bump(github.com/go-openapi/spec): 7abd5745472fff5eb3685386d5fb8bf38683154d

vendor/github.com/mailru/easyjson/buffer/pool.go

@@ -179,18 +179,25 @@ func (b *Buffer) DumpTo(w io.Writer) (written int, err error) {
 }
 
 // BuildBytes creates a single byte slice with all the contents of the buffer. Data is
-// copied if it does not fit in a single chunk.
-func (b *Buffer) BuildBytes() []byte {
+// copied if it does not fit in a single chunk. You can optionally provide one byte
+// slice as argument that it will try to reuse.
+func (b *Buffer) BuildBytes(reuse ...[]byte) []byte {
 	if len(b.bufs) == 0 {
-
 		ret := b.Buf
 		b.toPool = nil
 		b.Buf = nil
-
 		return ret
 	}
 
-	ret := make([]byte, 0, b.Size())
+	var ret []byte
+	size := b.Size()
+
+	// If we got a buffer as argument and it is big enought, reuse it.
+	if len(reuse) == 1 && cap(reuse[0]) >= size {
+		ret = reuse[0][:0]
+	} else {
+		ret = make([]byte, 0, size)
+	}
 	for _, buf := range b.bufs {
 		ret = append(ret, buf...)
 		putBuf(buf)
@@ -205,3 +212,59 @@ func (b *Buffer) BuildBytes() []byte {
 
 	return ret
 }
+
+type readCloser struct {
+	offset int
+	bufs   [][]byte
+}
+
+func (r *readCloser) Read(p []byte) (n int, err error) {
+	for _, buf := range r.bufs {
+		// Copy as much as we can.
+		x := copy(p[n:], buf[r.offset:])
+		n += x // Increment how much we filled.
+
+		// Did we empty the whole buffer?
+		if r.offset+x == len(buf) {
+			// On to the next buffer.
+			r.offset = 0
+			r.bufs = r.bufs[1:]
+
+			// We can release this buffer.
+			putBuf(buf)
+		} else {
+			r.offset += x
+		}
+
+		if n == len(p) {
+			break
+		}
+	}
+	// No buffers left or nothing read?
+	if len(r.bufs) == 0 {
+		err = io.EOF
+	}
+	return
+}
+
+func (r *readCloser) Close() error {
+	// Release all remaining buffers.
+	for _, buf := range r.bufs {
+		putBuf(buf)
+	}
+	// In case Close gets called multiple times.
+	r.bufs = nil
+
+	return nil
+}
+
+// ReadCloser creates an io.ReadCloser with all the contents of the buffer.
+func (b *Buffer) ReadCloser() io.ReadCloser {
+	ret := &readCloser{0, append(b.bufs, b.Buf)}
+
+	b.bufs = nil
+	b.toPool = nil
+	b.Buf = nil
+
+	return ret
+}