Struct ArgList 

pub struct ArgList<'a> { /* private fields */ }

A borrowed Nix list value.

Obtained from PrimOpArg::as_list or PrimOpValue::as_list. Provides read access to the list without owning any GC references itself.

Implementations

impl<'a> ArgList<'a>

pub fn get(&self, index: usize) -> Result<PrimOpValue<'a>>

Get an element by index.

Returns an owned PrimOpValue that holds a GC reference to the element. The caller is responsible for the GC reference; PrimOpValue releases it on drop. The value carries the same callback-frame lifetime as this list wrapper.

Errors

Returns Error::IndexOutOfBounds if index >= self.len().

pub fn len(&self) -> usize

Return the number of elements in this list.

pub fn is_empty(&self) -> bool

Return true if the list is empty.