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Try

Struct Try

pub struct Try {
    pub span: Span,
}

Expand description

try

Don’t try to remember the name of this type — use the Token! macro instead.

Fields§

§span: Span

Trait Implementations§

impl Clone for Try

Available on crate feature clone-impls only.

fn clone(&self) -> Self

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl Default for Try

fn default() -> Self

Returns the “default value” for a type. Read more

impl Parse for Try

Available on crate feature parsing only.

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

impl ToTokens for Try

Available on crate feature printing only.

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

Write self to the given TokenStream. Read more

fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object. Read more

fn into_token_stream(self) -> TokenStream
where Self: Sized,

Convert self directly into a TokenStream object. Read more

impl Token for Try

Available on crate feature parsing only.

fn peek(cursor: Cursor<'_>) -> bool

fn display() -> &'static str

impl Copy for Try

Available on crate feature clone-impls only.

Auto Trait Implementations§

impl Freeze for Try

impl RefUnwindSafe for Try

impl !Send for Try

impl !Sync for Try

impl Unpin for Try

impl UnwindSafe for Try

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> RepToTokensExt for T
where T: ToTokens + ?Sized,

fn next(&self) -> Option<&Self>

Pretend to be an iterator for the purposes of quote_into_iter. This allows repeated calls to quote_into_iter to continue correctly returning DoesNotHaveIter.

fn quote_into_iter(&self) -> (&Self, ThereIsNoIteratorInRepetition)

impl<T> SizedTypeProperties for T

#[doc(hidden)]
const SIZE: usize = _

🔬This is a nightly-only experimental API. (sized_type_properties)

#[doc(hidden)]
const ALIGN: usize = _

🔬This is a nightly-only experimental API. (sized_type_properties)

#[doc(hidden)]
const IS_ZST: bool = _

🔬This is a nightly-only experimental API. (sized_type_properties)

true if this type requires no storage. false if its size is greater than zero. Read more

#[doc(hidden)]
const LAYOUT: Layout = _

🔬This is a nightly-only experimental API. (sized_type_properties)

#[doc(hidden)]
const MAX_SLICE_LEN: usize = _

🔬This is a nightly-only experimental API. (sized_type_properties)

The largest safe length for a [Self]. Read more

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

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.

impl<T> Spanned for T
where T: ToTokens + ?Sized,

fn __span(&self) -> Span

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

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

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

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

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

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

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

Performs the conversion.