Struct ArrayRepeat

pub struct ArrayRepeat<T>(pub T, pub usize);

Extractor for syntax [T; N]

Example

let ArrayRepeat::<String>(arr, len) = quote!(["foo"; 4]).into_iter().extract().unwrap();
assert_eq!(arr, "foo");
assert_eq!(len, 4);

Tuple Fields

0: T

1: usize

Trait Implementations

impl<T: Clone> Clone for ArrayRepeat<T>

fn clone(&self) -> ArrayRepeat<T>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug> Debug for ArrayRepeat<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Default> Default for ArrayRepeat<T>

fn default() -> ArrayRepeat<T>

Returns the “default value” for a type.

impl<T: FromMacro> FromMacro for ArrayRepeat<T>

fn from_one(tt: TokenTree) -> Result<Self, Error>

This will be called if there is only one item

const PREFER_MANY: bool = false

Hint to All and similar extractors to disable length validation.

fn from_many(tokens: TokenStream) -> Result<Self, Error>

This will be called if there is more than one item.

fn peek(tt: &TokenTree) -> bool

Look ahead and determine parsability.

impl<T: Hash> Hash for ArrayRepeat<T>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<T: PartialEq> PartialEq for ArrayRepeat<T>

fn eq(&self, other: &ArrayRepeat<T>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T> ToTokens for ArrayRepeat<T>

where T: ToTokens,

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

Write self to the given TokenStream.

fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object.

fn into_token_stream(self) -> TokenStream

where Self: Sized,

Convert self directly into a TokenStream object.

impl<T: Copy> Copy for ArrayRepeat<T>

impl<T: Eq> Eq for ArrayRepeat<T>

impl<T> StructuralPartialEq for ArrayRepeat<T>