RS.CLIPPY.SEEK_TO_START_INSTEAD_OF_REWIND

Jumping to the start of stream using `seek` method

This checker is a Clippy lint created by The Rust Project Contributors. The documentation shown here is a copy of the original documentation for: seek_to_start_instead_of_rewind. Copyright ©2025 The Rust Team. All rights reserved.

What it does

Checks for jumps to the start of a stream that implements Seek and uses the seek method providing Start as parameter.

Why is this bad?

Readability. There is a specific method that was implemented for this exact scenario.

Example

fn foo<T: io::Seek>(t: &mut T) {
    t.seek(io::SeekFrom::Start(0));
}

Use instead:

fn foo<T: io::Seek>(t: &mut T) {
    t.rewind();
}