Struct Diagnostic

pub struct Diagnostic { /* private fields */ }

A struct representing a diagnostic to emit to the end-user as an error.

Implementations

impl Diagnostic

pub fn error<T: Into<String>>(text: T) -> Diagnostic

Generate a Diagnostic from an informational message with no Span

pub fn span_error<T: Into<String>>(span: Span, text: T) -> Diagnostic

Generate a Diagnostic from a Span and an informational message

pub fn spanned_error<T: Into<String>>( node: &dyn ToTokens, text: T, ) -> Diagnostic

Generate a Diagnostic from the span of any tokenizable object and a message

pub fn from_vec(diagnostics: Vec<Diagnostic>) -> Result<(), Diagnostic>

Attempt to generate a Diagnostic from a vector of other Diagnostic instances. If the Vec is empty, returns Ok(()), otherwise returns the new Diagnostic

pub fn panic(&self) -> !

Immediately trigger a panic from this Diagnostic

Trait Implementations

impl Debug for Diagnostic

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

Formats the value using the given formatter.

impl From<Error> for Diagnostic

fn from(err: Error) -> Diagnostic

Converts to this type from the input type.

impl ToTokens for Diagnostic

fn to_tokens(&self, dst: &mut TokenStream)

Write self to the given TokenStream.

fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object.

fn into_token_stream(self) -> TokenStream

where Self: Sized,

Convert self directly into a TokenStream object.