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make LocalHistoryRoute a proper super-mixin (#23382)

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Yegor 2018-10-23 13:43:02 -07:00 committed by GitHub
parent 1f72406b74
commit a3e0b0aee2
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2 changed files with 4 additions and 6 deletions
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8
packages/flutter/lib/src/widgets/routes.dart
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@ -306,16 +306,14 @@ class LocalHistoryEntry {
} }
} }
/// A route that can handle back navigations internally by popping a list. /// A mixin used by routes to handle back navigations internally by popping a list.
/// ///
/// When a [Navigator] is instructed to pop, the current route is given an /// When a [Navigator] is instructed to pop, the current route is given an
/// opportunity to handle the pop internally. A LocalHistoryRoute handles the /// opportunity to handle the pop internally. A `LocalHistoryRoute` handles the
/// pop internally if its list of local history entries is non-empty. Rather /// pop internally if its list of local history entries is non-empty. Rather
/// than being removed as the current route, the most recent [LocalHistoryEntry] /// than being removed as the current route, the most recent [LocalHistoryEntry]
/// is removed from the list and its [LocalHistoryEntry.onRemove] is called. /// is removed from the list and its [LocalHistoryEntry.onRemove] is called.
/// mixin LocalHistoryRoute<T> on Route<T> {
/// This class is typically used as a mixin.
abstract class LocalHistoryRoute<T> extends Route<T> {
List<LocalHistoryEntry> _localHistory; List<LocalHistoryEntry> _localHistory;
/// Adds a local history entry to this route. /// Adds a local history entry to this route.

2
packages/flutter/test/widgets/routes_test.dart
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@ -12,7 +12,7 @@ final List<String> results = <String>[];
Set<TestRoute> routes = HashSet<TestRoute>(); Set<TestRoute> routes = HashSet<TestRoute>();
class TestRoute extends LocalHistoryRoute<String> { class TestRoute extends Route<String> with LocalHistoryRoute<String> {
TestRoute(this.name); TestRoute(this.name);
final String name; final String name;