Skip to main content

TreeZipperExt

oxilean_parse::ast_impl::types

Struct TreeZipperExt 

Source 
pub struct TreeZipperExt {
    pub focus: TreeNodeExt,
    pub path: TreePathExt,
    pub ancestors: Vec<(SimpleNodeKindExt, String, Vec<TreeNodeExt>, Vec<TreeNodeExt>)>,
}
Expand description

A tree zipper for navigation.

Fields§

§focus: TreeNodeExt

The focused node

§path: TreePathExt

The path to the focus

§ancestors: Vec<(SimpleNodeKindExt, String, Vec<TreeNodeExt>, Vec<TreeNodeExt>)>

Ancestors (parent, sibling index, left siblings, right siblings)

Implementations§

Source§

impl TreeZipperExt

Source

pub fn new(root: TreeNodeExt) -> Self

Create a zipper from a root.

Source

pub fn down(self, i: usize) -> Option<Self>

Move into the i-th child.

Source

pub fn up(self) -> Option<(Self, TreeNodeExt)>

Move back up to the parent.

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.