miniextendr_macros::rust_conversion_builder

Enum ChoiceLeaf

pub enum ChoiceLeaf {
    MatchArg,
    MatchArgSeveral,
    Literal {
        choices: Vec<String>,
        several: bool,
    },
}

Expand description

Where the innermost value of a layered choice parameter comes from.

Variants§

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MatchArg

A scalar match_arg type (T: MatchArg), decoded with match_arg_from_sexp::<T>.

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MatchArgSeveral

A match_arg + several_ok container (Vec<T> / Box<[T]>), decoded with match_arg_vec_from_sexp::<T>: under Missing<..>, or on the left of an Either<.., R> (#1612).

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Literal

The string type of a choices(...) parameter, decoded with its own TryFromSexp (the R prelude already matched it against the list).

Fields

§choices: Vec<String>

The choice list, which the argument error of an Either<.., R> parameter names.

§several: bool

several_ok: one or more of the choices.

Trait Implementations§

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impl Clone for ChoiceLeaf

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl Debug for ChoiceLeaf

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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impl Eq for ChoiceLeaf

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#[doc(hidden)]
fn assert_fields_are_eq(&self)

🔬This is a nightly-only experimental API. (derive_eq_internals)

1.0.0 (const: unstable) · Source§

#[doc(hidden)]
fn assert_receiver_is_total_eq(&self)

👎Deprecated since 1.95.0:

implementation detail of #[derive(Eq)]

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impl PartialEq for ChoiceLeaf

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fn eq(&self, other: &Self) -> bool

Equality operator ==. Read more

1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more

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impl StructuralPartialEq for ChoiceLeaf

Auto Trait Implementations§

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impl RefUnwindSafe for ChoiceLeaf

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impl UnsafeUnpin for ChoiceLeaf

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impl UnwindSafe for ChoiceLeaf

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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. 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 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> SizeHint for T
where T: ?Sized,

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default fn lower_bound(&self) -> usize

🔬This is a nightly-only experimental API. (core_io_internals)

Returns a lower bound on the number of elements this container-like item contains. For example, an array [u8; 12] could return any value between 0 and 12 inclusively as a correct implementation. Read more

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default fn upper_bound(&self) -> Option<usize>

🔬This is a nightly-only experimental API. (core_io_internals)

Returns an upper bound on the number of elements this container-like item contains if it can be determined, otherwise None. Read more

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final fn size_hint(&self) -> (usize, Option<usize>)

🔬This is a nightly-only experimental API. (core_io_internals)

Returns an estimate for the number of elements this container like type contains. Read more

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