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| 1 part of angular.core; | |
| 2 | |
| 3 abstract class AnnotationMap<K> { | |
| 4 final Map<K, Type> _map = {}; | |
| 5 | |
| 6 AnnotationMap(Injector injector, MetadataExtractor extractMetadata) { | |
| 7 injector.types.forEach((type) { | |
| 8 var meta = extractMetadata(type) | |
| 9 .where((annotation) => annotation is K) | |
| 10 .forEach((annotation) { | |
| 11 _map[annotation] = type; | |
| 12 }); | |
| 13 }); | |
| 14 } | |
| 15 | |
| 16 Type operator[](K annotation) { | |
| 17 var value = _map[annotation]; | |
| 18 if (value == null) throw 'No $annotation found!'; | |
| 19 return value; | |
| 20 } | |
| 21 | |
| 22 forEach(fn(K, Type)) => _map.forEach(fn); | |
| 23 | |
| 24 List<K> annotationsFor(Type type) { | |
| 25 var res = <K>[]; | |
| 26 forEach((ann, annType) { | |
| 27 if (annType == type) res.add(ann); | |
| 28 }); | |
| 29 return res; | |
| 30 } | |
| 31 } | |
| 32 | |
| 33 abstract class AnnotationsMap<K> { | |
| 34 final Map<K, List<Type>> map = {}; | |
| 35 | |
| 36 AnnotationsMap(Injector injector, MetadataExtractor extractMetadata) { | |
| 37 injector.types.forEach((type) { | |
| 38 var meta = extractMetadata(type) | |
| 39 .where((annotation) => annotation is K) | |
| 40 .forEach((annotation) { | |
| 41 map.putIfAbsent(annotation, () => []).add(type); | |
| 42 }); | |
| 43 }); | |
| 44 } | |
| 45 | |
| 46 List operator[](K annotation) { | |
| 47 var value = map[annotation]; | |
| 48 if (value == null) throw 'No $annotation found!'; | |
| 49 return value; | |
| 50 } | |
| 51 | |
| 52 forEach(fn(K, Type)) { | |
| 53 map.forEach((annotation, types) { | |
| 54 types.forEach((type) { | |
| 55 fn(annotation, type); | |
| 56 }); | |
| 57 }); | |
| 58 } | |
| 59 | |
| 60 List<K> annotationsFor(Type type) { | |
| 61 var res = <K>[]; | |
| 62 forEach((ann, annType) { | |
| 63 if (annType == type) res.add(ann); | |
| 64 }); | |
| 65 return res; | |
| 66 } | |
| 67 } | |
| 68 | |
| 69 | |
| 70 @NgInjectableService() | |
| 71 class MetadataExtractor { | |
| 72 Iterable call(Type type) { | |
| 73 if (reflectType(type) is TypedefMirror) return []; | |
| 74 var metadata = reflectClass(type).metadata; | |
| 75 if (metadata == null) return []; | |
| 76 return metadata.map((InstanceMirror im) => im.reflectee); | |
| 77 } | |
| 78 } | |
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