Clippy · Correctness

Transmute evaluated before its bound check

clippy::eager_transmute

Move the transmute inside a closure passed to then(), so it only runs once the bound check has passed.

Category: Correctness
Default level: warn
Tier: P1
Producer: Clippy
Diff scope: line

Not a defect when

Every bit pattern of the source type is a valid value of the target type, so evaluating the transmute before the check can never produce an invalid value.

What it reads

Clippy, with the compiler behind it. The only pass that compiles.

Tier

Serious: worth interrupting other work for.

The tier bounds how severe a rule may be; its category bounds the tier.

Diff scope

The changed line itself.

What --scope contextual looks at to decide whether a change caused the finding.

Change it

Turn it off, or make it blocking, without touching the code it flags:

rust-doctor --rule clippy::eager_transmute=off .
rust-doctor --rule clippy::eager_transmute=error .

Set it once in rust-doctor.toml

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