Struct CallArg 

pub struct CallArg {
    pub keyword: Option<(String, Span)>,
    pub value: Expr,
}

One call argument: either positional (expr) or keyword (name = expr, issue #110). Keyword arguments keep the name token’s exact span so binding diagnostics are source-located on the name (unknown/duplicate keyword) or the value (enum-domain, arity of the value expression) as appropriate.

Fields

keyword: Option<(String, Span)>

The keyword name and its exact span, when this is a name = expr argument.

value: Expr

The argument’s value expression.

Implementations

impl CallArg

pub fn span(&self) -> Span

The source span of this argument: the keyword name when keyword, the value expression otherwise.

Trait Implementations

impl Clone for CallArg

fn clone(&self) -> CallArg

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CallArg

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

Formats the value using the given formatter.