Struct CallArgs 

pub struct CallArgs<'ast> {
    pub span: Span,
    pub kind: CallArgsKind<'ast>,
}

A list of function call arguments.

Fields

span: Span

The span of the arguments. This points to the parenthesized list of arguments.

If the list is empty, this points to the empty ()/({}) or to where the ( would be.

kind: CallArgsKind<'ast>

Implementations

impl<'ast> CallArgs<'ast>

pub fn empty(span: Span) -> Self

Creates a new empty list of arguments.

span should be an empty span.

pub fn is_dummy(&self) -> bool

Returns true if the argument list is not present in the source code.

For example, a modifier m can be invoked in a function declaration as m or m(). In the first case, this returns true, and the span will point to after m. In the second case, this returns false.

pub fn len(&self) -> usize

Returns the length of the arguments.

pub fn is_empty(&self) -> bool

Returns true if the list of arguments is empty.

pub fn exprs( &self, ) -> impl ExactSizeIterator<Item = &Expr<'ast>> + DoubleEndedIterator + Clone

Returns an iterator over the expressions.

pub fn exprs_mut( &mut self, ) -> impl ExactSizeIterator<Item = &mut Box<'ast, Expr<'ast>>> + DoubleEndedIterator

Returns an iterator over the expressions.

Trait Implementations

impl<'ast> Debug for CallArgs<'ast>

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

Formats the value using the given formatter.

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: 24 bytes