Struct PatternExtraData

struct PatternExtraData<'tcx> {
    span: Span,
    bindings: Vec<Binding<'tcx>>,
    ascriptions: Vec<Ascription<'tcx>>,
    is_never: bool,
}

Data extracted from a pattern that doesn’t affect which branch is taken. Collected during pattern simplification and not mutated later.

Fields

span: Span

Span of the original pattern.

bindings: Vec<Binding<'tcx>>

Bindings that must be established.

ascriptions: Vec<Ascription<'tcx>>

Types that must be asserted.

is_never: bool

Whether this corresponds to a never pattern.

Implementations

impl<'tcx> PatternExtraData<'tcx>

fn is_empty(&self) -> bool

Trait Implementations

impl<'tcx> Clone for PatternExtraData<'tcx>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'tcx> Debug for PatternExtraData<'tcx>

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

Formats the value using the given formatter.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 64 bytes