index.nct

//! Allocation-backed iterator terminal operations.
//!
//! This module depends on both the allocation-free iterator contract and the
//! destination collection. Keeping that dependency here preserves an acyclic
//! graph between `std/iter` and collection modules.

use std/iter.Iterator
use std/vec.Vec

/// Consumes `source` into a newly allocated Vec.
pub func to_vec<I>(source: I): Vec<I.Item> from source where I: Iterator {
    var iterator = move source
    var result: Vec<I.Item> = Vec.empty()
    while true {
        let item = iterator.next() otherwise { break }
        result.push(move item)
    }
    return move result
}