Enum regex_syntax::ast::ClassSet
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pub enum ClassSet { Item(ClassSetItem), BinaryOp(ClassSetBinaryOp), }
A character class set.
This type corresponds to the internal structure of a bracketed character class. That is, every bracketed character is one of two types: a union of items (literals, ranges, other bracketed classes) or a tree of binary set operations.
Variants
Item(ClassSetItem)
An item, which can be a single literal, range, nested character class or a union of items.
BinaryOp(ClassSetBinaryOp)
A single binary operation (i.e., &&, -- or ~~).
Methods
impl ClassSet
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pub fn union(ast: ClassSetUnion) -> ClassSet
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Build a set from a union.
pub fn span(&self) -> &Span
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Return the span of this character class set.
Trait Implementations
impl Clone for ClassSet
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fn clone(&self) -> ClassSet
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl Debug for ClassSet
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fn fmt(&self, __arg_0: &mut Formatter) -> Result
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Formats the value using the given formatter. Read more
impl Eq for ClassSet
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impl PartialEq for ClassSet
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fn eq(&self, __arg_0: &ClassSet) -> bool
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This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, __arg_0: &ClassSet) -> bool
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This method tests for !=
.
impl Drop for ClassSet
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A custom Drop
impl is used for ClassSet
such that it uses constant
stack space but heap space proportional to the depth of the ClassSet
.