Struct ExprUnary

#[non_exhaustive]
pub struct ExprUnary {
    pub attributes: Vec<Attribute>,
    pub op: UnOp,
    pub expr: Box<Expr>,
}

A unary expression.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

attributes: Vec<Attribute>

Attributes associated with expression.

op: UnOp

The operation to apply.

expr: Box<Expr>

The expression of the operation.

Trait Implementations

impl Debug for ExprUnary

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

Formats the value using the given formatter.

impl OptionSpanned for ExprUnary

fn option_span(&self) -> Option<Span>

Get the optional span of the type.

impl Parse for ExprUnary

fn parse(p: &mut Parser<'_>) -> Result<Self>

Parse the current item from the parser.

impl PartialEq for ExprUnary

fn eq(&self, other: &ExprUnary) -> 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 Spanned for ExprUnary

fn span(&self) -> Span

Get the span of the type.

impl ToTokens for ExprUnary

fn to_tokens( &self, context: &mut MacroContext<'_, '_, '_>, stream: &mut TokenStream, ) -> Result<()>

Turn the current item into tokens.

impl TryClone for ExprUnary

fn try_clone(&self) -> Result<Self>

Try to clone the current value, raising an allocation error if it’s unsuccessful.

fn try_clone_from(&mut self, source: &Self) -> Result<(), Error>

Performs copy-assignment from source.

impl Eq for ExprUnary

impl StructuralPartialEq for ExprUnary