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Remove `virtual` structs from the reference

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Jakub Wieczorek 2014-10-11 19:39:33 +02:00 committed by Manish Goregaokar
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commit 179bd9327c
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@ -1328,23 +1328,6 @@ let c = [Cookie, Cookie, Cookie, Cookie];
The precise memory layout of a structure is not specified. One can specify a
particular layout using the [`repr` attribute](#ffi-attributes).
By using the `struct_inherit` feature gate, structures may use single
inheritance. A Structure may only inherit from a single other structure, called
the _super-struct_. The inheriting structure (sub-struct) acts as if all fields
in the super-struct were present in the sub-struct. Fields declared in a
sub-struct must not have the same name as any field in any (transitive)
super-struct. All fields (both declared and inherited) must be specified in any
initializers. Inheritance between structures does not give subtyping or
coercion. The super-struct and sub-struct must be defined in the same crate.
The super-struct must be declared using the `virtual` keyword. For example:
```{.ignore}
virtual struct Sup { x: int }
struct Sub : Sup { y: int }
let s = Sub {x: 10, y: 11};
let sx = s.x;
```
### Enumerations
An _enumeration_ is a simultaneous definition of a nominal [enumerated