Trait macro_input::FromMeta

pub trait FromMeta {
    fn from(meta: Option<Meta>) -> Self;
}

a trait for extracting a value from Option<syn::Meta>

Required methods

fn from(meta: Option<Meta>) -> Self

extract the value

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Implementations on Foreign Types

impl FromMeta for Option<()>

fn from(meta: Option<Meta>) -> Option<()>

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Implementors

impl<F> FromMeta for F where
    F: FromLit, 

fn from(meta: Option<Meta>) -> F

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