Change ServiceClient constructor to take ServiceClientOptions instead of HttpPipeline

lib/msRest.ts

@@ -61,7 +61,7 @@ import uuidSpec from "./serialization/uuidSpec";
 import { WebResource, RequestPrepareOptions, HttpMethods, ParameterValue, RequestOptionsBase } from "./webResource";
 import { HttpOperationResponse } from "./httpOperationResponse";
 import { RestError } from "./restError";
-import { ServiceClient } from "./serviceClient";
+import { ServiceClient, ServiceClientOptions } from "./serviceClient";
 import { Constants } from "./util/constants";
 import { RequestPipeline, RequestFunction } from "./requestPipeline";
 import { LogFilter } from "./filters/logFilter";
@@ -107,11 +107,13 @@ export {
   SerializationOptions, streamSpec, stringSpec, timeSpanSpec, TypeSpec, unixTimeSpec, uuidSpec,
 
   // Legacy
-  BaseMapperType, CompositeMapper, DictionaryMapper, EnumMapper, Mapper, MapperConstraints, MapperType,
-  PolymorphicDiscriminator, SequenceMapper, UrlParameterValue, Serializer, serializeObject,
-  WebResource, RequestPrepareOptions, HttpMethods, ParameterValue, HttpOperationResponse, ServiceClient, Constants, RequestPipeline,
+  BaseMapperType, CompositeMapper, DictionaryMapper, EnumMapper, Mapper, MapperConstraints,
+  MapperType, PolymorphicDiscriminator, SequenceMapper, UrlParameterValue, Serializer,
+  serializeObject, WebResource, RequestPrepareOptions, HttpMethods, ParameterValue,
+  HttpOperationResponse, ServiceClient, ServiceClientOptions, Constants, RequestPipeline,
   ServiceClientCredentials, BaseFilter, LogFilter, ExponentialRetryPolicyFilter,
-  SystemErrorRetryPolicyFilter, SigningFilter, MsRestUserAgentFilter, stripResponse, delay, executePromisesSequentially,
-  generateUuid, isValidUuid, encodeUri, RestError, RequestOptionsBase, RequestFunction, ServiceCallback, promiseToCallback,
-  promiseToServiceCallback, isStream, dispatchRequest, RedirectFilter, applyMixins, isNode, stringifyXML, prepareXMLRootList
+  SystemErrorRetryPolicyFilter, SigningFilter, MsRestUserAgentFilter, stripResponse, delay,
+  executePromisesSequentially, generateUuid, isValidUuid, encodeUri, RestError, RequestOptionsBase,
+  RequestFunction, ServiceCallback, promiseToCallback, promiseToServiceCallback, isStream,
+  dispatchRequest, RedirectFilter, applyMixins, isNode, stringifyXML, prepareXMLRootList
 };

lib/serviceClient.ts

@@ -4,6 +4,17 @@ import { DefaultHttpPipelineOptions, HttpPipeline, createDefaultHttpPipeline } f
 import { HttpRequest } from "./httpRequest";
 import { HttpResponse } from "./httpResponse";
 
+/**
+ * Options that can be used to configure a ServiceClient.
+ */
+export interface ServiceClientOptions {
+  /**
+   * The HttpPipeline that this ServiceClient will use, or the options that will be used to create
+   * the default HttpPipeline.
+   */
+  httpPipeline?: HttpPipeline | DefaultHttpPipelineOptions;
+}
+
 /**
  * An abstract type that encapsulates a HttpPipeline for derived ServiceClient types.
  */
@@ -12,15 +23,14 @@ export abstract class ServiceClient {
 
   /**
    * The ServiceClient constructor
-   * @param httpPipeline The HttpPipeline that this ServiceClient will use, or the options that will
-   * be used to create the default HttpPipeline.
+   * @param httpPipeline
    */
-  constructor(httpPipeline?: HttpPipeline | DefaultHttpPipelineOptions) {
-    if (httpPipeline) {
-      if (httpPipeline instanceof HttpPipeline) {
-        this._httpPipeline = httpPipeline;
+  constructor(options?: ServiceClientOptions) {
+    if (options && options.httpPipeline) {
+      if (options.httpPipeline instanceof HttpPipeline) {
+        this._httpPipeline = options.httpPipeline;
       } else {
-        this._httpPipeline = createDefaultHttpPipeline(httpPipeline);
+        this._httpPipeline = createDefaultHttpPipeline(options.httpPipeline);
       }
     } else {
       this._httpPipeline = createDefaultHttpPipeline();

test/shared/data/TestClient/lib/testClient.ts

@@ -39,8 +39,8 @@ class TestClient extends msRest.ServiceClient {
   acceptLanguage?: string;
   models?: any;
   serializer: msRest.Serializer;
-  constructor(baseUri: string, httpPipeline?: msRest.HttpPipeline | msRest.DefaultHttpPipelineOptions) {
-    super(httpPipeline);
+  constructor(baseUri: string, options?: msRest.ServiceClientOptions) {
+    super(options);
 
     this.baseUri = baseUri;
     if (!this.baseUri) {