Enum syn::GenericParam

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pub enum GenericParam {
    Type(TypeParam),
    Lifetime(LifetimeDef),
    Const(ConstParam),
}

Available on crate features full or derive only.

Expand description

A generic type parameter, lifetime, or const generic: T: Into<String>, 'a: 'b, const LEN: usize.

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

Syntax tree enum

This type is a syntax tree enum.

Variants

`Type(TypeParam)`

A generic type parameter: T: Into<String>.

`Lifetime(LifetimeDef)`

A lifetime definition: 'a: 'b + 'c + 'd.

`Const(ConstParam)`

A const generic parameter: const LENGTH: usize.

Trait Implementations

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impl Clone for GenericParam

Available on crate feature clone-impls only.

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fn clone(&self) -> Self

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

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impl From<ConstParam> for GenericParam

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fn from(e: ConstParam) -> GenericParam

Converts to this type from the input type.

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impl From<LifetimeDef> for GenericParam

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fn from(e: LifetimeDef) -> GenericParam

Converts to this type from the input type.

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impl From<TypeParam> for GenericParam

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fn from(e: TypeParam) -> GenericParam

Converts to this type from the input type.

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impl Parse for GenericParam

Available on crate feature parsing only.

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

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impl ToTokens for GenericParam

Available on crate feature printing only.

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

Write self to the given TokenStream. Read more

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fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object. Read more

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fn into_token_stream(self) -> TokenStream

Convert self directly into a TokenStream object. Read more

Auto Trait Implementations

impl RefUnwindSafe for GenericParam

impl !Send for GenericParam

impl !Sync for GenericParam

impl Unpin for GenericParam

impl UnwindSafe for GenericParam

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> Spanned for T where
T: Spanned + ?Sized,

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fn span(&self) -> Span

Available on crate features parsing and printing only.

Returns a Span covering the complete contents of this syntax tree node, or Span::call_site() if this node is empty. Read more

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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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::GenericParam

Syntax tree enum

Variants

Type(TypeParam)

Lifetime(LifetimeDef)

Const(ConstParam)

Trait Implementations

impl Clone for GenericParam

fn clone(&self) -> Self

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

impl From<ConstParam> for GenericParam

fn from(e: ConstParam) -> GenericParam

impl From<LifetimeDef> for GenericParam

fn from(e: LifetimeDef) -> GenericParam

impl From<TypeParam> for GenericParam

fn from(e: TypeParam) -> GenericParam

impl Parse for GenericParam

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

impl ToTokens for GenericParam

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

fn to_token_stream(&self) -> TokenStream

fn into_token_stream(self) -> TokenStream

Auto Trait Implementations

impl RefUnwindSafe for GenericParam

impl !Send for GenericParam

impl !Sync for GenericParam

impl Unpin for GenericParam

impl UnwindSafe for GenericParam

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> Spanned for T where T: Spanned + ?Sized,

fn span(&self) -> Span

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

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>

`Type(TypeParam)`

`Lifetime(LifetimeDef)`

`Const(ConstParam)`

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> Spanned for T where
T: Spanned + ?Sized,

impl<T> ToOwned for T where
T: Clone,

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

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