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Merge pull request #103 from multiformats/feat/parse-error

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improve parse error
This commit is contained in:
Steven Allen 2019-05-17 11:11:32 -07:00 committed by GitHub
commit fddba8703e
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1 changed files with 4 additions and 5 deletions
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9
codec.go
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@ -7,7 +7,6 @@ import (
)
func stringToBytes(s string) ([]byte, error) {
// consume trailing slashes
s = strings.TrimRight(s, "/")
@ -15,7 +14,7 @@ func stringToBytes(s string) ([]byte, error) {
sp := strings.Split(s, "/")
if sp[0] != "" {
return nil, fmt.Errorf("invalid multiaddr, must begin with /")
return nil, fmt.Errorf("failed to parse multiaddr %q: must begin with /", s)
}
// consume first empty elem
@ -25,7 +24,7 @@ func stringToBytes(s string) ([]byte, error) {
name := sp[0]
p := ProtocolWithName(name)
if p.Code == 0 {
return nil, fmt.Errorf("no protocol with name %s", sp[0])
return nil, fmt.Errorf("failed to parse multiaddr %q: unknown protocol %s", s, sp[0])
}
_, _ = b.Write(CodeToVarint(p.Code))
sp = sp[1:]
@ -35,7 +34,7 @@ func stringToBytes(s string) ([]byte, error) {
}
if len(sp) < 1 {
return nil, fmt.Errorf("protocol requires address, none given: %s", name)
return nil, fmt.Errorf("failed to parse multiaddr %q: unexpected end of multiaddr", s)
}
if p.Path {
@ -46,7 +45,7 @@ func stringToBytes(s string) ([]byte, error) {
a, err := p.Transcoder.StringToBytes(sp[0])
if err != nil {
return nil, fmt.Errorf("failed to parse %s: %s %s", p.Name, sp[0], err)
return nil, fmt.Errorf("failed to parse multiaddr %q: invalid value %q for protocol %s: %s", s, sp[0], p.Name, err)
}
if p.Size < 0 { // varint size.
_, _ = b.Write(CodeToVarint(len(a)))