47 lines
977 B
Go
47 lines
977 B
Go
package buffer
|
|
|
|
import "math"
|
|
|
|
// ListAt is a slice of BufferAt's, it's the backing for NewPartitionAt
|
|
type ListAt []BufferAt
|
|
|
|
// Len is the sum of the Len()'s of the BufferAt's in the list.
|
|
func (l *ListAt) Len() (n int64) {
|
|
for _, buffer := range *l {
|
|
if n > math.MaxInt64-buffer.Len() {
|
|
return math.MaxInt64
|
|
}
|
|
n += buffer.Len()
|
|
}
|
|
return n
|
|
}
|
|
|
|
// Cap is the sum of the Cap()'s of the BufferAt's in the list.
|
|
func (l *ListAt) Cap() (n int64) {
|
|
for _, buffer := range *l {
|
|
if n > math.MaxInt64-buffer.Cap() {
|
|
return math.MaxInt64
|
|
}
|
|
n += buffer.Cap()
|
|
}
|
|
return n
|
|
}
|
|
|
|
// Reset calls Reset() on each of the BufferAt's in the list.
|
|
func (l *ListAt) Reset() {
|
|
for _, buffer := range *l {
|
|
buffer.Reset()
|
|
}
|
|
}
|
|
|
|
// Push adds a BufferAt to the end of the list
|
|
func (l *ListAt) Push(b BufferAt) {
|
|
*l = append(*l, b)
|
|
}
|
|
|
|
// Pop removes and returns a BufferAt from the front of the list
|
|
func (l *ListAt) Pop() (b BufferAt) {
|
|
b = (*l)[0]
|
|
*l = (*l)[1:]
|
|
return b
|
|
}
|