Enum rustc_ast::ast::VariantData

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

Expand description

Fields and constructor ids of enum variants and structs.

Variants

`Struct(Vec<FieldDef>, bool)`

Struct variant.

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

`Tuple(Vec<FieldDef>, NodeId)`

Tuple variant.

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

`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_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

1.0.0 · source

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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fn encode(&self, encoder: &mut E) -> Result<(), <__E as Encoder>::Error>

Auto Trait Implementations

impl !RefUnwindSafe for VariantData

impl !UnwindSafe for VariantData

Blanket Implementations

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

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pub 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,

const: unstable · source

pub 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,

const: unstable · source

pub 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

const: unstable · source

pub fn from(t: T) -> T

Performs the conversion.

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

const: unstable · source

pub fn into(self) -> U

Performs the conversion.

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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pub fn clone_into(&self, target: &mut T)

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

Uses borrowed data to replace owned data, usually by cloning. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::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: 32 bytes

Size for each variant:

Struct: 31 bytes
Tuple: 31 bytes
Unit: 7 bytes

Enum rustc_ast::ast::VariantData

Variants

Struct(Vec<FieldDef>, bool)

Tuple(Vec<FieldDef>, NodeId)

Unit(NodeId)

Implementations

impl VariantData

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

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

Trait Implementations

impl Clone for VariantData

fn clone(&self) -> VariantData

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

impl Debug for VariantData

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

impl<__D: Decoder> Decodable<__D> for VariantData

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

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

fn encode(&self, __encoder: &mut __E) -> Result<(), <__E as Encoder>::Error>

Auto Trait Implementations

impl !RefUnwindSafe for VariantData

impl !Send for VariantData

impl !Sync for VariantData

impl Unpin for VariantData

impl !UnwindSafe for VariantData

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

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

pub fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

pub fn to_owned(&self) -> T

pub fn clone_into(&self, target: &mut T)

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

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

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

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

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Layout

`Struct(Vec<FieldDef>, bool)`

`Tuple(Vec<FieldDef>, NodeId)`

`Unit(NodeId)`

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

impl<D: Decoder> Decodable<D> for VariantData

fn decode(decoder: &mut D) -> Self

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

fn encode(&self, encoder: &mut E) -> Result<(), <__E as Encoder>::Error>

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

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

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

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

impl<T> ToOwned for T where
T: Clone,

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

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