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utils_is.go
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utils_is.go
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// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
//
// This Source Code Form is subject to the terms of the MIT License.
// If a copy of the MIT was not distributed with this file,
// You can obtain one at https://github.com/gogf/gf.
package utils
import (
"github.com/gogf/gf/internal/empty"
"reflect"
)
// IsNil checks whether `value` is nil.
func IsNil(value interface{}) bool {
return value == nil
}
// IsEmpty checks whether `value` is empty.
func IsEmpty(value interface{}) bool {
return empty.IsEmpty(value)
}
// IsInt checks whether `value` is type of int.
func IsInt(value interface{}) bool {
switch value.(type) {
case int, *int, int8, *int8, int16, *int16, int32, *int32, int64, *int64:
return true
}
return false
}
// IsUint checks whether `value` is type of uint.
func IsUint(value interface{}) bool {
switch value.(type) {
case uint, *uint, uint8, *uint8, uint16, *uint16, uint32, *uint32, uint64, *uint64:
return true
}
return false
}
// IsFloat checks whether `value` is type of float.
func IsFloat(value interface{}) bool {
switch value.(type) {
case float32, *float32, float64, *float64:
return true
}
return false
}
// IsSlice checks whether `value` is type of slice.
func IsSlice(value interface{}) bool {
var (
reflectValue = reflect.ValueOf(value)
reflectKind = reflectValue.Kind()
)
for reflectKind == reflect.Ptr {
reflectValue = reflectValue.Elem()
}
switch reflectKind {
case reflect.Slice, reflect.Array:
return true
}
return false
}
// IsMap checks whether `value` is type of map.
func IsMap(value interface{}) bool {
var (
reflectValue = reflect.ValueOf(value)
reflectKind = reflectValue.Kind()
)
for reflectKind == reflect.Ptr {
reflectValue = reflectValue.Elem()
}
switch reflectKind {
case reflect.Map:
return true
}
return false
}
// IsStruct checks whether `value` is type of struct.
func IsStruct(value interface{}) bool {
var (
reflectValue = reflect.ValueOf(value)
reflectKind = reflectValue.Kind()
)
for reflectKind == reflect.Ptr {
reflectValue = reflectValue.Elem()
reflectKind = reflectValue.Kind()
}
switch reflectKind {
case reflect.Struct:
return true
}
return false
}