Documentation
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Index ¶
- type ComparableOptional
- type FlattenOptional
- type Optional
- func (self Optional[T]) And(opt Optional[T]) Optional[T]
- func (self Optional[T]) AndThen(f func(T) Optional[T]) Optional[T]
- func (self Optional[T]) CloneBy(clone func(T) T) Optional[T]
- func (self Optional[T]) Filter(fn func(T) bool) Optional[T]
- func (self Optional[T]) IfPresent(consume func(T))
- func (self Optional[T]) IsNone() bool
- func (self Optional[T]) IsSome() bool
- func (self Optional[T]) IsSomeAnd(predicate func(T) bool) bool
- func (self Optional[T]) Map(f func(T) T) Optional[T]
- func (self Optional[T]) MapOr(defaultValue T, f func(T) T) T
- func (self Optional[T]) MapOrElse(df func() T, f func(T) T) T
- func (self Optional[T]) MarshalJSON() ([]byte, error)
- func (self Optional[T]) Or(opt Optional[T]) Optional[T]
- func (self Optional[T]) OrElse(f func() Optional[T]) Optional[T]
- func (self Optional[T]) String() string
- func (self *Optional[T]) UnmarshalJSON(v []byte) error
- func (self Optional[T]) Value() T
- func (self Optional[T]) ValueOr(defaultValue T) T
- func (self Optional[T]) ValueOrElse(defaultFunc func() T) T
- func (self Optional[T]) ValueOrZero() T
- func (self Optional[T]) Xor(opt Optional[T]) Optional[T]
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type ComparableOptional ¶ added in v0.3.0
type ComparableOptional[T comparable] struct { Optional[T] }
func (ComparableOptional[T]) Eq ¶ added in v0.3.0
func (self ComparableOptional[T]) Eq(other ComparableOptional[T]) bool
func (ComparableOptional[T]) Ne ¶ added in v0.3.0
func (self ComparableOptional[T]) Ne(other ComparableOptional[T]) bool
type FlattenOptional ¶ added in v0.3.0
func (FlattenOptional[T]) Flatten ¶ added in v0.3.0
func (self FlattenOptional[T]) Flatten() Optional[T]
type Optional ¶
type Optional[T any] struct { // contains filtered or unexported fields }
Optional is a value that may or may not be present.
func Some ¶
Some returns an Optional from a value. Oops!! We can't restrict T is not pointer type. Holy shit!!!
func (Optional[T]) AndThen ¶ added in v0.2.0
AndThen returns None if the option is None, otherwise calls f with the wrapped value and returns the result.
func (Optional[T]) IsSomeAnd ¶ added in v0.2.0
IsSomeAnd returns true if the Optional is Some and satisfies the given predicate.
func (Optional[T]) Map ¶
Map returns None if the option is None, otherwise calls the given function and returns the result.
func (Optional[T]) MapOr ¶ added in v0.2.0
func (self Optional[T]) MapOr(defaultValue T, f func(T) T) T
MapOr returns None if the option is None, otherwise calls the given function and returns the result.
func (Optional[T]) MapOrElse ¶ added in v0.2.0
func (self Optional[T]) MapOrElse(df func() T, f func(T) T) T
MapOrElse returns None if the option is None, otherwise calls the given function and returns the result.
func (Optional[T]) MarshalJSON ¶ added in v0.3.0
func (Optional[T]) Or ¶
Or returns the given opt if the option is None, otherwise returns the option.
func (Optional[T]) OrElse ¶
OrElse returns the Optional if it contains a value, otherwise calls f and returns the result.
func (*Optional[T]) UnmarshalJSON ¶ added in v0.3.0
func (Optional[T]) Value ¶
func (self Optional[T]) Value() T
Value returns the value of the Optional.
func (Optional[T]) ValueOr ¶ added in v0.2.0
func (self Optional[T]) ValueOr(defaultValue T) T
ValueOr returns the Optional if it is Some, otherwise returns the given default value.
func (Optional[T]) ValueOrElse ¶ added in v0.2.0
func (self Optional[T]) ValueOrElse(defaultFunc func() T) T
ValueOrElse returns the Optional if it is Some, otherwise returns the given default value.
func (Optional[T]) ValueOrZero ¶ added in v0.2.0
func (self Optional[T]) ValueOrZero() T
ValueOrZero returns the Optional if it is Some, otherwise returns the zero value of the type.
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