directive_resolver.js
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/**
* @license
* Copyright Google Inc. 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
*/
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);
};
import { Component, Directive, HostBinding, HostListener, Input, Output, Query, resolveForwardRef } from '@angular/core';
import { ListWrapper, StringMapWrapper } from './facade/collection';
import { stringify } from './facade/lang';
import { CompilerInjectable } from './injectable';
import { ReflectorReader, reflector } from './private_import_core';
import { splitAtColon } from './util';
export var DirectiveResolver = (function () {
/**
* @param {?=} _reflector
*/
function DirectiveResolver(_reflector) {
if (_reflector === void 0) { _reflector = reflector; }
this._reflector = _reflector;
}
/**
* @param {?} type
* @return {?}
*/
DirectiveResolver.prototype.isDirective = function (type) {
var /** @type {?} */ typeMetadata = this._reflector.annotations(resolveForwardRef(type));
return typeMetadata && typeMetadata.some(isDirectiveMetadata);
};
/**
* Return {\@link Directive} for a given `Type`.
* @param {?} type
* @param {?=} throwIfNotFound
* @return {?}
*/
DirectiveResolver.prototype.resolve = function (type, throwIfNotFound) {
if (throwIfNotFound === void 0) { throwIfNotFound = true; }
var /** @type {?} */ typeMetadata = this._reflector.annotations(resolveForwardRef(type));
if (typeMetadata) {
var /** @type {?} */ metadata = ListWrapper.findLast(typeMetadata, isDirectiveMetadata);
if (metadata) {
var /** @type {?} */ propertyMetadata = this._reflector.propMetadata(type);
return this._mergeWithPropertyMetadata(metadata, propertyMetadata, type);
}
}
if (throwIfNotFound) {
throw new Error("No Directive annotation found on " + stringify(type));
}
return null;
};
/**
* @param {?} dm
* @param {?} propertyMetadata
* @param {?} directiveType
* @return {?}
*/
DirectiveResolver.prototype._mergeWithPropertyMetadata = function (dm, propertyMetadata, directiveType) {
var /** @type {?} */ inputs = [];
var /** @type {?} */ outputs = [];
var /** @type {?} */ host = {};
var /** @type {?} */ queries = {};
Object.keys(propertyMetadata).forEach(function (propName) {
var /** @type {?} */ input = ListWrapper.findLast(propertyMetadata[propName], function (a) { return a instanceof Input; });
if (input) {
if (input.bindingPropertyName) {
inputs.push(propName + ": " + input.bindingPropertyName);
}
else {
inputs.push(propName);
}
}
var /** @type {?} */ output = ListWrapper.findLast(propertyMetadata[propName], function (a) { return a instanceof Output; });
if (output) {
if (output.bindingPropertyName) {
outputs.push(propName + ": " + output.bindingPropertyName);
}
else {
outputs.push(propName);
}
}
var /** @type {?} */ hostBindings = propertyMetadata[propName].filter(function (a) { return a && a instanceof HostBinding; });
hostBindings.forEach(function (hostBinding) {
if (hostBinding.hostPropertyName) {
var /** @type {?} */ startWith = hostBinding.hostPropertyName[0];
if (startWith === '(') {
throw new Error("@HostBinding can not bind to events. Use @HostListener instead.");
}
else if (startWith === '[') {
throw new Error("@HostBinding parameter should be a property name, 'class.<name>', or 'attr.<name>'.");
}
host[("[" + hostBinding.hostPropertyName + "]")] = propName;
}
else {
host[("[" + propName + "]")] = propName;
}
});
var /** @type {?} */ hostListeners = propertyMetadata[propName].filter(function (a) { return a && a instanceof HostListener; });
hostListeners.forEach(function (hostListener) {
var /** @type {?} */ args = hostListener.args || [];
host[("(" + hostListener.eventName + ")")] = propName + "(" + args.join(',') + ")";
});
var /** @type {?} */ query = ListWrapper.findLast(propertyMetadata[propName], function (a) { return a instanceof Query; });
if (query) {
queries[propName] = query;
}
});
return this._merge(dm, inputs, outputs, host, queries, directiveType);
};
/**
* @param {?} def
* @return {?}
*/
DirectiveResolver.prototype._extractPublicName = function (def) { return splitAtColon(def, [null, def])[1].trim(); };
/**
* @param {?} bindings
* @return {?}
*/
DirectiveResolver.prototype._dedupeBindings = function (bindings) {
var /** @type {?} */ names = new Set();
var /** @type {?} */ reversedResult = [];
// go last to first to allow later entries to overwrite previous entries
for (var /** @type {?} */ i = bindings.length - 1; i >= 0; i--) {
var /** @type {?} */ binding = bindings[i];
var /** @type {?} */ name_1 = this._extractPublicName(binding);
if (!names.has(name_1)) {
names.add(name_1);
reversedResult.push(binding);
}
}
return reversedResult.reverse();
};
/**
* @param {?} directive
* @param {?} inputs
* @param {?} outputs
* @param {?} host
* @param {?} queries
* @param {?} directiveType
* @return {?}
*/
DirectiveResolver.prototype._merge = function (directive, inputs, outputs, host, queries, directiveType) {
var /** @type {?} */ mergedInputs = this._dedupeBindings(directive.inputs ? directive.inputs.concat(inputs) : inputs);
var /** @type {?} */ mergedOutputs = this._dedupeBindings(directive.outputs ? directive.outputs.concat(outputs) : outputs);
var /** @type {?} */ mergedHost = directive.host ? StringMapWrapper.merge(directive.host, host) : host;
var /** @type {?} */ mergedQueries = directive.queries ? StringMapWrapper.merge(directive.queries, queries) : queries;
if (directive instanceof Component) {
return new Component({
selector: directive.selector,
inputs: mergedInputs,
outputs: mergedOutputs,
host: mergedHost,
exportAs: directive.exportAs,
moduleId: directive.moduleId,
queries: mergedQueries,
changeDetection: directive.changeDetection,
providers: directive.providers,
viewProviders: directive.viewProviders,
entryComponents: directive.entryComponents,
template: directive.template,
templateUrl: directive.templateUrl,
styles: directive.styles,
styleUrls: directive.styleUrls,
encapsulation: directive.encapsulation,
animations: directive.animations,
interpolation: directive.interpolation
});
}
else {
return new Directive({
selector: directive.selector,
inputs: mergedInputs,
outputs: mergedOutputs,
host: mergedHost,
exportAs: directive.exportAs,
queries: mergedQueries,
providers: directive.providers
});
}
};
DirectiveResolver = __decorate([
CompilerInjectable(),
__metadata('design:paramtypes', [ReflectorReader])
], DirectiveResolver);
return DirectiveResolver;
}());
function DirectiveResolver_tsickle_Closure_declarations() {
/** @type {?} */
DirectiveResolver.prototype._reflector;
}
/**
* @param {?} type
* @return {?}
*/
function isDirectiveMetadata(type) {
return type instanceof Directive;
}
//# sourceMappingURL=directive_resolver.js.map