Re: Little switch improvement: get the used variable

Hi everyone, On 24 Sep 2014, at 23:17, Rowan Collins <rowan.collins@gmail.com> wrote: > switch ( $number ) use ( === ) { [...] > switch ( $age ) use ( < ) { [...] > switch ( calculate_age($birth_date, $departure_date) as $age_at_departure ) use ( < ) { [...] > switch ( $product ) use ( instanceOf ) { All of these examples are trying to reinvent concepts that can be solved with guards, pattern matching and overloading in other languages. In Erlang one can write the same function name multiple times and guard it ("when" in fact(N)) or match the value ("0" in fact(0)). fact(N) when N>0 -> N * fact(N-1); fact(0) -> 1. In Scala one could replicate the instanceof behaviour by defining multiple methods of the same name with different argument types. So I would rather see us making method declarations more flexible to cover those use cases instead of shoving all the functionality into switch/case. Last time I checked the interpreter to try and introduce more features around method declarations, it looks incredibly hard to do in a way that performs well. What is our stance on adding advanced features around declaring methods? cu, Lars

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