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https://github.com/wneessen/niljson.git
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Winni Neessen
1150734ab0
The Get() method was simply an alias for the Value() method and did not add any functionality. This simplification makes the code cleaner and reduces unnecessary duplication, improving maintainability.
83 lines
1.9 KiB
Go
83 lines
1.9 KiB
Go
// SPDX-FileCopyrightText: 2024 Winni Neessen <wn@neessen.dev>
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//
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// SPDX-License-Identifier: MIT
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package niljson
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import (
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"encoding/json"
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)
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// Variable is a generic variable type that can be null.
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type Variable[T any] struct {
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value T
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notNil bool
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}
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// Value returns the value of the Variable
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func (v *Variable[T]) Value() T {
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return v.value
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}
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// NotNil returns true when a Variable is not nil
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func (v *Variable[T]) NotNil() bool {
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return v.notNil
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}
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// IsNil returns true when a Variable is nil
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func (v *Variable[T]) IsNil() bool {
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return !v.notNil
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}
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// Reset resets the value to the Variable to a zero value and sets it to be nil
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func (v *Variable[T]) Reset() {
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var newVal T
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v.value = newVal
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v.notNil = false
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}
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// NilBoolean is an boolean type that can be nil
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type NilBoolean = Variable[bool]
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// NilByteSlice is a []byte type that can be nil
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type NilByteSlice = Variable[[]byte]
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// NilInt is an int type that can be nil
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type NilInt = Variable[int]
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// NilInt64 is an int64 type that can be nil
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type NilInt64 = Variable[int64]
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// NilUInt is an uint type that can be nil
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type NilUInt = Variable[uint]
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// NilUInt8 is an uint8 type that can be nil
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type NilUInt8 = Variable[uint8]
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// NilUInt16 is an uint16 type that can be nil
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type NilUInt16 = Variable[uint16]
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// NilUInt32 is an uint32 type that can be nil
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type NilUInt32 = Variable[uint32]
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// NilUInt64 is an uint64 type that can be nil
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type NilUInt64 = Variable[uint64]
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// NilFloat32 is an float32 type that can be nil
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type NilFloat32 = Variable[float32]
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// NilFloat64 is an float64 type that can be nil
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type NilFloat64 = Variable[float64]
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// NilString is a string type that can be nil
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type NilString = Variable[string]
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// UnmarshalJSON interprets the generic Nil types and sets the value and notnil of the type
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func (v *Variable[T]) UnmarshalJSON(data []byte) error {
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if string(data) != "null" {
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v.value = *new(T)
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v.notNil = true
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return json.Unmarshal(data, &v.value)
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}
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return nil
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}
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