Struct rustc::hir::Pat
[−]
[src]
pub struct Pat { pub id: NodeId, pub node: PatKind, pub span: Span, }
rustc_private
)Fields
id: NodeId
rustc_private
)node: PatKind
rustc_private
)span: Span
rustc_private
)Methods
impl Pat
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fn is_refutable(&self) -> bool
rustc_private
)fn is_const(&self) -> bool
rustc_private
)fn each_binding<F>(&self, f: F) where F: FnMut(BindingMode, NodeId, Span, &Spanned<Name>)
rustc_private
)Call f
on every "binding" in a pattern, e.g., on a
in
match foo() { Some(a) => (), None => () }
fn contains_bindings(&self) -> bool
rustc_private
)Checks if the pattern contains any patterns that bind something to
an ident, e.g. foo
, or Foo(foo)
or foo @ Bar(..)
.
fn contains_bindings_or_wild(&self) -> bool
rustc_private
)Checks if the pattern contains any patterns that bind something to
an ident or wildcard, e.g. foo
, or Foo(_)
, foo @ Bar(..)
,
fn simple_name(&self) -> Option<Name>
rustc_private
)fn necessary_variants(&self) -> Vec<DefId>
rustc_private
)Return variants that are necessary to exist for the pattern to match.
fn contains_ref_binding(&self) -> Option<Mutability>
rustc_private
)Checks if the pattern contains any ref
or ref mut
bindings,
and if yes whether its containing mutable ones or just immutables ones.
impl Pat
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fn walk<F>(&self, it: F) -> bool where F: FnMut(&Pat) -> bool
rustc_private
)Trait Implementations
impl Clone for Pat
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fn clone(&self) -> Pat
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0
Performs copy-assignment from source
. Read more
impl PartialEq for Pat
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fn eq(&self, __arg_0: &Pat) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, __arg_0: &Pat) -> bool
This method tests for !=
.
impl Eq for Pat
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impl Encodable for Pat
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fn encode<__S: Encoder>(&self, __arg_0: &mut __S) -> Result<(), __S::Error>
🔬 This is a nightly-only experimental API. (rustc_private
)
deprecated in favor of rustc-serialize on crates.io
impl Decodable for Pat
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fn decode<__D: Decoder>(__arg_0: &mut __D) -> Result<Pat, __D::Error>
🔬 This is a nightly-only experimental API. (rustc_private
)
deprecated in favor of rustc-serialize on crates.io
impl Hash for Pat
[src]
fn hash<__H: Hasher>(&self, __arg_0: &mut __H)
Feeds this value into the state given, updating the hasher as necessary.
fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher
1.3.0
Feeds a slice of this type into the state provided.