pub struct Block {
pub stmts: Vec<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: Vec<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
sourceimpl DummyAstNode for Block
impl DummyAstNode for Block
sourceimpl HasAttrs for Block
impl HasAttrs for Block
sourceconst 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))
sourceimpl 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
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn 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: 48 bytes