pub enum VariantData {
    Struct(ThinVec<FieldDef>, bool),
    Tuple(ThinVec<FieldDef>, NodeId),
    Unit(NodeId),
}
Expand description

Fields and constructor ids of enum variants and structs.

Variants§

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Struct(ThinVec<FieldDef>, bool)

Struct variant.

E.g., Bar { .. } as in enum Foo { Bar { .. } }.

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Tuple(ThinVec<FieldDef>, NodeId)

Tuple variant.

E.g., Bar(..) as in enum Foo { Bar(..) }.

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Unit(NodeId)

Unit variant.

E.g., Bar = .. as in enum Foo { Bar = .. }.

Implementations§

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impl VariantData

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pub fn fields(&self) -> &[FieldDef]

Return the fields of this variant.

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pub fn ctor_node_id(&self) -> Option<NodeId>

Return the NodeId of this variant’s constructor, if it has one.

Trait Implementations§

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impl Clone for VariantData

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fn clone(&self) -> VariantData

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 VariantData

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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<__D: Decoder> Decodable<__D> for VariantData

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fn decode(__decoder: &mut __D) -> Self

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impl<__E: Encoder> Encodable<__E> for VariantData

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fn encode(&self, __encoder: &mut __E)

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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.

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes

Size for each variant:

  • Struct: 15 bytes
  • Tuple: 15 bytes
  • Unit: 7 bytes