Re:Golang proposal: container/: generic collection types
by tialaramex on Friday July 31, 2026 @06:51PM
(#49129423)
Often the mutation might have performance benefits.
Of course if you're Rust the stdlib and compiler might conspire to optimise an operation you wrote which reads as non-mutating into an actual mutation which was faster.
This is another benefit of the "destructive move". If I consume X and spit out Y, the X is gone, so it's OK if secretly I just mutate X and tell you that's Y now.
Of course if you're Rust the stdlib and compiler might conspire to optimise an operation you wrote which reads as non-mutating into an actual mutation which was faster.
This is another benefit of the "destructive move". If I consume X and spit out Y, the X is gone, so it's OK if secretly I just mutate X and tell you that's Y now.