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refactor(typeutils)!: refactor to pointer receivers

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This commit is contained in:
Levente Batuska
2024-10-13 21:55:08 +02:00
parent 62ff01d6b8
commit dffea122de
2 changed files with 115 additions and 40 deletions
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71
typeutils/optional.go
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@@ -1,5 +1,7 @@
package typeutils
import "github.com/lbatuska/goutils/assert"
// CTORS BEGIN
func Some[T any](value T) Optional[T] {
return Optional[T]{value, true}
@@ -16,44 +18,68 @@ func None_t[T any](T) Optional[T] {
// CTORS END
func (opt Optional[T]) IsSome() bool { return opt.present }
func (opt Optional[T]) IsNone() bool { return !opt.present }
func (opt *Optional[T]) IsSome() bool {
if opt == nil {
return false
}
return opt.present
}
func (opt Optional[T]) HasValue() bool { return opt.IsSome() }
func (opt *Optional[T]) IsNone() bool {
if opt == nil {
return true
}
return !opt.present
}
func (opt *Optional[T]) HasValue() bool {
if opt == nil {
return false
}
return opt.IsSome()
}
// UNWRAPPABLE INTERFACE BEGIN
func (opt Optional[T]) Expect(msg string) T {
func (opt *Optional[T]) Expect(msg string) T {
assert.NotNil(opt)
if opt.present {
return opt.value
}
panic(msg)
}
func (opt Optional[T]) Unwrap() T {
func (opt *Optional[T]) Unwrap() T {
assert.NotNil(opt)
if opt.present {
return opt.value
}
panic("Tried unwrapping an Optional that did not have a value!")
}
func (opt Optional[T]) UnwrapOr(val T) T {
if opt.present {
return opt.value
func (opt *Optional[T]) UnwrapOr(val T) T {
if opt != nil {
if opt.present {
return opt.value
}
}
return val
}
func (opt Optional[T]) UnwrapOrDefault() T {
if opt.present {
return opt.value
func (opt *Optional[T]) UnwrapOrDefault() T {
if opt != nil {
if opt.present {
return opt.value
}
}
var res T
return res
}
func (opt Optional[T]) UnwrapOrElse(f func() T) T {
if opt.present {
return opt.value
func (opt *Optional[T]) UnwrapOrElse(f func() T) T {
if opt != nil {
if opt.present {
return opt.value
}
}
return f()
}
@@ -61,17 +87,22 @@ func (opt Optional[T]) UnwrapOrElse(f func() T) T {
// UNWRAPPABLE INTERFACE END
// transforms Some(v) to Ok(v), and None to Err(err)
func (opt Optional[T]) OkOr(err error) Result[T] {
if opt.present {
return Ok(opt.value)
func (opt *Optional[T]) OkOr(err error) Result[T] {
if opt != nil {
if opt.present {
return Ok(opt.value)
}
}
return Err[T](err)
}
// transforms Some(v) to Ok(v), and None to a value of Err using the provided function
func (opt Optional[T]) OkOrElse(f func() error) Result[T] {
if opt.present {
return Ok(opt.value)
func (opt *Optional[T]) OkOrElse(f func() error) Result[T] {
if opt != nil {
if opt.present {
return Ok(opt.value)
}
}
return Err[T](f())
}