29 lines
654 B
Go
29 lines
654 B
Go
|
package iotools
|
||
|
|
|
||
|
|
import (
|
||
|
|
"io"
|
||
|
|
)
|
||
|
|
|
||
|
|
// ReaderFunc is a function signature which allows
|
||
|
|
// a function to implement the io.Reader type.
|
||
|
|
type ReaderFunc func([]byte) (int, error)
|
||
|
|
|
||
|
|
func (r ReaderFunc) Read(b []byte) (int, error) {
|
||
|
|
return r(b)
|
||
|
|
}
|
||
|
|
|
||
|
|
// ReadCloser wraps an io.Reader and io.Closer in order to implement io.ReadCloser.
|
||
|
|
func ReadCloser(r io.Reader, c io.Closer) io.ReadCloser {
|
||
|
|
return &struct {
|
||
|
|
io.Reader
|
||
|
|
io.Closer
|
||
|
|
}{r, c}
|
||
|
|
}
|
||
|
|
|
||
|
|
// NopReadCloser wraps an io.Reader to implement io.ReadCloser with empty io.Closer implementation.
|
||
|
|
func NopReadCloser(r io.Reader) io.ReadCloser {
|
||
|
|
return ReadCloser(r, CloserFunc(func() error {
|
||
|
|
return nil
|
||
|
|
}))
|
||
|
|
}
|