86f43f79ee
Combined with https://github.com/Homebrew/homebrew-test-bot/pull/247 this will test Homebrew's use of frozen strings in CI. After this we will then enable it for Homebrew developers and eventually all Homebrew users.
20 lines
316 B
Ruby
20 lines
316 B
Ruby
class IO
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def readline_nonblock(sep = $INPUT_RECORD_SEPARATOR)
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line = +""
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buffer = +""
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loop do
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break if buffer == sep
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read_nonblock(1, buffer)
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line.concat(buffer)
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end
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line.freeze
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rescue IO::WaitReadable, EOFError => e
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raise e if line.empty?
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line.freeze
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end
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end
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