Macro ego_binary_tree::binary_tree

macro_rules! binary_tree {
    (@ $n:ident { }) => { ... };
    (@ $n:ident { right: $value:expr => $children:tt$(,)* }) => { ... };
    (@ $n:ident { left: $value:expr => $children:tt$(,)* }) => { ... };
    (@ $n:ident { left: $value:expr$(,)* }) => { ... };
    (@ $n:ident { right: $value:expr$(,)* }) => { ... };
    (@ $n:ident { left: $left_value:expr, right: $right_value:expr => $right_children:tt$(,)* }) => { ... };
    (@ $n:ident { left: $left_value:expr, right: $right_value:expr$(,)* }) => { ... };
    (@ $n:ident { left: $left_value:expr => $left_children:tt, right: $right_value:expr$(,)* }) => { ... };
    (@ $n:ident { left: $left_value:expr => $left_children:tt, right: $right_value:expr => $right_children:tt$(,)* }) => { ... };
    ($root:expr) => { ... };
    ($root:expr => $children:tt) => { ... };
}

Creates a binary tree from expressions.

Examples

#[macro_use] extern crate ego_binary_tree;
let tree = binary_tree!("root");

#[macro_use] extern crate ego_binary_tree;
let tree = binary_tree! {
    "root" => {
        left: "child a",
        right: "child b" => {
            right: "grandchild a",
        },
    }
};