diff options
Diffstat (limited to 'deps/npm/node_modules/isstream/isstream.js')
-rw-r--r-- | deps/npm/node_modules/isstream/isstream.js | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/deps/npm/node_modules/isstream/isstream.js b/deps/npm/node_modules/isstream/isstream.js new file mode 100644 index 0000000000..a1d104a7ac --- /dev/null +++ b/deps/npm/node_modules/isstream/isstream.js @@ -0,0 +1,27 @@ +var stream = require('stream') + + +function isStream (obj) { + return obj instanceof stream.Stream +} + + +function isReadable (obj) { + return isStream(obj) && typeof obj._read == 'function' && typeof obj._readableState == 'object' +} + + +function isWritable (obj) { + return isStream(obj) && typeof obj._write == 'function' && typeof obj._writableState == 'object' +} + + +function isDuplex (obj) { + return isReadable(obj) && isWritable(obj) +} + + +module.exports = isStream +module.exports.isReadable = isReadable +module.exports.isWritable = isWritable +module.exports.isDuplex = isDuplex |