Enum PropValue

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pub enum PropValue<T> {
    Value(T),
    Default(fn() -> T),
    Required,
}
Expand description

Represents a property that can be required or optional with default value

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Value(T)

Value is present

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Default(fn() -> T)

Value is not present, but there is a default

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Required

Value is required but not present

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impl<T: Clone> PropValue<T>

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pub fn get(&self) -> Result<T, PropValidationError>

Get the value, returning default if needed

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pub fn new(value: T) -> Self

Create a new value

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pub fn new_default(default_fn: fn() -> T) -> Self

Create a new optional value with default

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pub fn new_required() -> Self

Create a new required value

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pub fn set(&mut self, value: T)

Set the value

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pub fn is_set(&self) -> bool

Check if value is present

Auto Trait Implementations§

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impl<T> Freeze for PropValue<T>
where T: Freeze,

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impl<T> RefUnwindSafe for PropValue<T>
where T: RefUnwindSafe,

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impl<T> Send for PropValue<T>
where T: Send,

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impl<T> Sync for PropValue<T>
where T: Sync,

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impl<T> Unpin for PropValue<T>
where T: Unpin,

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impl<T> UnwindSafe for PropValue<T>
where T: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.