Enum Arg 

pub enum Arg {
    ExprCast(ExprCast),
    Expr(Expr),
}

An argument to a pw_format backed macro.

pw_format backed macros have special case recognition of type casts (value as ty) in order to annotate a type for typeless printing w/o relying on experimental features. If an argument is given in that form, it will be represented as an Arg::ExprCast here. Otherwise it will be an Arg::Expr.

Variants

ExprCast(ExprCast)

An argument that is an type cast expression.

Expr(Expr)

An argument that is an expression.

Trait Implementations

impl Clone for Arg

fn clone(&self) -> Arg

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Arg

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

Formats the value using the given formatter.

impl Parse for Arg

fn parse(input: ParseStream<'_>) -> Result<Self>

impl ToTokens for Arg

fn to_tokens(&self, tokens: &mut TokenStream)

Write self to the given TokenStream.

fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object.

fn into_token_stream(self) -> TokenStream

where Self: Sized,

Convert self directly into a TokenStream object.