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Fix potential NULL pointer access [ci skip]

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65650 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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nobu 2018-11-10 09:29:00 +00:00
parent 9dd8c528d8
commit 67099c4505
1 changed files with 2 additions and 1 deletions
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3
compile.c
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@ -1406,6 +1406,7 @@ static int
get_dyna_var_idx(const rb_iseq_t *iseq, ID id, int *level, int *ls) get_dyna_var_idx(const rb_iseq_t *iseq, ID id, int *level, int *ls)
{ {
int lv = 0, idx = -1; int lv = 0, idx = -1;
const rb_iseq_t *const topmost_iseq = iseq;
while (iseq) { while (iseq) {
idx = get_dyna_var_idx_at_raw(iseq, id); idx = get_dyna_var_idx_at_raw(iseq, id);
@ -1417,7 +1418,7 @@ get_dyna_var_idx(const rb_iseq_t *iseq, ID id, int *level, int *ls)
} }
if (idx < 0) { if (idx < 0) {
COMPILE_ERROR(iseq, ISEQ_LAST_LINE(iseq), COMPILE_ERROR(topmost_iseq, ISEQ_LAST_LINE(topmost_iseq),
"get_dyna_var_idx: -1"); "get_dyna_var_idx: -1");
} }