Added RET keyword

src/core/builtin_helpers.py

@@ -314,11 +314,12 @@ def get_lexer_nodes(return_values, start, tokens):
     return lexer_nodes
 
 
-def ensure_evaluated(context, concept):
+def ensure_evaluated(context, concept, eval_body=True):
     """
     Evaluate a concept is not already evaluated
     :param context:
     :param concept:
+    :param eval_body:
     :return:
     """
     if concept.metadata.is_evaluated:
@@ -326,11 +327,15 @@ def ensure_evaluated(context, concept):
 
     # do not try to evaluate concept that are not fully initialized
     for var in concept.metadata.variables:
-        if var[0] not in concept.values or concept.get_value(var[0]) == NotInit:
+        # to code
+        if var[1] is None and \
+            var[0] not in concept.compiled and \
+            (var[0] not in concept.values or concept.get_value(var[0]) == NotInit):
             return concept
 
     with context.push(BuiltinConcepts.EVALUATE_CONCEPT, concept, desc=f"Evaluating concept {concept}") as sub_context:
-        sub_context.local_hints.add(BuiltinConcepts.EVAL_BODY_REQUESTED)
+        if eval_body:
+            sub_context.local_hints.add(BuiltinConcepts.EVAL_BODY_REQUESTED)
         evaluated = context.sheerka.evaluate_concept(sub_context, concept)
         sub_context.add_values(return_values=evaluated)