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author | Rebecca Turner <me@re-becca.org> | 2015-05-22 11:33:46 +0300 |
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committer | Rebecca Turner <me@re-becca.org> | 2015-06-26 03:27:03 +0300 |
commit | d3c858ce4cfb3aee515bb299eb034fe1b5e44344 (patch) | |
tree | e7714c839934a729b68038f4c7dc5ec3ed877638 /node_modules/isstream/isstream.js | |
parent | 24564b9654528d23c726cf9ea82b1aef2044b692 (diff) |
deps: deduplicate npm@3 style
Diffstat (limited to 'node_modules/isstream/isstream.js')
-rw-r--r-- | node_modules/isstream/isstream.js | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/node_modules/isstream/isstream.js b/node_modules/isstream/isstream.js new file mode 100644 index 000000000..a1d104a7a --- /dev/null +++ b/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 |