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tty: refactor to es6

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Backport-PR-URL: https://github.com/nodejs/node/pull/19230
PR-URL: https://github.com/nodejs/node/pull/17615
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
This commit is contained in:
Ruben Bridgewater 2018-01-17 19:38:51 +01:00 committed by Myles Borins
parent ead727c274
commit 74f0d1aa60
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1 changed files with 8 additions and 14 deletions
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22
lib/tty.js
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@ -39,7 +39,6 @@ function isatty(fd) {
return Number.isInteger(fd) && fd >= 0 && isTTY(fd);
}
function ReadStream(fd, options) {
if (!(this instanceof ReadStream))
return new ReadStream(fd, options);
@ -66,7 +65,6 @@ ReadStream.prototype.setRawMode = function(flag) {
this.isRaw = flag;
};
function WriteStream(fd) {
if (!(this instanceof WriteStream))
return new WriteStream(fd);
@ -86,8 +84,8 @@ function WriteStream(fd) {
// Ref: https://github.com/nodejs/node/pull/1771#issuecomment-119351671
this._handle.setBlocking(true);
var winSize = new Array(2);
var err = this._handle.getWindowSize(winSize);
const winSize = new Array(2);
const err = this._handle.getWindowSize(winSize);
if (!err) {
this.columns = winSize[0];
this.rows = winSize[1];
@ -95,7 +93,6 @@ function WriteStream(fd) {
}
inherits(WriteStream, net.Socket);
WriteStream.prototype.isTTY = true;
WriteStream.prototype.getColorDepth = function(env = process.env) {
@ -164,16 +161,15 @@ WriteStream.prototype.getColorDepth = function(env = process.env) {
};
WriteStream.prototype._refreshSize = function() {
var oldCols = this.columns;
var oldRows = this.rows;
var winSize = new Array(2);
var err = this._handle.getWindowSize(winSize);
const oldCols = this.columns;
const oldRows = this.rows;
const winSize = new Array(2);
const err = this._handle.getWindowSize(winSize);
if (err) {
this.emit('error', errors.errnoException(err, 'getWindowSize'));
return;
}
var newCols = winSize[0];
var newRows = winSize[1];
const [newCols, newRows] = winSize;
if (oldCols !== newCols || oldRows !== newRows) {
this.columns = newCols;
this.rows = newRows;
@ -181,8 +177,7 @@ WriteStream.prototype._refreshSize = function() {
}
};
// backwards-compat
// Backwards-compat
WriteStream.prototype.cursorTo = function(x, y) {
readline.cursorTo(this, x, y);
};
@ -199,5 +194,4 @@ WriteStream.prototype.getWindowSize = function() {
return [this.columns, this.rows];
};
module.exports = { isatty, ReadStream, WriteStream };