Added support for unsigned integers in binding parameters of form posts. Also changed parsing of integer fields to take into account the size of the fields.

binding/binding.go

@@ -98,18 +98,54 @@ func mapForm(ptr interface{}, form map[string][]string) error {
 	return nil
 }
 
+func setIntField(val string, bitSize int, structField reflect.Value) error {
+	if val == "" {
+		val = "0"
+	}
+
+	intVal, err := strconv.ParseInt(val, 10, bitSize)
+	if err == nil {
+		structField.SetInt(intVal)
+	}
+
+	return err
+}
+
+func setUintField(val string, bitSize int, structField reflect.Value) error {
+	if val == "" {
+		val = "0"
+	}
+
+	uintVal, err := strconv.ParseUint(val, 10, bitSize)
+	if err == nil {
+		structField.SetUint(uintVal)
+	}
+
+	return err
+}
+
 func setWithProperType(valueKind reflect.Kind, val string, structField reflect.Value) error {
 	switch valueKind {
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		if val == "" {
-			val = "0"
-		}
-		intVal, err := strconv.Atoi(val)
-		if err != nil {
-			return err
-		} else {
-			structField.SetInt(int64(intVal))
-		}
+	case reflect.Int:
+		return setIntField(val, 0, structField)
+	case reflect.Int8:
+		return setIntField(val, 8, structField)
+	case reflect.Int16:
+		return setIntField(val, 16, structField)
+	case reflect.Int32:
+		return setIntField(val, 32, structField)
+	case reflect.Int64:
+		return setIntField(val, 64, structField)
+	case reflect.Uint:
+		return setUintField(val, 0, structField)
+	case reflect.Uint8:
+		return setUintField(val, 8, structField)
+	case reflect.Uint16:
+		return setUintField(val, 16, structField)
+	case reflect.Uint32:
+		return setUintField(val, 32, structField)
+	case reflect.Uint64:
+		return setUintField(val, 64, structField)
 	case reflect.Bool:
 		if val == "" {
 			val = "false"