Enum syntax::ast::VariantData [−][src]
pub enum VariantData { Struct(Vec<StructField>, NodeId), Tuple(Vec<StructField>, NodeId), Unit(NodeId), }
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Fields and Ids of enum variants and structs
For enum variants: NodeId
represents both an Id of the variant itself (relevant for all
variant kinds) and an Id of the variant's constructor (not relevant for Struct
-variants).
One shared Id can be successfully used for these two purposes.
Id of the whole enum lives in Item
.
For structs: NodeId
represents an Id of the structure's constructor, so it is not actually
used for Struct
-structs (but still presents). Structures don't have an analogue of "Id of
the variant itself" from enum variants.
Id of the whole struct lives in Item
.
Variants
Struct(Vec<StructField>, NodeId)
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Struct variant.
E.g. Bar { .. }
as in enum Foo { Bar { .. } }
Tuple(Vec<StructField>, NodeId)
🔬 This is a nightly-only experimental API. (rustc_private
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Tuple variant.
E.g. Bar(..)
as in enum Foo { Bar(..) }
Unit(NodeId)
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Unit variant.
E.g. Bar = ..
as in enum Foo { Bar = .. }
Methods
impl VariantData
[src]
impl VariantData
pub fn fields(&self) -> &[StructField]
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pub fn fields(&self) -> &[StructField]
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pub fn id(&self) -> NodeId
[src]
pub fn id(&self) -> NodeId
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pub fn is_struct(&self) -> bool
[src]
pub fn is_struct(&self) -> bool
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pub fn is_tuple(&self) -> bool
[src]
pub fn is_tuple(&self) -> bool
🔬 This is a nightly-only experimental API. (rustc_private
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pub fn is_unit(&self) -> bool
[src]
pub fn is_unit(&self) -> bool
🔬 This is a nightly-only experimental API. (rustc_private
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Trait Implementations
impl Clone for VariantData
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impl Clone for VariantData
fn clone(&self) -> VariantData
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fn clone(&self) -> VariantData
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0[src]
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
impl Encodable for VariantData
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impl Encodable for VariantData
fn encode<__S: Encoder>(&self, s: &mut __S) -> Result<(), __S::Error>
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fn encode<__S: Encoder>(&self, s: &mut __S) -> Result<(), __S::Error>
🔬 This is a nightly-only experimental API. (rustc_private
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impl Decodable for VariantData
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impl Decodable for VariantData
fn decode<__D: Decoder>(d: &mut __D) -> Result<VariantData, __D::Error>
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fn decode<__D: Decoder>(d: &mut __D) -> Result<VariantData, __D::Error>
🔬 This is a nightly-only experimental API. (rustc_private
)
this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
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impl Debug for VariantData
[src]
impl Debug for VariantData
Auto Trait Implementations
impl !Send for VariantData
impl !Send for VariantData
impl !Sync for VariantData
impl !Sync for VariantData