error: this transmute is always evaluated eagerly, even if the condition is false --> tests/ui/eager_transmute.rs:21:33 | 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 | LL | (op < 4).then(|| unsafe { std::mem::transmute(op) }) | ~~~~ ++ error: this transmute is always evaluated eagerly, even if the condition is false --> tests/ui/eager_transmute.rs:27:33 | LL | (op < 4).then_some(unsafe { std::mem::transmute::<_, Opcode>(op) }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | help: consider using `bool::then` to only transmute if the condition holds | LL | (op < 4).then(|| unsafe { std::mem::transmute::<_, Opcode>(op) }); | ~~~~ ++ error: this transmute is always evaluated eagerly, even if the condition is false --> tests/ui/eager_transmute.rs:28:33 | LL | (op > 4).then_some(unsafe { std::mem::transmute::<_, Opcode>(op) }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | help: consider using `bool::then` to only transmute if the condition holds | LL | (op > 4).then(|| unsafe { std::mem::transmute::<_, Opcode>(op) }); | ~~~~ ++ error: this transmute is always evaluated eagerly, even if the condition is false --> tests/ui/eager_transmute.rs:29:34 | LL | (op == 0).then_some(unsafe { std::mem::transmute::<_, Opcode>(op) }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | help: consider using `bool::then` to only transmute if the condition holds | LL | (op == 0).then(|| unsafe { std::mem::transmute::<_, Opcode>(op) }); | ~~~~ ++ error: this transmute is always evaluated eagerly, even if the condition is false --> tests/ui/eager_transmute.rs:31:68 | LL | let _: Option<Opcode> = (op > 0 && op < 10).then_some(unsafe { std::mem::transmute(op) }); | ^^^^^^^^^^^^^^^^^^^^^^^ | help: consider using `bool::then` to only transmute if the condition holds | LL | let _: Option<Opcode> = (op > 0 && op < 10).then(|| unsafe { std::mem::transmute(op) }); | ~~~~ ++ error: this transmute is always evaluated eagerly, even if the condition is false --> tests/ui/eager_transmute.rs:32:86 | LL | let _: Option<Opcode> = (op > 0 && op < 10 && unrelated == 0).then_some(unsafe { std::mem::transmute(op) }); | ^^^^^^^^^^^^^^^^^^^^^^^ | help: consider using `bool::then` to only transmute if the condition holds | LL | let _: Option<Opcode> = (op > 0 && op < 10 && unrelated == 0).then(|| unsafe { std::mem::transmute(op) }); | ~~~~ ++ error: this transmute is always evaluated eagerly, even if the condition is false --> tests/ui/eager_transmute.rs:35:84 | LL | let _: Option<Opcode> = (op2.foo[0] > 0 && op2.foo[0] < 10).then_some(unsafe { std::mem::transmute(op2.foo[0]) }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | help: consider using `bool::then` to only transmute if the condition holds | LL | let _: Option<Opcode> = (op2.foo[0] > 0 && op2.foo[0] < 10).then(|| unsafe { std::mem::transmute(op2.foo[0]) }); | ~~~~ ++ error: this transmute is always evaluated eagerly, even if the condition is false --> tests/ui/eager_transmute.rs:47:70 | LL | let _: Option<Opcode> = (1..=3).contains(&op).then_some(unsafe { std::mem::transmute(op) }); | ^^^^^^^^^^^^^^^^^^^^^^^ | help: consider using `bool::then` to only transmute if the condition holds | LL | let _: Option<Opcode> = (1..=3).contains(&op).then(|| unsafe { std::mem::transmute(op) }); | ~~~~ ++ error: this transmute is always evaluated eagerly, even if the condition is false --> tests/ui/eager_transmute.rs:48:83 | LL | let _: Option<Opcode> = ((1..=3).contains(&op) || op == 4).then_some(unsafe { std::mem::transmute(op) }); | ^^^^^^^^^^^^^^^^^^^^^^^ | help: consider using `bool::then` to only transmute if the condition holds | LL | let _: Option<Opcode> = ((1..=3).contains(&op) || op == 4).then(|| unsafe { std::mem::transmute(op) }); | ~~~~ ++ error: this transmute is always evaluated eagerly, even if the condition is false --> tests/ui/eager_transmute.rs:49:69 | LL | let _: Option<Opcode> = (1..3).contains(&op).then_some(unsafe { std::mem::transmute(op) }); | ^^^^^^^^^^^^^^^^^^^^^^^ | help: consider using `bool::then` to only transmute if the condition holds | LL | let _: Option<Opcode> = (1..3).contains(&op).then(|| unsafe { std::mem::transmute(op) }); | ~~~~ ++ error: this transmute is always evaluated eagerly, even if the condition is false --> tests/ui/eager_transmute.rs:50:68 | LL | let _: Option<Opcode> = (1..).contains(&op).then_some(unsafe { std::mem::transmute(op) }); | ^^^^^^^^^^^^^^^^^^^^^^^ | help: consider using `bool::then` to only transmute if the condition holds | LL | let _: Option<Opcode> = (1..).contains(&op).then(|| unsafe { std::mem::transmute(op) }); | ~~~~ ++ error: this transmute is always evaluated eagerly, even if the condition is false --> tests/ui/eager_transmute.rs:51:68 | LL | let _: Option<Opcode> = (..3).contains(&op).then_some(unsafe { std::mem::transmute(op) }); | ^^^^^^^^^^^^^^^^^^^^^^^ | help: consider using `bool::then` to only transmute if the condition holds | LL | let _: Option<Opcode> = (..3).contains(&op).then(|| unsafe { std::mem::transmute(op) }); | ~~~~ ++ error: this transmute is always evaluated eagerly, even if the condition is false --> tests/ui/eager_transmute.rs:52:69 | LL | let _: Option<Opcode> = (..=3).contains(&op).then_some(unsafe { std::mem::transmute(op) }); | ^^^^^^^^^^^^^^^^^^^^^^^ | help: consider using `bool::then` to only transmute if the condition holds | LL | let _: Option<Opcode> = (..=3).contains(&op).then(|| unsafe { std::mem::transmute(op) }); | ~~~~ ++ error: this transmute is always evaluated eagerly, even if the condition is false --> tests/ui/eager_transmute.rs:61:24 | LL | (op < 4).then_some(std::mem::transmute::<_, Opcode>(op)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | help: consider using `bool::then` to only transmute if the condition holds | LL | (op < 4).then(|| std::mem::transmute::<_, Opcode>(op)); | ~~~~ ++ error: this transmute is always evaluated eagerly, even if the condition is false --> tests/ui/eager_transmute.rs:90:62 | LL | let _: Option<NonZero<u8>> = (v1 > 0).then_some(unsafe { std::mem::transmute(v1) }); | ^^^^^^^^^^^^^^^^^^^^^^^ | help: consider using `bool::then` to only transmute if the condition holds | LL | let _: Option<NonZero<u8>> = (v1 > 0).then(|| unsafe { std::mem::transmute(v1) }); | ~~~~ ++ error: this transmute is always evaluated eagerly, even if the condition is false --> tests/ui/eager_transmute.rs:96:86 | LL | let _: Option<NonMaxU8> = (v2 < NonZero::new(255u8).unwrap()).then_some(unsafe { std::mem::transmute(v2) }); | ^^^^^^^^^^^^^^^^^^^^^^^ | help: consider using `bool::then` to only transmute if the condition holds | LL | let _: Option<NonMaxU8> = (v2 < NonZero::new(255u8).unwrap()).then(|| unsafe { std::mem::transmute(v2) }); | ~~~~ ++ error: this transmute is always evaluated eagerly, even if the condition is false --> tests/ui/eager_transmute.rs:102:93 | LL | let _: Option<NonZeroNonMaxU8> = (v2 < NonZero::new(255u8).unwrap()).then_some(unsafe { std::mem::transmute(v2) }); | ^^^^^^^^^^^^^^^^^^^^^^^ | help: consider using `bool::then` to only transmute if the condition holds | LL | let _: Option<NonZeroNonMaxU8> = (v2 < NonZero::new(255u8).unwrap()).then(|| unsafe { std::mem::transmute(v2) }); | ~~~~ ++ error: aborting due to 17 previous errors