Re^2: Why Perl Is Not My Favourite Functional Programming Language

[TimToady]

Some slight tweaking is in order. The backslashes are not needed, since &foo is already a reference in scalar context. You don't need the dot to dereference the routine value either, though it doesn't hurt anything. You don't need the last $ if you bind to &plus_op_subref instead. Also, one thing you couldn't know, since I just changed it, is that all operator names now use a variant of hash subscript syntax, so the name of the builtin addition operator is any of:

    infix:«+»
    infix:<<+>>
    infix:{'+'}

So I'd currently write your code as:

    my &plus_op_subref = &infix:«+»;
    my &not_op_subref  = &prefix:«!»;

    say plus_op_subref(3, 2); # 5

See http://www.wall.org/~larry/syn for preprints of the most recent Synopses. And http://www.wall.org/~larry/apo has Apocalypses annotated with "Update" sections.

[iblech]

Just read the message on p6l :)

Another idea, I think it'd be most efficient if we'd bind &plus_op_subref to &infix:«+» at compile-time:

    my &plus_op_subref ::= &infix:«+»;
    my &not_op_subref  ::= &prefix:«!»;

    say plus_op_subref(3, 2); # 5

Discussing about Perl 6 is fun :)