status-go/vendor/github.com/russolsen/transit/utils.go

64 lines
2.0 KiB
Go

// Copyright 2016 Russ Olsen. All Rights Reserved.
//
// This code is a Go port of the Java version created and maintained by Cognitect, therefore:
//
// Copyright 2014 Cognitect. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package transit
import (
"reflect"
)
// GetMapElement pulls a value out of a map (represented by
// the m value). This function differs from the reflect.Value
// MapIndex in that the type and kind of the returned value
// reflect the type and kind of the element, not what was
// declared in the map.
func GetMapElement(m reflect.Value, key reflect.Value) reflect.Value {
element := m.MapIndex(key)
return reflect.ValueOf(element.Interface())
}
// GetElement pulls a value out of a array (represented by
// the array value). This function differs from the reflect.Value
// Index in that the type and kind of the returned value
// reflect the type and kind of the element, not what was
// declared in the array.
func GetElement(array reflect.Value, i int) reflect.Value {
element := array.Index(i)
return reflect.ValueOf(element.Interface())
}
// KeyValues returns the Values for the keys in a map.
func KeyValues(m reflect.Value) []reflect.Value {
keys := m.MapKeys()
result := make([]reflect.Value, len(keys))
for i, v := range keys {
result[i] = reflect.ValueOf(v.Interface())
}
return result
}
func IsGenericArray(x interface{}) bool {
switch x.(type) {
case []interface{}:
return true
default:
return false
}
}