Continued work on parser, now calling functions and rolling correctly

app/imports/parser/parseTree/ParseNode.js

@@ -1,4 +1,17 @@
 export default class ParseNode {
+  constructor({previousNodes, detail}){
+    this.inheritDetails(previousNodes);
+    if (detail) this.pushDetails([detail]);
+  }
+  inheritDetails(nodes){
+    if (!nodes || !nodes.length) return;
+    nodes.forEach(node => this.pushDetails(node.details));
+  }
+  pushDetails(details){
+    if (!details || !details.length) return;
+    if (!this.details) this.details = [];
+    details.forEach(detail => this.details.push(detail));
+  }
   compile(){
     // Returns a ParseNode, a ConstantNode if possible
     throw new Meteor.Error('Compile not implemented on ' + this.constructor.name);
@@ -7,11 +20,11 @@ export default class ParseNode {
     throw new Meteor.Error('toString not implemented on ' + this.constructor.name);
   }
 	// Compile, but turn rolls into arrays
-  roll(){
-    return this.compile();
+  roll(scope){
+    return this.compile(scope);
   }
 	// Compile, turn rolls into arrays, and reduce those arrays into single values
-	reduce(){
-		return this.roll();
+	reduce(scope){
+		return this.roll(scope);
 	}
 }