rust-clippy/tests/ui/eager_transmute.stderr

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error: this transmute is always evaluated eagerly, even if the condition is false
--> $DIR/eager_transmute.rs:16:33
|
LL | (op < 4).then_some(unsafe { std::mem::transmute(op) })
| ^^^^^^^^^^^^^^^^^^^^^^^
|
= note: `-D clippy::eager-transmute` implied by `-D warnings`
= help: to override `-D warnings` add `#[allow(clippy::eager_transmute)]`
help: consider using `bool::then` to only transmute if the condition holds
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LL | (op < 4).then(|| unsafe { std::mem::transmute(op) })
| ~~~~ ++
error: this transmute is always evaluated eagerly, even if the condition is false
--> $DIR/eager_transmute.rs:22:33
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LL | (op < 4).then_some(unsafe { std::mem::transmute::<_, Opcode>(op) });
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: consider using `bool::then` to only transmute if the condition holds
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LL | (op < 4).then(|| unsafe { std::mem::transmute::<_, Opcode>(op) });
| ~~~~ ++
error: this transmute is always evaluated eagerly, even if the condition is false
--> $DIR/eager_transmute.rs:23:33
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LL | (op > 4).then_some(unsafe { std::mem::transmute::<_, Opcode>(op) });
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: consider using `bool::then` to only transmute if the condition holds
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LL | (op > 4).then(|| unsafe { std::mem::transmute::<_, Opcode>(op) });
| ~~~~ ++
error: this transmute is always evaluated eagerly, even if the condition is false
--> $DIR/eager_transmute.rs:24:34
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LL | (op == 0).then_some(unsafe { std::mem::transmute::<_, Opcode>(op) });
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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help: consider using `bool::then` to only transmute if the condition holds
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LL | (op == 0).then(|| unsafe { std::mem::transmute::<_, Opcode>(op) });
| ~~~~ ++
error: this transmute is always evaluated eagerly, even if the condition is false
--> $DIR/eager_transmute.rs:28:24
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LL | (op < 4).then_some(std::mem::transmute::<_, Opcode>(op));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: consider using `bool::then` to only transmute if the condition holds
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LL | (op < 4).then(|| std::mem::transmute::<_, Opcode>(op));
| ~~~~ ++
error: this transmute is always evaluated eagerly, even if the condition is false
--> $DIR/eager_transmute.rs:57:60
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LL | let _: Option<NonZeroU8> = (v1 > 0).then_some(unsafe { std::mem::transmute(v1) });
| ^^^^^^^^^^^^^^^^^^^^^^^
|
help: consider using `bool::then` to only transmute if the condition holds
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LL | let _: Option<NonZeroU8> = (v1 > 0).then(|| unsafe { std::mem::transmute(v1) });
| ~~~~ ++
error: this transmute is always evaluated eagerly, even if the condition is false
--> $DIR/eager_transmute.rs:63:86
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LL | let _: Option<NonMaxU8> = (v2 < NonZeroU8::new(255).unwrap()).then_some(unsafe { std::mem::transmute(v2) });
| ^^^^^^^^^^^^^^^^^^^^^^^
|
help: consider using `bool::then` to only transmute if the condition holds
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LL | let _: Option<NonMaxU8> = (v2 < NonZeroU8::new(255).unwrap()).then(|| unsafe { std::mem::transmute(v2) });
| ~~~~ ++
error: this transmute is always evaluated eagerly, even if the condition is false
--> $DIR/eager_transmute.rs:69:93
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LL | let _: Option<NonZeroNonMaxU8> = (v2 < NonZeroU8::new(255).unwrap()).then_some(unsafe { std::mem::transmute(v2) });
| ^^^^^^^^^^^^^^^^^^^^^^^
|
help: consider using `bool::then` to only transmute if the condition holds
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LL | let _: Option<NonZeroNonMaxU8> = (v2 < NonZeroU8::new(255).unwrap()).then(|| unsafe { std::mem::transmute(v2) });
| ~~~~ ++
error: aborting due to 8 previous errors