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net: refactor net module to module.exports #11698

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net: refactor net module to module.exports #11698

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66 changes: 34 additions & 32 deletions lib/net.js
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Original file line number Diff line number Diff line change
Expand Up @@ -62,9 +62,9 @@ function isPipeName(s) {
return typeof s === 'string' && toNumber(s) === false;
}

exports.createServer = function(options, connectionListener) {
function createServer(options, connectionListener) {
return new Server(options, connectionListener);
};
}


// Target API:
Expand All @@ -79,7 +79,7 @@ exports.createServer = function(options, connectionListener) {
// connect(port, [host], [cb])
// connect(path, [cb]);
//
exports.connect = exports.createConnection = function() {
function connect() {
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What if we just called this createConnection() and added the connect: createConnection alias in the export list. This way we won't have to rename connect to internalConnect everywhere.

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@claudiorodriguez claudiorodriguez Mar 5, 2017 •
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You'd still have a "connect" in the exports (i.e. part of the module's API) and a function named "connect" in the code that is not the same as the export, which is still IMHO confusing. Also there's no change in the public API, no need to rename anything outside of this module. Also references inside the module to a "connect" function that is not the same as the export are confusing.
internalConnect might not be the best name though, I admit.

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internalConnect does make grepping easier.

const args = new Array(arguments.length);
for (var i = 0; i < arguments.length; i++)
args[i] = arguments[i];
Expand All @@ -95,7 +95,7 @@ exports.connect = exports.createConnection = function() {
}

return Socket.prototype.connect.call(socket, options, cb);
};
}


// Returns an array [options, cb], where options is an object,
Expand Down Expand Up @@ -135,7 +135,6 @@ function normalizeArgs(args) {
else
return [options, cb];
}
exports._normalizeArgs = normalizeArgs;


// called when creating new Socket, or when re-using a closed Socket
Expand Down Expand Up @@ -333,9 +332,6 @@ function writeAfterFIN(chunk, encoding, cb) {
}
}

exports.Socket = Socket;
exports.Stream = Socket; // Legacy naming.

Socket.prototype.read = function(n) {
if (n === 0)
return stream.Readable.prototype.read.call(this, n);
Expand Down Expand Up @@ -850,7 +846,8 @@ function afterWrite(status, handle, req, err) {
}


function connect(self, address, port, addressType, localAddress, localPort) {
function internalConnect(
self, address, port, addressType, localAddress, localPort) {
// TODO return promise from Socket.prototype.connect which
// wraps _connectReq.

Expand Down Expand Up @@ -964,7 +961,7 @@ Socket.prototype.connect = function() {
this.writable = true;

if (pipe) {
connect(this, options.path);
internalConnect(this, options.path);
} else {
lookupAndConnect(this, options);
}
Expand All @@ -979,7 +976,7 @@ function lookupAndConnect(self, options) {
var localAddress = options.localAddress;
var localPort = options.localPort;

if (localAddress && !exports.isIP(localAddress))
if (localAddress && !cares.isIP(localAddress))
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Making isIP available as a variable would help simplify here and in module.exports.

throw new TypeError('"localAddress" option must be a valid IP: ' +
localAddress);

Expand All @@ -996,11 +993,11 @@ function lookupAndConnect(self, options) {
port |= 0;

// If host is an IP, skip performing a lookup
var addressType = exports.isIP(host);
var addressType = cares.isIP(host);
if (addressType) {
process.nextTick(function() {
if (self.connecting)
connect(self, host, port, addressType, localAddress, localPort);
internalConnect(self, host, port, addressType, localAddress, localPort);
});
return;
}
Expand Down Expand Up @@ -1040,12 +1037,12 @@ function lookupAndConnect(self, options) {
process.nextTick(connectErrorNT, self, err);
} else {
self._unrefTimer();
connect(self,
ip,
port,
addressType,
localAddress,
localPort);
internalConnect(self,
ip,
port,
addressType,
localAddress,
localPort);
}
});
}
Expand Down Expand Up @@ -1177,7 +1174,6 @@ function Server(options, connectionListener) {
this.pauseOnConnect = !!options.pauseOnConnect;
}
util.inherits(Server, EventEmitter);
exports.Server = Server;


function toNumber(x) { return (x = Number(x)) >= 0 ? x : false; }
Expand Down Expand Up @@ -1244,7 +1240,6 @@ function createServerHandle(address, port, addressType, fd) {

return handle;
}
exports._createServerHandle = createServerHandle;


Server.prototype._listen2 = function(address, port, addressType, backlog, fd) {
Expand Down Expand Up @@ -1618,20 +1613,12 @@ Server.prototype.unref = function() {
return this;
};


exports.isIP = cares.isIP;


exports.isIPv4 = cares.isIPv4;


exports.isIPv6 = cares.isIPv6;

var _setSimultaneousAccepts;

if (process.platform === 'win32') {
var simultaneousAccepts;

exports._setSimultaneousAccepts = function(handle) {
_setSimultaneousAccepts = function(handle) {
if (handle === undefined) {
return;
}
Expand All @@ -1647,5 +1634,20 @@ if (process.platform === 'win32') {
}
};
} else {
exports._setSimultaneousAccepts = function(handle) {};
_setSimultaneousAccepts = function(handle) {};
}

module.exports = {
_createServerHandle: createServerHandle,
_normalizeArgs: normalizeArgs,
_setSimultaneousAccepts,
connect,
createConnection: connect,
createServer,
isIP: cares.isIP,
isIPv4: cares.isIPv4,
isIPv6: cares.isIPv6,
Server,
Socket,
Stream: Socket, // Legacy naming
};