Classifier

Struct Classifier 

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struct Classifier<'src> {
    tokens: PeekIter<'src>,
    in_attribute: bool,
    in_macro: bool,
    in_macro_nonterminal: bool,
    byte_pos: u32,
    file_span: Span,
    src: &'src str,
    decorations: Option<Decorations>,
}
Expand description

Processes program tokens, classifying strings of text by highlighting category (Class).

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§tokens: PeekIter<'src>§in_attribute: bool§in_macro: bool§in_macro_nonterminal: bool§byte_pos: u32§file_span: Span§src: &'src str§decorations: Option<Decorations>

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impl<'src> Classifier<'src>

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fn new( src: &'src str, byte_pos: usize, file_span: Span, decoration_info: Option<&DecorationInfo>, ) -> Self

Takes as argument the source code to HTML-ify and the source code file span which will be used later on by the span_correspondence_map.

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fn get_full_ident_path(&mut self) -> Vec<(TokenKind, usize, usize)>

Concatenate colons and idents as one when possible.

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fn next(&mut self) -> Option<(TokenKind, &'src str, u32)>

Wraps the tokens iteration to ensure that the byte_pos is always correct.

It returns the token’s kind, the token as a string and its byte position in the source string.

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fn new_macro_span( &mut self, text: &'src str, sink: &mut dyn FnMut(Span, Highlight<'src>), before: u32, file_span: Span, )

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fn advance( &mut self, token: TokenKind, text: &'src str, sink: &mut dyn FnMut(Span, Highlight<'src>), before: u32, )

Single step of highlighting. This will classify token, but maybe also a couple of following ones as well.

before is the position of the given token in the source string and is used as “lo” byte in case we want to try to generate a link for this token using the span_correspondence_map.

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fn is_weak_keyword(&mut self, text: &str) -> bool

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fn peek(&mut self) -> Option<TokenKind>

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fn peek_non_trivia(&mut self) -> Option<(TokenKind, &str)>

Auto Trait Implementations§

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impl<'src> Freeze for Classifier<'src>

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impl<'src> RefUnwindSafe for Classifier<'src>

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impl<'src> Send for Classifier<'src>

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impl<'src> Sync for Classifier<'src>

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impl<'src> Unpin for Classifier<'src>

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impl<'src> UnwindSafe for Classifier<'src>

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impl<T> Any for T
where 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 T
where T: ?Sized,

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fn borrow(&self) -> &T

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

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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

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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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> IntoEither for T

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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>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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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 T
where U: TryFrom<T>,

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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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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more

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: 168 bytes