Struct rustc_parse::lexer::StringReader

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struct StringReader<'psess, 'src> {
    psess: &'psess ParseSess,
    start_pos: BytePos,
    pos: BytePos,
    src: &'src str,
    cursor: Cursor<'src>,
    override_span: Option<Span>,
    nbsp_is_whitespace: bool,
    last_lifetime: Option<Span>,
}

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§psess: &'psess ParseSess§start_pos: BytePos

Initial position, read-only.

§pos: BytePos

The absolute offset within the source_map of the current character.

§src: &'src str

Source text to tokenize.

§cursor: Cursor<'src>

Cursor for getting lexer tokens.

§override_span: Option<Span>§nbsp_is_whitespace: bool

When a “unknown start of token: \u{a0}” has already been emitted earlier in this file, it’s safe to treat further occurrences of the non-breaking space character as whitespace.

§last_lifetime: Option<Span>

Track the Span for the leading ' of the last lifetime. Used for diagnostics to detect possible typo where " was meant.

Implementations§

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impl<'psess, 'src> StringReader<'psess, 'src>

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pub fn dcx(&self) -> &'psess DiagCtxt

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fn mk_sp(&self, lo: BytePos, hi: BytePos) -> Span

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fn next_token(&mut self) -> (Token, bool)

Returns the next token, paired with a bool indicating if the token was preceded by whitespace.

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fn ident(&self, start: BytePos) -> TokenKind

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fn lint_unicode_text_flow(&self, start: BytePos)

Detect usages of Unicode codepoints changing the direction of the text on screen and loudly complain about it.

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fn cook_doc_comment( &self, content_start: BytePos, content: &str, comment_kind: CommentKind, doc_style: DocStyle ) -> TokenKind

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fn cook_lexer_literal( &self, start: BytePos, end: BytePos, kind: LiteralKind ) -> (LitKind, Symbol)

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fn src_index(&self, pos: BytePos) -> usize

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fn str_from(&self, start: BytePos) -> &'src str

Slice of the source text from start up to but excluding self.pos, meaning the slice does not include the character self.ch.

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fn symbol_from_to(&self, start: BytePos, end: BytePos) -> Symbol

As symbol_from, with an explicit endpoint.

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fn str_from_to(&self, start: BytePos, end: BytePos) -> &'src str

Slice of the source text spanning from start up to but excluding end.

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fn str_from_to_end(&self, start: BytePos) -> &'src str

Slice of the source text spanning from start until the end

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fn report_raw_str_error(&self, start: BytePos, prefix_len: u32) -> !

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fn report_non_started_raw_string(&self, start: BytePos, bad_char: char) -> !

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fn report_unterminated_raw_string( &self, start: BytePos, n_hashes: u32, possible_offset: Option<u32>, found_terminators: u32 ) -> !

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fn report_unterminated_block_comment( &self, start: BytePos, doc_style: Option<DocStyle> )

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fn report_unknown_prefix(&self, start: BytePos)

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fn report_too_many_hashes(&self, start: BytePos, num: u32) -> !

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fn cook_common( &self, kind: LitKind, mode: Mode, start: BytePos, end: BytePos, prefix_len: u32, postfix_len: u32, unescape: fn(_: &str, _: Mode, _: &mut dyn FnMut(Range<usize>, Result<(), EscapeError>)) ) -> (LitKind, Symbol)

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fn cook_unicode( &self, kind: LitKind, mode: Mode, start: BytePos, end: BytePos, prefix_len: u32, postfix_len: u32 ) -> (LitKind, Symbol)

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fn cook_mixed( &self, kind: LitKind, mode: Mode, start: BytePos, end: BytePos, prefix_len: u32, postfix_len: u32 ) -> (LitKind, Symbol)

Auto Trait Implementations§

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impl<'psess, 'src> Freeze for StringReader<'psess, 'src>

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impl<'psess, 'src> !RefUnwindSafe for StringReader<'psess, 'src>

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impl<'psess, 'src> !Send for StringReader<'psess, 'src>

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impl<'psess, 'src> !Sync for StringReader<'psess, 'src>

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impl<'psess, 'src> Unpin for StringReader<'psess, 'src>

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impl<'psess, 'src> !UnwindSafe for StringReader<'psess, 'src>

Blanket Implementations§

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impl<T> Aligned for T

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const ALIGN: Alignment = _

Alignment of Self.
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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, R> CollectAndApply<T, R> for 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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impl<T> Filterable for T

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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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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> Same for T

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type Output = T

Should always be Self
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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<V, T> VZip<V> for T
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fn vzip(self) -> V

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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>,

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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: 88 bytes