Enum rustc_const_eval::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: ConstVal<'tcx>,
    },
    Range {
        lo: ConstVal<'tcx>,
        hi: ConstVal<'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)

Variants

Wild

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

Binding

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

x, ref x, x @ P, etc

Fields of Binding

mutability: Mutability	🔬 This is a nightly-only experimental API. (rustc_private)
name: Name	🔬 This is a nightly-only experimental API. (rustc_private)
mode: BindingMode<'tcx>	🔬 This is a nightly-only experimental API. (rustc_private)
var: NodeId	🔬 This is a nightly-only experimental API. (rustc_private)
ty: Ty<'tcx>	🔬 This is a nightly-only experimental API. (rustc_private)
subpattern: Option<Pattern<'tcx>>	🔬 This is a nightly-only experimental API. (rustc_private)

Variant

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

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)
substs: &'tcx Substs<'tcx>	🔬 This is a nightly-only experimental API. (rustc_private)
variant_index: usize	🔬 This is a nightly-only experimental API. (rustc_private)
subpatterns: Vec<FieldPattern<'tcx>>	🔬 This is a nightly-only experimental API. (rustc_private)

Leaf

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

(...), 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)

Deref

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

box P, &P, &mut P, etc

Fields of Deref

subpattern: Pattern<'tcx>

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

Constant

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

Fields of Constant

value: ConstVal<'tcx>

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

Range

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

Fields of Range

lo: ConstVal<'tcx>	🔬 This is a nightly-only experimental API. (rustc_private)
hi: ConstVal<'tcx>	🔬 This is a nightly-only experimental API. (rustc_private)
end: RangeEnd	🔬 This is a nightly-only experimental API. (rustc_private)

Slice

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

matches against a slice, checking the length and extracting elements

Fields of Slice

prefix: Vec<Pattern<'tcx>>	🔬 This is a nightly-only experimental API. (rustc_private)
slice: Option<Pattern<'tcx>>	🔬 This is a nightly-only experimental API. (rustc_private)
suffix: Vec<Pattern<'tcx>>	🔬 This is a nightly-only experimental API. (rustc_private)

Array

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

fixed match against an array, irrefutable

Fields of Array

prefix: Vec<Pattern<'tcx>>	🔬 This is a nightly-only experimental API. (rustc_private)
slice: Option<Pattern<'tcx>>	🔬 This is a nightly-only experimental API. (rustc_private)
suffix: Vec<Pattern<'tcx>>	🔬 This is a nightly-only experimental API. (rustc_private)

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, __arg_0: &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)

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

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