#! /bin/sh
# $NetBSD: mknodes.sh,v 1.4 2019/01/19 13:08:50 kre Exp $
# Copyright (c) 2003 The NetBSD Foundation, Inc.
# All rights reserved.
#
# This code is derived from software contributed to The NetBSD Foundation
# by David Laight.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
nodetypes=$1
nodes_pat=$2
objdir="$3"
exec <$nodetypes
exec >$objdir/nodes.h.tmp
echo "/*"
echo " * This file was generated by mknodes.sh"
echo " */"
echo
tagno=0
while IFS=; read -r line; do
line="${line%%#*}"
IFS=' '
set -- $line
IFS=
[ -z "$2" ] && continue
case "$line" in
[" "]* )
IFS=' '
[ $field = 0 ] && struct_list="$struct_list $struct"
eval field_${struct}_$field=\"\$*\"
eval numfld_$struct=\$field
field=$(($field + 1))
;;
* )
define=$1
struct=$2
echo "#define $define $tagno"
tagno=$(($tagno + 1))
eval define_$struct=\"\$define_$struct \$define\"
struct_define="$struct_define $struct"
field=0
;;
esac
done
echo
IFS=' '
for struct in $struct_list; do
echo
echo
echo "struct $struct {"
field=0
while
eval line=\"\$field_${struct}_$field\"
field=$(($field + 1))
[ -n "$line" ]
do
IFS=' '
set -- $line
name=$1
case "$name" in
type) if [ -n "$typetype" ] && [ "$typetype" != "$2" ]
then
echo >&2 "Conflicting type fields: node" \
"$struct has $2, others $typetype"
exit 1
fi
if [ $field -ne 1 ]
then
echo >&2 "Node $struct has type as field" \
"$field (should only be first)"
exit 1
fi
typetype=$2
;;
*)
if [ $field -eq 1 ]
then
echo >&2 "Node $struct does not have" \
"type as first field"
exit 1
fi
;;
esac
case $2 in
nodeptr ) type="union node *";;
nodelist ) type="struct nodelist *";;
string ) type="char *";;
int*_t | uint*_t | int ) type="$2 ";;
* ) name=; shift 2; type="$*";;
esac
echo " $type$name;"
done
echo "};"
done
echo
echo
echo "union node {"
echo " $typetype type;"
for struct in $struct_list; do
echo " struct $struct $struct;"
done
echo "};"
echo
echo
echo "struct nodelist {"
echo " struct nodelist *next;"
echo " union node *n;"
echo "};"
echo
echo
echo 'struct funcdef;'
echo 'struct funcdef *copyfunc(union node *);'
echo 'union node *getfuncnode(struct funcdef *);'
echo 'void reffunc(struct funcdef *);'
echo 'void unreffunc(struct funcdef *);'
echo 'void freefunc(struct funcdef *);'
mv $objdir/nodes.h.tmp $objdir/nodes.h || exit 1
exec <$nodes_pat
exec >$objdir/nodes.c.tmp
echo "/*"
echo " * This file was generated by mknodes.sh"
echo " */"
echo
while IFS=; read -r line; do
IFS=' '
set -- $line
IFS=
case "$1" in
'%SIZES' )
echo "static const short nodesize[$tagno] = {"
IFS=' '
for struct in $struct_define; do
echo " SHELL_ALIGN(sizeof (struct $struct)),"
done
echo "};"
;;
'%CALCSIZE' )
echo " if (n == NULL)"
echo " return;"
echo " res->bsize += nodesize[n->type];"
echo " switch (n->type) {"
IFS=' '
for struct in $struct_list; do
eval defines=\"\$define_$struct\"
for define in $defines; do
echo " case $define:"
done
eval field=\$numfld_$struct
while
[ $field != 0 ]
do
eval line=\"\$field_${struct}_$field\"
field=$(($field - 1))
IFS=' '
set -- $line
name=$1
cl=", res)"
case $2 in
nodeptr ) fn=calcsize;;
nodelist ) fn=sizenodelist;;
string ) fn="res->ssize += strlen"
cl=") + 1";;
* ) continue;;
esac
echo " ${fn}(n->$struct.$name${cl};"
done
echo " break;"
done
echo " };"
;;
'%COPY' )
echo " if (n == NULL)"
echo " return NULL;"
echo " new = st->block;"
echo " st->block = (char *) st->block + nodesize[n->type];"
echo " switch (n->type) {"
IFS=' '
for struct in $struct_list; do
eval defines=\"\$define_$struct\"
for define in $defines; do
echo " case $define:"
done
eval field=\$numfld_$struct
while
[ $field != 0 ]
do
eval line=\"\$field_${struct}_$field\"
field=$(($field - 1))
IFS=' '
set -- $line
name=$1
case $2 in
nodeptr ) fn="copynode(";;
nodelist ) fn="copynodelist(";;
string ) fn="nodesavestr(";;
int*_t| uint*_t | int ) fn=;;
* ) continue;;
esac
f="$struct.$name"
echo " new->$f = ${fn}n->$f${fn:+, st)};"
done
echo " break;"
done
echo " };"
echo " new->type = n->type;"
;;
* ) echo "$line";;
esac
done
mv $objdir/nodes.c.tmp $objdir/nodes.c || exit 1
