aaac7fed
 liuqimichale
add
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
|
module.exports = shift
function shift (stream) {
var rs = stream._readableState
if (!rs) return null
return rs.objectMode ? stream.read() : stream.read(getStateLength(rs))
}
function getStateLength (state) {
if (state.buffer.length) {
// Since node 6.3.0 state.buffer is a BufferList not an array
if (state.buffer.head) {
return state.buffer.head.data.length
}
return state.buffer[0].length
}
return state.length
}
|
