[−][src]Struct syntax::source_map::SpanData
Spans represent a region of code, used for error reporting. Positions in spans
are absolute positions from the beginning of the source_map, not positions
relative to SourceFile
s. Methods on the SourceMap
can be used to relate spans back
to the original source.
You must be careful if the span crosses more than one file - you will not be
able to use many of the functions on spans in source_map and you cannot assume
that the length of the span = hi - lo
; there may be space in the BytePos
range between files.
SpanData
is public because Span
uses a thread-local interner and can't be
sent to other threads, but some pieces of performance infra run in a separate thread.
Using Span
is generally preferred.
Fields
lo: BytePos
hi: BytePos
ctxt: SyntaxContext
Information about where the macro came from, if this piece of code was created by a macro expansion.
Methods
impl SpanData
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pub fn with_lo(&self, lo: BytePos) -> Span
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pub fn with_hi(&self, hi: BytePos) -> Span
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pub fn with_ctxt(&self, ctxt: SyntaxContext) -> Span
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Trait Implementations
impl Copy for SpanData
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impl Ord for SpanData
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fn cmp(&self, other: &SpanData) -> Ordering
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fn max(self, other: Self) -> Self
1.21.0[src]
Compares and returns the maximum of two values. Read more
fn min(self, other: Self) -> Self
1.21.0[src]
Compares and returns the minimum of two values. Read more
impl PartialOrd<SpanData> for SpanData
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fn partial_cmp(&self, other: &SpanData) -> Option<Ordering>
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fn lt(&self, other: &SpanData) -> bool
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fn le(&self, other: &SpanData) -> bool
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fn gt(&self, other: &SpanData) -> bool
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fn ge(&self, other: &SpanData) -> bool
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impl Hash for SpanData
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fn hash<__H>(&self, state: &mut __H) where
__H: Hasher,
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__H: Hasher,
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
H: Hasher,
Feeds a slice of this type into the given [Hasher
]. Read more
impl Eq for SpanData
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impl PartialEq<SpanData> for SpanData
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impl Debug for SpanData
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impl Clone for SpanData
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Auto Trait Implementations
Blanket Implementations
impl<T, U> Into for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
impl<T> From for T
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impl<T, U> TryFrom for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T> Borrow for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T, U> TryInto for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<E> SpecializationError for E
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impl<T> Send for T where
T: ?Sized,
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T: ?Sized,
impl<T> Sync for T where
T: ?Sized,
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T: ?Sized,