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authorko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2017-11-10 05:26:52 (GMT)
committerko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2017-11-10 05:26:52 (GMT)
commit61e4c999622d7f028a15379b5cd91ad1a25c2799 (patch)
tree6f313b2a2d4767a8e316f2522e8e59e4e57329f0 /vm_backtrace.c
parent324b6d306d7da4fd3fc109e4e9781c782b64369f (diff)
refactoring about source line.
* iseq.c (find_line_no): renamed to rb_iseq_line_no(). * vm_backtrace.c (calc_lineno): add a comment why we need to use "pos-1". git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60733 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'vm_backtrace.c')
-rw-r--r--vm_backtrace.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/vm_backtrace.c b/vm_backtrace.c
index f22e3f2..fd34081 100644
--- a/vm_backtrace.c
+++ b/vm_backtrace.c
@@ -31,7 +31,9 @@ id2str(ID id)
inline static int
calc_lineno(const rb_iseq_t *iseq, const VALUE *pc)
{
- return rb_iseq_line_no(iseq, pc - iseq->body->iseq_encoded);
+ size_t pos = (size_t)(pc - iseq->body->iseq_encoded);
+ /* use pos-1 because PC points next instruction at the beggining of instruction */
+ return rb_iseq_line_no(iseq, pos - 1);
}
int