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node.js v6 can now extends String

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This commit is contained in:
斟酌 鵬兄 2016-07-04 11:56:03 +08:00
parent 06c8b74221
commit c73aa30c39
1 changed files with 18 additions and 25 deletions
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43
utils/CondStream.js
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@ -1,19 +1,18 @@
"use strict";
var Dragonfly = global.Dragonfly;
var fs = require( "fs" );
var path = require( "path" );
var crypto = require( "crypto" );
const Dragonfly = global.Dragonfly;
var ReadStream = require( "stream" ).Readable;
const fs = require( "fs" );
const path = require( "path" );
const crypto = require( "crypto" );
const ReadStream = require( "stream" ).Readable;
class ConditionalStream extends String
{
constructor( tmpPath, triggerLimit )
{
super();
// XXX: Dirty fix for incompat on node js v5
Object.setPrototypeOf( this, new.target.prototype );
if( !tmpPath )
{
@ -36,7 +35,6 @@ class ConditionalStream extends String
write( data )
{
var _self = this;
this.size += data.length;
if( this.stream )
@ -61,36 +59,32 @@ class ConditionalStream extends String
end( handler )
{
var _self = this;
if( this.stream )
{
this.stream.addListener( "close", function() {
_self.__finished = true;
handler( _self );
this.stream.addListener( "close", () => {
this.__finished = true;
handler( this );
} );
this.stream.end();
}
else
{
setTimeout( function()
{
_self.__finished = true;
handler( _self )
setTimeout( () => {
this.__finished = true;
handler( this );
} , 0 );
}
}
discard()
{
var _self = this;
this.__discard = true;
if( this.__finished && this.file )
{
fs.unlink( this.file, function( e )
fs.unlink( this.file, ( e ) =>
{
Dragonfly.Debug( "Client Data Closed: " + _self.file );
if( _self.__error ) throw new Error( _self.__error );
Dragonfly.Debug( "Client Data Closed: " + this.file );
if( this.__error ) throw new Error( this.__error );
} );
}
}
@ -108,22 +102,21 @@ class ConditionalStream extends String
resultStream()
{
var _self = this;
if( !this.__finished ) throw new Error( "Data is not finished yet" );
if( this.__discard ) throw new Error( "Data is discarded" );
if( this.stream )
{
var rt = fs.createReadStream( this.file );
rt.addListener( "close", () => _self.discard() );
rt.addListener( "close", () => this.discard() );
return rt;
}
var st = new ReadStream();
st._read = function(){};
setTimeout( function() {
st.push( _self.hexData, "hex" );
setTimeout( () => {
st.push( this.hexData, "hex" );
st.push( null );
}, 0 );