Enum rustc_pattern_analysis::constructor::VariantVisibility

pub enum VariantVisibility {
    Visible,
    Hidden,
    Empty,
}

Variants

Visible

Variant that doesn’t fit the other cases, i.e. most variants.

Hidden

Variant behind an unstable gate or with the #[doc(hidden)] attribute. It will not be mentioned in diagnostics unless the user mentioned it first.

Empty

Variant that matches no value. E.g. Some::<Option<!>> if the exhaustive_patterns feature is enabled. Like Hidden, it will not be mentioned in diagnostics unless the user mentioned it first.

Trait Implementations

impl Clone for VariantVisibility

fn clone(&self) -> VariantVisibility

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for VariantVisibility

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

Formats the value using the given formatter.

impl Copy for VariantVisibility

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: 1 byte

Size for each variant:

• Visible: 0 bytes
• Hidden: 0 bytes
• Empty: 0 bytes