Ruby Issue Tracking System

03/27/2018

04:17 AM Ruby Feature #14624: #{nil} allocates a fresh empty string each time

Closer to the string interpolation optimization part. The problem with `"#{nil}"` is that it allocates two empty strings each time. I feel like it would be possible to do this with zero/one allocation. I don't know what the underlying co... bumblingbear (Dillon Welch)

02:50 AM Ruby Feature #14624: #{nil} allocates a fresh empty string each time

That sounds fine to me!
Hanmac (Hans Mackowiak) wrote:
> i have a problem with that, what if someone might do:
> ...
bumblingbear (Dillon Welch)

03/23/2018

03:49 AM Ruby Feature #14624 (Open): #{nil} allocates a fresh empty string each time

This causes a bunch of unnecessary string allocations in the following scenario: `"#{'rails' unless boolean_condition} is great"`. Each time this line is called when `boolean_condition` is true, it evaluates to `nil` and when `nil` is in... bumblingbear (Dillon Welch)