Graph Idea

gistfile1.txt

var graphDefinition = {
    'somewhere': 'there is a ${./over/therainbow}',
    'over':{
        'therainbow' : 'pot of gold'
    },

    'value': 'genius',

    'act':{
        'of': '${../value}'
    }
};

var Graph = (function(){
    var graph;        
    
    var Graph = function(def){
        graph = def;
    };
    
    function translate(graph){
        return graph;
    }
    
    Graph.prototype = {
    
        mutate: function(func){
            var newGraph = func.call(func, Object.create(graph));
            console.log("original was not changed:", !graph.changed);
            console.log("we have potentially a new graph:", newGraph);
            
            // find differentials and update the source for the differential        
            // perhaps make it part of a mutate cycle that combines multiple mutations at once?
            // broadcast mutation
        },
    
        read: function(func){
            var translatedGraph = Object.freeze(Object.create(translate(graph)));
            func.call(func, translatedGraph);
        },
    
        getChildGraph: function(){
            
        }
    
    };
    return Graph;
})();

var testGraph = new Graph(graphDefinition);
testGraph.read(function(graph){
    graph.x = true;
    console.log("mutating is not allowed here:", !graph.x);
});
testGraph.mutate(function(graph){
    graph.changed = "true";
    return graph;
});