Presumably we could remove it from fully-expanded code and then the compiler could re-transform this:
(let ([x e]) e0 ... x) into some bytecode that uses begin0, which would simplify the job of tools that process expanded code without changing performance. On Sun, Apr 29, 2012 at 5:07 PM, Robby Findler <[email protected]> wrote: > We debated this long ago and I think the conclusion was that we could > get a little more performance by including it at the bytecode level > that seemed worth having (the precise details (like if we had a > program where that mattered) escape me). > > Robby > > On Sun, Apr 29, 2012 at 1:03 PM, Danny Yoo <[email protected]> wrote: >> One question that I had stowed away a long time ago: why is begin0 >> part of the language? It seems redundant in the face of having 'let' >> to capture a value that we want to return at the end of some sequence. >> ____________________ >> Racket Users list: >> http://lists.racket-lang.org/users > > ____________________ > Racket Users list: > http://lists.racket-lang.org/users -- sam th [email protected] ____________________ Racket Users list: http://lists.racket-lang.org/users
