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Announced #28939 (void f() => e allows an e of any type) in changelog

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Addresses sdk issue #29646.

R=floitsch@google.com

Review-Url: https://codereview.chromium.org/2887253003 .
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Erik Ernst 2017-05-18 17:12:45 +02:00
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CHANGELOG.md
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@ -4,6 +4,9 @@
* During a dynamic type check, `void` is not required to be `null` anymore.
In practice, this makes overriding `void` functions with non-`void` functions
safer.
* During static analysis, a function declared using `=>` with return type `void`
now allows the returned expression to have any type. For example, assuming the
declaration `int x;`, it is now type correct to have `void f() => ++x;`.
#### Strong Mode
@ -17,6 +20,9 @@ Packages that implement `Future` must either type the `onValue` parameter to
`.then` as returning `FutureOr<T>`, or else must leave the type of the parameter
entirely to allow inference to fill in the type.
* The following is also a change in strong mode: During static analysis, a
function declared using `=>` with return type `void` now allows the returned
expression to have any type.
### Core library changes