Trait macroex::Extractor

pub trait Extractor: Sized {
    // Required method
    fn extract(
        iter: &mut impl Iterator<Item = TokenTree>
    ) -> Result<Self, Error>;
}

Allow extracting from a TokenStream Iterator.

All FromMacro implementors use from_one as an extractor.

Combine with an extractor like Deliminated to use from_multi.

Required Methods

fn extract(iter: &mut impl Iterator<Item = TokenTree>) -> Result<Self, Error>

Object Safety

This trait is not object safe.

Implementors

impl Extractor for EndOfStream

impl<A, B, C, D, E, F, G, H, I, J, K, L> Extractor for MultiExtractor<(A, B, C, D, E, F, G, H, I, J, K, L)>

where A: Extractor, B: Extractor, C: Extractor, D: Extractor, E: Extractor, F: Extractor, G: Extractor, H: Extractor, I: Extractor, J: Extractor, K: Extractor, L: Extractor,

impl<B, C, D, E, F, G, H, I, J, K, L> Extractor for MultiExtractor<(B, C, D, E, F, G, H, I, J, K, L)>

where B: Extractor, C: Extractor, D: Extractor, E: Extractor, F: Extractor, G: Extractor, H: Extractor, I: Extractor, J: Extractor, K: Extractor, L: Extractor,

impl<C, D, E, F, G, H, I, J, K, L> Extractor for MultiExtractor<(C, D, E, F, G, H, I, J, K, L)>

where C: Extractor, D: Extractor, E: Extractor, F: Extractor, G: Extractor, H: Extractor, I: Extractor, J: Extractor, K: Extractor, L: Extractor,

impl<D, E, F, G, H, I, J, K, L> Extractor for MultiExtractor<(D, E, F, G, H, I, J, K, L)>

where D: Extractor, E: Extractor, F: Extractor, G: Extractor, H: Extractor, I: Extractor, J: Extractor, K: Extractor, L: Extractor,

impl<E, F, G, H, I, J, K, L> Extractor for MultiExtractor<(E, F, G, H, I, J, K, L)>

where E: Extractor, F: Extractor, G: Extractor, H: Extractor, I: Extractor, J: Extractor, K: Extractor, L: Extractor,

impl<F, G, H, I, J, K, L> Extractor for MultiExtractor<(F, G, H, I, J, K, L)>

where F: Extractor, G: Extractor, H: Extractor, I: Extractor, J: Extractor, K: Extractor, L: Extractor,

impl<G, H, I, J, K, L> Extractor for MultiExtractor<(G, H, I, J, K, L)>

where G: Extractor, H: Extractor, I: Extractor, J: Extractor, K: Extractor, L: Extractor,

impl<H, I, J, K, L> Extractor for MultiExtractor<(H, I, J, K, L)>

where H: Extractor, I: Extractor, J: Extractor, K: Extractor, L: Extractor,

impl<I, J, K, L> Extractor for MultiExtractor<(I, J, K, L)>

where I: Extractor, J: Extractor, K: Extractor, L: Extractor,

impl<J, K, L> Extractor for MultiExtractor<(J, K, L)>

where J: Extractor, K: Extractor, L: Extractor,

impl<K, L> Extractor for MultiExtractor<(K, L)>

where K: Extractor, L: Extractor,

impl<L> Extractor for MultiExtractor<(L,)>

where L: Extractor,

impl<T> Extractor for All<T>

where T: FromMacro,

impl<T> Extractor for ColonExtractor<T>

where T: FromMacro,

impl<T> Extractor for CommaExtractor<T>

where T: FromMacro,

impl<T> Extractor for OrEndOfStream<T>

where T: FromMacro,

impl<T> Extractor for SemiColonExtractor<T>

where T: FromMacro,

impl<T> Extractor for T

where T: FromMacro,

impl<T, const P: char> Extractor for Punctuated<T, P>

where T: FromMacro,

impl<T: FromMacro> Extractor for RustExpr<T>