Struct rustc_builtin_macros::cfg_accessible::Expander
source · pub(crate) struct Expander;
Trait Implementations§
source§impl MultiItemModifier for Expander
impl MultiItemModifier for Expander
source§fn expand(
&self,
ecx: &mut ExtCtxt<'_>,
span: Span,
meta_item: &MetaItem,
item: Annotatable,
_is_derive_const: bool
) -> ExpandResult<Vec<Annotatable>, Annotatable>
fn expand( &self, ecx: &mut ExtCtxt<'_>, span: Span, meta_item: &MetaItem, item: Annotatable, _is_derive_const: bool ) -> ExpandResult<Vec<Annotatable>, Annotatable>
meta_item
is the attribute, and item
is the item being modified.Auto Trait Implementations§
impl RefUnwindSafe for Expander
impl Send for Expander
impl Sync for Expander
impl Unpin for Expander
impl UnwindSafe for Expander
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
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: 0 bytes