proc_macro2_diagnostics

Struct Diagnostic

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pub struct Diagnostic { /* private fields */ }
Expand description

A structure representing a diagnostic message and associated children messages.

Implementations§

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impl Diagnostic

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

Creates a new diagnostic with the given level and message.

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

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

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

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

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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.

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pub fn span_error<S, T>(self, spans: S, message: T) -> Diagnostic
where 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.

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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.

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pub fn span_warning<S, T>(self, spans: S, message: T) -> Diagnostic
where 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.

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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.

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pub fn span_note<S, T>(self, spans: S, message: T) -> Diagnostic
where 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.

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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.

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pub fn span_help<S, T>(self, spans: S, message: T) -> Diagnostic
where 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.

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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.

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

Return the children diagnostics of self.

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pub fn level(&self) -> Level

Return the level of self.

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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.

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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.

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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.

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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§

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impl Clone for Diagnostic

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fn clone(&self) -> Diagnostic

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Diagnostic

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

Formats the value using the given formatter. Read more
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impl From<Diagnostic> for Error

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fn from(diag: Diagnostic) -> Error

Converts to this type from the input type.
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impl From<Error> for Diagnostic

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fn from(error: Error) -> Diagnostic

Converts to this type from the input type.

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impl<T> Any for T
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Gets the TypeId of self. Read more
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Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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