angular2
Version:
Angular 2 - a web framework for modern web apps
57 lines • 6.15 kB
JavaScript
;"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var di_1 = require('angular2/src/core/di');
var lang_1 = require('angular2/src/facade/lang');
var exceptions_1 = require('angular2/src/facade/exceptions');
var metadata_1 = require('angular2/src/core/metadata');
var reflector_reader_1 = require('angular2/src/core/reflection/reflector_reader');
var reflection_1 = require('angular2/src/core/reflection/reflection');
function _isPipeMetadata(type) {
return type instanceof metadata_1.PipeMetadata;
}
/**
* Resolve a `Type` for {@link PipeMetadata}.
*
* This interface can be overridden by the application developer to create custom behavior.
*
* See {@link Compiler}
*/
var PipeResolver = (function () {
function PipeResolver(_reflector) {
if (lang_1.isPresent(_reflector)) {
this._reflector = _reflector;
}
else {
this._reflector = reflection_1.reflector;
}
}
/**
* Return {@link PipeMetadata} for a given `Type`.
*/
PipeResolver.prototype.resolve = function (type) {
var metas = this._reflector.annotations(di_1.resolveForwardRef(type));
if (lang_1.isPresent(metas)) {
var annotation = metas.find(_isPipeMetadata);
if (lang_1.isPresent(annotation)) {
return annotation;
}
}
throw new exceptions_1.BaseException("No Pipe decorator found on " + lang_1.stringify(type));
};
PipeResolver = __decorate([
di_1.Injectable(),
__metadata('design:paramtypes', [reflector_reader_1.ReflectorReader])
], PipeResolver);
return PipeResolver;
}());
exports.PipeResolver = PipeResolver;
exports.CODEGEN_PIPE_RESOLVER = new PipeResolver(reflection_1.reflector);
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