upstream/mercurial-mirror Files · mercurial/thirdparty/attr/converters.py

rust: update the minimum version of Rust...

rust: update the minimum version of Rust Debian Bullseye has just been released, and it carries `rustc 1.48.0`. This actually implies a regression that we can't really do anything about in `rhg`. See https://github.com/rust-lang/rust/issues/88825. In short, closed (or bad) standard file descriptors are reopened silently with no way of telling by the Rust runtime before `main` is executed. This means that closed fds are not forwarded to the subprocess we run in case of fallback. This is a bit sad, but probably not something worth worrying too much about. Differential Revision: https://phab.mercurial-scm.org/D11341

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      """

      Commonly useful converters.

      """

      from __future__ import absolute_import, division, print_function

      def optional(converter):

          """

          A converter that allows an attribute to be optional. An optional attribute

          is one which can be set to ``None``.

          :param callable converter: the converter that is used for non-``None``

              values.

          ..  versionadded:: 17.1.0

          """

          def optional_converter(val):

              if val is None:

                  return None

              return converter(val)

          return optional_converter

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				"""
				Commonly useful converters.
				"""

				from __future__ import absolute_import, division, print_function


				def optional(converter):
				"""
				A converter that allows an attribute to be optional. An optional attribute
				is one which can be set to ``None``.

				:param callable converter: the converter that is used for non-``None``
				values.

				.. versionadded:: 17.1.0
				"""

				def optional_converter(val):
				if val is None:
				return None
				return converter(val)

				return optional_converter