Improve the performance of resolve reference. (#1453)

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com

jerry-core/ecma/operations/ecma-reference.c

@@ -19,6 +19,7 @@
 #include "ecma-gc.h"
 #include "ecma-globals.h"
 #include "ecma-helpers.h"
+#include "ecma-lcache.h"
 #include "ecma-lex-env.h"
 #include "ecma-objects.h"
 #include "ecma-reference.h"
@@ -88,6 +89,30 @@ ecma_op_resolve_reference_value (ecma_object_t *lex_env_p, /**< starting lexical
 
       ecma_object_t *binding_obj_p = ecma_get_lex_env_binding_object (lex_env_p);
 
+      ecma_property_t *property_p = ecma_lcache_lookup (binding_obj_p, name_p);
+
+      if (property_p != NULL)
+      {
+        ecma_property_value_t *prop_value_p = ECMA_PROPERTY_VALUE_PTR (property_p);
+
+        if (ECMA_PROPERTY_GET_TYPE (*property_p) == ECMA_PROPERTY_TYPE_NAMEDDATA)
+        {
+          return ecma_fast_copy_value (prop_value_p->value);
+        }
+
+        JERRY_ASSERT (ECMA_PROPERTY_GET_TYPE (*property_p) == ECMA_PROPERTY_TYPE_NAMEDACCESSOR);
+
+        ecma_object_t *getter_p = ecma_get_named_accessor_property_getter (prop_value_p);
+
+        if (getter_p == NULL)
+        {
+          return ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED);
+        }
+
+        ecma_value_t base_value = ecma_make_object_value (binding_obj_p);
+        return ecma_op_function_call (getter_p, base_value, NULL, 0);
+      }
+
       ecma_value_t prop_value = ecma_op_object_find (binding_obj_p, name_p);
 
       if (ecma_is_value_found (prop_value))