@angular/compiler
Version:
Angular - the compiler library
59 lines • 5.51 kB
JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
(function (factory) {
if (typeof module === "object" && typeof module.exports === "object") {
var v = factory(require, exports);
if (v !== undefined) module.exports = v;
}
else if (typeof define === "function" && define.amd) {
define("@angular/compiler/src/pipe_resolver", ["require", "exports", "@angular/compiler/src/core", "@angular/compiler/src/directive_resolver", "@angular/compiler/src/util"], factory);
}
})(function (require, exports) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.PipeResolver = void 0;
var core_1 = require("@angular/compiler/src/core");
var directive_resolver_1 = require("@angular/compiler/src/directive_resolver");
var util_1 = require("@angular/compiler/src/util");
/**
* Resolve a `Type` for {@link Pipe}.
*
* This interface can be overridden by the application developer to create custom behavior.
*
* See {@link Compiler}
*/
var PipeResolver = /** @class */ (function () {
function PipeResolver(_reflector) {
this._reflector = _reflector;
}
PipeResolver.prototype.isPipe = function (type) {
var typeMetadata = this._reflector.annotations(util_1.resolveForwardRef(type));
return typeMetadata && typeMetadata.some(core_1.createPipe.isTypeOf);
};
/**
* Return {@link Pipe} for a given `Type`.
*/
PipeResolver.prototype.resolve = function (type, throwIfNotFound) {
if (throwIfNotFound === void 0) { throwIfNotFound = true; }
var metas = this._reflector.annotations(util_1.resolveForwardRef(type));
if (metas) {
var annotation = directive_resolver_1.findLast(metas, core_1.createPipe.isTypeOf);
if (annotation) {
return annotation;
}
}
if (throwIfNotFound) {
throw new Error("No Pipe decorator found on " + util_1.stringify(type));
}
return null;
};
return PipeResolver;
}());
exports.PipeResolver = PipeResolver;
});
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