diff options
| -rw-r--r-- | src/test/ui/type-alias-enum-variants/self-in-enum-definition.rs | 8 | ||||
| -rw-r--r-- | src/test/ui/type-alias-enum-variants/self-in-enum-definition.stderr | 28 |
2 files changed, 36 insertions, 0 deletions
diff --git a/src/test/ui/type-alias-enum-variants/self-in-enum-definition.rs b/src/test/ui/type-alias-enum-variants/self-in-enum-definition.rs new file mode 100644 index 00000000000..63b21faa62b --- /dev/null +++ b/src/test/ui/type-alias-enum-variants/self-in-enum-definition.rs @@ -0,0 +1,8 @@ +#[repr(u8)] +enum Alpha { + V1 = 41, + V2 = Self::V1 as u8 + 1, // OK; See #50072. + V3 = Self::V1 {} as u8 + 2, //~ ERROR cycle detected when const-evaluating +} + +fn main() {} diff --git a/src/test/ui/type-alias-enum-variants/self-in-enum-definition.stderr b/src/test/ui/type-alias-enum-variants/self-in-enum-definition.stderr new file mode 100644 index 00000000000..dc4050e44ab --- /dev/null +++ b/src/test/ui/type-alias-enum-variants/self-in-enum-definition.stderr @@ -0,0 +1,28 @@ +error[E0391]: cycle detected when const-evaluating + checking `Alpha::V3::{{constant}}#0` + --> $DIR/self-in-enum-definition.rs:5:10 + | +LL | V3 = Self::V1 {} as u8 + 2, + | ^^^^^^^^ + | +note: ...which requires const-evaluating `Alpha::V3::{{constant}}#0`... + --> $DIR/self-in-enum-definition.rs:5:10 + | +LL | V3 = Self::V1 {} as u8 + 2, + | ^^^^^^^^ + = note: ...which requires computing layout of `Alpha`... + = note: ...which again requires const-evaluating + checking `Alpha::V3::{{constant}}#0`, completing the cycle +note: cycle used when collecting item types in top-level module + --> $DIR/self-in-enum-definition.rs:1:1 + | +LL | / #[repr(u8)] +LL | | enum Alpha { +LL | | V1 = 41, +LL | | V2 = Self::V1 as u8 + 1, // OK; See #50072. +... | +LL | | +LL | | fn main() {} + | |____________^ + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0391`. |