Initialize empty value to dictionaries without type given

advikkabra · czgdp1807 · commit dae7f50d886e · 2024-05-17T18:41:49.000+05:30
diff --git a/src/lpython/semantics/python_ast_to_asr.cpp b/src/lpython/semantics/python_ast_to_asr.cpp
@@ -2568,6 +2568,15 @@ class CommonVisitor : public AST::BaseVisitor<Struct> {
         ASR::Variable_t* v_variable = ASR::down_cast<ASR::Variable_t>(v_sym);
         std::string var_name = v_variable->m_name;
         ASR::ttype_t* type = v_variable->m_type;
+        if (!init_expr && ASR::is_a<ASR::Dict_t>(*type)) {
+            ASR::ttype_t *key_type = ASR::down_cast<ASR::Dict_t>(type)->m_key_type;
+            ASR::ttype_t *value_type = ASR::down_cast<ASR::Dict_t>(type)->m_value_type;
+            ASR::ttype_t *dict_type = ASRUtils::TYPE(ASR::make_Dict_t(al, loc,
+                                                 key_type, value_type));
+            init_expr = ASRUtils::EXPR(ASR::make_DictConstant_t(al, loc, 
+                  nullptr, 0, nullptr, 0, type));
+        }
+
         if( init_expr ) {
             value = ASRUtils::expr_value(init_expr);
             SetChar variable_dependencies_vec;
