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Rollup merge of rust-lang#62916 - Centril:self-in-enum-def, r=oli-obk
Add test `self-in-enum-definition` Apparently there was no test covering this... r? @oli-obk cc @petrochenkov
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src/test/ui/type-alias-enum-variants/self-in-enum-definition.rs
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#[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 | ||
} | ||
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fn main() {} |
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src/test/ui/type-alias-enum-variants/self-in-enum-definition.stderr
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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() {} | ||
| |____________^ | ||
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error: aborting due to previous error | ||
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For more information about this error, try `rustc --explain E0391`. |