = $3;
-		}
-	|	ID_TYPE CTF_LT ID_TYPE CTF_GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
-		{
-			$$ = make_node(scanner, NODE_VARIANT);
-			$$->u.variant.has_body = 1;
-			$$->u.variant.name = $1;
-			$$->u.variant.choice = $3;
-			if ($6 && set_parent_node($6, $$))
-				reparent_error(scanner, "variant reparent error");
-		}
-	|	ID_TYPE CTF_LT ID_TYPE CTF_GT
-		{
-			$$ = make_node(scanner, NODE_VARIANT);
-			$$->u.variant.has_body = 0;
-			$$->u.variant.name = $1;
-			$$->u.variant.choice = $3;
-		}
-	;
-
-variant_declaration_begin:
-		CTF_LBRAC
-		{	push_scope(scanner);	}
-	;
-
-variant_declaration_end:
-		CTF_RBRAC
-		{	pop_scope(scanner);	}
-	;
-
-enum_field_class_specifier:
-		CTF_LBRAC enumerator_list CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_ENUM);
-			$$->u._enum.has_body = 1;
-			_bt_list_splice_tail(&($2)->tmp_head, &($$)->u._enum.enumerator_list);
-		}
-	|	CTF_COLON integer_declaration_specifiers CTF_LBRAC enumerator_list CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_ENUM);
-			$$->u._enum.has_body = 1;
-			($$)->u._enum.container_field_class = $2;
-			_bt_list_splice_tail(&($4)->tmp_head, &($$)->u._enum.enumerator_list);
-		}
-	|	IDENTIFIER CTF_LBRAC enumerator_list CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_ENUM);
-			$$->u._enum.has_body = 1;
-			$$->u._enum.enum_id = $1;
-			_bt_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
-		}
-	|	IDENTIFIER CTF_COLON integer_declaration_specifiers CTF_LBRAC enumerator_list CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_ENUM);
-			$$->u._enum.has_body = 1;
-			$$->u._enum.enum_id = $1;
-			($$)->u._enum.container_field_class = $3;
-			_bt_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
-		}
-	|	ID_TYPE CTF_LBRAC enumerator_list CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_ENUM);
-			$$->u._enum.has_body = 1;
-			$$->u._enum.enum_id = $1;
-			_bt_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
-		}
-	|	ID_TYPE CTF_COLON integer_declaration_specifiers CTF_LBRAC enumerator_list CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_ENUM);
-			$$->u._enum.has_body = 1;
-			$$->u._enum.enum_id = $1;
-			($$)->u._enum.container_field_class = $3;
-			_bt_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
-		}
-	|	CTF_LBRAC enumerator_list CTF_COMMA CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_ENUM);
-			$$->u._enum.has_body = 1;
-			_bt_list_splice_tail(&($2)->tmp_head, &($$)->u._enum.enumerator_list);
-		}
-	|	CTF_COLON integer_declaration_specifiers CTF_LBRAC enumerator_list CTF_COMMA CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_ENUM);
-			$$->u._enum.has_body = 1;
-			($$)->u._enum.container_field_class = $2;
-			_bt_list_splice_tail(&($4)->tmp_head, &($$)->u._enum.enumerator_list);
-		}
-	|	IDENTIFIER CTF_LBRAC enumerator_list CTF_COMMA CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_ENUM);
-			$$->u._enum.has_body = 1;
-			$$->u._enum.enum_id = $1;
-			_bt_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
-		}
-	|	IDENTIFIER CTF_COLON integer_declaration_specifiers CTF_LBRAC enumerator_list CTF_COMMA CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_ENUM);
-			$$->u._enum.has_body = 1;
-			$$->u._enum.enum_id = $1;
-			($$)->u._enum.container_field_class = $3;
-			_bt_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
-		}
-	|	IDENTIFIER
-		{
-			$$ = make_node(scanner, NODE_ENUM);
-			$$->u._enum.has_body = 0;
-			$$->u._enum.enum_id = $1;
-		}
-	|	ID_TYPE CTF_LBRAC enumerator_list CTF_COMMA CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_ENUM);
-			$$->u._enum.has_body = 1;
-			$$->u._enum.enum_id = $1;
-			_bt_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
-		}
-	|	ID_TYPE CTF_COLON integer_declaration_specifiers CTF_LBRAC enumerator_list CTF_COMMA CTF_RBRAC
-		{
-			$$ = make_node(scanner, NODE_ENUM);
-			$$->u._enum.has_body = 1;
-			$$->u._enum.enum_id = $1;
-			($$)->u._enum.container_field_class = $3;
-			_bt_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
-		}
-	|	ID_TYPE
-		{
-			$$ = make_node(scanner, NODE_ENUM);
-			$$->u._enum.has_body = 0;
-			$$->u._enum.enum_id = $1;
-		}
-	;
-
-struct_or_variant_declaration_list:
-		/* empty */
-		{	$$ = NULL;	}
-	|	struct_or_variant_declaration_list struct_or_variant_declaration
-		{
-			if ($1) {
-				$$ = $1;
-				bt_list_add_tail(&($2)->siblings, &($$)->tmp_head);
-			} else {
-				$$ = $2;
-				bt_list_add_tail(&($$)->siblings, &($$)->tmp_head);
-			}
-		}
-	;
-
-struct_or_variant_declaration:
-		declaration_specifiers struct_or_variant_declarator_list CTF_SEMICOLON
-		{
-			struct ctf_node *list;
-
-			list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			_bt_list_splice_tail(&($1)->u.field_class_specifier_list.head, &list->u.field_class_specifier_list.head);
-			$$ = make_node(scanner, NODE_STRUCT_OR_VARIANT_DECLARATION);
-			($$)->u.struct_or_variant_declaration.field_class_specifier_list = list;
-			_bt_list_splice_tail(&($2)->tmp_head, &($$)->u.struct_or_variant_declaration.field_class_declarators);
-		}
-	|	declaration_specifiers CTF_TYPEDEF declaration_specifiers field_class_declarator_list CTF_SEMICOLON
-		{
-			struct ctf_node *list;
-
-			$$ = make_node(scanner, NODE_TYPEDEF);
-			list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			$$->u.field_class_def.field_class_specifier_list = list;
-			_bt_list_splice_tail(&($1)->u.field_class_specifier_list.head, &list->u.field_class_specifier_list.head);
-			_bt_list_splice_tail(&($3)->u.field_class_specifier_list.head, &list->u.field_class_specifier_list.head);
-			_bt_list_splice_tail(&($4)->tmp_head, &($$)->u.field_class_def.field_class_declarators);
-		}
-	|	CTF_TYPEDEF declaration_specifiers field_class_declarator_list CTF_SEMICOLON
-		{
-			struct ctf_node *list;
-
-			$$ = make_node(scanner, NODE_TYPEDEF);
-			list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			$$->u.field_class_def.field_class_specifier_list = list;
-			_bt_list_splice_tail(&($2)->u.field_class_specifier_list.head, &list->u.field_class_specifier_list.head);
-			_bt_list_splice_tail(&($3)->tmp_head, &($$)->u.field_class_def.field_class_declarators);
-		}
-	|	declaration_specifiers CTF_TYPEDEF field_class_declarator_list CTF_SEMICOLON
-		{
-			struct ctf_node *list;
-
-			list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			_bt_list_splice_tail(&($1)->u.field_class_specifier_list.head, &list->u.field_class_specifier_list.head);
-			$$ = make_node(scanner, NODE_TYPEDEF);
-			($$)->u.struct_or_variant_declaration.field_class_specifier_list = list;
-			_bt_list_splice_tail(&($3)->tmp_head, &($$)->u.field_class_def.field_class_declarators);
-		}
-	|	CTF_TYPEALIAS declaration_specifiers abstract_declarator_list CTF_TYPEASSIGN alias_declaration_specifiers alias_abstract_declarator_list CTF_SEMICOLON
-		{
-			struct ctf_node *list;
-
-			$$ = make_node(scanner, NODE_TYPEALIAS);
-			$$->u.field_class_alias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
-			$$->u.field_class_alias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
-
-			list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			$$->u.field_class_alias.target->u.field_class_alias_target.field_class_specifier_list = list;
-			_bt_list_splice_tail(&($2)->u.field_class_specifier_list.head, &list->u.field_class_specifier_list.head);
-			_bt_list_splice_tail(&($3)->tmp_head, &($$)->u.field_class_alias.target->u.field_class_alias_target.field_class_declarators);
-
-			list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			$$->u.field_class_alias.alias->u.field_class_alias_name.field_class_specifier_list = list;
-			_bt_list_splice_tail(&($5)->u.field_class_specifier_list.head, &list->u.field_class_specifier_list.head);
-			_bt_list_splice_tail(&($6)->tmp_head, &($$)->u.field_class_alias.alias->u.field_class_alias_name.field_class_declarators);
-		}
-	;
-
-alias_declaration_specifiers:
-		CTF_CONST
-		{
-			struct ctf_node *node;
-
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			node = make_node(scanner, NODE_TYPE_SPECIFIER);
-			node->u.field_class_specifier.type = TYPESPEC_CONST;
-			bt_list_add_tail(&node->siblings, &($$)->u.field_class_specifier_list.head);
-		}
-	|	field_class_specifier
-		{
-			struct ctf_node *node;
-
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			node = $1;
-			bt_list_add_tail(&node->siblings, &($$)->u.field_class_specifier_list.head);
-		}
-	|	IDENTIFIER
-		{
-			struct ctf_node *node;
-
-			add_type(scanner, $1);
-			$$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			node = make_node(scanner, NODE_TYPE_SPECIFIER);
-			node->u.field_class_specifier.type = TYPESPEC_ID_TYPE;
-			node->u.field_class_specifier.id_type = yylval.s;
-			bt_list_add_tail(&node->siblings, &($$)->u.field_class_specifier_list.head);
-		}
-	|	alias_declaration_specifiers CTF_CONST
-		{
-			struct ctf_node *node;
-
-			$$ = $1;
-			node = make_node(scanner, NODE_TYPE_SPECIFIER);
-			node->u.field_class_specifier.type = TYPESPEC_CONST;
-			bt_list_add_tail(&node->siblings, &($$)->u.field_class_specifier_list.head);
-		}
-	|	alias_declaration_specifiers field_class_specifier
-		{
-			$$ = $1;
-			bt_list_add_tail(&($2)->siblings, &($$)->u.field_class_specifier_list.head);
-		}
-	|	alias_declaration_specifiers IDENTIFIER
-		{
-			struct ctf_node *node;
-
-			add_type(scanner, $2);
-			$$ = $1;
-			node = make_node(scanner, NODE_TYPE_SPECIFIER);
-			node->u.field_class_specifier.type = TYPESPEC_ID_TYPE;
-			node->u.field_class_specifier.id_type = yylval.s;
-			bt_list_add_tail(&node->siblings, &($$)->u.field_class_specifier_list.head);
-		}
-	;
-
-struct_or_variant_declarator_list:
-		struct_or_variant_declarator
-		{	$$ = $1;	}
-	|	struct_or_variant_declarator_list CTF_COMMA struct_or_variant_declarator
-		{
-			$$ = $1;
-			bt_list_add_tail(&($3)->siblings, &($$)->tmp_head);
-		}
-	;
-
-struct_or_variant_declarator:
-		declarator
-		{	$$ = $1;	}
-	|	CTF_COLON unary_expression
-		{	$$ = $2;	}
-	|	declarator CTF_COLON unary_expression
-		{
-			$$ = $1;
-			if (set_parent_node($3, $1))
-				reparent_error(scanner, "struct_or_variant_declarator");
-		}
-	;
-
-enumerator_list:
-		enumerator
-		{	$$ = $1;	}
-	|	enumerator_list CTF_COMMA enumerator
-		{
-			$$ = $1;
-			bt_list_add_tail(&($3)->siblings, &($$)->tmp_head);
-		}
-	;
-
-enumerator:
-		IDENTIFIER
-		{
-			$$ = make_node(scanner, NODE_ENUMERATOR);
-			$$->u.enumerator.id = $1;
-		}
-	|	ID_TYPE
-		{
-			$$ = make_node(scanner, NODE_ENUMERATOR);
-			$$->u.enumerator.id = $1;
-		}
-	|	keywords
-		{
-			$$ = make_node(scanner, NODE_ENUMERATOR);
-			$$->u.enumerator.id = $1;
-		}
-	|	CTF_STRING_LITERAL
-		{
-			$$ = make_node(scanner, NODE_ENUMERATOR);
-			$$->u.enumerator.id = $1;
-		}
-	|	IDENTIFIER CTF_EQUAL unary_expression_or_range
-		{
-			$$ = make_node(scanner, NODE_ENUMERATOR);
-			$$->u.enumerator.id = $1;
-			bt_list_splice(&($3)->tmp_head, &($$)->u.enumerator.values);
-		}
-	|	ID_TYPE CTF_EQUAL unary_expression_or_range
-		{
-			$$ = make_node(scanner, NODE_ENUMERATOR);
-			$$->u.enumerator.id = $1;
-			bt_list_splice(&($3)->tmp_head, &($$)->u.enumerator.values);
-		}
-	|	keywords CTF_EQUAL unary_expression_or_range
-		{
-			$$ = make_node(scanner, NODE_ENUMERATOR);
-			$$->u.enumerator.id = $1;
-			bt_list_splice(&($3)->tmp_head, &($$)->u.enumerator.values);
-		}
-	|	CTF_STRING_LITERAL CTF_EQUAL unary_expression_or_range
-		{
-			$$ = make_node(scanner, NODE_ENUMERATOR);
-			$$->u.enumerator.id = $1;
-			bt_list_splice(&($3)->tmp_head, &($$)->u.enumerator.values);
-		}
-	;
-
-abstract_declarator_list:
-		abstract_declarator
-		{	$$ = $1;	}
-	|	abstract_declarator_list CTF_COMMA abstract_declarator
-		{
-			$$ = $1;
-			bt_list_add_tail(&($3)->siblings, &($$)->tmp_head);
-		}
-	;
-
-abstract_declarator:
-		direct_abstract_declarator
-		{	$$ = $1;	}
-	|	pointer direct_abstract_declarator
-		{
-			$$ = $2;
-			bt_list_splice(&($1)->tmp_head, &($$)->u.field_class_declarator.pointers);
-		}
-	;
-
-direct_abstract_declarator:
-		/* empty */
-		{
-			$$ = make_node(scanner, NODE_TYPE_DECLARATOR);
-                        $$->u.field_class_declarator.type = TYPEDEC_ID;
-			/* id is NULL */
-		}
-	|	IDENTIFIER
-		{
-			$$ = make_node(scanner, NODE_TYPE_DECLARATOR);
-			$$->u.field_class_declarator.type = TYPEDEC_ID;
-			$$->u.field_class_declarator.u.id = $1;
-		}
-	|	CTF_LPAREN abstract_declarator CTF_RPAREN
-		{
-			$$ = make_node(scanner, NODE_TYPE_DECLARATOR);
-			$$->u.field_class_declarator.type = TYPEDEC_NESTED;
-			$$->u.field_class_declarator.u.nested.field_class_declarator = $2;
-		}
-	|	direct_abstract_declarator CTF_LSBRAC unary_expression CTF_RSBRAC
-		{
-			$$ = make_node(scanner, NODE_TYPE_DECLARATOR);
-			$$->u.field_class_declarator.type = TYPEDEC_NESTED;
-			$$->u.field_class_declarator.u.nested.field_class_declarator = $1;
-			BT_INIT_LIST_HEAD(&($$)->u.field_class_declarator.u.nested.length);
-			_bt_list_splice_tail(&($3)->tmp_head, &($$)->u.field_class_declarator.u.nested.length);
-		}
-	|	direct_abstract_declarator CTF_LSBRAC CTF_RSBRAC
-		{
-			$$ = make_node(scanner, NODE_TYPE_DECLARATOR);
-			$$->u.field_class_declarator.type = TYPEDEC_NESTED;
-			$$->u.field_class_declarator.u.nested.field_class_declarator = $1;
-			$$->u.field_class_declarator.u.nested.abstract_array = 1;
-		}
-	;
-
-alias_abstract_declarator_list:
-		alias_abstract_declarator
-		{	$$ = $1;	}
-	|	alias_abstract_declarator_list CTF_COMMA alias_abstract_declarator
-		{
-			$$ = $1;
-			bt_list_add_tail(&($3)->siblings, &($$)->tmp_head);
-		}
-	;
-
-alias_abstract_declarator:
-		direct_alias_abstract_declarator
-		{	$$ = $1;	}
-	|	pointer direct_alias_abstract_declarator
-		{
-			$$ = $2;
-			bt_list_splice(&($1)->tmp_head, &($$)->u.field_class_declarator.pointers);
-		}
-	;
-
-direct_alias_abstract_declarator:
-		/* empty */
-		{
-			$$ = make_node(scanner, NODE_TYPE_DECLARATOR);
-                        $$->u.field_class_declarator.type = TYPEDEC_ID;
-			/* id is NULL */
-		}
-	|	CTF_LPAREN alias_abstract_declarator CTF_RPAREN
-		{
-			$$ = make_node(scanner, NODE_TYPE_DECLARATOR);
-			$$->u.field_class_declarator.type = TYPEDEC_NESTED;
-			$$->u.field_class_declarator.u.nested.field_class_declarator = $2;
-		}
-	|	direct_alias_abstract_declarator CTF_LSBRAC unary_expression CTF_RSBRAC
-		{
-			$$ = make_node(scanner, NODE_TYPE_DECLARATOR);
-			$$->u.field_class_declarator.type = TYPEDEC_NESTED;
-			$$->u.field_class_declarator.u.nested.field_class_declarator = $1;
-			BT_INIT_LIST_HEAD(&($$)->u.field_class_declarator.u.nested.length);
-			_bt_list_splice_tail(&($3)->tmp_head, &($$)->u.field_class_declarator.u.nested.length);
-		}
-	|	direct_alias_abstract_declarator CTF_LSBRAC CTF_RSBRAC
-		{
-			$$ = make_node(scanner, NODE_TYPE_DECLARATOR);
-			$$->u.field_class_declarator.type = TYPEDEC_NESTED;
-			$$->u.field_class_declarator.u.nested.field_class_declarator = $1;
-			$$->u.field_class_declarator.u.nested.abstract_array = 1;
-		}
-	;
-
-declarator:
-		direct_declarator
-		{	$$ = $1;	}
-	|	pointer direct_declarator
-		{
-			$$ = $2;
-			bt_list_splice(&($1)->tmp_head, &($$)->u.field_class_declarator.pointers);
-		}
-	;
-
-direct_declarator:
-		IDENTIFIER
-		{
-			$$ = make_node(scanner, NODE_TYPE_DECLARATOR);
-			$$->u.field_class_declarator.type = TYPEDEC_ID;
-			$$->u.field_class_declarator.u.id = $1;
-		}
-	|	CTF_LPAREN declarator CTF_RPAREN
-		{
-			$$ = make_node(scanner, NODE_TYPE_DECLARATOR);
-			$$->u.field_class_declarator.type = TYPEDEC_NESTED;
-			$$->u.field_class_declarator.u.nested.field_class_declarator = $2;
-		}
-	|	direct_declarator CTF_LSBRAC unary_expression CTF_RSBRAC
-		{
-			$$ = make_node(scanner, NODE_TYPE_DECLARATOR);
-			$$->u.field_class_declarator.type = TYPEDEC_NESTED;
-			$$->u.field_class_declarator.u.nested.field_class_declarator = $1;
-			BT_INIT_LIST_HEAD(&($$)->u.field_class_declarator.u.nested.length);
-			_bt_list_splice_tail(&($3)->tmp_head, &($$)->u.field_class_declarator.u.nested.length);
-		}
-	;
-
-field_class_declarator:
-		direct_field_class_declarator
-		{	$$ = $1;	}
-	|	pointer direct_field_class_declarator
-		{
-			$$ = $2;
-			bt_list_splice(&($1)->tmp_head, &($$)->u.field_class_declarator.pointers);
-		}
-	;
-
-direct_field_class_declarator:
-		IDENTIFIER
-		{
-			add_type(scanner, $1);
-			$$ = make_node(scanner, NODE_TYPE_DECLARATOR);
-			$$->u.field_class_declarator.type = TYPEDEC_ID;
-			$$->u.field_class_declarator.u.id = $1;
-		}
-	|	CTF_LPAREN field_class_declarator CTF_RPAREN
-		{
-			$$ = make_node(scanner, NODE_TYPE_DECLARATOR);
-			$$->u.field_class_declarator.type = TYPEDEC_NESTED;
-			$$->u.field_class_declarator.u.nested.field_class_declarator = $2;
-		}
-	|	direct_field_class_declarator CTF_LSBRAC unary_expression CTF_RSBRAC
-		{
-			$$ = make_node(scanner, NODE_TYPE_DECLARATOR);
-			$$->u.field_class_declarator.type = TYPEDEC_NESTED;
-			$$->u.field_class_declarator.u.nested.field_class_declarator = $1;
-			BT_INIT_LIST_HEAD(&($$)->u.field_class_declarator.u.nested.length);
-			_bt_list_splice_tail(&($3)->tmp_head, &($$)->u.field_class_declarator.u.nested.length);
-		}
-	;
-
-pointer:
-		CTF_STAR
-		{
-			$$ = make_node(scanner, NODE_POINTER);
-		}
-	|	CTF_STAR pointer
-		{
-			$$ = make_node(scanner, NODE_POINTER);
-			bt_list_splice(&($2)->tmp_head, &($$)->tmp_head);
-		}
-	|	CTF_STAR type_qualifier_list pointer
-		{
-			$$ = make_node(scanner, NODE_POINTER);
-			$$->u.pointer.const_qualifier = 1;
-			bt_list_splice(&($3)->tmp_head, &($$)->tmp_head);
-		}
-	;
-
-type_qualifier_list:
-		/* pointer assumes only const type qualifier */
-		CTF_CONST
-	|	type_qualifier_list CTF_CONST
-	;
-
-/* 2.3: CTF-specific declarations */
-
-ctf_assignment_expression_list:
-		ctf_assignment_expression CTF_SEMICOLON
-		{	$$ = $1;	}
-	|	ctf_assignment_expression_list ctf_assignment_expression CTF_SEMICOLON
-		{
-			$$ = $1;
-			bt_list_add_tail(&($2)->siblings, &($$)->tmp_head);
-		}
-	;
-
-ctf_assignment_expression:
-		unary_expression CTF_EQUAL unary_expression
-		{
-			/*
-			 * Because we have left and right, cannot use
-			 * set_parent_node.
-			 */
-			$$ = make_node(scanner, NODE_CTF_EXPRESSION);
-			_bt_list_splice_tail(&($1)->tmp_head, &($$)->u.ctf_expression.left);
-			if ($1->u.unary_expression.type != UNARY_STRING)
-				reparent_error(scanner, "ctf_assignment_expression left expects string");
-			_bt_list_splice_tail(&($3)->tmp_head, &($$)->u.ctf_expression.right);
-		}
-	|	unary_expression CTF_TYPEASSIGN declaration_specifiers	/* Only allow struct */
-		{
-			/*
-			 * Because we have left and right, cannot use
-			 * set_parent_node.
-			 */
-			$$ = make_node(scanner, NODE_CTF_EXPRESSION);
-			_bt_list_splice_tail(&($1)->tmp_head, &($$)->u.ctf_expression.left);
-			if ($1->u.unary_expression.type != UNARY_STRING)
-				reparent_error(scanner, "ctf_assignment_expression left expects string");
-			bt_list_add_tail(&($3)->siblings, &($$)->u.ctf_expression.right);
-		}
-	|	declaration_specifiers CTF_TYPEDEF declaration_specifiers field_class_declarator_list
-		{
-			struct ctf_node *list;
-
-			list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			_bt_list_splice_tail(&($1)->u.field_class_specifier_list.head, &list->u.field_class_specifier_list.head);
-			_bt_list_splice_tail(&($3)->u.field_class_specifier_list.head, &list->u.field_class_specifier_list.head);
-			$$ = make_node(scanner, NODE_TYPEDEF);
-			($$)->u.struct_or_variant_declaration.field_class_specifier_list = list;
-			_bt_list_splice_tail(&($4)->tmp_head, &($$)->u.field_class_def.field_class_declarators);
-		}
-	|	CTF_TYPEDEF declaration_specifiers field_class_declarator_list
-		{
-			struct ctf_node *list;
-
-			$$ = make_node(scanner, NODE_TYPEDEF);
-			list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			$$->u.field_class_def.field_class_specifier_list = list;
-			_bt_list_splice_tail(&($2)->u.field_class_specifier_list.head, &list->u.field_class_specifier_list.head);
-			_bt_list_splice_tail(&($3)->tmp_head, &($$)->u.field_class_def.field_class_declarators);
-		}
-	|	declaration_specifiers CTF_TYPEDEF field_class_declarator_list
-		{
-			struct ctf_node *list;
-
-			list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			_bt_list_splice_tail(&($1)->u.field_class_specifier_list.head, &list->u.field_class_specifier_list.head);
-			$$ = make_node(scanner, NODE_TYPEDEF);
-			($$)->u.struct_or_variant_declaration.field_class_specifier_list = list;
-			_bt_list_splice_tail(&($3)->tmp_head, &($$)->u.field_class_def.field_class_declarators);
-		}
-	|	CTF_TYPEALIAS declaration_specifiers abstract_declarator_list CTF_TYPEASSIGN alias_declaration_specifiers alias_abstract_declarator_list
-		{
-			struct ctf_node *list;
-
-			$$ = make_node(scanner, NODE_TYPEALIAS);
-			$$->u.field_class_alias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
-			$$->u.field_class_alias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
-
-			list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			$$->u.field_class_alias.target->u.field_class_alias_target.field_class_specifier_list = list;
-			_bt_list_splice_tail(&($2)->u.field_class_specifier_list.head, &list->u.field_class_specifier_list.head);
-			_bt_list_splice_tail(&($3)->tmp_head, &($$)->u.field_class_alias.target->u.field_class_alias_target.field_class_declarators);
-
-			list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
-			$$->u.field_class_alias.alias->u.field_class_alias_name.field_class_specifier_list = list;
-			_bt_list_splice_tail(&($5)->u.field_class_specifier_list.head, &list->u.field_class_specifier_list.head);
-			_bt_list_splice_tail(&($6)->tmp_head, &($$)->u.field_class_alias.alias->u.field_class_alias_name.field_class_declarators);
-		}
-	;