From 7aed8fe3b1c2bbdb5c51d191e32425ab5e2aaa00 Mon Sep 17 00:00:00 2001
From: Nobuhiro IMAI <nov@yo.rim.or.jp>
Date: Tue, 24 Mar 2020 15:24:01 +0900
Subject: [PATCH] follow up the actual line number

---
 lib/irb/ruby-lex.rb      |  5 ++++-
 test/irb/test_context.rb | 21 +++++++++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/lib/irb/ruby-lex.rb b/lib/irb/ruby-lex.rb
index 938e9d42a..ce94797da 100644
--- a/lib/irb/ruby-lex.rb
+++ b/lib/irb/ruby-lex.rb
@@ -223,7 +223,10 @@ def each_top_level_statement
             throw :TERM_INPUT if @line == ''
           else
             @line_no += l.count("\n")
-            next if l == "\n"
+            if l == "\n"
+              @exp_line_no += 1
+              next
+            end
             @line.concat l
             if @code_block_open or @ltype or @continue or @indent > 0
               next
diff --git a/test/irb/test_context.rb b/test/irb/test_context.rb
index 63e71e586..71e8ad1c0 100644
--- a/test/irb/test_context.rb
+++ b/test/irb/test_context.rb
@@ -572,5 +572,26 @@ def test_eval_input_with_long_exception
     ensure
       $VERBOSE = verbose
     end
+
+    def test_lineno
+      input = TestInputMethod.new([
+        "\n",
+        "__LINE__\n",
+        "__LINE__\n",
+        "\n",
+        "\n",
+        "__LINE__\n",
+      ])
+      irb = IRB::Irb.new(IRB::WorkSpace.new(Object.new), input)
+      out, err = capture_output do
+        irb.eval_input
+      end
+      assert_empty err
+      assert_pattern_list([
+          :*, /\b2\n/,
+          :*, /\b3\n/,
+          :*, /\b6\n/,
+        ], out)
+    end
   end
 end