Struct Visitor

pub struct Visitor<Parent, Value> {
    pub parent: Parent,
    pub value: Value,
}

A visitor for tree traversal.

Fields

parent: Parent

The parent of the visitor.

value: Value

The value of the visitor.

Implementations

impl<Parent, Value> Visitor<Parent, Value>

pub fn new(parent: Parent, value: Value) -> Self

Creates a new visitor.

Trait Implementations

impl<Parent: Clone, Value: Clone> Clone for Visitor<Parent, Value>

fn clone(&self) -> Visitor<Parent, Value>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Parent: Debug, Value: Debug> Debug for Visitor<Parent, Value>

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

Formats the value using the given formatter.

impl<Parent: Default, Value: Default> Default for Visitor<Parent, Value>

fn default() -> Visitor<Parent, Value>

Returns the “default value” for a type.

impl<'a, Parent, Value, T> HasBranches<T> for &'a Visitor<Parent, Value>

where Visitor<Parent, Value>: UnsafeClone, T: From<Visitor<Parent, Value>> + 'a, &'a T: HasBranches<T>,

fn branches_impl(self) -> impl Iterator<Item = T>

This is the method that should be implemented to provide a way to iterate over the branches of a type. It’s discouraged to use this method directly. Instead, use the branches method from the HasBranchesAPIV2 trait.

impl<Parent, Value> HasParent for Visitor<Parent, Value>

where Self: KnowsVisitor, Parent: Clone + Into<Self::Visitor>,

fn parent(&self) -> Option<Self::Visitor>

Gets the parent of the object.

impl<Parent, Value> HasParentMut for Visitor<Parent, Value>

where Self: KnowsVisitor, Self::VisitorMut: UnsafeFrom<Parent>, Parent: Clone,

unsafe fn parent_mut(&mut self) -> Option<Self::VisitorMut>

Gets the parent of the object.

impl<Parent, Value> HasPath for Visitor<Parent, Value>

where Value: HasPathSegment, Parent: HasPath,

fn path(&self) -> Path

Gets the path of the type.

impl<Parent, Value> HasPathSegment for Visitor<Parent, Value>

where Value: HasPathSegment,

fn path_segment(&self) -> String

Gets the path segment of the type.

fn is(&self, identifier: impl PartialEq<String>) -> bool

Checks if the type is identified by the given path segment.

impl<Parent, Value> HasRoot for Visitor<Parent, Value>

where Self: KnowsVisitor, Parent: HasRoot, Parent::Visitor: Into<Self::Visitor>,

fn root(&self) -> Self::Visitor

Gets the root of the object.

impl<Parent, Value> HasRootMut for Visitor<Parent, Value>

where Self: KnowsVisitor, Parent: HasRootMut, Parent::VisitorMut: Into<Self::VisitorMut>,

unsafe fn root_mut(&mut self) -> Self::VisitorMut

Gets the root of the object.

impl<Parent, Value> KnowsVisitor for Visitor<Parent, Value>

where Parent: KnowsVisitor,

type Visitor = <Parent as KnowsVisitor>::Visitor

The visitor type.

type VisitorMut = <Parent as KnowsVisitor>::VisitorMut

impl<'a, Parent, Value> UnsafeClone for Visitor<Parent, &'a Value>

where Parent: Clone,

unsafe fn unsafe_clone(&self) -> Self

Clones the object.

impl<Parent, Value> UnsafeClone for Visitor<Parent, &mut Value>

where Parent: Clone,

unsafe fn unsafe_clone(&self) -> Self

Clones the object.