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better nbt error message & dimensioncodec decoder

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This commit is contained in:
Tnze
2022-06-19 23:05:10 +08:00
parent 30479d6ea5
commit d94993f34f
6 changed files with 67 additions and 142 deletions
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15
nbt/decode.go
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@ -39,10 +39,6 @@ func (d *Decoder) Decode(v interface{}) (string, error) {
return tagName, fmt.Errorf("nbt: %w", err)
}
if c := d.checkCompressed(tagType); c != "" {
return tagName, fmt.Errorf("nbt: unknown Tag, maybe compressed by %s, uncompress it first", c)
}
// We decode val not val.Elem because the Unmarshaler interface
// test must be applied at the top level of the value.
err = d.unmarshal(val, tagType)
@ -78,7 +74,7 @@ func (d *Decoder) unmarshal(val reflect.Value, tagType byte) error {
switch tagType {
default:
return fmt.Errorf("unknown Tag 0x%02x", tagType)
return fmt.Errorf("unknown Tag %#02x", tagType)
case TagEnd:
return ErrEND
@ -505,7 +501,7 @@ func (d *Decoder) rawRead(tagType byte) error {
var buf [8]byte
switch tagType {
default:
return fmt.Errorf("unknown to read 0x%02x", tagType)
return fmt.Errorf("unknown to read %#02x", tagType)
case TagByte:
_, err := d.readByte()
return err
@ -590,7 +586,12 @@ func (d *Decoder) readTag() (tagType byte, tagName string, err error) {
return
}
if tagType != TagEnd { //Read Tag
switch tagType {
case 0x1f, 0x78:
c := d.checkCompressed(tagType)
err = fmt.Errorf("nbt: unknown Tag %#02x, which seems like %s header and you should uncompress it first", tagType, c)
case TagEnd:
default: //Read Tag
tagName, err = d.readString()
}
return