Merge pull request #201 from Bytom/v0.1

[bytom/vapor.git] / vendor / github.com / multiformats / go-multiaddr / component.go

diff --git a/vendor/github.com/multiformats/go-multiaddr/component.go b/vendor/github.com/multiformats/go-multiaddr/component.go
deleted file mode 100644 (file)
index e31fe5d..0000000
--- a/vendor/github.com/multiformats/go-multiaddr/component.go
+++ /dev/null
@@ -1,132 +0,0 @@
-package multiaddr
-
-import (
-       "bytes"
-       "encoding/binary"
-       "fmt"
-       "strings"
-)
-
-// Component is a single multiaddr Component.
-type Component struct {
-       bytes    []byte
-       protocol Protocol
-       offset   int
-}
-
-func (c *Component) Bytes() []byte {
-       return c.bytes
-}
-
-func (c *Component) Equal(o Multiaddr) bool {
-       return bytes.Equal(c.bytes, o.Bytes())
-}
-
-func (c *Component) Protocols() []Protocol {
-       return []Protocol{c.protocol}
-}
-
-func (c *Component) Decapsulate(o Multiaddr) Multiaddr {
-       if c.Equal(o) {
-               return nil
-       }
-       return c
-}
-
-func (c *Component) Encapsulate(o Multiaddr) Multiaddr {
-       m := multiaddr{bytes: c.bytes}
-       return m.Encapsulate(o)
-}
-
-func (c *Component) ValueForProtocol(code int) (string, error) {
-       if c.protocol.Code != code {
-               return "", ErrProtocolNotFound
-       }
-       return c.Value(), nil
-}
-
-func (c *Component) Protocol() Protocol {
-       return c.protocol
-}
-
-func (c *Component) RawValue() []byte {
-       return c.bytes[c.offset:]
-}
-
-func (c *Component) Value() string {
-       if c.protocol.Transcoder == nil {
-               return ""
-       }
-       value, err := c.protocol.Transcoder.BytesToString(c.bytes[c.offset:])
-       if err != nil {
-               // This Component must have been checked.
-               panic(err)
-       }
-       return value
-}
-
-func (c *Component) String() string {
-       var b strings.Builder
-       c.writeTo(&b)
-       return b.String()
-}
-
-// writeTo is an efficient, private function for string-formatting a multiaddr.
-// Trust me, we tend to allocate a lot when doing this.
-func (c *Component) writeTo(b *strings.Builder) {
-       b.WriteByte('/')
-       b.WriteString(c.protocol.Name)
-       value := c.Value()
-       if len(value) == 0 {
-               return
-       }
-       if !(c.protocol.Path && value[0] == '/') {
-               b.WriteByte('/')
-       }
-       b.WriteString(value)
-}
-
-// NewComponent constructs a new multiaddr component
-func NewComponent(protocol, value string) (*Component, error) {
-       p := ProtocolWithName(protocol)
-       if p.Code == 0 {
-               return nil, fmt.Errorf("unsupported protocol: %s", protocol)
-       }
-       if p.Transcoder != nil {
-               bts, err := p.Transcoder.StringToBytes(value)
-               if err != nil {
-                       return nil, err
-               }
-               return newComponent(p, bts), nil
-       } else if value != "" {
-               return nil, fmt.Errorf("protocol %s doesn't take a value", p.Name)
-       }
-       return newComponent(p, nil), nil
-       // TODO: handle path /?
-}
-
-func newComponent(protocol Protocol, bvalue []byte) *Component {
-       size := len(bvalue)
-       size += len(protocol.VCode)
-       if protocol.Size < 0 {
-               size += VarintSize(len(bvalue))
-       }
-       maddr := make([]byte, size)
-       var offset int
-       offset += copy(maddr[offset:], protocol.VCode)
-       if protocol.Size < 0 {
-               offset += binary.PutUvarint(maddr[offset:], uint64(len(bvalue)))
-       }
-       copy(maddr[offset:], bvalue)
-
-       // For debugging
-       if len(maddr) != offset+len(bvalue) {
-               panic("incorrect length")
-       }
-
-       return &Component{
-               bytes:    maddr,
-               protocol: protocol,
-               offset:   offset,
-       }
-}