[−][src]Struct swc_common::Span
A compressed span.
Contains either fields of SpanData
inline if they are small, or index into
span interner. The primary goal of Span
is to be as small as possible and
fit into other structures (that's why it uses packed
as well). Decoding
speed is the second priority. See SpanData
for the info on span fields in
decoded representation.
Methods
impl Span
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pub fn new(lo: BytePos, hi: BytePos, ctxt: SyntaxContext) -> Self
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pub fn data(self) -> SpanData
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impl Span
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pub fn lo(self) -> BytePos
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pub fn with_lo(self, lo: BytePos) -> Span
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pub fn hi(self) -> BytePos
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pub fn with_hi(self, hi: BytePos) -> Span
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pub fn ctxt(self) -> SyntaxContext
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pub fn with_ctxt(self, ctxt: SyntaxContext) -> Span
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pub fn is_dummy(self) -> bool
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Returns true
if this is a dummy span with any hygienic context.
pub fn shrink_to_lo(self) -> Span
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Returns a new span representing an empty span at the beginning of this span
pub fn shrink_to_hi(self) -> Span
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Returns a new span representing an empty span at the end of this span
pub fn substitute_dummy(self, other: Span) -> Span
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Returns self
if self
is not the dummy span, and other
otherwise.
pub fn contains(self, other: Span) -> bool
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Return true if self
fully encloses other
.
pub fn source_equal(&self, other: &Span) -> bool
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Return true if the spans are equal with regards to the source text.
Use this instead of ==
when either span could be generated code,
and you only care that they point to the same bytes of source text.
pub fn trim_start(self, other: Span) -> Option<Span>
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Returns Some(span)
, where the start is trimmed by the end of other
pub fn source_callsite(self) -> Span
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Return the source span - this is either the supplied span, or the span for the macro callsite that expanded to it.
pub fn parent(self) -> Option<Span>
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The Span
for the tokens in the previous macro expansion from which
self
was generated, if any
pub fn source_callee(self) -> Option<ExpnInfo>
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Return the source callee.
Returns None
if the supplied span has no expansion trace,
else returns the ExpnInfo
for the macro definition
corresponding to the source callsite.
pub fn allows_unstable(&self) -> bool
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Check if a span is "internal" to a macro in which #[unstable]
items can be used (that is, a macro marked with
#[allow_internal_unstable]
).
pub fn to(self, end: Span) -> Span
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Return a Span
that would enclose both self
and end
.
pub fn between(self, end: Span) -> Span
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Return a Span
between the end of self
to the beginning of end
.
pub fn until(self, end: Span) -> Span
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Return a Span
between the beginning of self
to the beginning of
end
.
pub fn from_inner_byte_pos(self, start: usize, end: usize) -> Span
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pub fn apply_mark(self, mark: Mark) -> Span
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pub fn remove_mark(&mut self) -> Mark
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pub fn adjust(&mut self, expansion: Mark) -> Option<Mark>
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pub fn glob_adjust(
&mut self,
expansion: Mark,
glob_ctxt: SyntaxContext
) -> Option<Option<Mark>>
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&mut self,
expansion: Mark,
glob_ctxt: SyntaxContext
) -> Option<Option<Mark>>
pub fn reverse_glob_adjust(
&mut self,
expansion: Mark,
glob_ctxt: SyntaxContext
) -> Option<Option<Mark>>
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&mut self,
expansion: Mark,
glob_ctxt: SyntaxContext
) -> Option<Option<Mark>>
pub fn modern(self) -> Span
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pub fn modern_and_legacy(self) -> Span
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Trait Implementations
impl Spanned for Span
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impl From<Span> for MultiSpan
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impl Clone for Span
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impl Copy for Span
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impl Default for Span
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impl Eq for Span
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impl Ord for Span
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fn cmp(&self, rhs: &Self) -> Ordering
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fn max(self, other: Self) -> Self
1.21.0[src]
fn min(self, other: Self) -> Self
1.21.0[src]
fn clamp(self, min: Self, max: Self) -> Self
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impl PartialEq<Span> for Span
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impl PartialOrd<Span> for Span
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fn partial_cmp(&self, rhs: &Self) -> Option<Ordering>
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#[must_use]
fn lt(&self, other: &Rhs) -> bool
1.0.0[src]
#[must_use]
fn le(&self, other: &Rhs) -> bool
1.0.0[src]
#[must_use]
fn gt(&self, other: &Rhs) -> bool
1.0.0[src]
#[must_use]
fn ge(&self, other: &Rhs) -> bool
1.0.0[src]
impl Debug for Span
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impl Hash for Span
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fn hash<H: Hasher>(&self, state: &mut H)
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fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
H: Hasher,
impl Serialize for Span
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impl<'de> Deserialize<'de> for Span
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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where
D: Deserializer<'de>,
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D: Deserializer<'de>,
Auto Trait Implementations
impl Send for Span
impl Sync for Span
impl Unpin for Span
impl UnwindSafe for Span
impl RefUnwindSafe for Span
Blanket Implementations
impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> From<T> for T
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impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> 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, U> TryInto<U> 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> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Erased for T
impl<T> Erased for T
impl<T> DeserializeOwned for T where
T: Deserialize<'de>,
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T: Deserialize<'de>,