Storing Number as UInt32 in ecma-string if the Number may be represented as UInt32. Calculating length for Number-represented ecma-strings in ecma-string constructor. loop_arithmetics_1kk.js: 2.9112 -> 2.8536.

2014-08-25 19:58:55 +04:00
parent 57965bf160
commit 8998189bc0
4 changed files with 105 additions and 104 deletions
@@ -57,23 +57,29 @@ ecma_zt_string_to_number (const ecma_char_t *str_p) /**< zero-terminated string

 /**
 * ECMA-defined conversion of UInt32 to String (zero-terminated).
+ *
+ * @return number of bytes copied to buffer
 */
-void
+ecma_length_t
 ecma_uint32_to_string (uint32_t value, /**< value to convert */
                       ecma_char_t *out_buffer_p, /**< buffer for zero-terminated string */
-                       size_t buffer_size) /**< size of buffer */
+                       ssize_t buffer_size) /**< size of buffer */
 {
  FIXME (Implement according to ECMA);

  ecma_char_t *p = (ecma_char_t*) ((uint8_t*) out_buffer_p + buffer_size) - 1;
  *p-- = '\0';

+  ecma_length_t bytes_copied = 1;
+
  do
  {
    JERRY_ASSERT (p != out_buffer_p);

    *p-- = (ecma_char_t) ("0123456789"[value % 10]);
    value /= 10;
+
+    bytes_copied++;
  }
  while (value != 0);

@@ -82,6 +88,8 @@ ecma_uint32_to_string (uint32_t value, /**< value to convert */
    ssize_t bytes_to_move = ((uint8_t*) out_buffer_p + buffer_size) - (uint8_t*) p;
    __memmove (out_buffer_p, p, (size_t) bytes_to_move);
  }
+
+  return bytes_copied;
 } /* ecma_uint32_to_string */

 /**