rustc_attr_parsing::session_diagnostics

Enum AttributeParseErrorReason

Source 
pub(crate) enum AttributeParseErrorReason {
    ExpectedNoArgs,
    ExpectedStringLiteral {
        byte_string: Option<Span>,
    },
    ExpectedIntegerLiteral,
    ExpectedAtLeastOneArgument,
    ExpectedSingleArgument,
    ExpectedList,
    UnexpectedLiteral,
    ExpectedNameValue(Option<Symbol>),
    DuplicateKey(Symbol),
    ExpectedSpecificArgument {
        possibilities: Vec<&'static str>,
        strings: bool,
        list: bool,
    },
}

Variants§

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ExpectedNoArgs

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ExpectedStringLiteral

Fields

§byte_string: Option<Span>
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ExpectedIntegerLiteral

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ExpectedAtLeastOneArgument

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ExpectedSingleArgument

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ExpectedList

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UnexpectedLiteral

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ExpectedNameValue(Option<Symbol>)

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DuplicateKey(Symbol)

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ExpectedSpecificArgument

Fields

§possibilities: Vec<&'static str>
§strings: bool
§list: bool

Should we tell the user to write a list when they didn’t?

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const ALIGN: Alignment

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

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

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impl<T> MaybeSendSync for T
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Layout§

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: 32 bytes

Size for each variant:

  • ExpectedNoArgs: 0 bytes
  • ExpectedStringLiteral: 20 bytes
  • ExpectedIntegerLiteral: 0 bytes
  • ExpectedAtLeastOneArgument: 0 bytes
  • ExpectedSingleArgument: 0 bytes
  • ExpectedList: 0 bytes
  • UnexpectedLiteral: 0 bytes
  • ExpectedNameValue: 12 bytes
  • DuplicateKey: 12 bytes
  • ExpectedSpecificArgument: 32 bytes