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Document the index used in AggregateKind::Adt

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Manish Goregaokar 2018-01-29 14:11:32 +05:30
parent c6140970f5
commit 48a7a1f5e9
1 changed files with 2 additions and 2 deletions
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4
src/librustc/mir/mod.rs
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@ -1515,8 +1515,8 @@ pub enum AggregateKind<'tcx> {
Array(Ty<'tcx>),
Tuple,
/// The second field is variant number (discriminant), it's equal
/// to 0 for struct and union expressions. The fourth field is
/// The second field is the variant index. It's equal to 0 for struct
/// and union expressions. The fourth field is
/// active field number and is present only for union expressions
/// -- e.g. for a union expression `SomeUnion { c: .. }`, the
/// active field index would identity the field `c`