Enum syn_mid::Pat

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pub enum Pat {
    Ident(PatIdent),
    Path(PatPath),
    Reference(PatReference),
    Struct(PatStruct),
    Tuple(PatTuple),
    TupleStruct(PatTupleStruct),
    Type(PatType),
    Wild(PatWild),
    // some variants omitted
}
Expand description

A pattern in a local binding, function signature, match expression, or various other places.

Syntax tree enum

This type is a syntax tree enum.

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Ident(PatIdent)

A pattern that binds a new variable: ref mut binding @ SUBPATTERN.

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Path(PatPath)

A path pattern like Color::Red.

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Reference(PatReference)

A reference pattern: &mut var.

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Struct(PatStruct)

A struct or struct variant pattern: Variant { x, y, .. }.

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Tuple(PatTuple)

A tuple pattern: (a, b).

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TupleStruct(PatTupleStruct)

A tuple struct or tuple variant pattern: Variant(x, y, .., z).

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Type(PatType)

A type ascription pattern: foo: f64.

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Wild(PatWild)

A pattern that matches any value: _.

Trait Implementations§

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impl Clone for Pat

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fn clone(&self) -> Pat

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl From<PatIdent> for Pat

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fn from(e: PatIdent) -> Pat

Converts to this type from the input type.
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impl From<PatPath> for Pat

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fn from(e: PatPath) -> Pat

Converts to this type from the input type.
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impl From<PatReference> for Pat

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fn from(e: PatReference) -> Pat

Converts to this type from the input type.
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impl From<PatStruct> for Pat

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fn from(e: PatStruct) -> Pat

Converts to this type from the input type.
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impl From<PatTuple> for Pat

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fn from(e: PatTuple) -> Pat

Converts to this type from the input type.
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impl From<PatTupleStruct> for Pat

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fn from(e: PatTupleStruct) -> Pat

Converts to this type from the input type.
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impl From<PatType> for Pat

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fn from(e: PatType) -> Pat

Converts to this type from the input type.
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impl From<PatWild> for Pat

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fn from(e: PatWild) -> Pat

Converts to this type from the input type.
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impl Parse for Pat

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fn parse(input: ParseStream<'_>) -> Result<Self>

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impl ToTokens for Pat

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fn to_tokens(&self, tokens: &mut TokenStream)

Write self to the given TokenStream. Read more
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fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object. Read more
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fn into_token_stream(self) -> TokenStreamwhere Self: Sized,

Convert self directly into a TokenStream object. Read more

Auto Trait Implementations§

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impl RefUnwindSafe for Pat

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impl !Send for Pat

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impl !Sync for Pat

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impl Unpin for Pat

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impl UnwindSafe for Pat

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere 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> Spanned for Twhere T: Spanned + ?Sized,

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fn span(&self) -> Span

Returns a Span covering the complete contents of this syntax tree node, or Span::call_site() if this node is empty.
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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere 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 Twhere 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.