Struct rustc_ast::ast::Block

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,
}

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

impl Clone for Block

fn clone(&self) -> Block

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Block

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

Formats the value using the given formatter.

impl<__D: SpanDecoder> Decodable<__D> for Block

fn decode(__decoder: &mut __D) -> Self

impl<__E: SpanEncoder> Encodable<__E> for Block

fn encode(&self, __encoder: &mut __E)

impl HasAttrs for Block

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.

fn attrs(&self) -> &[Attribute]

fn visit_attrs(&mut self, _f: impl FnOnce(&mut AttrVec))

impl HasTokens for Block

fn tokens(&self) -> Option<&LazyAttrTokenStream>

fn tokens_mut(&mut self) -> Option<&mut Option<LazyAttrTokenStream>>

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