pub struct Block {
pub stmts: ThinVec<Stmt>,
pub id: NodeId,
pub rules: BlockCheckMode,
pub span: Span,
pub tokens: Option<LazyAttrTokenStream>,
pub could_be_bare_literal: bool,
}
Expand description
A block ({ .. }
).
E.g., { .. }
as in fn foo() { .. }
.
Fields§
§stmts: ThinVec<Stmt>
The statements in the block.
id: NodeId
§rules: BlockCheckMode
Distinguishes between unsafe { ... }
and { ... }
.
span: Span
§tokens: Option<LazyAttrTokenStream>
§could_be_bare_literal: bool
The following isn’t a parse error, but will cause multiple errors in following stages.
ⓘ
let x = {
foo: var
};
#34255
Trait Implementations§
source§impl HasAttrs for Block
impl HasAttrs for Block
source§const SUPPORTS_CUSTOM_INNER_ATTRS: bool = false
const SUPPORTS_CUSTOM_INNER_ATTRS: bool = false
This is
true
if this HasAttrs
might support ‘custom’ (proc-macro) inner
attributes. Attributes like #![cfg]
and #![cfg_attr]
are not
considered ‘custom’ attributes. Read morefn attrs(&self) -> &[Attribute]
fn visit_attrs(&mut self, _f: impl FnOnce(&mut AttrVec))
source§impl HasTokens for Block
impl HasTokens for Block
fn tokens(&self) -> Option<&LazyAttrTokenStream>
fn tokens_mut(&mut self) -> Option<&mut Option<LazyAttrTokenStream>>
Auto Trait Implementations§
impl !RefUnwindSafe for Block
impl !Send for Block
impl !Sync for Block
impl Unpin for Block
impl !UnwindSafe for Block
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: 32 bytes