Struct proc_macro::Diagnostic

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pub struct Diagnostic { /* private fields */ }
🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)
Expand description

A structure representing a diagnostic message and associated children messages.

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impl Diagnostic

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

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

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) -> Diagnosticwhere
S: MultiSpan,
T: Into<String>,

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

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

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

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

Adds a new child diagnostics message to self with the Level::Error level, and the given spans and message.

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

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

Adds a new child diagnostic message to self with the Level::Error level, and the given message.

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

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

Adds a new child diagnostics message to self with the Level::Warning level, and the given spans and message.

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

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

Adds a new child diagnostic message to self with the Level::Warning level, and the given message.

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

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

Adds a new child diagnostics message to self with the Level::Note level, and the given spans and message.

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

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

Adds a new child diagnostic message to self with the Level::Note level, and the given message.

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

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

Adds a new child diagnostics message to self with the Level::Help level, and the given spans and message.

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

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

Adds a new child diagnostic message to self with the Level::Help level, and the given message.

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pub fn level(&self) -> Level

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

Returns the diagnostic level for self.

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pub fn set_level(&mut self, level: Level)

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

Sets the level in self to level.

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pub fn message(&self) -> &str

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

Returns the message in self.

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pub fn set_message<T: Into<String>>(&mut self, message: T)

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

Sets the message in self to message.

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pub fn spans(&self) -> &[Span]

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

Returns the Spans in self.

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pub fn set_spans<S: MultiSpan>(&mut self, spans: S)

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

Sets the Spans in self to spans.

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pub fn children(&self) -> Children<'_>

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

Returns an iterator over the children diagnostics of self.

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pub fn emit(self)

🔬This is a nightly-only experimental API. (proc_macro_diagnostic #54140)

Emit the diagnostic.

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
1.0.0 · source§

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

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere
U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for Twhere
T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.