Minor changes

NeilKleistGao · Jan 24, 2025 · 18e52bb · 18e52bb
1 parent 0ee0a99
commit 18e52bb
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/Src/Parser/ParseResults.cs b/Src/Parser/ParseResults.cs
@@ -35,7 +35,7 @@ public abstract class BoolLiteral<TRes, TEnv> : Literal<TRes, TEnv> {
   }
 
   public abstract class StringLiteral<TRes, TEnv> : Literal<TRes, TEnv> {
-    public string Value { get; set; }
+    public string? Value { get; set; }
   }
 
   public abstract class Symbol<TRes, TEnv>: IEvaluatable<TRes, TEnv> {

diff --git a/Src/Runtime/EvaluationNodes.cs b/Src/Runtime/EvaluationNodes.cs
@@ -33,7 +33,7 @@ public EvalBoolLit(bool b) {
 
   public class EvalStringLit: StringLiteral<Value, Environment> {
     public override Value Evaluate(Environment env) {
-      return new LiteralValue<string>(Value);
+      return new LiteralValue<string>(Value??"");
     }
 
     public EvalStringLit(string s) {