pub enum SupportsFeature {
    Declaration(Box<Declaration>),
    Function(Function),
}

Variants§

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Declaration(Box<Declaration>)

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Function(Function)

Implementations§

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impl SupportsFeature

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pub const fn is_declaration(&self) -> bool

Returns true if self is of variant Declaration.

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pub fn as_declaration(&self) -> Option<&Box<Declaration>>

Returns Some if self is a reference of variant Declaration, and None otherwise.

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pub fn as_mut_declaration(&mut self) -> Option<&mut Box<Declaration>>

Returns Some if self is a mutable reference of variant Declaration, and None otherwise.

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pub fn expect_declaration(self) -> Box<Declaration>
where Self: Debug,

Unwraps the value, yielding the content of Declaration.

Panics

Panics if the value is not Declaration, with a panic message including the content of self.

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pub fn declaration(self) -> Option<Box<Declaration>>

Returns Some if self is of variant Declaration, and None otherwise.

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pub const fn is_function(&self) -> bool

Returns true if self is of variant Function.

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pub fn as_function(&self) -> Option<&Function>

Returns Some if self is a reference of variant Function, and None otherwise.

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pub fn as_mut_function(&mut self) -> Option<&mut Function>

Returns Some if self is a mutable reference of variant Function, and None otherwise.

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pub fn expect_function(self) -> Function
where Self: Debug,

Unwraps the value, yielding the content of Function.

Panics

Panics if the value is not Function, with a panic message including the content of self.

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pub fn function(self) -> Option<Function>

Returns Some if self is of variant Function, and None otherwise.

Trait Implementations§

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impl Clone for SupportsFeature

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fn clone(&self) -> SupportsFeature

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for SupportsFeature

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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 EqIgnoreSpan for SupportsFeature

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

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impl From<Box<Declaration>> for SupportsFeature

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fn from(v: Box<Declaration>) -> Self

Converts to this type from the input type.
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impl From<Function> for SupportsFeature

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fn from(v: Function) -> Self

Converts to this type from the input type.
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impl From<SupportsFeature> for SupportsInParens

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fn from(v: SupportsFeature) -> Self

Converts to this type from the input type.
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impl Hash for SupportsFeature

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for SupportsFeature

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Spanned for SupportsFeature

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fn span(&self) -> Span

Get span of self.
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fn span_lo(&self) -> BytePos

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fn span_hi(&self) -> BytePos

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impl Eq for SupportsFeature

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impl StructuralEq for SupportsFeature

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impl StructuralPartialEq for SupportsFeature

Auto Trait Implementations§

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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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impl<T> Send for T
where T: ?Sized,

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impl<T> Sync for T
where T: ?Sized,