diff options
Diffstat (limited to 'internal/typeparams/normalize.go')
| -rw-r--r-- | internal/typeparams/normalize.go | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/internal/typeparams/normalize.go b/internal/typeparams/normalize.go index 090f142a5..9c631b651 100644 --- a/internal/typeparams/normalize.go +++ b/internal/typeparams/normalize.go @@ -24,20 +24,22 @@ var ErrEmptyTypeSet = errors.New("empty type set") // Structural type restrictions of a type parameter are created via // non-interface types embedded in its constraint interface (directly, or via a // chain of interface embeddings). For example, in the declaration -// type T[P interface{~int; m()}] int +// +// type T[P interface{~int; m()}] int +// // the structural restriction of the type parameter P is ~int. // // With interface embedding and unions, the specification of structural type // restrictions may be arbitrarily complex. For example, consider the // following: // -// type A interface{ ~string|~[]byte } +// type A interface{ ~string|~[]byte } // -// type B interface{ int|string } +// type B interface{ int|string } // -// type C interface { ~string|~int } +// type C interface { ~string|~int } // -// type T[P interface{ A|B; C }] int +// type T[P interface{ A|B; C }] int // // In this example, the structural type restriction of P is ~string|int: A|B // expands to ~string|~[]byte|int|string, which reduces to ~string|~[]byte|int, |