Fixed RET functionnality misbehaviour

tests/non_reg/test_sheerka_non_reg.py

@@ -1,6 +1,6 @@
 import pytest
 from core.builtin_concepts import BuiltinConcepts
-from core.concept import Concept, PROPERTIES_TO_SERIALIZE, simplec, CMV, NotInit
+from core.concept import Concept, PROPERTIES_TO_SERIALIZE, simplec, CMV, NotInit, CC
 from evaluators.MutipleSameSuccessEvaluator import MultipleSameSuccessEvaluator
 from evaluators.PythonEvaluator import PythonEvalError
 from parsers.BaseNodeParser import SyaAssociativity
@@ -976,6 +976,28 @@ as:
         assert res[0].status
         assert sheerka.isa(sheerka.new("one"), sheerka.new("number"))
 
+    def test_i_can_evaluate_sya_and_ret_concepts(self):
+        init = [
+            "def concept one as 1",
+            "def concept plus from a plus b as a + b",
+            "def concept the a ret a"
+        ]
+
+        sheerka = self.init_scenario(init)
+        the = sheerka.get_by_name("the a")
+
+        # res = sheerka.evaluate_user_input("one plus the one")
+        # assert res[0].status
+        # plus = res[0].body
+        # assert isinstance(plus, Concept)
+        # assert plus.name == "plus"
+        # assert plus.compiled["a"] == sheerka.new("one")
+        # assert plus.compiled["b"] == CC(the, a=sheerka.new("one"))
+
+        res = sheerka.evaluate_user_input("eval one plus the one")
+        assert res[0].status
+        assert res[0].body == 2
+
 
 class TestSheerkaNonRegFile(TestUsingFileBasedSheerka):
     def test_i_can_def_several_concepts(self):