From 420e07c5777bdb2e493147d296abfc102f725015 Mon Sep 17 00:00:00 2001 From: isaacs Date: Tue, 2 Oct 2012 15:44:50 -0700 Subject: streams2: The new stream base classes --- lib/_stream_passthrough.js | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 lib/_stream_passthrough.js (limited to 'lib/_stream_passthrough.js') diff --git a/lib/_stream_passthrough.js b/lib/_stream_passthrough.js new file mode 100644 index 0000000000..dd6390fc6e --- /dev/null +++ b/lib/_stream_passthrough.js @@ -0,0 +1,39 @@ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// a passthrough stream. +// basically just the most minimal sort of Transform stream. +// Every written chunk gets output as-is. + +module.exports = PassThrough; + +var Transform = require('_stream_transform'); +var util = require('util'); +util.inherits(PassThrough, Transform); + +function PassThrough(options) { + Transform.call(this, options); +} + +PassThrough.prototype._transform = function(chunk, output, cb) { + output(chunk); + cb(); +}; -- cgit v1.2.3