[erlang-questions] Can we change the semantics of match expressions in comprehensions?

Bjorn Gustavsson <>
Tue Feb 5 09:05:12 CET 2008

"Matthew Dempsky" <> writes:

> Below is a patch for the Erlang compiler that better optimizes
> generator expressions like "Pat <- [Expr]" in list comprehensions.  A
> similar patch could probably be built for binary comprehensions.
> (I doubt it's worth the added complexity to include, but I thought I'd
> share anyways.)

Thanks! I will have a look and might include it (or a similar optimization)
in R12B-2.

Björn Gustavsson, Erlang/OTP, Ericsson AB

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