Add minor optimization for structonly & nostructlevel checks

Author: joeybloggs

util.go

@@ -271,15 +271,22 @@ func (v *Validate) parseTagsRecursive(cTag *cachedTag, tag, fieldName, alias str
 			}
 		}
 
-		if t == diveTag {
+		switch t {
+
+		case diveTag:
 			cTag.diveTag = tag
 			tVals := &tagVals{tagVals: [][]string{{t}}}
 			cTag.tags = append(cTag.tags, tVals)
 			return true
-		}
 
-		if t == omitempty {
+		case omitempty:
 			cTag.isOmitEmpty = true
+
+		case structOnlyTag:
+			cTag.isStructOnly = true
+
+		case noStructLevelTag:
+			cTag.isNoStructLevel = true
 		}
 
 		// if a pipe character is needed within the param you must use the utf8Pipe representation "0x7C"

validator.go

@@ -48,9 +48,11 @@ var (
 )
 
 type cachedTag struct {
-	isOmitEmpty bool
-	diveTag     string
-	tags        []*tagVals
+	isOmitEmpty     bool
+	isNoStructLevel bool
+	isStructOnly    bool
+	diveTag         string
+	tags            []*tagVals
 }
 
 type tagVals struct {
@@ -597,11 +599,11 @@ func (v *Validate) traverseField(topStruct reflect.Value, currentStruct reflect.
 
 		if typ != timeType {
 
-			if strings.Contains(tag, noStructLevelTag) {
+			if cTag.isNoStructLevel {
 				return
 			}
 
-			v.tranverseStruct(topStruct, current, current, errPrefix+name+".", errs, false, partial, exclude, includeExclude, strings.Contains(tag, structOnlyTag))
+			v.tranverseStruct(topStruct, current, current, errPrefix+name+".", errs, false, partial, exclude, includeExclude, cTag.isStructOnly)
 			return
 		}
 	}