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cosmetic changes

This commit is contained in:
Yuichi Nishiwaki 2015-06-25 18:51:21 +09:00
parent cc9dd2aa30
commit b71c9dcbff
1 changed files with 51 additions and 52 deletions
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103
extlib/benz/write.c
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@ -46,57 +46,6 @@ writer_control_destroy(struct writer_control *p)
kh_destroy(v, &p->visited);
}
static void
traverse_shared(struct writer_control *p, pic_value obj)
{
pic_state *pic = p->pic;
if (p->op == OP_WRITE_SIMPLE) {
return;
}
switch (pic_type(obj)) {
case PIC_TT_PAIR:
case PIC_TT_VECTOR: {
khash_t(l) *h = &p->labels;
khiter_t it;
int ret;
it = kh_put(l, h, pic_ptr(obj), &ret);
if (ret != 0) {
/* first time */
kh_val(h, it) = -1;
if (pic_pair_p(obj)) {
/* pair */
traverse_shared(p, pic_car(pic, obj));
traverse_shared(p, pic_cdr(pic, obj));
} else {
/* vector */
size_t i;
for (i = 0; i < pic_vec_ptr(obj)->len; ++i) {
traverse_shared(p, pic_vec_ptr(obj)->data[i]);
}
}
if (p->op == OP_WRITE) {
it = kh_get(l, h, pic_ptr(obj));
if (kh_val(h, it) == -1) {
kh_del(l, h, it);
}
}
} else if (kh_val(h, it) == -1) {
/* second time */
kh_val(h, it) = p->cnt++;
}
break;
}
default:
/* pass */
break;
}
}
static void
write_blob(pic_state *pic, pic_blob *blob, xFILE *file)
{
@ -381,6 +330,56 @@ write_core(struct writer_control *p, pic_value obj)
}
}
static void
traverse(struct writer_control *p, pic_value obj)
{
pic_state *pic = p->pic;
if (p->op == OP_WRITE_SIMPLE) {
return;
}
switch (pic_type(obj)) {
case PIC_TT_PAIR:
case PIC_TT_VECTOR: {
khash_t(l) *h = &p->labels;
khiter_t it;
int ret;
it = kh_put(l, h, pic_ptr(obj), &ret);
if (ret != 0) {
/* first time */
kh_val(h, it) = -1;
if (pic_pair_p(obj)) {
/* pair */
traverse(p, pic_car(pic, obj));
traverse(p, pic_cdr(pic, obj));
} else {
/* vector */
size_t i;
for (i = 0; i < pic_vec_ptr(obj)->len; ++i) {
traverse(p, pic_vec_ptr(obj)->data[i]);
}
}
if (p->op == OP_WRITE) {
it = kh_get(l, h, pic_ptr(obj));
if (kh_val(h, it) == -1) {
kh_del(l, h, it);
}
}
} else if (kh_val(h, it) == -1) {
/* second time */
kh_val(h, it) = p->cnt++;
}
break;
}
default:
break;
}
}
static void
write(pic_state *pic, pic_value obj, xFILE *file, int mode, int op)
{
@ -388,7 +387,7 @@ write(pic_state *pic, pic_value obj, xFILE *file, int mode, int op)
writer_control_init(&p, pic, file, mode, op);
traverse_shared(&p, obj);
traverse(&p, obj);
write_core(&p, obj);