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-rw-r--r--iseq.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/iseq.c b/iseq.c
index 2be4f89..20b7dc7 100644
--- a/iseq.c
+++ b/iseq.c
@@ -1060,11 +1060,11 @@ iseqw_to_a(VALUE self)
/* TODO: search algorithm is brute force.
this should be binary search or so. */
-static struct iseq_line_info_entry *
+static const struct iseq_line_info_entry *
get_line_info(const rb_iseq_t *iseq, size_t pos)
{
size_t i = 0, size = iseq->body->line_info_size;
- struct iseq_line_info_entry *table = iseq->body->line_info_table;
+ const struct iseq_line_info_entry *table = iseq->body->line_info_table;
const int debug = 0;
if (debug) {
@@ -1098,7 +1098,8 @@ get_line_info(const rb_iseq_t *iseq, size_t pos)
static unsigned int
find_line_no(const rb_iseq_t *iseq, size_t pos)
{
- struct iseq_line_info_entry *entry = get_line_info(iseq, pos);
+ const struct iseq_line_info_entry *entry = get_line_info(iseq, pos);
+
if (entry) {
return entry->line_no;
}