Struct Diagnostic 

pub struct Diagnostic { /* private fields */ }

A compiler diagnostic (error, warning, note, or help message).

Immutable once built. Create instances via Builder or the free functions in crate::mark.

Implementations

impl Diagnostic

pub fn span(&self) -> Span

Returns the joined span of this diagnostic, or call_site if no spans are attached.

pub fn level(&self) -> Level

Returns the highest severity level among this diagnostic and its children.

pub fn iter(&self) -> impl Iterator<Item = &Self>

pub fn walk(&self) -> Walk<'_>

pub fn is_error(&self) -> bool

Returns true if the highest severity level is Level::Error or above.

pub fn is_empty(&self) -> bool

Returns true if no level and no children are set.

pub fn len(&self) -> usize

Returns the number of direct children.

pub fn emit_as_item_tokens(self) -> TokenStream

pub fn emit_as_expr_tokens(self) -> TokenStream

pub fn emit(self) -> TokenStream

Emits all accumulated diagnostics as compiler messages.

Trait Implementations

impl Clone for Diagnostic

fn clone(&self) -> Diagnostic

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Diagnostic

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

Formats the value using the given formatter.

impl Default for Diagnostic

fn default() -> Diagnostic

Returns the “default value” for a type.

impl Display for Diagnostic

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

Formats the value using the given formatter.

impl From<Diagnostic> for Builder

fn from(d: Diagnostic) -> Self

Converts to this type from the input type.

impl From<Diagnostic> for Diagnostic

Available on crate feature diagnostics only.

fn from(value: Diagnostic) -> Self

Converts to this type from the input type.

impl From<Diagnostic> for Output

fn from(diagnostic: Diagnostic) -> Self

Converts to this type from the input type.

impl From<Error> for Diagnostic

fn from(error: Error) -> Self

Converts to this type from the input type.

impl From<Output> for Diagnostic

fn from(o: Output) -> Self

Converts to this type from the input type.

impl<'a> IntoIterator for &'a Diagnostic

type Item = &'a Diagnostic

The type of the elements being iterated over.

type IntoIter = Iter<'a, Diagnostic>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl IntoIterator for Diagnostic

type Item = Diagnostic

The type of the elements being iterated over.

type IntoIter = IntoIter<Diagnostic>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.