- lexer.rl: allow spaces before comments-before-leading-dot. (#654)

whitequark · Mar 2, 2020 · 41ec100 · 41ec100
1 parent 323b6ab
commit 41ec100
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Showing 2 changed files with 15 additions and 1 deletion.
diff --git a/lib/parser/lexer.rl b/lib/parser/lexer.rl
@@ -2473,7 +2473,7 @@ class Parser::Lexer
 
       # Here we use '\n' instead of w_newline to not modify @newline_s
       # and eventually properly emit tNL
-      (w_space_comment '\n')+
+      (c_space* w_space_comment '\n')+
       => {
         if @version < 27
           # Ruby before 2.7 doesn't support comments before leading dot.

diff --git a/test/test_parser.rb b/test/test_parser.rb
@@ -7644,12 +7644,26 @@ def test_comments_before_leading_dot__27
       %q{},
       SINCE_2_7)
 
+    assert_parses(
+      s(:send,
+        s(:send, nil, :a), :foo),
+      %Q{a #\n  #\n.foo\n},
+      %q{},
+      SINCE_2_7)
+
     assert_parses(
       s(:csend,
         s(:send, nil, :a), :foo),
       %Q{a #\n#\n&.foo\n},
       %q{},
       SINCE_2_7)
+
+    assert_parses(
+      s(:csend,
+        s(:send, nil, :a), :foo),
+      %Q{a #\n  #\n&.foo\n},
+      %q{},
+      SINCE_2_7)
   end
 
   def test_comments_before_leading_dot__before_27