rqjs_ext/utils/
string.rs

1// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
2// SPDX-License-Identifier: Apache-2.0
3pub trait JoinToString<T> {
4    fn join_to_string<F>(&mut self, separator: &str, f: F) -> String
5    where
6        F: FnMut(&T) -> &str;
7}
8
9impl<T, I> JoinToString<T> for I
10where
11    I: Iterator<Item = T>,
12{
13    fn join_to_string<F>(&mut self, separator: &str, mut f: F) -> String
14    where
15        F: FnMut(&T) -> &str,
16    {
17        let mut result = String::new();
18
19        if let Some(first_item) = self.next() {
20            result.push_str(f(&first_item));
21
22            for item in self {
23                result.push_str(separator);
24                result.push_str(f(&item));
25            }
26        }
27
28        result
29    }
30}
rqjs_ext/utils/string.rs

rqjs_ext/utils/
string.rs
