a8bdb693b9
By default, pipes are pure. This means that an instance of a pipe will be reused and the pipe will be called only when its arguments change.
BREAKING CHANGE
Before:
@Pipe({name: 'date'}) class DatePipe {} defines an impure pipe.
After:
@Pipe({name: 'date'}) class DatePipe {} defines a pure pipe.
@Pipe({name: 'date', pure: false}) class DatePipe {} defines an impure pipe.
Closes #3966
128 lines
3.2 KiB
Dart
128 lines
3.2 KiB
Dart
library angular2.src.core.metadata;
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import "package:angular2/src/core/facade/collection.dart" show List;
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import 'package:angular2/src/core/change_detection/change_detection.dart';
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import "./metadata/di.dart";
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import "./metadata/directives.dart";
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import "./metadata/view.dart";
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export "./metadata/di.dart";
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export "./metadata/directives.dart";
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export "./metadata/view.dart";
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/**
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* See: [DirectiveMetadata] for docs.
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*/
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class Directive extends DirectiveMetadata {
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const Directive({String selector, List<String> properties,
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List<String> events, Map<String, String> host,
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List bindings, String exportAs,
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bool compileChildren: true})
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: super(
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selector: selector,
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properties: properties,
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events: events,
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host: host,
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bindings: bindings,
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exportAs: exportAs,
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compileChildren: compileChildren);
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}
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/**
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* See: [ComponentMetadata] for docs.
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*/
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class Component extends ComponentMetadata {
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const Component({String selector, List<String> properties,
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List<String> events, Map<String, String> host,
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List bindings, String exportAs,
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bool compileChildren, List viewBindings, ChangeDetectionStrategy changeDetection})
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: super(
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selector: selector,
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properties: properties,
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events: events,
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host: host,
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bindings: bindings,
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exportAs: exportAs,
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compileChildren: compileChildren,
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viewBindings: viewBindings,
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changeDetection: changeDetection);
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}
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/**
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* See: [ViewMetadata] for docs.
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*/
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class View extends ViewMetadata {
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const View({String templateUrl, String template, dynamic directives,
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dynamic pipes, ViewEncapsulation encapsulation, List<String> styles,
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List<String> styleUrls})
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: super(
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templateUrl: templateUrl,
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template: template,
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directives: directives,
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pipes: pipes,
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encapsulation: encapsulation,
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styles: styles,
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styleUrls: styleUrls);
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}
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/**
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* See: [PipeMetadata] for docs.
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*/
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class Pipe extends PipeMetadata {
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const Pipe({name, pure}) : super(name: name, pure: pure);
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}
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/**
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* See: [AttributeMetadata] for docs.
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*/
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class Attribute extends AttributeMetadata {
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const Attribute(String attributeName) : super(attributeName);
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}
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/**
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* See: [QueryMetadata] for docs.
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*/
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class Query extends QueryMetadata {
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const Query(dynamic /*Type | string*/ selector, {bool descendants: false})
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: super(selector, descendants: descendants);
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}
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/**
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* See: [ViewQueryMetadata] for docs.
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*/
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class ViewQuery extends ViewQueryMetadata {
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const ViewQuery(dynamic /*Type | string*/ selector)
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: super(selector, descendants: true);
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}
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/**
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* See: [PropertyMetadata] for docs.
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*/
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class Property extends PropertyMetadata {
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const Property([String bindingPropertyName])
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: super(bindingPropertyName);
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}
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/**
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* See: [EventMetadata] for docs.
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*/
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class Event extends EventMetadata {
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const Event([String bindingPropertyName])
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: super(bindingPropertyName);
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}
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/**
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* See: [HostBindingMetadata] for docs.
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*/
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class HostBinding extends HostBindingMetadata {
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const HostBinding([String hostPropertyName])
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: super(hostPropertyName);
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}
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/**
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* See: [HostListenerMetadata] for docs.
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*/
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class HostListener extends HostListenerMetadata {
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const HostListener(String eventName, [List<String> args])
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: super(eventName, args);
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} |