Enum Level

pub enum Level {
    Bug,
    Fatal,
    Error,
    Warning,
    Note,
    OnceNote,
    Help,
    OnceHelp,
    FailureNote,
    Allow,
}

Diag level.

Variants

Bug

For bugs in the compiler. Manifests as an ICE (internal compiler error) panic.

Its EmissionGuarantee is BugAbort.

Fatal

An error that causes an immediate abort. Used for things like configuration errors, internal overflows, some file operation errors.

Its EmissionGuarantee is FatalAbort.

Error

An error in the code being compiled, which prevents compilation from finishing. This is the most common case.

Its EmissionGuarantee is ErrorGuaranteed.

Warning

A warning about the code being compiled. Does not prevent compilation from finishing.

Its EmissionGuarantee is ().

Note

A message giving additional context. Rare, because notes are more commonly attached to other diagnostics such as errors.

Its EmissionGuarantee is ().

OnceNote

A note that is only emitted once. Rare, mostly used in circumstances relating to lints.

Its EmissionGuarantee is ().

Help

A message suggesting how to fix something. Rare, because help messages are more commonly attached to other diagnostics such as errors.

Its EmissionGuarantee is ().

OnceHelp

A help that is only emitted once. Rare.

Its EmissionGuarantee is ().

FailureNote

Similar to Note, but used in cases where compilation has failed. Rare.

Its EmissionGuarantee is ().

Allow

Only used for lints.

Its EmissionGuarantee is ().

Implementations

impl Level

pub fn to_str(self) -> &'static str

Returns the string representation of the level.

pub fn is_error(self) -> bool

Returns true if this level is an error.

pub const fn style(self) -> Style

Returns the style of this level.

pub const fn color(self) -> Option<Color>

Returns the color of this level.

pub const fn ansi_color(self) -> Option<AnsiColor>

Returns the ANSI color of this level.

Trait Implementations

impl Clone for Level

fn clone(&self) -> Level

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Level

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

Formats the value using the given formatter.

impl Hash for Level

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 Ord for Level

fn cmp(&self, other: &Level) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Level

fn eq(&self, other: &Level) -> 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 PartialOrd for Level

fn partial_cmp(&self, other: &Level) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Level

impl Eq for Level

impl StructuralPartialEq for Level