RS.CLIPPY.EQUATABLE_IF_LET

Using pattern matching instead of equality

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

What it does

Checks for pattern matchings that can be expressed using equality.

Why is this bad?

It reads better and has less cognitive load because equality won't cause binding.
It is a Yoda condition. Yoda conditions are widely criticized for increasing the cognitive load of reading the code.
Equality is a simple bool expression and can be merged with && and || and reuse if blocks

Example

if let Some(2) = x {
    do_thing();
}

Use instead:

if x == Some(2) {
    do_thing();
}