74 lines
1.2 KiB
Go
74 lines
1.2 KiB
Go
package jsonpointer
|
|
|
|
import (
|
|
"strconv"
|
|
|
|
"github.com/pkg/errors"
|
|
)
|
|
|
|
func del(doc interface{}, tokens []string) (interface{}, error) {
|
|
currentToken := tokens[0]
|
|
|
|
switch typedDoc := doc.(type) {
|
|
|
|
case map[string]interface{}:
|
|
nestedDoc, exists := typedDoc[currentToken]
|
|
if !exists {
|
|
return doc, nil
|
|
}
|
|
|
|
if len(tokens) == 1 {
|
|
delete(typedDoc, currentToken)
|
|
|
|
return typedDoc, nil
|
|
}
|
|
|
|
nestedDoc, err := del(nestedDoc, tokens[1:])
|
|
if err != nil {
|
|
return nil, errors.WithStack(err)
|
|
}
|
|
|
|
typedDoc[currentToken] = nestedDoc
|
|
|
|
return typedDoc, nil
|
|
|
|
case []interface{}:
|
|
var (
|
|
index uint64
|
|
nestedDoc interface{}
|
|
err error
|
|
)
|
|
|
|
if currentToken == NonExistentMemberToken {
|
|
index = uint64(len(typedDoc) - 1)
|
|
} else {
|
|
index, err = strconv.ParseUint(currentToken, 10, 64)
|
|
if err != nil {
|
|
return nil, errors.WithStack(err)
|
|
}
|
|
|
|
if len(typedDoc) <= int(index) {
|
|
return typedDoc, nil
|
|
}
|
|
}
|
|
|
|
if len(tokens) == 1 {
|
|
typedDoc = append(typedDoc[:index], typedDoc[index+1:]...)
|
|
|
|
return typedDoc, nil
|
|
}
|
|
|
|
nestedDoc, err = del(nestedDoc, tokens[1:])
|
|
if err != nil {
|
|
return nil, errors.WithStack(err)
|
|
}
|
|
|
|
typedDoc[index] = nestedDoc
|
|
|
|
return typedDoc, nil
|
|
|
|
default:
|
|
return typedDoc, nil
|
|
}
|
|
}
|