Enum rustc_mir::hair::pattern::PatternKind

pub enum PatternKind<'tcx> {
    Wild,
    Binding {
        mutability: Mutability,
        name: Name,
        mode: BindingMode<'tcx>,
        var: NodeId,
        ty: Ty<'tcx>,
        subpattern: Option<Pattern<'tcx>>,
    },
    Variant {
        adt_def: &'tcx AdtDef,
        substs: &'tcx Substs<'tcx>,
        variant_index: usize,
        subpatterns: Vec<FieldPattern<'tcx>>,
    },
    Leaf {
        subpatterns: Vec<FieldPattern<'tcx>>,
    },
    Deref {
        subpattern: Pattern<'tcx>,
    },
    Constant {
        value: &'tcx Const<'tcx>,
    },
    Range {
        lo: &'tcx Const<'tcx>,
        hi: &'tcx Const<'tcx>,
        end: RangeEnd,
    },
    Slice {
        prefix: Vec<Pattern<'tcx>>,
        slice: Option<Pattern<'tcx>>,
        suffix: Vec<Pattern<'tcx>>,
    },
    Array {
        prefix: Vec<Pattern<'tcx>>,
        slice: Option<Pattern<'tcx>>,
        suffix: Vec<Pattern<'tcx>>,
    },
}

🔬 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 instead?

Variants

Wild

🔬 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 instead?

Binding

🔬 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 instead?

x, ref x, x @ P, etc

Fields of Binding

mutability: Mutability	🔬 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 instead?
name: Name	🔬 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 instead?
mode: BindingMode<'tcx>	🔬 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 instead?
var: NodeId	🔬 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 instead?
ty: Ty<'tcx>	🔬 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 instead?
subpattern: Option<Pattern<'tcx>>	🔬 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 instead?

Variant

🔬 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 instead?

Foo(...) or Foo{...} or Foo, where Foo is a variant name from an adt with >1 variants

Fields of Variant

adt_def: &'tcx AdtDef	🔬 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 instead?
substs: &'tcx Substs<'tcx>	🔬 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 instead?
variant_index: usize	🔬 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 instead?
subpatterns: Vec<FieldPattern<'tcx>>	🔬 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 instead?

Leaf

🔬 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 instead?

(...), Foo(...), Foo{...}, or Foo, where Foo is a variant name from an adt with 1 variant

Fields of Leaf

subpatterns: Vec<FieldPattern<'tcx>>

🔬 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 instead?

Deref

🔬 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 instead?

box P, &P, &mut P, etc

Fields of Deref

subpattern: Pattern<'tcx>

🔬 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 instead?

Constant

🔬 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 instead?

Fields of Constant

value: &'tcx Const<'tcx>

🔬 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 instead?

Range

🔬 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 instead?

Fields of Range

lo: &'tcx Const<'tcx>	🔬 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 instead?
hi: &'tcx Const<'tcx>	🔬 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 instead?
end: RangeEnd	🔬 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 instead?

Slice

🔬 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 instead?

matches against a slice, checking the length and extracting elements. irrefutable when there is a slice pattern and both prefix and suffix are empty. e.g. &[ref xs..].

Fields of Slice

prefix: Vec<Pattern<'tcx>>	🔬 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 instead?
slice: Option<Pattern<'tcx>>	🔬 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 instead?
suffix: Vec<Pattern<'tcx>>	🔬 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 instead?

Array

🔬 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 instead?

fixed match against an array, irrefutable

Fields of Array

prefix: Vec<Pattern<'tcx>>	🔬 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 instead?
slice: Option<Pattern<'tcx>>	🔬 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 instead?
suffix: Vec<Pattern<'tcx>>	🔬 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 instead?

Trait Implementations

impl<'tcx> Clone for PatternKind<'tcx>

fn clone(&self) -> PatternKind<'tcx>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'tcx> Debug for PatternKind<'tcx>

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

Formats the value using the given formatter.

impl<'tcx> PatternFoldable<'tcx> for PatternKind<'tcx>

fn fold_with<F: PatternFolder<'tcx>>(&self, folder: &mut F) -> Self

🔬 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 instead?

fn super_fold_with<F: PatternFolder<'tcx>>(&self, folder: &mut F) -> Self

🔬 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 instead?