fix: Null in pretty print

thygesteffensen · thygesteffensen · commit 467809ac3ae3 · 2021-01-28T14:10:11.000+01:00
diff --git a/PowerAutomateMockUp/ExpressionParser/Rules/ExpressionRule.cs b/PowerAutomateMockUp/ExpressionParser/Rules/ExpressionRule.cs
@@ -34,8 +34,8 @@ public ValueContainer Evaluate()
 
         public string PrettyPrint()
         {
-            var seed = _args.First().PrettyPrint();
-            var argumentList = _args.Skip(1).Aggregate(seed, (s, rule) => s + ", " + rule.PrettyPrint());
+            var seed = _args?.First().PrettyPrint();
+            var argumentList = _args?.Skip(1).Aggregate(seed, (s, rule) => s + ", " + rule.PrettyPrint());
             return $"{FunctionName}({argumentList})";
         }
     }

Original file line number	Diff line number	Diff line change
`@@ -34,8 +34,8 @@ public ValueContainer Evaluate()`
`34`	`34`
`35`	`35`	`public string PrettyPrint()`
`36`	`36`	`{`
`37`		`- var seed = _args.First().PrettyPrint();`
`38`		`- var argumentList = _args.Skip(1).Aggregate(seed, (s, rule) => s + ", " + rule.PrettyPrint());`
	`37`	`+ var seed = _args?.First().PrettyPrint();`
	`38`	`+ var argumentList = _args?.Skip(1).Aggregate(seed, (s, rule) => s + ", " + rule.PrettyPrint());`
`39`	`39`	`return $"{FunctionName}({argumentList})";`
`40`	`40`	`}`
`41`	`41`	`}`