Struct Diagnostics

pub struct Diagnostics<T> { /* private fields */ }

Manages diagnostic messages emitted during parsing.

T is usually a parse error type of the language, which contains a message and source span of ’static lifetime.

Implementations

impl<T> Diagnostics<T>

pub fn new() -> Self

Creates new empty diagnostics collector.

pub fn is_empty(&self) -> bool

Returns true if there are no diagnostic messages.

pub fn len(&self) -> usize

Returns the number of diagnostic messages.

pub fn iter(&self) -> Iter<'_, T>

Returns iterator over diagnostic messages.

pub fn add_warning(&mut self, diag: T)

Adds a diagnostic message of warning level.

pub fn extend_with<U>( &mut self, diagnostics: Diagnostics<U>, f: impl FnMut(U) -> T, )

Moves diagnostic messages of different type (such as fileset warnings emitted within file() revset.)

Trait Implementations

impl<T: Debug> Debug for Diagnostics<T>

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

Formats the value using the given formatter.

impl<T> Default for Diagnostics<T>

fn default() -> Self

Returns the “default value” for a type.

impl<'a, T> IntoIterator for &'a Diagnostics<T>

type Item = &'a T

The type of the elements being iterated over.

type IntoIter = Iter<'a, T>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.