rustc_parse::errors

Enum TopLevelOrPatternNotAllowed

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pub(crate) enum TopLevelOrPatternNotAllowed {
    LetBinding {
        span: Span,
        sub: Option<TopLevelOrPatternNotAllowedSugg>,
    },
    FunctionParameter {
        span: Span,
        sub: Option<TopLevelOrPatternNotAllowedSugg>,
    },
}

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LetBinding

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FunctionParameter

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impl<'_sess, G> Diagnostic<'_sess, G> for TopLevelOrPatternNotAllowed
where G: EmissionGuarantee,

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fn into_diag(self, dcx: DiagCtxtHandle<'_sess>, level: Level) -> Diag<'_sess, G>

Write out as a diagnostic out of DiagCtxt.

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const ALIGN: Alignment = _

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

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fn collect_and_apply<I, F>(iter: I, f: F) -> R
where I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

Equivalent to f(&iter.collect::<Vec<_>>()).

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type Output = R

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fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>

Creates a filterable data provider with the given name for debugging. Read more
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fn from(t: T) -> T

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fn instrument(self, span: Span) -> Instrumented<Self>

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fn in_current_span(self) -> Instrumented<Self>

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fn into(self) -> U

Calls U::from(self).

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
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const ALIGN: usize = _

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type Init = T

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type Output = T

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type Error = Infallible

The type returned in the event of a conversion error.
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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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where U: UpcastFrom<I, T>,

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fn upcast(self, interner: I) -> U

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Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 40 bytes

Size for each variant:

  • LetBinding: 36 bytes
  • FunctionParameter: 36 bytes