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83 lines
2.2 KiB
83 lines
2.2 KiB
// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
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//
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// This Source Code Form is subject to the terms of the MIT License.
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// If a copy of the MIT was not distributed with this file,
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// You can obtain one at https://github.com/gogf/gf.
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package gtype
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import (
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"sync/atomic"
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"github.com/gogf/gf/v2/internal/deepcopy"
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"github.com/gogf/gf/v2/internal/json"
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"github.com/gogf/gf/v2/util/gconv"
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)
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// Interface is a struct for concurrent-safe operation for type interface{}.
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type Interface struct {
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value atomic.Value
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}
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// NewInterface creates and returns a concurrent-safe object for interface{} type,
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// with given initial value `value`.
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func NewInterface(value ...interface{}) *Interface {
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t := &Interface{}
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if len(value) > 0 && value[0] != nil {
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t.value.Store(value[0])
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}
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return t
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}
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// Clone clones and returns a new concurrent-safe object for interface{} type.
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func (v *Interface) Clone() *Interface {
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return NewInterface(v.Val())
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}
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// Set atomically stores `value` into t.value and returns the previous value of t.value.
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// Note: The parameter `value` cannot be nil.
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func (v *Interface) Set(value interface{}) (old interface{}) {
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old = v.Val()
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v.value.Store(value)
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return
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}
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// Val atomically loads and returns t.value.
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func (v *Interface) Val() interface{} {
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return v.value.Load()
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}
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// String implements String interface for string printing.
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func (v *Interface) String() string {
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return gconv.String(v.Val())
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}
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// MarshalJSON implements the interface MarshalJSON for json.Marshal.
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func (v Interface) MarshalJSON() ([]byte, error) {
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return json.Marshal(v.Val())
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}
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// UnmarshalJSON implements the interface UnmarshalJSON for json.Unmarshal.
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func (v *Interface) UnmarshalJSON(b []byte) error {
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var i interface{}
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if err := json.UnmarshalUseNumber(b, &i); err != nil {
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return err
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}
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v.Set(i)
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return nil
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}
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// UnmarshalValue is an interface implement which sets any type of value for `v`.
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func (v *Interface) UnmarshalValue(value interface{}) error {
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v.Set(value)
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return nil
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}
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// DeepCopy implements interface for deep copy of current type.
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func (v *Interface) DeepCopy() interface{} {
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if v == nil {
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return nil
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}
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return NewInterface(deepcopy.Copy(v.Val()))
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}
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