uintptr.go

// Code generated by 'go generate'

package optional

import (
	"encoding/json"
	"errors"
)

// Uintptr is an optional uintptr.
type Uintptr struct {
	value *uintptr
}

// NewUintptr creates an optional.Uintptr from a uintptr.
func NewUintptr(v uintptr) Uintptr {
	return Uintptr{&v}
}

// NewUintptrFromPtr creates an optional.Uintptr from a uintptr pointer.
func NewUintptrFromPtr(v *uintptr) Uintptr {
	if v == nil {
		return Uintptr{}
	}
	return NewUintptr(*v)
}

// Set sets the uintptr value.
func (u *Uintptr) Set(v uintptr) {
	u.value = &v
}

// ToPtr returns a *uintptr of the value or nil if not present.
func (u Uintptr) ToPtr() *uintptr {
	if !u.Present() {
		return nil
	}
	v := *u.value
	return &v
}

// Get returns the uintptr value or an error if not present.
func (u Uintptr) Get() (uintptr, error) {
	if !u.Present() {
		var zero uintptr
		return zero, errors.New("value not present")
	}
	return *u.value, nil
}

// MustGet returns the uintptr value or panics if not present.
func (u Uintptr) MustGet() uintptr {
	if !u.Present() {
		panic("value not present")
	}
	return *u.value
}

// Present returns whether or not the value is present.
func (u Uintptr) Present() bool {
	return u.value != nil
}

// OrElse returns the uintptr value or a default value if the value is not present.
func (u Uintptr) OrElse(v uintptr) uintptr {
	if u.Present() {
		return *u.value
	}
	return v
}

// If calls the function f with the value if the value is present.
func (u Uintptr) If(fn func(uintptr)) {
	if u.Present() {
		fn(*u.value)
	}
}

func (u Uintptr) MarshalJSON() ([]byte, error) {
	if u.Present() {
		return json.Marshal(u.value)
	}
	return json.Marshal(nil)
}

func (u *Uintptr) UnmarshalJSON(data []byte) error {

	if string(data) == "null" {
		u.value = nil
		return nil
	}

	var value uintptr

	if err := json.Unmarshal(data, &value); err != nil {
		return err
	}

	u.value = &value
	return nil
}