Trait devise_core::FromMeta

pub trait FromMeta: Sized {
    // Required method
    fn from_meta(meta: &MetaItem) -> Result<Self>;

    // Provided methods
    fn from_attr(attr: &Attribute) -> Result<Self> { ... }
    fn from_attrs(name: &str, attrs: &[Attribute]) -> Result<Vec<Self>> { ... }
    fn one_from_attrs(name: &str, attrs: &[Attribute]) -> Result<Option<Self>> { ... }
    fn default() -> Option<Self> { ... }
}

Required Methods

fn from_meta(meta: &MetaItem) -> Result<Self>

Provided Methods

fn from_attr(attr: &Attribute) -> Result<Self>

fn from_attrs(name: &str, attrs: &[Attribute]) -> Result<Vec<Self>>

fn one_from_attrs(name: &str, attrs: &[Attribute]) -> Result<Option<Self>>

fn default() -> Option<Self>

Implementations on Foreign Types

impl<T: FromMeta> FromMeta for Option<T>

fn from_meta(meta: &MetaItem) -> Result<Self>

fn default() -> Option<Self>

impl FromMeta for String

fn from_meta(meta: &MetaItem) -> Result<Self>

impl FromMeta for TokenStream

fn from_meta(meta: &MetaItem) -> Result<Self>

impl<T: Parse, P: Parse> FromMeta for Punctuated<T, P>

fn from_meta(meta: &MetaItem) -> Result<Self>

impl FromMeta for usize

fn from_meta(meta: &MetaItem) -> Result<Self>

impl FromMeta for bool

fn from_meta(meta: &MetaItem) -> Result<Self>

impl FromMeta for isize

fn from_meta(meta: &MetaItem) -> Result<Self>

impl FromMeta for Expr

fn from_meta(meta: &MetaItem) -> Result<Self>

Implementors

impl<T: FromMeta> FromMeta for SpanWrapped<T>