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Rustc of course already WF-checked the field types at the definition site, but for error tainting of consts to work properly, there needs to be an error emitted at the use site. Previously, with no use-site error, we proceeded with CTFE and ran into ICEs since we are running code with type errors. Emitting use-site errors also brings struct-like constructors more in line with fn-like constructors since they already emit use-site errors for WF issues.
85 lines
3.5 KiB
Plaintext
85 lines
3.5 KiB
Plaintext
error[E0277]: the trait bound `K: Copy` is not satisfied
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--> $DIR/missing-bound-in-derive-copy-impl-2.rs:12:14
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LL | pub loc: Vector2<K>,
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| ^^^^^^^^^^ the trait `Copy` is not implemented for `K`
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note: required by a bound in `Vector2`
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--> $DIR/missing-bound-in-derive-copy-impl-2.rs:5:31
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LL | pub struct Vector2<T: Debug + Copy + Clone> {
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| ^^^^ required by this bound in `Vector2`
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help: consider further restricting this bound
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LL | pub struct AABB<K: Debug + std::marker::Copy> {
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| +++++++++++++++++++
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error[E0277]: the trait bound `K: Copy` is not satisfied
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--> $DIR/missing-bound-in-derive-copy-impl-2.rs:12:5
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LL | #[derive(Debug, Copy, Clone)]
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| ----- in this derive macro expansion
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LL | pub struct AABB<K: Debug> {
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LL | pub loc: Vector2<K>,
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| ^^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `K`, which is required by `Vector2<K>: Debug`
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note: required for `Vector2<K>` to implement `Debug`
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--> $DIR/missing-bound-in-derive-copy-impl-2.rs:4:10
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LL | #[derive(Debug, Copy, Clone)]
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| ^^^^^
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LL | pub struct Vector2<T: Debug + Copy + Clone> {
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| ---- unsatisfied trait bound introduced in this `derive` macro
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= note: required for the cast from `&Vector2<K>` to `&dyn Debug`
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= note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
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help: consider further restricting this bound
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LL | pub struct AABB<K: Debug + std::marker::Copy> {
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| +++++++++++++++++++
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error[E0277]: the trait bound `K: Copy` is not satisfied
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--> $DIR/missing-bound-in-derive-copy-impl-2.rs:12:5
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LL | #[derive(Debug, Copy, Clone)]
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| ----- in this derive macro expansion
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LL | pub struct AABB<K: Debug> {
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LL | pub loc: Vector2<K>,
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| ^^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `K`
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note: required by a bound in `Vector2`
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--> $DIR/missing-bound-in-derive-copy-impl-2.rs:5:31
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LL | pub struct Vector2<T: Debug + Copy + Clone> {
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| ^^^^ required by this bound in `Vector2`
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= note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
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help: consider further restricting this bound
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LL | pub struct AABB<K: Debug + std::marker::Copy> {
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| +++++++++++++++++++
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error[E0277]: the trait bound `K: Copy` is not satisfied
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--> $DIR/missing-bound-in-derive-copy-impl-2.rs:15:5
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LL | #[derive(Debug, Copy, Clone)]
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| ----- in this derive macro expansion
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...
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LL | pub size: Vector2<K>,
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| ^^^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `K`, which is required by `Vector2<K>: Clone`
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note: required for `Vector2<K>` to implement `Clone`
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--> $DIR/missing-bound-in-derive-copy-impl-2.rs:4:23
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LL | #[derive(Debug, Copy, Clone)]
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| ^^^^^
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LL | pub struct Vector2<T: Debug + Copy + Clone> {
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| ---- unsatisfied trait bound introduced in this `derive` macro
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= note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
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help: consider further restricting this bound
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LL | pub struct AABB<K: Debug + std::marker::Copy> {
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| +++++++++++++++++++
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error: aborting due to 4 previous errors
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For more information about this error, try `rustc --explain E0277`.
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