Enum PatConstKind 

enum PatConstKind {
    Bool,
    IntOrChar,
    Float,
    Other,
}

Sub-classification of TestableCase::Constant, which helps to avoid some redundant ad-hoc checks when preparing and lowering tests.

Variants

Bool

The primitive bool type, which is like an integer but simpler, having only two values.

IntOrChar

Primitive unsigned/signed integer types, plus char. These types interact nicely with SwitchInt.

Float

Floating-point primitives, e.g. f32, f64. These types don’t support SwitchInt and require an equality test, but can also interact with range pattern tests.

Other

Any other constant-pattern is usually tested via some kind of equality check. Types that might be encountered here include:

• &str
• raw pointers derived from integer values
• pattern types, e.g. pattern_type!(u32 is 1..)

Trait Implementations

impl Clone for PatConstKind

fn clone(&self) -> PatConstKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PatConstKind

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: 1 byte

Size for each variant:

• Bool: 0 bytes
• IntOrChar: 0 bytes
• Float: 0 bytes
• Other: 0 bytes