Macro graph 

macro_rules! graph {
    ($($source:expr => $target:expr),+ $(,)?) => { ... };
}

Creates a graph from the given pairs.

This macro creates a Graph and adds nodes and edges based on the provided source-target pairs. It’s primarily intended for use in tests and examples to quickly set up graphs, and is not optimized for performance. Additionally, the node type must implement Copy.

In case you need a Builder, e.g. to inspect the graph before building or to print it to DOT format, use the graph_builder! macro.

Examples

use zrx_graph::graph;

// Create graph from pairs
let graph = graph! {
    "a" => "b", "a" => "c",
    "b" => "c",
};