Struct BlockExpr 

pub struct BlockExpr { /* private fields */ }

Implementations

impl BlockExpr

pub fn modifier(&self) -> Option<BlockModifier>

pub fn is_standalone(&self) -> bool

false if the block is an intrinsic part of the syntax and can’t be replaced with arbitrary expression.

fn foo() { not_stand_alone }
const FOO: () = { stand_alone };

impl BlockExpr

pub fn label(&self) -> Option<Label>

pub fn stmt_list(&self) -> Option<StmtList>

pub fn async_token(&self) -> Option<SyntaxToken>

pub fn const_token(&self) -> Option<SyntaxToken>

pub fn gen_token(&self) -> Option<SyntaxToken>

pub fn move_token(&self) -> Option<SyntaxToken>

pub fn try_token(&self) -> Option<SyntaxToken>

pub fn unsafe_token(&self) -> Option<SyntaxToken>

impl BlockExpr

pub fn statements(&self) -> impl Iterator<Item = Stmt>

pub fn tail_expr(&self) -> Option<Expr>

pub fn may_carry_attributes(&self) -> bool

Block expressions accept outer and inner attributes, but only when they are the outer expression of an expression statement or the final expression of another block expression.

Trait Implementations

impl AstNode for BlockExpr

fn kind() -> SyntaxKind

where Self: Sized,

This panics if the SyntaxKind is not statically known.

fn can_cast(kind: SyntaxKind) -> bool

fn cast(syntax: SyntaxNode) -> Option<Self>

fn syntax(&self) -> &SyntaxNode

fn clone_for_update(&self) -> Self

where Self: Sized,

fn clone_subtree(&self) -> Self

where Self: Sized,

impl Clone for BlockExpr

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BlockExpr

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

Formats the value using the given formatter.

impl Display for BlockExpr

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

Formats the value using the given formatter.

impl From<BlockExpr> for AnyHasAttrs

fn from(node: BlockExpr) -> AnyHasAttrs

Converts to this type from the input type.

impl From<BlockExpr> for ElseBranch

fn from(block_expr: BlockExpr) -> Self

Converts to this type from the input type.

impl From<BlockExpr> for Expr

fn from(node: BlockExpr) -> Expr

Converts to this type from the input type.

impl HasAttrs for BlockExpr

fn attrs(&self) -> AstChildren<Attr>

fn has_atom_attr(&self, atom: &str) -> bool

fn inner_attributes_node(&self) -> Option<SyntaxNode>

This may return the same node as called with (with SourceFile). The caller has the responsibility to avoid duplicate attributes.

impl Hash for BlockExpr

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for BlockExpr

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for BlockExpr