Rado Kirov
457c15cd6c
In 'angular2/di' the symbol: - Inject is a decorator - InjectAnnotation is an annotation Internally one an get a hold of annotations without *Annotations appened (to make ts2dart work without workarounds) by importing from 'angular2/src/di/annotations_impl' instead of 'angular2/di'. This is needed only for users that transpile through TS and through ts2dart.
43 lines
1.3 KiB
JavaScript
43 lines
1.3 KiB
JavaScript
import {Injectable} from 'angular2/src/di/annotations_impl';
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import {isPresent, print} from 'angular2/src/facade/lang';
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import {ListWrapper, isListLikeIterable} from 'angular2/src/facade/collection';
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import {DOM} from 'angular2/src/dom/dom_adapter';
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/**
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* Provides a hook for centralized exception handling.
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*
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* The default implementation of `ExceptionHandler` prints error messages to the `Console`. To intercept error handling,
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* write a custom exception handler that replaces this default as appropriate for your app.
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*
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* # Example
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*
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* ```javascript
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* @Component({
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* selector: 'my-app',
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* injectables: [
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* bind(ExceptionHandler).toClass(MyExceptionHandler)
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* ]
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* })
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* @View(...)
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* class MyApp { ... }
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*
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*
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* class MyExceptionHandler implements ExceptionHandler {
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* call(error, stackTrace = null, reason = null) {
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* // do something with the exception
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* }
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* }
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*
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* ```
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*
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* @exportedAs angular2/core
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*/
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@Injectable()
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export class ExceptionHandler {
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call(error, stackTrace = null, reason = null) {
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var longStackTrace = isListLikeIterable(stackTrace) ? ListWrapper.join(stackTrace, "\n\n") : stackTrace;
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var reasonStr = isPresent(reason) ? `\n${reason}` : '';
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DOM.logError(`${error}${reasonStr}\nSTACKTRACE:\n${longStackTrace}`);
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}
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}
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