From f540475134ea5aded740205631c0e9cea081c654 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 26 Jun 2016 23:56:57 +0000
Subject: Coverage on non-positive lines

* compile.c (ADD_TRACE): ignore trace instruction on non-positive
  line.
* parse.y (coverage): get rid of ArgumentError when the starting
  line number is not positive.  [ruby-core:76141] [Bug #12517]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55509 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 compile.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'compile.c')

diff --git a/compile.c b/compile.c
index cc496cbab8..33e0ba37f6 100644
--- a/compile.c
+++ b/compile.c
@@ -253,6 +253,7 @@ r_value(VALUE value)
 #define ADD_TRACE(seq, line, event) \
   do { \
       if ((event) == RUBY_EVENT_LINE && ISEQ_COVERAGE(iseq) && \
+	  (line) > 0 && \
 	  (line) != ISEQ_COMPILE_DATA(iseq)->last_coverable_line) { \
 	  RARRAY_ASET(ISEQ_COVERAGE(iseq), (line) - 1, INT2FIX(0)); \
 	  ISEQ_COMPILE_DATA(iseq)->last_coverable_line = (line); \
-- 
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