Struct proc_macro2_diagnostics::Diagnostic

pub struct Diagnostic { /* private fields */ }

A structure representing a diagnostic message and associated children messages.

Implementations

impl Diagnostic

pub fn new<T: Into<String>>(level: Level, message: T) -> Diagnostic

Creates a new diagnostic with the given level and message.

pub fn spanned<S, T>(spans: S, level: Level, message: T) -> Diagnosticwhere S: MultiSpan, T: Into<String>,

Creates a new diagnostic with the given level and message pointing to the given set of spans.

pub fn spanned_child<S, T>( self, spans: S, level: Level, message: T ) -> Diagnosticwhere S: MultiSpan, T: Into<String>,

Adds a new child diagnostic message to self with the level and the given spans and message.

pub fn child<T: Into<String>>(self, level: Level, message: T) -> Diagnostic

Adds a new child diagnostic message to self with level and the given message.

pub fn span_error<S, T>(self, spans: S, message: T) -> Diagnosticwhere S: MultiSpan, T: Into<String>,

Adds a new child diagnostic message to self with the level identified by this method’s name with the given spans and message.

pub fn error<T: Into<String>>(self, message: T) -> Diagnostic

Adds a new child diagnostic message to self with the level identified by this method’s name with the given message.

pub fn span_warning<S, T>(self, spans: S, message: T) -> Diagnosticwhere S: MultiSpan, T: Into<String>,

Adds a new child diagnostic message to self with the level identified by this method’s name with the given spans and message.

pub fn warning<T: Into<String>>(self, message: T) -> Diagnostic

Adds a new child diagnostic message to self with the level identified by this method’s name with the given message.

pub fn span_note<S, T>(self, spans: S, message: T) -> Diagnosticwhere S: MultiSpan, T: Into<String>,

Adds a new child diagnostic message to self with the level identified by this method’s name with the given spans and message.

pub fn note<T: Into<String>>(self, message: T) -> Diagnostic

Adds a new child diagnostic message to self with the level identified by this method’s name with the given message.

pub fn span_help<S, T>(self, spans: S, message: T) -> Diagnosticwhere S: MultiSpan, T: Into<String>,

Adds a new child diagnostic message to self with the level identified by this method’s name with the given spans and message.

pub fn help<T: Into<String>>(self, message: T) -> Diagnostic

Adds a new child diagnostic message to self with the level identified by this method’s name with the given message.

pub fn children(&self) -> impl Iterator<Item = &Diagnostic>

Return the children diagnostics of self.

pub fn level(&self) -> Level

Return the level of self.

pub fn emit_as_item_tokens(self) -> TokenStream

Emit tokens, suitable for item contexts, to generate a comple-time diagnostic corresponding to self. On nightly, this directly emits the error and returns an empty token stream.

pub fn emit_as_item_tokens_or(self, default: TokenStream) -> TokenStream

Emit tokens, suitable for item contexts, to generate a comple-time diagnostic corresponding to self. On nightly, this directly emits the error and returns default.

pub fn emit_as_expr_tokens(self) -> TokenStream

Emit tokens, suitable for expression contexts, to generate a comple-time diagnostic corresponding to self. On nightly, this directly emits the error and returns a () token stream.

pub fn emit_as_expr_tokens_or(self, default: TokenStream) -> TokenStream

Emit tokens, suitable for expressioon contexts, to generate a comple-time diagnostic corresponding to self. On nightly, this directly emits the error and returns default.

Trait Implementations

impl Clone for Diagnostic

fn clone(&self) -> Diagnostic

Returns a copy 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 From<Diagnostic> for Diagnostic

fn from(diag: Diagnostic) -> Diagnostic

Converts to this type from the input type.

impl From<Diagnostic> for Error

fn from(diag: Diagnostic) -> Error

Converts to this type from the input type.

impl From<Error> for Diagnostic

fn from(error: Error) -> Diagnostic

Converts to this type from the input type.