Enum rustc::hir::PatKind

pub enum PatKind {
    Wild,
    Binding(BindingMode, DefId, Spanned<Name>, Option<P<Pat>>),
    Struct(QPath, HirVec<Spanned<FieldPat>>, bool),
    TupleStruct(QPath, HirVec<P<Pat>>, Option<usize>),
    Path(QPath),
    Tuple(HirVec<P<Pat>>, Option<usize>),
    Box(P<Pat>),
    Ref(P<Pat>, Mutability),
    Lit(P<Expr>),
    Range(P<Expr>, P<Expr>, RangeEnd),
    Slice(HirVec<P<Pat>>, Option<P<Pat>>, HirVec<P<Pat>>),
}

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

Variants

Wild

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

Represents a wildcard pattern (_)

Binding(BindingMode, DefId, Spanned<Name>, Option<P<Pat>>)

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

A fresh binding ref mut binding @ OPT_SUBPATTERN. The DefId is for the definition of the variable being bound.

Struct(QPath, HirVec<Spanned<FieldPat>>, bool)

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

A struct or struct variant pattern, e.g. Variant {x, y, ..}. The bool is true in the presence of a ...

TupleStruct(QPath, HirVec<P<Pat>>, Option<usize>)

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

A tuple struct/variant pattern Variant(x, y, .., z). If the .. pattern fragment is present, then Option<usize> denotes its position. 0 <= position <= subpats.len()

Path(QPath)

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

A path pattern for an unit struct/variant or a (maybe-associated) constant.

Tuple(HirVec<P<Pat>>, Option<usize>)

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

A tuple pattern (a, b). If the .. pattern fragment is present, then Option<usize> denotes its position. 0 <= position <= subpats.len()

Box(P<Pat>)

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

A box pattern

Ref(P<Pat>, Mutability)

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

A reference pattern, e.g. &mut (a, b)

Lit(P<Expr>)

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

A literal

Range(P<Expr>, P<Expr>, RangeEnd)

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

A range pattern, e.g. 1...2 or 1..2

Slice(HirVec<P<Pat>>, Option<P<Pat>>, HirVec<P<Pat>>)

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

[a, b, ..i, y, z] is represented as: PatKind::Slice(box [a, b], Some(i), box [y, z])

Trait Implementations

impl Clone for PatKind

fn clone(&self) -> PatKind

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq for PatKind

fn eq(&self, __arg_0: &PatKind) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &PatKind) -> bool

This method tests for !=.

impl Eq for PatKind

impl Encodable for PatKind

fn encode<__S: Encoder>(&self, __arg_0: &mut __S) -> Result<(), __S::Error>

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

deprecated in favor of rustc-serialize on crates.io

impl Decodable for PatKind

fn decode<__D: Decoder>(__arg_0: &mut __D) -> Result<PatKind, __D::Error>

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

deprecated in favor of rustc-serialize on crates.io

impl Hash for PatKind

fn hash<__H: Hasher>(&self, __arg_0: &mut __H)

Feeds this value into the state given, updating the hasher as necessary.

fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher

Feeds a slice of this type into the state provided.

impl Debug for PatKind

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.