erb.rb: deprecate safe_level of ERB.new

Also, as it's in the middle of the list of 4 arguments, 3rd and 4th arguments
(trim_mode, eoutvar) are changed to keyword arguments.
Old ways to specify arguments are deprecated and warned now.

bin/erb: deprecate -S option.

We'll remove all of deprecated ones at Ruby 2.7+.

enc/make_encmake.rb: stopped using deprecated interface
ext/etc/mkconstants.rb: ditto
ext/socket/mkconstants.rb: ditto
sample/ripper/ruby2html.rb: ditto
spec/ruby/library/erb/defmethod/def_erb_method_spec.rb: ditto
spec/ruby/library/erb/new_spec.rb: ditto
test/erb/test_erb.rb: ditto
test/erb/test_erb_command.rb: ditto
tool/generic_erb.rb: ditto
tool/ruby_vm/helpers/dumper.rb: ditto
tool/transcode-tblgen.rb: ditto
lib/rdoc/erbio.rb: ditto
lib/rdoc/generator/darkfish.rb: ditto

[Feature #14256]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62529 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 12 insertions, 0 deletions

diff --git a/test/erb/test_erb_command.rb b/test/erb/test_erb_command.rb
index 7e2b874632..ac87b07740 100644
--- a/test/erb/test_erb_command.rb
+++ b/test/erb/test_erb_command.rb
@@ -15,4 +15,16 @@ class TestErbCommand < Test::Unit::TestCase
                        File.expand_path("../../../bin/erb", __FILE__)],
                       "<%=''.encoding.to_s%>", ["UTF-8"])
   end
+
+  # These interfaces will be removed at Ruby 2.7.
+  def test_deprecated_option
+    warnings = [
+      "warning: -S option of erb command is deprecated. Please do not use this.",
+      "warning: Passing safe_level with the 2nd argument of ERB.new is deprecated. Do not use it, and specify other arguments as keyword arguments.",
+    ]
+    assert_in_out_err(["-w",
+                       File.expand_path("../../../bin/erb", __FILE__),
+                       "-S", "0"],
+                      "hoge", ["hoge"], warnings)
+  end
 end