Questions about statement modifiers

[Agent Zhang]

Hi, there~

I think S04 says too little about statement modifiers. Please comment
on the following code samples. Are they valid Perl 6?

do { say } for 1..3;

{ say } for 1..3;

-> $i { say $i } for 1..3;

And how about similar variations for other statement modifiers, such
as while, given, if, until, and unless?

Thanks!

Agent

[Larry Wall]

On Wed, Aug 30, 2006 at 01:37:33PM +0800, Agent Zhang wrote:
: Hi, there~

:
: I think S04 says too little about statement modifiers. Please comment
: on the following code samples. Are they valid Perl 6?
:
: do { say } for 1..3;

The do-BLOCK construct does not allow statement modifiers.

: { say } for 1..3;

:
: -> $i { say $i } for 1..3;

These are both legal syntactically, but neither of these do anything
other than produce a closure muliple times without calling it.

: And how about similar variations for other statement modifiers, such

: as while, given, if, until, and unless?

Same. Will clarify S04.

Larry