37ed7a4438
This is a very large commit since a lot needs to be changed in order to make the tests pass. The salient changes are: - `ConstArgKind` gets a new `Path` variant, and all const params are now represented using it. Non-param paths still use `ConstArgKind::Anon` to prevent this change from getting too large, but they will soon use the `Path` variant too. - `ConstArg` gets a distinct `hir_id` field and its own variant in `hir::Node`. This affected many parts of the compiler that expected the parent of an `AnonConst` to be the containing context (e.g., an array repeat expression). They have been changed to check the "grandparent" where necessary. - Some `ast::AnonConst`s now have their `DefId`s created in rustc_ast_lowering rather than `DefCollector`. This is because in some cases they will end up becoming a `ConstArgKind::Path` instead, which has no `DefId`. We have to solve this in a hacky way where we guess whether the `AnonConst` could end up as a path const since we can't know for sure until after name resolution (`N` could refer to a free const or a nullary struct). If it has no chance as being a const param, then we create a `DefId` in `DefCollector` -- otherwise we decide during ast_lowering. This will have to be updated once all path consts use `ConstArgKind::Path`. - We explicitly use `ConstArgHasType` for array lengths, rather than implicitly relying on anon const type feeding -- this is due to the addition of `ConstArgKind::Path`. - Some tests have their outputs changed, but the changes are for the most part minor (including removing duplicate or almost-duplicate errors). One test now ICEs, but it is for an incomplete, unstable feature and is now tracked at #127009.
123 lines
4.9 KiB
Text
123 lines
4.9 KiB
Text
error: the constant `W` is not of type `usize`
|
|
--> $DIR/transmute-fail.rs:12:42
|
|
|
|
|
LL | fn bar<const W: bool, const H: usize>(v: [[u32; H]; W]) -> [[u32; W]; H] {
|
|
| ^^^^^^^^^^^^^ expected `usize`, found `bool`
|
|
|
|
error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
|
|
--> $DIR/transmute-fail.rs:7:5
|
|
|
|
|
LL | std::mem::transmute(v)
|
|
| ^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= note: source type: `[[u32; H+1]; W]` (size can vary because of [u32; H+1])
|
|
= note: target type: `[[u32; W+1]; H]` (size can vary because of [u32; W+1])
|
|
|
|
error: the constant `W` is not of type `usize`
|
|
--> $DIR/transmute-fail.rs:15:5
|
|
|
|
|
LL | std::mem::transmute(v)
|
|
| ^^^^^^^^^^^^^^^^^^^ expected `usize`, found `bool`
|
|
|
|
error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
|
|
--> $DIR/transmute-fail.rs:22:5
|
|
|
|
|
LL | std::mem::transmute(v)
|
|
| ^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= note: source type: `[[u32; H]; W]` (size can vary because of [u32; H])
|
|
= note: target type: `[u32; W * H * H]` (this type does not have a fixed size)
|
|
|
|
error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
|
|
--> $DIR/transmute-fail.rs:29:5
|
|
|
|
|
LL | std::mem::transmute(v)
|
|
| ^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= note: source type: `[[[u32; 8888888]; 9999999]; 777777777]` (values of the type `[[u32; 8888888]; 9999999]` are too big for the current architecture)
|
|
= note: target type: `[[[u32; 9999999]; 777777777]; 8888888]` (values of the type `[[u32; 9999999]; 777777777]` are too big for the current architecture)
|
|
|
|
error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
|
|
--> $DIR/transmute-fail.rs:36:5
|
|
|
|
|
LL | std::mem::transmute(v)
|
|
| ^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= note: source type: `[[u32; H]; W]` (size can vary because of [u32; H])
|
|
= note: target type: `[[u32; W]; H]` (size can vary because of [u32; W])
|
|
|
|
error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
|
|
--> $DIR/transmute-fail.rs:49:5
|
|
|
|
|
LL | std::mem::transmute(v)
|
|
| ^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= note: source type: `[[u32; H]; W]` (size can vary because of [u32; H])
|
|
= note: target type: `[u32; W * H]` (this type does not have a fixed size)
|
|
|
|
error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
|
|
--> $DIR/transmute-fail.rs:56:5
|
|
|
|
|
LL | std::mem::transmute(v)
|
|
| ^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= note: source type: `[u32; H*W]` (this type does not have a fixed size)
|
|
= note: target type: `[[u32; W]; H]` (size can vary because of [u32; W])
|
|
|
|
error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
|
|
--> $DIR/transmute-fail.rs:65:5
|
|
|
|
|
LL | std::mem::transmute(v)
|
|
| ^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= note: source type: `[[[u32; D]; H]; W]` (size can vary because of [u32; D])
|
|
= note: target type: `[u32; D * W * H]` (this type does not have a fixed size)
|
|
|
|
error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
|
|
--> $DIR/transmute-fail.rs:74:5
|
|
|
|
|
LL | std::mem::transmute(v)
|
|
| ^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= note: source type: `[[[u32; D]; H]; W]` (size can vary because of [u32; D])
|
|
= note: target type: `[[u32; D * W]; H]` (size can vary because of [u32; D * W])
|
|
|
|
error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
|
|
--> $DIR/transmute-fail.rs:81:5
|
|
|
|
|
LL | std::mem::transmute(v)
|
|
| ^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= note: source type: `[u16; L]` (this type does not have a fixed size)
|
|
= note: target type: `[u8; L * 2]` (this type does not have a fixed size)
|
|
|
|
error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
|
|
--> $DIR/transmute-fail.rs:88:5
|
|
|
|
|
LL | std::mem::transmute(v)
|
|
| ^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= note: source type: `[u8; L * 2]` (this type does not have a fixed size)
|
|
= note: target type: `[u16; L]` (this type does not have a fixed size)
|
|
|
|
error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
|
|
--> $DIR/transmute-fail.rs:95:5
|
|
|
|
|
LL | std::mem::transmute(v)
|
|
| ^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= note: source type: `[u8; L]` (this type does not have a fixed size)
|
|
= note: target type: `[[u8; 1]; L]` (this type does not have a fixed size)
|
|
|
|
error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
|
|
--> $DIR/transmute-fail.rs:104:5
|
|
|
|
|
LL | std::mem::transmute(v)
|
|
| ^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= note: source type: `[[u32; 2 * H]; W + W]` (size can vary because of [u32; 2 * H])
|
|
= note: target type: `[[u32; W + W]; 2 * H]` (size can vary because of [u32; W + W])
|
|
|
|
error: aborting due to 14 previous errors
|
|
|
|
For more information about this error, try `rustc --explain E0512`.
|