Re: surprising consequences

[Rod Adams]

Juerd wrote:
Assuming the following are true:
   A: "if" is now a normal function
   B: "foo() + 3" is (foo) + 3, foo doesn't get 3.
Then does that mean we're stuck with:
   C: "if($foo) { say 'foo' }" being a syntax error?
I currently think A is wrong. Am I right?
Juerd
 

There will always be various control constructs that cannot be written 
as an equivalent function. Otherwise, there is no way to write the 
higher level ones.

I suspect that "goto" and "if" are on this list. Possibly they are the 
only things on this list, but "return" is a strong contender.

Additionally, any predicate form cannot be a "normal function". You 
might be able to define an &infix:<for>, but getting to where you don't 
need the {}'s on the LHS block, and getting a proper list on the RHS 
gets rather abnormal.


Something that crossed my mind while writing this: Does
   for { say } <== @a;
Work?
-- Rod Adams