Implemented FunctionParser

tests/evaluators/test_LexerNodeEvaluator.py

@@ -27,7 +27,7 @@ class TestLexerNodeEvaluator(TestUsingMemoryBasedSheerka):
         for fragment in fragments:
             if isinstance(fragment, str):
                 node = PythonNode(fragment, ast.parse(fragment.strip(), mode="eval"))
-                nodes.append(SourceCodeNode(node, 0, 0, [], fragment))
+                nodes.append(SourceCodeNode(0, 0, [], fragment, node))
             else:
                 nodes.append(ConceptNode(fragment, 0, 0, [], fragment.name))
 
@@ -82,10 +82,9 @@ class TestLexerNodeEvaluator(TestUsingMemoryBasedSheerka):
         wrapper = result.body
         return_value = result.body.body
 
-        assert result.who == evaluator.name
+        assert result.who == "parsers.PythonWithConcepts"
         assert result.status
         assert context.sheerka.isinstance(wrapper, BuiltinConcepts.PARSER_RESULT)
-        assert wrapper.parser == evaluator
         assert wrapper.source == "foo + 1"
 
         assert return_value == PythonNode('foo + 1', ast.parse("__C__foo__C__ + 1", mode="eval"))