TokenBuffer

syn::buffer

Struct TokenBuffer 

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pub struct TokenBuffer { /* private fields */ }
Available on crate feature parsing only.
Expand description

A buffer that can be efficiently traversed multiple times, unlike TokenStream which requires a deep copy in order to traverse more than once.

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impl TokenBuffer

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pub fn new(stream: TokenStream) -> Self

Available on crate feature proc-macro only.

Creates a TokenBuffer containing all the tokens from the input proc_macro::TokenStream.

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pub fn new2(stream: TokenStream) -> Self

Creates a TokenBuffer containing all the tokens from the input proc_macro2::TokenStream.

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pub fn begin(&self) -> Cursor<'_>

Creates a cursor referencing the first token in the buffer and able to traverse until the end of the buffer.

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

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fn type_id(&self) -> TypeId

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

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fn borrow(&self) -> &T

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

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

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes