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1.24 changelog cleanup

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R=devoncarew@google.com

Review-Url: https://codereview.chromium.org/2926213002 .
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Kevin Moore 2017-06-07 17:16:10 -07:00
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CHANGELOG.md
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@ -7,7 +7,7 @@
### Core library changes
* `dart:io`
* Unified backends for `SecureSocket`, `SecurityContext`, and
* Unified backends for `SecureSocket`, `SecurityContext`, and
`X509Certificate` to be consistent across all platforms. All
`SecureSocket`, `SecurityContext`, and `X509Certificate` properties and
methods are now supported on iOS and OSX.
@ -24,10 +24,12 @@
* 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 or setter 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;`.
* A new function-type syntax has been added to the language.
Intuitively, the type of a function can be constructed by textually replacing
the function's name with `Function` in its declaration. For instance, the
@ -35,11 +37,13 @@
wherever a type can be written. It is thus now possible to declare fields
containing functions without needing to write typedefs: `void Function() x;`.
The new function type has one restriction: it may not contain the old-style
function-type syntax for its parameters. The following is thus
illegal: `void Function(int f())`.
function-type syntax for its parameters. The following is thus illegal:
`void Function(int f())`.
`typedefs` have been updated to support this new syntax.
Examples:
```
```dart
typedef F = void Function(); // F is the name for a `void` callback.
int Function(int) f; // A field `f` that contains an int->int function.
@ -55,40 +59,39 @@
#### Strong Mode
* Removed ad hoc Future.then inference in favor of using FutureOr. Prior to
adding FutureOr to the language, the analyzer implented an ad hoc type inference
for Future.then (and overrides) treating it as if the onValue callback was typed
to return FutureOr for the purposes of inference. This ad hoc inference has
been removed now that FutureOr has been added.
* Removed ad hoc `Future.then` inference in favor of using `FutureOr`. Prior to
adding `FutureOr` to the language, the analyzer implented an ad hoc type
inference for `Future.then` (and overrides) treating it as if the onValue
callback was typed to return `FutureOr` for the purposes of inference.
This ad hoc inference has been removed now that `FutureOr` has been added.
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.
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 or setter declared using `=>` with return type `void` now allows the
returned expression to have any type.
* The new function-type syntax is also supported by strong mode.
* During static analysis, a function or setter declared using `=>` with return
type `void` now allows the returned expression to have any type.
### Core library changes
* `dart:async`, `dart:core`, `dart:io`
* Adding to a closed sink, including `IOSink`, is no longer not allowed. In
1.24, violations are only reported (on stdout or stderr), but a future
version of the Dart SDK will change this to throwing a `StateError`.
* `dart:convert`
* **BREAKING** Removed the deprecated `ChunkedConverter` class.
* JSON maps are now typed as `Map<String, dynamic>` instead of
`Map<dynamic, dynamic>`. A JSON-map is not a `HashMap` or `LinkedHashMap`
anymore (but just a `Map`).
* `dart:io`
* Added `Platform.localeName`, needed for accessing the locale on platforms
that don't store it in an environment variable.
* Added `ProcessInfo.currentRss` and `ProcessInfo.maxRss` for inspecting
the Dart VM process current and peak resident set size.
* Added 'RawSynchronousSocket', a basic synchronous socket implementation.
* `dart:convert`
* Removed deprecated `ChunkedConverter` class.
* JSON maps are now typed as `Map<String, dynamic>` instead of
`Map<dynamic, dynamic>`. A JSON-map is not a `HashMap` or `LinkedHashMap`
anymore (but just a `Map`).
* `dart:async`, `dart:io`, `dart:core`
* Adding to a closed sink, including `IOSink`, is not allowed anymore. In
1.24, violations are only reported (on stdout or stderr), but a future
version of the Dart SDK will change this to throwing a `StateError`.
* Added `RawSynchronousSocket`, a basic synchronous socket implementation.
### Dart VM
### Tool Changes