Enum syn::NestedMeta

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pub enum NestedMeta {
    Meta(Meta),
    Lit(Lit),
}

Expand description

Element of a compile-time attribute list.

This type is available only if Syn is built with the "derive" or "full" feature.

Variants

`Meta(Meta)`

A structured meta item, like the Copy in #[derive(Copy)] which would be a nested Meta::Path.

`Lit(Lit)`

A Rust literal, like the "new_name" in #[rename("new_name")].

Trait Implementations

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impl From<Lit> for NestedMeta

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fn from(e: Lit) -> NestedMeta

Converts to this type from the input type.

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impl From<Meta> for NestedMeta

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fn from(e: Meta) -> NestedMeta

Converts to this type from the input type.

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impl Parse for NestedMeta

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

Auto Trait Implementations

impl RefUnwindSafe for NestedMeta

impl !Send for NestedMeta

impl !Sync for NestedMeta

impl Unpin for NestedMeta

impl UnwindSafe for NestedMeta

Blanket Implementations

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impl<T> Any for T where
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 T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

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

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

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, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Enum syn::NestedMeta

Variants

`Meta(Meta)`

`Lit(Lit)`

Trait Implementations

impl From<Lit> for NestedMeta

fn from(e: Lit) -> NestedMeta

impl From<Meta> for NestedMeta

fn from(e: Meta) -> NestedMeta

impl Parse for NestedMeta

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

Auto Trait Implementations

impl RefUnwindSafe for NestedMeta

impl !Send for NestedMeta

impl !Sync for NestedMeta

impl Unpin for NestedMeta

impl UnwindSafe for NestedMeta

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where
T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where
T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where
U: From<T>,

fn into(self) -> U

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Enum syn::NestedMeta

Variants

Meta(Meta)

Lit(Lit)

Trait Implementations

impl From<Lit> for NestedMeta

fn from(e: Lit) -> NestedMeta

impl From<Meta> for NestedMeta

fn from(e: Meta) -> NestedMeta

impl Parse for NestedMeta

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

Auto Trait Implementations

impl RefUnwindSafe for NestedMeta

impl !Send for NestedMeta

impl !Sync for NestedMeta

impl Unpin for NestedMeta

impl UnwindSafe for NestedMeta

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

`Meta(Meta)`

`Lit(Lit)`

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,