Struct Diagnostics 

pub struct Diagnostics<S = Span> { /* private fields */ }

A basic wrapper around Vec<Diagnostic> with pretty debug printing and utility methods.

Implementations

impl<S> Diagnostics<S>

pub fn new() -> Self

Creates a new empty Diagnostics.

pub fn retain_level(&mut self, level: Level)

Retains only diagnostics as severe as level or more severe.

pub fn has_error(&self) -> bool

Returns if any errors exist in this collection.

pub fn push(&mut self, diagnostic: Diagnostic<S>)

Adds a diagnostic to this collection.

pub fn iter(&self) -> Iter<'_, Diagnostic<S>>

Returns an iterator over the diagnostics.

pub fn len(&self) -> usize

Returns the number of diagnostics in this collection.

pub fn is_empty(&self) -> bool

Returns if this collection is empty.

impl Diagnostics

pub fn try_emit_all(&self) -> Result<(), TokenStream>

Emits all if possible, otherwise returns Err containing a TokenStream of code spanned to emit each error and warning indirectly.

Trait Implementations

impl<S> Debug for Diagnostics<S>

where Diagnostic<S>: Display,

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

Formats the value using the given formatter.

impl<S> Default for Diagnostics<S>

fn default() -> Self

Returns the “default value” for a type.

impl<S> Extend<Diagnostic<S>> for Diagnostics<S>

fn extend<T: IntoIterator<Item = Diagnostic<S>>>(&mut self, iter: T)

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl<S> FromIterator<Diagnostic<S>> for Diagnostics<S>

fn from_iter<T: IntoIterator<Item = Diagnostic<S>>>(iter: T) -> Self

Creates a value from an iterator.

impl<S> IntoIterator for Diagnostics<S>

type Item = Diagnostic<S>

The type of the elements being iterated over.

type IntoIter = IntoIter<<Diagnostics<S> as IntoIterator>::Item>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.