Function mt_dom::diff::diff_with_key

pub fn diff_with_key<'a, NS, TAG, LEAF, ATT, VAL>(
    old_node: &'a Node<NS, TAG, LEAF, ATT, VAL>, 
    new_node: &'a Node<NS, TAG, LEAF, ATT, VAL>, 
    key: &ATT
) -> Vec<Patch<'a, NS, TAG, LEAF, ATT, VAL>> where
    NS: PartialEq + Clone + Debug,
    TAG: PartialEq + Debug,
    LEAF: PartialEq + Clone + Debug,
    ATT: PartialEq + Clone + Debug,
    VAL: PartialEq + Clone + Debug, 

Return the patches needed for old_node to have the same DOM as new_node

Agruments

• old_node - the old virtual dom node
• new_node - the new virtual dom node
• key - the literal name of key attribute, ie: “key”

Example

use mt_dom::{diff::*, patch::*, *};

pub type MyNode =
   Node<&'static str, &'static str, &'static str, &'static str, &'static str>;

let old: MyNode = element(
    "main",
    vec![attr("class", "container")],
    vec![
        element("div", vec![attr("key", "1")], vec![]),
        element("div", vec![attr("key", "2")], vec![]),
    ],
);

let new: MyNode = element(
    "main",
    vec![attr("class", "container")],
    vec![element("div", vec![attr("key", "2")], vec![])],
);

let diff = diff_with_key(&old, &new, &"key");
assert_eq!(
    diff,
    vec![Patch::remove_node(
        Some(&"div"),
        TreePath::new(vec![ 0]),
    )
    ]
);