no-erasing-operation

Disallow operations that erase their operand into a constant

An integral operation with an erasing operand produces a constant whenever the operation completes.
Instead, you SHOULD correct the operator or constant operand that caused the value to be discarded.

- Category: suspicious
- Level: warning
- Fix: none
- Scope: module

Reported

function erase(value: int32): int32 {
    return value * 0;
}
Accepted

function retain(value: int32): int32 {
    return value;
}
Prior art

- Clippy · erasingop

language/linter/src/rules/suspicious/noerasingoperation.rs:6