Null

Enum Null 

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pub enum Null<'a> {
    String,
    Boolean,
    Byte,
    Character,
    Short,
    Integer,
    Long,
    Float,
    Double,
    List,
    Of(&'a str),
}
Expand description

Represents Java’s null. Use this to create null Objects. E.g.:

let null_integer = InvocationArg::from(Null::Integer); let null_object = InvocationArg::from(Null::Of(“some.class.Name”));

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String

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Boolean

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Byte

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Character

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Short

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Integer

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Long

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Float

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Double

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List

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Of(&'a str)

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impl<'a> TryFrom<Null<'a>> for InvocationArg

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type Error = J4RsError

The type returned in the event of a conversion error.
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fn try_from(null: Null<'_>) -> Result<InvocationArg>

Performs the conversion.

Auto Trait Implementations§

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impl<'a> Freeze for Null<'a>

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impl<'a> RefUnwindSafe for Null<'a>

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impl<'a> Send for Null<'a>

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impl<'a> Sync for Null<'a>

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impl<'a> Unpin for Null<'a>

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impl<'a> UnwindSafe for Null<'a>

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.