Second comment line is not indented correctly

Input

fn main() {
    let x = 111;   /* First Comment line 1
                    * First Comment line 2 */

    let x = 222;   /* Second Comment line 1
		    * Second Comment line 2 */
}

Output

fn main() {
    let x = 111; /* First Comment line 1
                  * First Comment line 2 */

    let x = 222; /* Second Comment line 1
                    * Second Comment line 2 */
}

Expected output

fn main() {
    let x = 111; /* First Comment line 1
                  * First Comment line 2 */

    let x = 222; /* Second Comment line 1
                  * Second Comment line 2 */
}

The issue is the extra indentation of line 2 of the Second comment. The reason is that the * in that line is preceded by a tab and not by a space, and that light_rewrite_comment() is copying this preceding character from the original code.

If this is regarded as a bug that I can submit a PR with a fix from PR #4518 (simple fix - forcing the character preceding the * to be a space).

Meta

• rustfmt version: rustfmt 2.0.0-rc.2-nightly (30bda450 2020-11-18)
• From where did you install rustfmt?: self build