Backport v7 updates

backporting v7 updates for the near released v7.

README.md

@@ -192,24 +192,28 @@ NOTE: allocations for structs are up from v5, however ns/op for parallel operati
 It was a decicion not to cache struct info because although it reduced allocation to v5 levels, it
 hurt parallel performance too much.
 ```go
-$ go test -cpu=4 -bench=. -benchmem=true
+ go test -cpu=4 -bench=. -benchmem=true
 PASS
-BenchmarkFieldSuccess-4	 					 5000000	       318 ns/op	      16 B/op	       1 allocs/op
-BenchmarkFieldFailure-4	 					 5000000	       316 ns/op	      16 B/op	       1 allocs/op
-BenchmarkFieldCustomTypeSuccess-4	 		 3000000	       492 ns/op	      32 B/op	       2 allocs/op
-BenchmarkFieldCustomTypeFailure-4	 		 2000000	       843 ns/op	     416 B/op	       6 allocs/op
-BenchmarkFieldOrTagSuccess-4	  			  500000	      2384 ns/op	      20 B/op	       2 allocs/op
-BenchmarkFieldOrTagFailure-4	 			 1000000	      1295 ns/op	     384 B/op	       6 allocs/op
-BenchmarkStructSimpleSuccess-4	 			 1000000	      1175 ns/op	      24 B/op	       3 allocs/op
-BenchmarkStructSimpleFailure-4	 			 1000000	      1822 ns/op	     529 B/op	      11 allocs/op
-BenchmarkStructSimpleCustomTypeSuccess-4	 1000000	      1302 ns/op	      56 B/op	       5 allocs/op
-BenchmarkStructSimpleCustomTypeFailure-4	 1000000	      1847 ns/op	     577 B/op	      13 allocs/op
-BenchmarkStructSimpleSuccessParallel-4	 	 5000000	       339 ns/op	      24 B/op	       3 allocs/op
-BenchmarkStructSimpleFailureParallel-4	 	 2000000	       733 ns/op	     529 B/op	      11 allocs/op
-BenchmarkStructComplexSuccess-4	  			  200000	      7104 ns/op	     368 B/op	      30 allocs/op
-BenchmarkStructComplexFailure-4	  			  100000	     11996 ns/op	    2861 B/op	      72 allocs/op
-BenchmarkStructComplexSuccessParallel-4	 	 1000000	      2252 ns/op	     368 B/op	      30 allocs/op
-BenchmarkStructComplexFailureParallel-4	  	  300000	      4691 ns/op	    2862 B/op	      72 allocs/op
+BenchmarkFieldSuccess-4	 					 5000000	       337 ns/op	      16 B/op	       1 allocs/op
+BenchmarkFieldFailure-4	 					 5000000	       331 ns/op	      16 B/op	       1 allocs/op
+BenchmarkFieldCustomTypeSuccess-4	 		 3000000	       497 ns/op	      32 B/op	       2 allocs/op
+BenchmarkFieldCustomTypeFailure-4	 		 2000000	       842 ns/op	     416 B/op	       6 allocs/op
+BenchmarkFieldOrTagSuccess-4	  			  500000	      2432 ns/op	      20 B/op	       2 allocs/op
+BenchmarkFieldOrTagFailure-4	 			 1000000	      1323 ns/op	     384 B/op	       6 allocs/op
+BenchmarkStructSimpleCustomTypeSuccess-4	 1000000	      1409 ns/op	      56 B/op	       5 allocs/op
+BenchmarkStructSimpleCustomTypeFailure-4	 1000000	      1876 ns/op	     577 B/op	      13 allocs/op
+BenchmarkStructPartialSuccess-4	 			 1000000	      1438 ns/op	     384 B/op	      13 allocs/op
+BenchmarkStructPartialFailure-4	 			 1000000	      2040 ns/op	     785 B/op	      18 allocs/op
+BenchmarkStructExceptSuccess-4	 			 1000000	      1000 ns/op	     368 B/op	      11 allocs/op
+BenchmarkStructExceptFailure-4	 			 1000000	      1431 ns/op	     384 B/op	      13 allocs/op
+BenchmarkStructSimpleSuccess-4	 			 1000000	      1375 ns/op	      24 B/op	       3 allocs/op
+BenchmarkStructSimpleFailure-4	 			 1000000	      1893 ns/op	     529 B/op	      11 allocs/op
+BenchmarkStructSimpleSuccessParallel-4	 	 5000000	       362 ns/op	      24 B/op	       3 allocs/op
+BenchmarkStructSimpleFailureParallel-4	 	 2000000	       883 ns/op	     529 B/op	      11 allocs/op
+BenchmarkStructComplexSuccess-4	  			  200000	      8237 ns/op	     368 B/op	      30 allocs/op
+BenchmarkStructComplexFailure-4	  			  100000	     12617 ns/op	    2861 B/op	      72 allocs/op
+BenchmarkStructComplexSuccessParallel-4	 	 1000000	      2398 ns/op	     368 B/op	      30 allocs/op
+BenchmarkStructComplexFailureParallel-4	  	  300000	      5733 ns/op	    2862 B/op	      72 allocs/op
 ```
 
 How to Contribute

baked_in.go

@@ -5,7 +5,6 @@ import (
 	"net"
 	"net/url"
 	"reflect"
-	"strconv"
 	"strings"
 	"time"
 	"unicode/utf8"
@@ -902,39 +901,3 @@ func hasMaxOf(topStruct reflect.Value, currentStruct reflect.Value, field reflec
 
 	return isLte(topStruct, currentStruct, field, fieldType, fieldKind, param)
 }
-
-// asInt retuns the parameter as a int64
-// or panics if it can't convert
-func asInt(param string) int64 {
-
-	i, err := strconv.ParseInt(param, 0, 64)
-	panicIf(err)
-
-	return i
-}
-
-// asUint returns the parameter as a uint64
-// or panics if it can't convert
-func asUint(param string) uint64 {
-
-	i, err := strconv.ParseUint(param, 0, 64)
-	panicIf(err)
-
-	return i
-}
-
-// asFloat returns the parameter as a float64
-// or panics if it can't convert
-func asFloat(param string) float64 {
-
-	i, err := strconv.ParseFloat(param, 64)
-	panicIf(err)
-
-	return i
-}
-
-func panicIf(err error) {
-	if err != nil {
-		panic(err.Error())
-	}
-}

benchmarks_test.go

@@ -62,34 +62,6 @@ func BenchmarkFieldOrTagFailure(b *testing.B) {
 	}
 }
 
-func BenchmarkStructSimpleSuccess(b *testing.B) {
-
-	type Foo struct {
-		StringValue string `validate:"min=5,max=10"`
-		IntValue    int    `validate:"min=5,max=10"`
-	}
-
-	validFoo := &Foo{StringValue: "Foobar", IntValue: 7}
-
-	for n := 0; n < b.N; n++ {
-		validate.Struct(validFoo)
-	}
-}
-
-func BenchmarkStructSimpleFailure(b *testing.B) {
-
-	type Foo struct {
-		StringValue string `validate:"min=5,max=10"`
-		IntValue    int    `validate:"min=5,max=10"`
-	}
-
-	invalidFoo := &Foo{StringValue: "Fo", IntValue: 3}
-
-	for n := 0; n < b.N; n++ {
-		validate.Struct(invalidFoo)
-	}
-}
-
 func BenchmarkStructSimpleCustomTypeSuccess(b *testing.B) {
 
 	customTypes := map[reflect.Type]CustomTypeFunc{}
@@ -136,6 +108,98 @@ func BenchmarkStructSimpleCustomTypeFailure(b *testing.B) {
 	}
 }
 
+func BenchmarkStructPartialSuccess(b *testing.B) {
+
+	type Test struct {
+		Name     string `validate:"required"`
+		NickName string `validate:"required"`
+	}
+
+	test := &Test{
+		Name: "Joey Bloggs",
+	}
+
+	for n := 0; n < b.N; n++ {
+		validate.StructPartial(test, "Name")
+	}
+}
+
+func BenchmarkStructPartialFailure(b *testing.B) {
+
+	type Test struct {
+		Name     string `validate:"required"`
+		NickName string `validate:"required"`
+	}
+
+	test := &Test{
+		Name: "Joey Bloggs",
+	}
+
+	for n := 0; n < b.N; n++ {
+		validate.StructPartial(test, "NickName")
+	}
+}
+
+func BenchmarkStructExceptSuccess(b *testing.B) {
+
+	type Test struct {
+		Name     string `validate:"required"`
+		NickName string `validate:"required"`
+	}
+
+	test := &Test{
+		Name: "Joey Bloggs",
+	}
+
+	for n := 0; n < b.N; n++ {
+		validate.StructPartial(test, "Nickname")
+	}
+}
+
+func BenchmarkStructExceptFailure(b *testing.B) {
+
+	type Test struct {
+		Name     string `validate:"required"`
+		NickName string `validate:"required"`
+	}
+
+	test := &Test{
+		Name: "Joey Bloggs",
+	}
+
+	for n := 0; n < b.N; n++ {
+		validate.StructPartial(test, "Name")
+	}
+}
+
+func BenchmarkStructSimpleSuccess(b *testing.B) {
+
+	type Foo struct {
+		StringValue string `validate:"min=5,max=10"`
+		IntValue    int    `validate:"min=5,max=10"`
+	}
+
+	validFoo := &Foo{StringValue: "Foobar", IntValue: 7}
+
+	for n := 0; n < b.N; n++ {
+		validate.Struct(validFoo)
+	}
+}
+
+func BenchmarkStructSimpleFailure(b *testing.B) {
+
+	type Foo struct {
+		StringValue string `validate:"min=5,max=10"`
+		IntValue    int    `validate:"min=5,max=10"`
+	}
+
+	invalidFoo := &Foo{StringValue: "Fo", IntValue: 3}
+
+	for n := 0; n < b.N; n++ {
+		validate.Struct(invalidFoo)
+	}
+}
+
 func BenchmarkStructSimpleSuccessParallel(b *testing.B) {
 
 	type Foo struct {

util.go

@@ -0,0 +1,82 @@
+package validator
+
+import (
+	"reflect"
+	"strconv"
+)
+
+const (
+	namespaceSeparator = "."
+	leftBracket        = "["
+	rightBracket       = "]"
+)
+
+func (v *Validate) extractType(current reflect.Value) (reflect.Value, reflect.Kind) {
+
+	switch current.Kind() {
+	case reflect.Ptr:
+
+		if current.IsNil() {
+			return current, reflect.Ptr
+		}
+
+		return v.extractType(current.Elem())
+
+	case reflect.Interface:
+
+		if current.IsNil() {
+			return current, reflect.Interface
+		}
+
+		return v.extractType(current.Elem())
+
+	case reflect.Invalid:
+		return current, reflect.Invalid
+
+	default:
+
+		if v.config.hasCustomFuncs {
+			if fn, ok := v.config.CustomTypeFuncs[current.Type()]; ok {
+				return v.extractType(reflect.ValueOf(fn(current)))
+			}
+		}
+
+		return current, current.Kind()
+	}
+}
+
+// asInt retuns the parameter as a int64
+// or panics if it can't convert
+func asInt(param string) int64 {
+
+	i, err := strconv.ParseInt(param, 0, 64)
+	panicIf(err)
+
+	return i
+}
+
+// asUint returns the parameter as a uint64
+// or panics if it can't convert
+func asUint(param string) uint64 {
+
+	i, err := strconv.ParseUint(param, 0, 64)
+	panicIf(err)
+
+	return i
+}
+
+// asFloat returns the parameter as a float64
+// or panics if it can't convert
+func asFloat(param string) float64 {
+
+	i, err := strconv.ParseFloat(param, 64)
+	panicIf(err)
+
+	return i
+}
+
+func panicIf(err error) {
+	if err != nil {
+		panic(err.Error())
+	}
+}