Constructor: refactor to simplify
- Return early.
- One less level of if blocks
- Byte comparison is just enough to compare to '/'
diff --git a/pointer.go b/pointer.go
index 0e5d9ae..ac078ee 100644
--- a/pointer.go
+++ b/pointer.go
@@ -67,17 +67,17 @@
// "Constructor", parses the given string JSON pointer
func (p *JsonPointer) parse(jsonPointerString string) error {
- var err error
-
- if jsonPointerString != const_empty_pointer {
- if !strings.HasPrefix(jsonPointerString, const_pointer_separator) {
- err = errors.New(const_invalid_start)
- } else {
- p.referenceTokens = strings.Split(jsonPointerString[1:], const_pointer_separator)
- }
+ // Pointer to the root of the document
+ if len(jsonPointerString) == 0 {
+ // Keep referenceTokens nil
+ return nil
+ }
+ if jsonPointerString[0] != '/' {
+ return errors.New(const_invalid_start)
}
- return err
+ p.referenceTokens = strings.Split(jsonPointerString[1:], const_pointer_separator)
+ return nil
}
// Uses the pointer to retrieve a value from a JSON document
