moved around files

user-mgmt_backend/node_modules/mysql2/lib/promise/connection.js

@@ -0,0 +1,222 @@
+'use strict';
+
+const EventEmitter = require('events').EventEmitter;
+const PromisePreparedStatementInfo = require('./prepared_statement_info.js');
+const makeDoneCb = require('./make_done_cb.js');
+const inheritEvents = require('./inherit_events.js');
+const BaseConnection = require('../base/connection.js');
+
+class PromiseConnection extends EventEmitter {
+  constructor(connection, promiseImpl) {
+    super();
+    this.connection = connection;
+    this.Promise = promiseImpl || Promise;
+    inheritEvents(connection, this, [
+      'error',
+      'drain',
+      'connect',
+      'end',
+      'enqueue',
+    ]);
+  }
+
+  release() {
+    this.connection.release();
+  }
+
+  query(query, params) {
+    const c = this.connection;
+    const localErr = new Error();
+    if (typeof params === 'function') {
+      throw new Error(
+        'Callback function is not available with promise clients.'
+      );
+    }
+    return new this.Promise((resolve, reject) => {
+      const done = makeDoneCb(resolve, reject, localErr);
+      if (params !== undefined) {
+        c.query(query, params, done);
+      } else {
+        c.query(query, done);
+      }
+    });
+  }
+
+  execute(query, params) {
+    const c = this.connection;
+    const localErr = new Error();
+    if (typeof params === 'function') {
+      throw new Error(
+        'Callback function is not available with promise clients.'
+      );
+    }
+    return new this.Promise((resolve, reject) => {
+      const done = makeDoneCb(resolve, reject, localErr);
+      if (params !== undefined) {
+        c.execute(query, params, done);
+      } else {
+        c.execute(query, done);
+      }
+    });
+  }
+
+  end() {
+    return new this.Promise((resolve) => {
+      this.connection.end(resolve);
+    });
+  }
+
+  beginTransaction() {
+    const c = this.connection;
+    const localErr = new Error();
+    return new this.Promise((resolve, reject) => {
+      const done = makeDoneCb(resolve, reject, localErr);
+      c.beginTransaction(done);
+    });
+  }
+
+  commit() {
+    const c = this.connection;
+    const localErr = new Error();
+    return new this.Promise((resolve, reject) => {
+      const done = makeDoneCb(resolve, reject, localErr);
+      c.commit(done);
+    });
+  }
+
+  rollback() {
+    const c = this.connection;
+    const localErr = new Error();
+    return new this.Promise((resolve, reject) => {
+      const done = makeDoneCb(resolve, reject, localErr);
+      c.rollback(done);
+    });
+  }
+
+  ping() {
+    const c = this.connection;
+    const localErr = new Error();
+    return new this.Promise((resolve, reject) => {
+      c.ping((err) => {
+        if (err) {
+          localErr.message = err.message;
+          localErr.code = err.code;
+          localErr.errno = err.errno;
+          localErr.sqlState = err.sqlState;
+          localErr.sqlMessage = err.sqlMessage;
+          reject(localErr);
+        } else {
+          resolve(true);
+        }
+      });
+    });
+  }
+
+  connect() {
+    const c = this.connection;
+    const localErr = new Error();
+    return new this.Promise((resolve, reject) => {
+      c.connect((err, param) => {
+        if (err) {
+          localErr.message = err.message;
+          localErr.code = err.code;
+          localErr.errno = err.errno;
+          localErr.sqlState = err.sqlState;
+          localErr.sqlMessage = err.sqlMessage;
+          reject(localErr);
+        } else {
+          resolve(param);
+        }
+      });
+    });
+  }
+
+  prepare(options) {
+    const c = this.connection;
+    const promiseImpl = this.Promise;
+    const localErr = new Error();
+    return new this.Promise((resolve, reject) => {
+      c.prepare(options, (err, statement) => {
+        if (err) {
+          localErr.message = err.message;
+          localErr.code = err.code;
+          localErr.errno = err.errno;
+          localErr.sqlState = err.sqlState;
+          localErr.sqlMessage = err.sqlMessage;
+          reject(localErr);
+        } else {
+          const wrappedStatement = new PromisePreparedStatementInfo(
+            statement,
+            promiseImpl
+          );
+          resolve(wrappedStatement);
+        }
+      });
+    });
+  }
+
+  changeUser(options) {
+    const c = this.connection;
+    const localErr = new Error();
+    return new this.Promise((resolve, reject) => {
+      c.changeUser(options, (err) => {
+        if (err) {
+          localErr.message = err.message;
+          localErr.code = err.code;
+          localErr.errno = err.errno;
+          localErr.sqlState = err.sqlState;
+          localErr.sqlMessage = err.sqlMessage;
+          reject(localErr);
+        } else {
+          resolve();
+        }
+      });
+    });
+  }
+
+  get config() {
+    return this.connection.config;
+  }
+
+  get threadId() {
+    return this.connection.threadId;
+  }
+}
+// patching PromiseConnection
+// create facade functions for prototype functions on "Connection" that are not yet
+// implemented with PromiseConnection
+
+// proxy synchronous functions only
+(function (functionsToWrap) {
+  for (let i = 0; functionsToWrap && i < functionsToWrap.length; i++) {
+    const func = functionsToWrap[i];
+
+    if (
+      typeof BaseConnection.prototype[func] === 'function' &&
+      PromiseConnection.prototype[func] === undefined
+    ) {
+      PromiseConnection.prototype[func] = (function factory(funcName) {
+        return function () {
+          return BaseConnection.prototype[funcName].apply(
+            this.connection,
+            arguments
+          );
+        };
+      })(func);
+    }
+  }
+})([
+  // synchronous functions
+  'close',
+  'createBinlogStream',
+  'destroy',
+  'escape',
+  'escapeId',
+  'format',
+  'pause',
+  'pipe',
+  'resume',
+  'unprepare',
+]);
+
+module.exports = PromiseConnection;