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Update existential-types.md

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Oliver Schneider 2018-08-01 18:35:17 +02:00 committed by Who? Me?!
parent 9efa9f1346
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@ -7,7 +7,7 @@ type.
In the language they are expressed via In the language they are expressed via
```rust ```
existential type Foo: Bar; existential type Foo: Bar;
``` ```
@ -17,7 +17,7 @@ the `Bar` trait's interface.
Since there needs to be a concrete background type, you can currently Since there needs to be a concrete background type, you can currently
express that type by using the existential type in a "defining use site". express that type by using the existential type in a "defining use site".
```rust ```
struct Struct; struct Struct;
impl Bar for Struct { /* stuff */ } impl Bar for Struct { /* stuff */ }
fn foo() -> Foo { fn foo() -> Foo {