@angular/core
Version:
Angular - the core framework
77 lines • 9.77 kB
JavaScript
/**
* @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
*/
import { getCompilerFacade } from '../../compiler/compiler_facade';
import { ReflectionCapabilities } from '../../reflection/reflection_capabilities';
import { Attribute, Host, Inject, Optional, Self, SkipSelf } from '../metadata';
var _reflect = null;
export function getReflect() {
return (_reflect = _reflect || new ReflectionCapabilities());
}
export function reflectDependencies(type) {
return convertDependencies(getReflect().parameters(type));
}
export function convertDependencies(deps) {
var compiler = getCompilerFacade();
return deps.map(function (dep) { return reflectDependency(compiler, dep); });
}
function reflectDependency(compiler, dep) {
var meta = {
token: null,
host: false,
optional: false,
resolved: compiler.R3ResolvedDependencyType.Token,
self: false,
skipSelf: false,
};
function setTokenAndResolvedType(token) {
meta.resolved = compiler.R3ResolvedDependencyType.Token;
meta.token = token;
}
if (Array.isArray(dep)) {
if (dep.length === 0) {
throw new Error('Dependency array must have arguments.');
}
for (var j = 0; j < dep.length; j++) {
var param = dep[j];
if (param === undefined) {
// param may be undefined if type of dep is not set by ngtsc
continue;
}
else if (param instanceof Optional || param.__proto__.ngMetadataName === 'Optional') {
meta.optional = true;
}
else if (param instanceof SkipSelf || param.__proto__.ngMetadataName === 'SkipSelf') {
meta.skipSelf = true;
}
else if (param instanceof Self || param.__proto__.ngMetadataName === 'Self') {
meta.self = true;
}
else if (param instanceof Host || param.__proto__.ngMetadataName === 'Host') {
meta.host = true;
}
else if (param instanceof Inject) {
meta.token = param.token;
}
else if (param instanceof Attribute) {
if (param.attributeName === undefined) {
throw new Error("Attribute name must be defined.");
}
meta.token = param.attributeName;
meta.resolved = compiler.R3ResolvedDependencyType.Attribute;
}
else {
setTokenAndResolvedType(param);
}
}
}
else {
setTokenAndResolvedType(dep);
}
return meta;
}
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