Add missing definitions for IO and system standard libraries (find, pathname, pty, stringio, timeout, zlib) by zonuexe · Pull Request #3171 · ruby/rbs

zonuexe · 2026-09-26T22:49:22Z

Add missing methods, classes, and constants for find, pathname, pty, stringio, timeout, and zlib.

Note: pstore has been excluded as it is in ALUMNI_STDLIBS and planned to be removed from the rbs repo.

Changes

Ruby Method	Change	C function
`Find.prune`	Add singleton method `prune`	https://github.com/ruby/ruby/blob/v4.0.7/lib/find.rb#L86-L92
`Find::VERSION`	Add constant `VERSION`	https://github.com/ruby/ruby/blob/v4.0.7/lib/find.rb#L4-L6
`Pathname#empty?`	Add method `empty?` returning `bool`	https://github.com/ruby/ruby/blob/v4.0.7/ext/pathname/pathname.c#L1228-L1236
`Pathname.glob`	Add singleton method `glob`	https://github.com/ruby/ruby/blob/v4.0.7/ext/pathname/pathname.c#L1238-L1248
`Pathname#glob`	Add method `glob` returning `Array[Pathname]` or `Enumerator`	https://github.com/ruby/ruby/blob/v4.0.7/ext/pathname/pathname.c#L1250-L1262
`PTY::ChildExited`	Add exception class inheriting `RuntimeError`	https://github.com/ruby/ruby/blob/v4.0.7/ext/pty/pty.c
`PTY::ChildExited#status`	Add method `status` returning `Process::Status`	https://github.com/ruby/ruby/blob/v4.0.7/ext/pty/pty.c
`StringIO#length`	Add alias of `size` returning `Integer`	https://github.com/ruby/stringio/blob/master/ext/stringio/stringio.c
`StringIO::MAX_LENGTH`	Add constant `MAX_LENGTH`	https://github.com/ruby/stringio/blob/master/ext/stringio/stringio.c
`StringIO::VERSION`	Add constant `VERSION`	https://github.com/ruby/stringio/blob/master/ext/stringio/stringio.c
`Timeout::Error.handle_timeout`	Add singleton method `handle_timeout`	https://github.com/ruby/timeout/blob/master/lib/timeout.rb
`Zlib::InProgressError`	Add exception class inheriting `Zlib::Error`	https://github.com/ruby/zlib/blob/master/ext/zlib/zlib.c

ksss · 2026-09-27T04:01:59Z

  library "find"

+  def test_version
+    assert_instance_of String, Find::VERSION


Please use assert_const_type for testing constant types.

ksss · 2026-09-27T04:03:35Z

+  def test_transaction
+    Dir.mktmpdir do |dir|
+      file = File.join(dir, "test.pstore")
+      store = PStore.new(file)
+      store.transaction do
+        store[:key] = "val"
+      end
+      store.transaction(true) do
+        assert_equal "val", store[:key]
+      end
+    end
+  end


Please use assert_send_type to test the type of method.

ksss · 2026-09-27T04:04:14Z

+  def test_open
+    PTY.open do |master, slave|
+      assert_instance_of IO, master
+      assert_instance_of File, slave
+    end


Please use assert_const_type to test constants.

ksss · 2026-09-27T04:04:20Z

-    assert_send_type  "(*String command) { ([ ::IO, ::IO, ::Integer ]) -> ::Integer } -> nil",
-                      PTY, :getpty, "echo" do |r, w, pid| 1 end
+  def test_child_exited
+    assert_equal RuntimeError, PTY::ChildExited.superclass


Please use assert_const_type to test constants.

ksss · 2026-09-27T04:04:37Z

+  def test_constants
+    assert_instance_of String, StringIO::VERSION
+    assert_instance_of Integer, StringIO::MAX_LENGTH
  end


Please use assert_const_type to test constants.

ksss · 2026-09-27T04:04:55Z

+  def test_length
+    s = StringIO.new("hello")
+    assert_equal 5, s.length
+    assert_equal s.size, s.length
  end


Please use assert_send_type to test the method's type.

ksss · 2026-09-27T04:05:10Z

+      assert_instance_of Timeout::ExitException, exc
+      :ok
+    end
+    assert_equal :ok, res


Please use assert_send_type to test the method's type.

ksss · 2026-09-27T04:05:21Z

  end
+
+  def test_in_progress_error
+    assert_equal Zlib::Error, Zlib::InProgressError.superclass


Please use assert_const_type for testing constant types.

ksss · 2026-09-27T04:05:29Z

+
+  def test_handle_timeout
+    res = Timeout::Error.handle_timeout("msg") do |exc|
+      assert_instance_of Timeout::ExitException, exc


Please use assert_const_type for testing constant types.

ksss · 2026-09-27T04:05:34Z

  testing "singleton(::Timeout)"

+  def test_version
+    assert_instance_of String, Timeout::VERSION


Please use assert_const_type for testing constant types.

…athname, pty, stringio, timeout, zlib) Add missing methods, classes, and constants for `find`, `pathname`, `pty`, `stringio`, `timeout`, and `zlib`. Note: `pstore` has been excluded as it is in `ALUMNI_STDLIBS` and planned to be removed from the rbs repo. | Ruby Method | Change | C function | |---|---|---| | `Find.prune` | Add singleton method `prune` | https://github.com/ruby/ruby/blob/v4.0.7/lib/find.rb#L86-L92 | | `Find::VERSION` | Add constant `VERSION` | https://github.com/ruby/ruby/blob/v4.0.7/lib/find.rb#L4-L6 | | `Pathname#empty?` | Add method `empty?` returning `bool` | https://github.com/ruby/ruby/blob/v4.0.7/ext/pathname/pathname.c#L1228-L1236 | | `Pathname.glob` | Add singleton method `glob` | https://github.com/ruby/ruby/blob/v4.0.7/ext/pathname/pathname.c#L1238-L1248 | | `Pathname#glob` | Add method `glob` returning `Array[Pathname]` or `Enumerator` | https://github.com/ruby/ruby/blob/v4.0.7/ext/pathname/pathname.c#L1250-L1262 | | `PTY::ChildExited` | Add exception class inheriting `RuntimeError` | https://github.com/ruby/ruby/blob/v4.0.7/ext/pty/pty.c | | `PTY::ChildExited#status` | Add method `status` returning `Process::Status` | https://github.com/ruby/ruby/blob/v4.0.7/ext/pty/pty.c | | `StringIO#length` | Add alias of `size` returning `Integer` | https://github.com/ruby/stringio/blob/master/ext/stringio/stringio.c | | `StringIO::MAX_LENGTH` | Add constant `MAX_LENGTH` | https://github.com/ruby/stringio/blob/master/ext/stringio/stringio.c | | `StringIO::VERSION` | Add constant `VERSION` | https://github.com/ruby/stringio/blob/master/ext/stringio/stringio.c | | `Timeout::Error.handle_timeout` | Add singleton method `handle_timeout` | https://github.com/ruby/timeout/blob/master/lib/timeout.rb | | `Zlib::InProgressError` | Add exception class inheriting `Zlib::Error` | https://github.com/ruby/zlib/blob/master/ext/zlib/zlib.c |

zonuexe · 2026-09-27T07:35:48Z

Following the feedback on other PRs regarding ALUMNI_STDLIBS, I have excluded pstore from this PR (I will submit a separate PR to ruby/pstore).
Also updated constant assertions in test files to use assert_const_type.

ksss reviewed Sep 27, 2026

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zonuexe force-pushed the fix/stdlib-missing-io-system branch from 9ef5832 to 3e5819f Compare September 27, 2026 07:35

zonuexe changed the title ~~Add missing definitions for IO and system standard libraries~~ Add missing definitions for IO and system standard libraries (find, pathname, pty, stringio, timeout, zlib) Sep 27, 2026

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Add missing definitions for IO and system standard libraries (find, pathname, pty, stringio, timeout, zlib) - #3171

Add missing definitions for IO and system standard libraries (find, pathname, pty, stringio, timeout, zlib)#3171
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zonuexe:fix/stdlib-missing-io-system

zonuexe commented Sep 26, 2026 •

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zonuexe commented Sep 26, 2026 •

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