Struct trees::linked::fully::tree::Tree

pub struct Tree<T> { /* fields omitted */ }

A non-nullable tree

Methods

impl<T> Tree<T>

pub fn new(data: T) -> Self

Creates a Tree with given data on heap.

pub fn root(&self) -> &Node<T>

pub fn root_mut(&mut self) -> &mut Node<T>

pub fn abandon(&mut self) -> Forest<T>

Removes and returns the given Tree's children.

Examples

use trees::linked::fully::tr;
let mut tree = tr(0) /tr(1)/tr(2);
assert_eq!( tree.abandon().to_string(), "( 1 2 )" );
assert_eq!( tree, tr(0) );

pub fn into_bfs(self) -> BfsTree<Splitted<IntoIter<T>>>

Provides a forward iterator with owned data in a breadth-first manner

Examples

use trees::{bfs,Size};
use trees::linked::fully::tr;

let tree = tr(0) /( tr(1)/tr(2)/tr(3) ) /( tr(4)/tr(5)/tr(6) );
let visits = tree.into_bfs().iter.collect::<Vec<_>>();
assert_eq!( visits, vec![
    bfs::Visit{ data: 0, size: Size{ degree: 2, node_cnt: 7 }},
    bfs::Visit{ data: 1, size: Size{ degree: 2, node_cnt: 3 }},
    bfs::Visit{ data: 4, size: Size{ degree: 2, node_cnt: 3 }},
    bfs::Visit{ data: 2, size: Size{ degree: 0, node_cnt: 1 }},
    bfs::Visit{ data: 3, size: Size{ degree: 0, node_cnt: 1 }},
    bfs::Visit{ data: 5, size: Size{ degree: 0, node_cnt: 1 }},
    bfs::Visit{ data: 6, size: Size{ degree: 0, node_cnt: 1 }},
]);

Methods from Deref<Target = Node<T>>

pub fn is_leaf(&self) -> bool

pub fn degree(&self) -> usize

Returns the number of subtrees in Forest.

Examples

use trees::linked::fully::tr;
let tree = tr(0) /( tr(1)/tr(2)/tr(3) ) /( tr(4)/tr(5)/tr(6) );
assert_eq!( tree.degree(), 2 );

pub fn node_count(&self) -> usize

Returns the number of all subnodes in Forest.

Examples

use trees::linked::fully::tr;
let tree = tr(0) /( tr(1)/tr(2)/tr(3) ) /( tr(4)/tr(5)/tr(6) );
assert_eq!( tree.node_count(), 7 );

pub fn first(&self) -> Option<&Node<T>>

Returns the first child of the forest, or None if it is empty.

pub fn forest(&self) -> &Forest<T>

Returns the given Tree's children as a borrowed Forest.

Examples

use trees::linked::fully::tr;
let mut tree = tr(0) /tr(1)/tr(2);
assert_eq!( tree.forest().to_string(), "( 1 2 )" );

pub fn forest_mut(&mut self) -> &mut Forest<T>

Returns the given Tree's children as a mutable borrowed Forest.

Examples

use trees::linked::fully::tr;
let mut tree = tr(0) /tr(1)/tr(2);
for child in tree.forest_mut().iter_mut() { child.data *= 10; }
assert_eq!( tree.to_string(), "0( 10 20 )" );

pub fn first_mut(&mut self) -> Option<&mut Node<T>>

Returns a mutable pointer to the first child of the forest, or None if it is empty.

pub fn last(&self) -> Option<&Node<T>>

Returns the last child of the forest, or None if it is empty.

pub fn last_mut(&mut self) -> Option<&mut Node<T>>

Returns a mutable pointer to the last child of the forest, or None if it is empty.

pub fn parent(&self) -> Option<&Node<T>>

Returns the parent node of this node, or None if it is a root node.

pub fn push_front(&mut self, tree: Tree<T>)

Adds the tree as the first child.

Examples

use trees::linked::fully::tr;
let mut tree = tr(0);
tree.push_front( tr(1) );
assert_eq!( tree.to_string(), "0( 1 )" );
tree.push_front( tr(2) );
assert_eq!( tree.to_string(), "0( 2 1 )" );

pub fn push_back(&mut self, tree: Tree<T>)

Add the tree as the last child

Examples

use trees::linked::fully::tr;
let mut tree = tr(0);
tree.push_back( tr(1) );
assert_eq!( tree.to_string(), "0( 1 )" );
tree.push_back( tr(2) );
assert_eq!( tree.to_string(), "0( 1 2 )" );

pub fn pop_front(&mut self) -> Option<Tree<T>>

Remove and return the first child

Examples

use trees::linked::fully::tr;
let mut tree = tr(0) /tr(1)/tr(2);
assert_eq!( tree.pop_front(), Some( tr(1) ));
assert_eq!( tree.to_string(), "0( 2 )" );
assert_eq!( tree.pop_front(), Some( tr(2) ));
assert_eq!( tree.to_string(), "0" );

pub fn pop_back(&mut self) -> Option<Tree<T>>

Remove and return the last child

Examples

use trees::linked::fully::tr;
let mut tree = tr(0) /tr(1)/tr(2);
assert_eq!( tree.pop_back(), Some( tr(2) ));
assert_eq!( tree.to_string(), "0( 1 )" );
assert_eq!( tree.pop_back(), Some( tr(1) ));
assert_eq!( tree.to_string(), "0" );

pub fn prepend(&mut self, forest: Forest<T>)

Add all the forest's trees at front of children list

Examples

use trees::linked::fully::tr;
let mut tree = tr(0);
tree.prepend( -tr(1)-tr(2) );
assert_eq!( tree.to_string(), "0( 1 2 )" );
tree.prepend( -tr(3)-tr(4) );
assert_eq!( tree.to_string(), "0( 3 4 1 2 )" );

pub fn append(&mut self, forest: Forest<T>)

Add all the forest's trees at back of children list

Examples

use trees::linked::fully::tr;
let mut tree = tr(0);
tree.append( -tr(1)-tr(2) );
assert_eq!( tree.to_string(), "0( 1 2 )" );
tree.append( -tr(3)-tr(4) );
assert_eq!( tree.to_string(), "0( 1 2 3 4 )" );

Important traits for Iter<'a, T>

impl<'a, T: 'a> Iterator for Iter<'a, T> type Item = &'a Node<T>;

pub fn iter<'a, 's: 'a>(&'s self) -> Iter<'a, T>

Provides a forward iterator over child Nodes

Examples

use trees::linked::fully::tr;

let tree = tr(0);
assert_eq!( tree.iter().next(), None );

let tree = tr(0) /tr(1)/tr(2);
let mut iter = tree.iter();
assert_eq!( iter.next(), Some( tr(1).root() ));
assert_eq!( iter.next(), Some( tr(2).root() ));
assert_eq!( iter.next(), None );
assert_eq!( iter.next(), None );

Important traits for Iter<'a, T>

impl<'a, T: 'a> Iterator for Iter<'a, T> type Item = &'a Node<T>;

pub fn children<'a, 's: 'a>(&'s self) -> Iter<'a, T>

Deprecated since 0.2.0

: please use iter instead

Important traits for IterMut<'a, T>

impl<'a, T: 'a> Iterator for IterMut<'a, T> type Item = &'a mut Node<T>;

pub fn iter_mut<'a, 's: 'a>(&'s mut self) -> IterMut<'a, T>

Provides a forward iterator over child Nodes with mutable references.

Examples

use trees::linked::fully::tr;

let mut tree = tr(0);
assert_eq!( tree.iter_mut().next(), None );

let mut tree = tr(0) /tr(1)/tr(2);
for child in tree.iter_mut() { child.data *= 10; }
assert_eq!( tree.to_string(), "0( 10 20 )" );

Important traits for IterMut<'a, T>

impl<'a, T: 'a> Iterator for IterMut<'a, T> type Item = &'a mut Node<T>;

pub fn children_mut<'a, 's: 'a>(&'s mut self) -> IterMut<'a, T>

Deprecated since 0.2.0

: please use iter_mut instead

Important traits for OntoIter<'a, T>

impl<'a, T: 'a> Iterator for OntoIter<'a, T> type Item = Subnode<'a, T>;

pub fn onto_iter<'a, 's: 'a>(&'s mut self) -> OntoIter<'a, T>

Provide an iterator over Node's Subnodes for insert/remove at any position. See Subnode's document for more.

pub fn bfs(&self) -> BfsTree<Splitted<Iter<T>>>

Provides a forward iterator in a breadth-first manner

Examples

use trees::{bfs,Size};
use trees::linked::fully::tr;

let tree = tr(0) /( tr(1)/tr(2)/tr(3) ) /( tr(4)/tr(5)/tr(6) );
let visits = tree.root().bfs().iter.collect::<Vec<_>>();
assert_eq!( visits, vec![
    bfs::Visit{ data: &0, size: Size{ degree: 2, node_cnt: 7 }},
    bfs::Visit{ data: &1, size: Size{ degree: 2, node_cnt: 3 }},
    bfs::Visit{ data: &4, size: Size{ degree: 2, node_cnt: 3 }},
    bfs::Visit{ data: &2, size: Size{ degree: 0, node_cnt: 1 }},
    bfs::Visit{ data: &3, size: Size{ degree: 0, node_cnt: 1 }},
    bfs::Visit{ data: &5, size: Size{ degree: 0, node_cnt: 1 }},
    bfs::Visit{ data: &6, size: Size{ degree: 0, node_cnt: 1 }},
]);

pub fn bfs_mut(&mut self) -> BfsTree<Splitted<IterMut<T>>>

Provides a forward iterator with mutable references in a breadth-first manner

Examples

use trees::{bfs,Size};
use trees::linked::fully::tr;

let mut tree = tr(0) /( tr(1)/tr(2)/tr(3) ) /( tr(4)/tr(5)/tr(6) );
let visits = tree.root_mut().bfs_mut().iter.collect::<Vec<_>>();
assert_eq!( visits, vec![
    bfs::Visit{ data: &mut 0, size: Size{ degree: 2, node_cnt: 7 }},
    bfs::Visit{ data: &mut 1, size: Size{ degree: 2, node_cnt: 3 }},
    bfs::Visit{ data: &mut 4, size: Size{ degree: 2, node_cnt: 3 }},
    bfs::Visit{ data: &mut 2, size: Size{ degree: 0, node_cnt: 1 }},
    bfs::Visit{ data: &mut 3, size: Size{ degree: 0, node_cnt: 1 }},
    bfs::Visit{ data: &mut 5, size: Size{ degree: 0, node_cnt: 1 }},
    bfs::Visit{ data: &mut 6, size: Size{ degree: 0, node_cnt: 1 }},
]);

Trait Implementations

impl<T> Split for Tree<T>

type Item = T

type Iter = IntoIter<T>

fn split(self) -> (T, IntoIter<T>, u32)

impl<T> IntoIterator for Tree<T>

type Item = Tree<T>

The type of the elements being iterated over.

type IntoIter = IntoIter<T>

Which kind of iterator are we turning this into?

Important traits for IntoIter<T>

impl<T> Iterator for IntoIter<T> type Item = Tree<T>;

fn into_iter(self) -> IntoIter<T>

Creates an iterator from a value.

impl<T> Borrow<Node<T>> for Tree<T>

fn borrow(&self) -> &Node<T>

Immutably borrows from an owned value.

impl<T> BorrowMut<Node<T>> for Tree<T>

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

Mutably borrows from an owned value.

impl<T> Deref for Tree<T>

type Target = Node<T>

The resulting type after dereferencing.

fn deref(&self) -> &Node<T>

Dereferences the value.

impl<T> DerefMut for Tree<T>

fn deref_mut(&mut self) -> &mut Node<T>

Mutably dereferences the value.

impl<T: Clone> Clone for Tree<T>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T> Drop for Tree<T>

fn drop(&mut self)

Executes the destructor for this type.

impl<T: Debug> Debug for Tree<T>

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

Formats the value using the given formatter.

impl<T: Display> Display for Tree<T>

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

Formats the value using the given formatter.

impl<T: PartialEq> PartialEq for Tree<T>

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Self) -> bool

This method tests for !=.

impl<T: Eq> Eq for Tree<T>

impl<T: PartialOrd> PartialOrd for Tree<T>

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T: Ord> Ord for Tree<T>

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

impl<T: Hash> Hash for Tree<T>

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where     H: Hasher,

Feeds a slice of this type into the given [Hasher].

impl<T: Send> Send for Tree<T>

impl<T: Sync> Sync for Tree<T>

impl<T> FromIterator<Tree<T>> for Forest<T>

fn from_iter<I: IntoIterator<Item = Tree<T>>>(iter: I) -> Self

Creates a value from an iterator.

impl<T> Extend<Tree<T>> for Forest<T>

fn extend<I: IntoIterator<Item = Tree<T>>>(&mut self, iter: I)

Extends a collection with the contents of an iterator.

impl<T> Borrow<Forest<T>> for Tree<T>

fn borrow(&self) -> &Forest<T>

Immutably borrows from an owned value.

impl<T> BorrowMut<Forest<T>> for Tree<T>

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

Mutably borrows from an owned value.

impl<T> Extend<Tree<T>> for Node<T>

fn extend<I: IntoIterator<Item = Tree<T>>>(&mut self, iter: I)

Extends a collection with the contents of an iterator.

impl<T> Neg for Tree<T>

type Output = Forest<T>

The resulting type after applying the - operator.

fn neg(self) -> Forest<T>

Performs the unary - operation.

impl<'a, T: Clone> Neg for &'a Tree<T>

type Output = Forest<T>

The resulting type after applying the - operator.

fn neg(self) -> Forest<T>

Performs the unary - operation.

impl<T> Sub<Self> for Tree<T>

type Output = Forest<T>

The resulting type after applying the - operator.

fn sub(self, rhs: Self) -> Forest<T>

Performs the - operation.

impl<'a, T: Clone> Sub<&'a Tree<T>> for Tree<T>

type Output = Forest<T>

The resulting type after applying the - operator.

fn sub(self, rhs: &'a Tree<T>) -> Forest<T>

Performs the - operation.

impl<'a, T: Clone> Sub<Tree<T>> for &'a Tree<T>

type Output = Forest<T>

The resulting type after applying the - operator.

fn sub(self, rhs: Tree<T>) -> Forest<T>

Performs the - operation.

impl<'a, T: Clone> Sub<Self> for &'a Tree<T>

type Output = Forest<T>

The resulting type after applying the - operator.

fn sub(self, rhs: Self) -> Forest<T>

Performs the - operation.

impl<T> Div<Forest<T>> for Tree<T>

type Output = Tree<T>

The resulting type after applying the / operator.

fn div(self, rhs: Forest<T>) -> Tree<T>

Performs the / operation.

impl<'a, T: Clone> Div<&'a Forest<T>> for Tree<T>

type Output = Tree<T>

The resulting type after applying the / operator.

fn div(self, rhs: &'a Forest<T>) -> Tree<T>

Performs the / operation.

impl<'a, T: Clone> Div<Forest<T>> for &'a Tree<T>

type Output = Tree<T>

The resulting type after applying the / operator.

fn div(self, rhs: Forest<T>) -> Tree<T>

Performs the / operation.

impl<'a, T: Clone> Div<&'a Forest<T>> for &'a Tree<T>

type Output = Tree<T>

The resulting type after applying the / operator.

fn div(self, rhs: &'a Forest<T>) -> Tree<T>

Performs the / operation.

impl<T> Div<Tree<T>> for Tree<T>

type Output = Tree<T>

The resulting type after applying the / operator.

fn div(self, rhs: Tree<T>) -> Tree<T>

Performs the / operation.

impl<'a, T: Clone> Div<&'a Tree<T>> for Tree<T>

type Output = Tree<T>

The resulting type after applying the / operator.

fn div(self, rhs: &'a Tree<T>) -> Tree<T>

Performs the / operation.

impl<'a, T: Clone> Div<Tree<T>> for &'a Tree<T>

type Output = Tree<T>

The resulting type after applying the / operator.

fn div(self, rhs: Tree<T>) -> Tree<T>

Performs the / operation.

impl<'a, T: Clone> Div<Self> for &'a Tree<T>

type Output = Tree<T>

The resulting type after applying the / operator.

fn div(self, rhs: Self) -> Tree<T>

Performs the / operation.

impl<T> Div<()> for Tree<T>

type Output = Tree<T>

The resulting type after applying the / operator.

fn div(self, _rhs: ()) -> Tree<T>

Performs the / operation.

impl<'a, T: Clone> Div<()> for &'a Tree<T>

type Output = Tree<T>

The resulting type after applying the / operator.

fn div(self, _rhs: ()) -> Tree<T>

Performs the / operation.

impl<T> Sub<Tree<T>> for Forest<T>

type Output = Forest<T>

The resulting type after applying the - operator.

fn sub(self, rhs: Tree<T>) -> Self

Performs the - operation.

impl<'a, T: Clone> Sub<&'a Tree<T>> for Forest<T>

type Output = Forest<T>

The resulting type after applying the - operator.

fn sub(self, rhs: &'a Tree<T>) -> Self

Performs the - operation.

impl<'a, T: Clone> Sub<Tree<T>> for &'a Forest<T>

type Output = Forest<T>

The resulting type after applying the - operator.

fn sub(self, rhs: Tree<T>) -> Forest<T>

Performs the - operation.

impl<'a, 'b, T: Clone> Sub<&'b Tree<T>> for &'a Forest<T>

type Output = Forest<T>

The resulting type after applying the - operator.

fn sub(self, rhs: &'b Tree<T>) -> Forest<T>

Performs the - operation.

impl<T> From<Tree<T>> for TreeWalk<T>

fn from(tree: Tree<T>) -> Self

Performs the conversion.

impl<T> Into<Tree<T>> for TreeWalk<T>

fn into(self) -> Tree<T>

Performs the conversion.