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TokenTreeCursor

rustc_ast::tokenstream

Struct TokenTreeCursor 

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struct TokenTreeCursor {
    stream: TokenStream,
    next_idx: usize,
}

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§stream: TokenStream§next_idx: usize

Points to the next token tree (or one past the end of the stream).

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impl TokenTreeCursor

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fn new(stream: TokenStream) -> Self

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fn curr(&self) -> Option<&TokenTree>

Gets the current token tree within this cursor. In a debug build it panics on a cursor that hasn’t been bumped; in a release build it will return None.

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

Gets the next token tree without advancing.

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fn look_ahead(&self, n: usize) -> Option<&TokenTree>

Gets the token tree n ahead. look_ahead(1) is equivalent to next(). look_ahead(0) isn’t allowed and will panic.

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fn bump(&mut self)

Move the cursor to the next token tree.

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fn bump_to_end(&mut self)

For skipping ahead in rare circumstances.

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impl Clone for TokenTreeCursor

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fn clone(&self) -> TokenTreeCursor

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for TokenTreeCursor

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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impl<T> Aligned for T

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const ALIGN: Alignment

Alignment of Self.
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where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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where T: ?Sized,

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

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

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

🔬This is a nightly-only experimental API. (clone_to_uninit)
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impl<T> From<T> for T

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fn from(t: T) -> T

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type Result = ()

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const ALIGN: usize

The alignment of pointer.
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type Init = T

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unsafe fn init(init: <T as Pointable>::Init) -> usize

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type Error = !

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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