36febe1f4d
This patch updates the error reporting when Safe Transmute is not possible between 2 types by including the reason. Also, fix some small bugs that occur when computing the `Answer` for transmutability.
130 lines
5.7 KiB
Plaintext
130 lines
5.7 KiB
Plaintext
error[E0277]: `[String; 0]` cannot be safely transmuted into `()` in the defining scope of `assert::Context`
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--> $DIR/should_require_well_defined_layout.rs:26:52
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LL | assert::is_maybe_transmutable::<repr_rust, ()>();
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| ^^ `[String; 0]` does not have a well-specified layout
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note: required by a bound in `is_maybe_transmutable`
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--> $DIR/should_require_well_defined_layout.rs:13:14
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LL | pub fn is_maybe_transmutable<Src, Dst>()
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| --------------------- required by a bound in this function
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LL | where
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LL | Dst: BikeshedIntrinsicFrom<Src, Context, {
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| ______________^
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LL | | Assume::ALIGNMENT
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LL | | .and(Assume::LIFETIMES)
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LL | | .and(Assume::SAFETY)
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LL | | .and(Assume::VALIDITY)
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LL | | }>
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| |__________^ required by this bound in `is_maybe_transmutable`
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error[E0277]: `u128` cannot be safely transmuted into `[String; 0]` in the defining scope of `assert::Context`
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--> $DIR/should_require_well_defined_layout.rs:27:47
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LL | assert::is_maybe_transmutable::<u128, repr_rust>();
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| ^^^^^^^^^ `[String; 0]` does not have a well-specified layout
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note: required by a bound in `is_maybe_transmutable`
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--> $DIR/should_require_well_defined_layout.rs:13:14
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LL | pub fn is_maybe_transmutable<Src, Dst>()
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| --------------------- required by a bound in this function
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LL | where
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LL | Dst: BikeshedIntrinsicFrom<Src, Context, {
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| ______________^
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LL | | Assume::ALIGNMENT
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LL | | .and(Assume::LIFETIMES)
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LL | | .and(Assume::SAFETY)
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LL | | .and(Assume::VALIDITY)
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LL | | }>
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| |__________^ required by this bound in `is_maybe_transmutable`
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error[E0277]: `[String; 1]` cannot be safely transmuted into `()` in the defining scope of `assert::Context`
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--> $DIR/should_require_well_defined_layout.rs:32:52
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LL | assert::is_maybe_transmutable::<repr_rust, ()>();
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| ^^ `[String; 1]` does not have a well-specified layout
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note: required by a bound in `is_maybe_transmutable`
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--> $DIR/should_require_well_defined_layout.rs:13:14
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LL | pub fn is_maybe_transmutable<Src, Dst>()
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| --------------------- required by a bound in this function
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LL | where
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LL | Dst: BikeshedIntrinsicFrom<Src, Context, {
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| ______________^
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LL | | Assume::ALIGNMENT
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LL | | .and(Assume::LIFETIMES)
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LL | | .and(Assume::SAFETY)
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LL | | .and(Assume::VALIDITY)
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LL | | }>
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| |__________^ required by this bound in `is_maybe_transmutable`
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error[E0277]: `u128` cannot be safely transmuted into `[String; 1]` in the defining scope of `assert::Context`
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--> $DIR/should_require_well_defined_layout.rs:33:47
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LL | assert::is_maybe_transmutable::<u128, repr_rust>();
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| ^^^^^^^^^ `[String; 1]` does not have a well-specified layout
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note: required by a bound in `is_maybe_transmutable`
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--> $DIR/should_require_well_defined_layout.rs:13:14
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LL | pub fn is_maybe_transmutable<Src, Dst>()
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| --------------------- required by a bound in this function
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LL | where
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LL | Dst: BikeshedIntrinsicFrom<Src, Context, {
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| ______________^
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LL | | Assume::ALIGNMENT
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LL | | .and(Assume::LIFETIMES)
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LL | | .and(Assume::SAFETY)
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LL | | .and(Assume::VALIDITY)
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LL | | }>
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| |__________^ required by this bound in `is_maybe_transmutable`
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error[E0277]: `[String; 2]` cannot be safely transmuted into `()` in the defining scope of `assert::Context`
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--> $DIR/should_require_well_defined_layout.rs:38:52
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LL | assert::is_maybe_transmutable::<repr_rust, ()>();
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| ^^ `[String; 2]` does not have a well-specified layout
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note: required by a bound in `is_maybe_transmutable`
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--> $DIR/should_require_well_defined_layout.rs:13:14
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LL | pub fn is_maybe_transmutable<Src, Dst>()
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| --------------------- required by a bound in this function
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LL | where
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LL | Dst: BikeshedIntrinsicFrom<Src, Context, {
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| ______________^
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LL | | Assume::ALIGNMENT
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LL | | .and(Assume::LIFETIMES)
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LL | | .and(Assume::SAFETY)
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LL | | .and(Assume::VALIDITY)
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LL | | }>
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| |__________^ required by this bound in `is_maybe_transmutable`
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error[E0277]: `u128` cannot be safely transmuted into `[String; 2]` in the defining scope of `assert::Context`
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--> $DIR/should_require_well_defined_layout.rs:39:47
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LL | assert::is_maybe_transmutable::<u128, repr_rust>();
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| ^^^^^^^^^ `[String; 2]` does not have a well-specified layout
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note: required by a bound in `is_maybe_transmutable`
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--> $DIR/should_require_well_defined_layout.rs:13:14
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LL | pub fn is_maybe_transmutable<Src, Dst>()
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| --------------------- required by a bound in this function
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LL | where
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LL | Dst: BikeshedIntrinsicFrom<Src, Context, {
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| ______________^
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LL | | Assume::ALIGNMENT
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LL | | .and(Assume::LIFETIMES)
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LL | | .and(Assume::SAFETY)
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LL | | .and(Assume::VALIDITY)
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LL | | }>
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| |__________^ required by this bound in `is_maybe_transmutable`
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error: aborting due to 6 previous errors
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For more information about this error, try `rustc --explain E0277`.
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