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iseq.c: disasm only once for each iseq

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* iseq.c (rb_iseq_disasm): do not dump repeatedly same iseq which
  has been dumped by catch tables.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60735 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2017-11-10 08:26:44 +00:00
parent 9b41c2af6d
commit 54b8b8e4f7
1 changed files with 6 additions and 1 deletions
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7
iseq.c
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@ -1532,6 +1532,7 @@ rb_iseq_disasm(const rb_iseq_t *iseq)
const ID *tbl;
size_t n;
enum {header_minlen = 72};
st_table *done_iseq = 0;
rb_secure(1);
@ -1557,8 +1558,10 @@ rb_iseq_disasm(const rb_iseq_t *iseq)
"| catch type: %-6s st: %04d ed: %04d sp: %04d cont: %04d\n",
catch_type((int)entry->type), (int)entry->start,
(int)entry->end, (int)entry->sp, (int)entry->cont);
if (entry->iseq) {
if (entry->iseq && !(done_iseq && st_is_member(done_iseq, (st_data_t)entry->iseq))) {
rb_str_concat(str, rb_iseq_disasm(rb_iseq_check(entry->iseq)));
if (!done_iseq) done_iseq = st_init_numtable();
st_insert(done_iseq, (st_data_t)entry->iseq, (st_data_t)0);
}
}
}
@ -1627,8 +1630,10 @@ rb_iseq_disasm(const rb_iseq_t *iseq)
for (l = 0; l < RARRAY_LEN(child); l++) {
VALUE isv = rb_ary_entry(child, l);
if (done_iseq && st_is_member(done_iseq, (st_data_t)isv)) continue;
rb_str_concat(str, rb_iseq_disasm(rb_iseq_check((rb_iseq_t *)isv)));
}
if (done_iseq) st_free_table(done_iseq);
return str;
}