ruby-core

Issue #13626 has been updated by ioquatix (Samuel Williams).


By the way, I ended up implanting https://github.com/socketry/async-io/blob/master/lib/async/io/binary_string.rb which I guess is okay but it's not ideal.

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Feature #13626: Add String#byteslice!
https://bugs.ruby-lang.org/issues/13626#change-71466

* Author: ioquatix (Samuel Williams)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
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It's a common pattern in IO buffering, to read a part of a string while leaving the remainder.

~~~
# Consume only part of the read buffer:
result = @read_buffer.byteslice(0, size)
@read_buffer = @read_buffer.byteslice(size, @read_buffer.bytesize)
~~~

It would be nice if this code could be simplified to:

~~~
result = @read_buffer.byteslice!(size)
~~~

Additionally, this allows a significantly improved implementation by the interpreter.




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