Struct rustc_mir_build::thir::pattern::_match::Slice

struct Slice {
    array_len: Option<u64>,
    kind: SliceKind,
}

A constructor for array and slice patterns.

Fields

array_len: Option<u64>

None if the matched value is a slice, Some(n) if it is an array of size n.

kind: SliceKind

The kind of pattern it is: fixed-length [x, y] or variable length [x, .., y].

Implementations

impl Slice

fn pattern_kind(self) -> SliceKind

Returns what patterns this constructor covers: either fixed-length patterns or variable-length patterns.

fn value_kind(self) -> SliceKind

Returns what values this constructor covers: either values of only one given length, or values of length above a given length. This is different from pattern_kind() because in some cases the pattern only takes into account a subset of the entries of the array, but still only captures values of a given length.

fn arity(self) -> u64

Trait Implementations

impl Clone for Slice

fn clone(&self) -> Slice

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Slice

impl Debug for Slice

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

Formats the value using the given formatter.

impl Eq for Slice

impl PartialEq<Slice> for Slice

fn eq(&self, other: &Slice) -> bool

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

fn ne(&self, other: &Slice) -> bool

This method tests for !=.

impl StructuralEq for Slice

impl StructuralPartialEq for Slice