fix: "client already closed" error fires earlier

.nycrc

@@ -12,6 +12,7 @@
     "**/scripts",
     "**/protos",
     "**/test",
+    "**/*.d.ts",
     ".jsdoc.js",
     "**/.jsdoc.js",
     "karma.conf.js",

README.md

@@ -55,35 +55,36 @@ npm install @google-cloud/text-to-speech
 ### Using the client library
 
 ```javascript
-// Imports the Google Cloud client library
-const textToSpeech = require('@google-cloud/text-to-speech');
+  // Imports the Google Cloud client library
+  const textToSpeech = require('@google-cloud/text-to-speech');
 
-// Import other required libraries
-const fs = require('fs');
-const util = require('util');
-async function main() {
+  // Import other required libraries
+  const fs = require('fs');
+  const util = require('util');
   // Creates a client
   const client = new textToSpeech.TextToSpeechClient();
-
-  // The text to synthesize
-  const text = 'Hello, world!';
-
-  // Construct the request
-  const request = {
-    input: {text: text},
-    // Select the language and SSML Voice Gender (optional)
-    voice: {languageCode: 'en-US', ssmlGender: 'NEUTRAL'},
-    // Select the type of audio encoding
-    audioConfig: {audioEncoding: 'MP3'},
-  };
-
-  // Performs the Text-to-Speech request
-  const [response] = await client.synthesizeSpeech(request);
-  // Write the binary audio content to a local file
-  const writeFile = util.promisify(fs.writeFile);
-  await writeFile('output.mp3', response.audioContent, 'binary');
-  console.log('Audio content written to file: output.mp3');
-}
+  async function quickStart() {
+
+    // The text to synthesize
+    const text = 'hello, world!';
+
+    // Construct the request
+    const request = {
+      input: {text: text},
+      // Select the language and SSML voice gender (optional)
+      voice: {languageCode: 'en-US', ssmlGender: 'NEUTRAL'},
+      // select the type of audio encoding
+      audioConfig: {audioEncoding: 'MP3'},
+    };
+
+    // Performs the text-to-speech request
+    const [response] = await client.synthesizeSpeech(request);
+    // Write the binary audio content to a local file
+    const writeFile = util.promisify(fs.writeFile);
+    await writeFile('output.mp3', response.audioContent, 'binary');
+    console.log('Audio content written to file: output.mp3');
+  }
+  quickStart();
 
 ```
 

protos/protos.d.ts

@@ -1,4 +1,4 @@
-// Copyright 2019 Google LLC
+// Copyright 2020 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.

protos/protos.js

@@ -1,4 +1,4 @@
-// Copyright 2019 Google LLC
+// Copyright 2020 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.

src/v1/text_to_speech_client.ts

@@ -166,6 +166,9 @@ export class TextToSpeechClient {
     for (const methodName of textToSpeechStubMethods) {
       const innerCallPromise = this.textToSpeechStub.then(
         stub => (...args: Array<{}>) => {
+          if (this._terminated) {
+            return Promise.reject('The client has already been closed.');
+          }
           return stub[methodName].apply(stub, args);
         },
         (err: Error | null | undefined) => () => {
@@ -186,9 +189,6 @@ export class TextToSpeechClient {
         callOptions?: CallOptions,
         callback?: APICallback
       ) => {
-        if (this._terminated) {
-          return Promise.reject('The client has already been closed.');
-        }
         return apiCall(argument, callOptions, callback);
       };
     }

src/v1beta1/text_to_speech_client.ts

@@ -166,6 +166,9 @@ export class TextToSpeechClient {
     for (const methodName of textToSpeechStubMethods) {
       const innerCallPromise = this.textToSpeechStub.then(
         stub => (...args: Array<{}>) => {
+          if (this._terminated) {
+            return Promise.reject('The client has already been closed.');
+          }
           return stub[methodName].apply(stub, args);
         },
         (err: Error | null | undefined) => () => {
@@ -186,9 +189,6 @@ export class TextToSpeechClient {
         callOptions?: CallOptions,
         callback?: APICallback
       ) => {
-        if (this._terminated) {
-          return Promise.reject('The client has already been closed.');
-        }
         return apiCall(argument, callOptions, callback);
       };
     }