Check for empty lists more gracefully

jank-lang · Jan 16, 2024 · 04f64f7 · 04f64f7
1 parent e0b531a
commit 04f64f7
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/include/cpp/jank/runtime/detail/native_persistent_list.hpp b/include/cpp/jank/runtime/detail/native_persistent_list.hpp
@@ -178,6 +178,11 @@ namespace jank::runtime::detail
       return data ? data->length : 0;
     }
 
+    native_bool empty() const
+    {
+      return data ? data->length == 0 : true;
+    }
+
     option<T> first() const
     {
       if(data)

diff --git a/src/cpp/jank/runtime/context.cpp b/src/cpp/jank/runtime/context.cpp
@@ -512,7 +512,7 @@ namespace jank::runtime
         }
         else
         {
-          if(typed_o->data.data->length == 0)
+          if(typed_o->data.empty())
           {
             return typed_o;
           }
-Original file line number
+Diff line change
@@ Expand Up / @@ -512,7 +512,7 @@ namespace jank::runtime @@
             }
             else
             {
-              if(typed_o->data.data->length == 0)
+              if(typed_o->data.empty())
               {
                 return typed_o;
               }
@@ Expand Down @@