Enum AttributeKey 

pub enum AttributeKey {
    PrimaryKey,
    ForeignKey,
    UniqueKey,
}

Recognised key modifiers on an Attribute. Mermaid’s grammar admits exactly these three; arbitrary other modifiers are rejected at parse time so typos surface instead of silently disappearing.

Variants

PrimaryKey

Primary key (PK).

ForeignKey

Foreign key (FK).

UniqueKey

Unique key (UK).

Trait Implementations

impl Clone for AttributeKey

fn clone(&self) -> AttributeKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AttributeKey

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

Formats the value using the given formatter.

impl PartialEq for AttributeKey

fn eq(&self, other: &AttributeKey) -> 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 Copy for AttributeKey

impl Eq for AttributeKey

impl StructuralPartialEq for AttributeKey