Improve get-value.

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

Author: zherczeg

jerry-core/ecma/base/ecma-helpers-string.c

@@ -222,12 +222,11 @@ ecma_new_ecma_string_from_code_unit (ecma_char_t code_unit) /**< code unit */
 } /* ecma_new_ecma_string_from_code_unit */
 
 /**
- * Allocate new ecma-string and fill it with ecma-number
- *
- * @return pointer to ecma-string descriptor
+ * Initialize an ecma-string with an ecma-number
  */
-ecma_string_t *
-ecma_new_ecma_string_from_uint32 (uint32_t uint32_number) /**< UInt32-represented ecma-number */
+inline void __attr_always_inline___
+ecma_init_ecma_string_from_uint32 (ecma_string_t *string_desc_p, /**< ecma-string */
+                                   uint32_t uint32_number) /**< uint32 value of the string */
 {
   lit_utf8_byte_t byte_buf[ECMA_MAX_CHARS_IN_STRINGIFIED_UINT32];
   lit_utf8_byte_t *buf_p = byte_buf + ECMA_MAX_CHARS_IN_STRINGIFIED_UINT32;
@@ -245,13 +244,24 @@ ecma_new_ecma_string_from_uint32 (uint32_t uint32_number) /**< UInt32-represente
 
   lit_utf8_size_t size = (lit_utf8_size_t) (byte_buf + ECMA_MAX_CHARS_IN_STRINGIFIED_UINT32 - buf_p);
 
-  ecma_string_t *string_desc_p = ecma_alloc_string ();
   string_desc_p->refs_and_container = ECMA_STRING_CONTAINER_UINT32_IN_DESC | ECMA_STRING_REF_ONE;
   string_desc_p->hash = lit_utf8_string_calc_hash (buf_p, size);
 
   string_desc_p->u.common_field = 0;
   string_desc_p->u.uint32_number = uint32_number;
+} /* ecma_init_ecma_string_from_uint32 */
+
+/**
+ * Allocate new ecma-string and fill it with ecma-number
+ *
+ * @return pointer to ecma-string descriptor
+ */
+ecma_string_t *
+ecma_new_ecma_string_from_uint32 (uint32_t uint32_number) /**< uint32 value of the string */
+{
+  ecma_string_t *string_desc_p = ecma_alloc_string ();
 
+  ecma_init_ecma_string_from_uint32 (string_desc_p, uint32_number);
   return string_desc_p;
 } /* ecma_new_ecma_string_from_uint32 */
 

jerry-core/ecma/base/ecma-helpers.h

@@ -179,6 +179,7 @@ extern bool ecma_string_get_array_index (const ecma_string_t *, uint32_t *);
 extern lit_utf8_size_t __attr_return_value_should_be_checked___
 ecma_string_to_utf8_string (const ecma_string_t *, lit_utf8_byte_t *, lit_utf8_size_t);
 extern const lit_utf8_byte_t *ecma_string_raw_chars (const ecma_string_t *, lit_utf8_size_t *, bool *);
+extern void ecma_init_ecma_string_from_uint32 (ecma_string_t *, uint32_t);
 
 extern bool ecma_compare_ecma_strings_equal_hashes (const ecma_string_t *, const ecma_string_t *);
 extern bool ecma_compare_ecma_strings (const ecma_string_t *, const ecma_string_t *);

jerry-core/vm/vm.c

@@ -69,6 +69,43 @@ static ecma_value_t
 vm_op_get_value (ecma_value_t object, /**< base object */
                  ecma_value_t property) /**< property name */
 {
+  if (ecma_is_value_object (object))
+  {
+    ecma_object_t *object_p = ecma_get_object_from_value (object);
+    ecma_string_t *property_name_p = NULL;
+    ecma_string_t uint32_string;
+
+    if (ecma_is_value_integer_number (property))
+    {
+      ecma_integer_value_t int_value = ecma_get_integer_from_value (property);
+
+      if (int_value >= 0)
+      {
+        /* Statically allocated string for searching. */
+        ecma_init_ecma_string_from_uint32 (&uint32_string, (uint32_t) int_value);
+        property_name_p = &uint32_string;
+      }
+    }
+    else if (ecma_is_value_string (property))
+    {
+      property_name_p = ecma_get_string_from_value (property);
+    }
+
+    if (property_name_p != NULL)
+    {
+      ecma_property_t *property_p = ecma_lcache_lookup (object_p, property_name_p);
+
+      if (property_p != NULL &&
+          ECMA_PROPERTY_GET_TYPE (property_p) == ECMA_PROPERTY_TYPE_NAMEDDATA)
+      {
+        return ecma_fast_copy_value (ecma_get_named_data_property_value (property_p));
+      }
+
+      /* There is no need to free the name. */
+      return ecma_op_get_value_object_base (object, property_name_p);
+    }
+  }
+
   if (unlikely (ecma_is_value_undefined (object) || ecma_is_value_null (object)))
   {
     return ecma_raise_type_error (ECMA_ERR_MSG (""));
@@ -83,20 +120,6 @@ vm_op_get_value (ecma_value_t object, /**< base object */
 
   ecma_string_t *property_name_p = ecma_get_string_from_value (prop_to_string_result);
 
-  if (ecma_is_value_object (object))
-  {
-    ecma_object_t *object_p = ecma_get_object_from_value (object);
-
-    ecma_property_t *property_p = ecma_lcache_lookup (object_p, property_name_p);
-
-    if (property_p != NULL &&
-        ECMA_PROPERTY_GET_TYPE (property_p) == ECMA_PROPERTY_TYPE_NAMEDDATA)
-    {
-      ecma_deref_ecma_string (property_name_p);
-      return ecma_fast_copy_value (ecma_get_named_data_property_value (property_p));
-    }
-  }
-
   ecma_value_t get_value_result = ecma_op_get_value_object_base (object, property_name_p);
 
   ecma_deref_ecma_string (property_name_p);