On 1/12/12 9:47 AM, Graydon Hoare wrote:
More generally though, I think block-centric is best, and perhaps
provide a standard vec method that appends-to-a-vec everything fed to it.
+1. I was beginning to work on a generic iter module that provided
meta-programming features for blocks. One of them would be to_list:
type iterfn<T> = block(block(t: T));
fn to_list<T>(iter: iterfn<T>) -> [T] {
let result = [];
iter {|i| result += [i]; }
ret result;
}
I believe you could then use this like:
let keys = to_list(bind hash.keys(_));
or with an appropriate interface/impl pair:
let keys = bind hash.keys(_).to_list();
or even:
let keys = hash.keys.to_list();
if we implemented the syntax that "hash.keys" where "keys" is a method.
Niko
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