Enum RequirementLevel 

pub enum RequirementLevel {
    Must,
    MustNot,
    Should,
    ShouldNot,
    May,
}

Requirement levels from RFC 2119

Variants

Must

Absolute requirement

MustNot

Absolute prohibition

Should

Recommended

ShouldNot

Not recommended

May

Optional

Trait Implementations

impl Clone for RequirementLevel

fn clone(&self) -> RequirementLevel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RequirementLevel

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

Formats the value using the given formatter.

impl Display for RequirementLevel

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

Formats the value using the given formatter.

impl Hash for RequirementLevel

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for RequirementLevel

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for RequirementLevel

impl StructuralPartialEq for RequirementLevel