Forward keyword arguments for Pathname#each_line [Bug #17589]

Merged: https://github.com/ruby/ruby/pull/4128

ext/pathname/pathname.c

@@ -360,10 +360,10 @@ path_each_line(int argc, VALUE *argv, VALUE self)
     args[0] = get_strpath(self);
     n = rb_scan_args(argc, argv, "03", &args[1], &args[2], &args[3]);
     if (rb_block_given_p()) {
-        return rb_block_call(rb_cFile, id_foreach, 1+n, args, 0, 0);
+        return rb_block_call_kw(rb_cFile, id_foreach, 1+n, args, 0, 0, RB_PASS_CALLED_KEYWORDS);
     }
     else {
-        return rb_funcallv(rb_cFile, id_foreach, 1+n, args);
+        return rb_funcallv_kw(rb_cFile, id_foreach, 1+n, args, RB_PASS_CALLED_KEYWORDS);
     }
 }
 

test/pathname/test_pathname.rb

@@ -707,6 +707,32 @@ class TestPathname < Test::Unit::TestCase
     }
   end
 
+  def test_each_line_opts
+    with_tmpchdir('rubytest-pathname') {|dir|
+      open("a", "w") {|f| f.puts 1, 2 }
+      a = []
+      Pathname("a").each_line(chomp: true) {|line| a << line }
+      assert_equal(["1", "2"], a)
+
+      a = []
+      Pathname("a").each_line("2", chomp: true) {|line| a << line }
+      assert_equal(["1\n", "\n"], a)
+
+      a = []
+      Pathname("a").each_line(1, chomp: true) {|line| a << line }
+      assert_equal(["1", "", "2", ""], a)
+
+      a = []
+      Pathname("a").each_line("2", 1, chomp: true) {|line| a << line }
+      assert_equal(["1", "\n", "", "\n"], a)
+
+      a = []
+      enum = Pathname("a").each_line(chomp: true)
+      enum.each {|line| a << line }
+      assert_equal(["1", "2"], a)
+    }
+  end
+
   def test_readlines
     with_tmpchdir('rubytest-pathname') {|dir|
       open("a", "w") {|f| f.puts 1, 2 }