Enum Role 

#[non_exhaustive]
pub enum Role {
    Plain,
    Heading,
    Success,
    Warning,
    Error,
    Value,
    Muted,
    Token,
    Id,
}

Available on crate feature document only.

What a Span means. A Theme chooses the style that draws each role.

The enum is #[non_exhaustive]: a match needs a wildcard arm.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Plain

Content with no style of its own. A heading or a token column gives a plain span its own role.

Heading

The text of a heading, a section title, or a table header.

Success

A successful outcome.

Warning

A warning.

Error

An error.

Value

A value or a metavar, such as <FILE>.

Muted

Secondary information that should not draw the eye.

Token

A flag, command, field name, or other literal the user types or reads.

Id

The identifier of a row, patch, package, or other domain record.

Trait Implementations

impl Clone for Role

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Role

impl Debug for Role

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

Formats the value using the given formatter.

impl Default for Role

fn default() -> Self

Returns the “default value” for a type.

impl Eq for Role

impl PartialEq for Role

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Role