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feat(transformers): added support for lifecycle events

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This commit is contained in:
vsavkin
2015-05-28 17:28:53 -07:00
parent 6f0631c978
commit f19970a481
6 changed files with 95 additions and 5 deletions
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28
modules/angular2/src/transform/common/directive_metadata_reader.dart
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@ -60,7 +60,13 @@ class _DirectiveMetadataVisitor extends Object
hostListeners: {},
hostProperties: {},
hostAttributes: {},
readAttributes: []);
readAttributes: [],
callOnDestroy: false,
callOnChange: false,
callOnCheck: false,
callOnInit: false,
callOnAllChangesDone: false
);
}
@override
@ -126,6 +132,10 @@ class _DirectiveMetadataVisitor extends Object
break;
case 'hostListeners':
_populateHostListeners(node.expression);
break;
case 'lifecycle':
_populateLifecycle(node.expression);
break;
}
return null;
}
@ -214,4 +224,20 @@ class _DirectiveMetadataVisitor extends Object
_populateMap(
hostAttributeValue, meta.hostAttributes, 'Directive#hostAttributes');
}
void _populateLifecycle(Expression lifecycleValue) {
_checkMeta();
if (lifecycleValue is! ListLiteral) {
throw new FormatException(
'Angular 2 expects a List but could not understand the value for lifecycle. '
'$lifecycleValue');
}
ListLiteral l = lifecycleValue;
var lifecycleEvents = l.elements.map((s) => s.toSource());
meta.callOnDestroy = lifecycleEvents.contains("onDestroy");
meta.callOnChange = lifecycleEvents.contains("onChange");
meta.callOnCheck = lifecycleEvents.contains("onCheck");
meta.callOnInit = lifecycleEvents.contains("onInit");
meta.callOnAllChangesDone = lifecycleEvents.contains("onAllChangesDone");
}
}