From 3151a460fcfb0ec22a0f76d84383da070209ffcb Mon Sep 17 00:00:00 2001
From: Roland Takacs <rtakacs.u-szeged@partner.samsung.com>
Date: Thu, 23 Jul 2015 14:50:41 +0200
Subject: [PATCH] Support local time output for the Date object.

Convert the primitive time to local time if it is required.

JerryScript-DCO-1.0-Signed-off-by: Roland Takacs rtakacs.u-szeged@partner.samsung.com
---
 .../ecma-builtin-helpers-date.cpp             | 20 +++++++++++--------
 tests/jerry/date-tostring.js                  |  4 ++++
 2 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.cpp b/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.cpp
index 2ee46198f..2a542b802 100644
--- a/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.cpp
+++ b/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-date.cpp
@@ -449,6 +449,7 @@ ecma_date_local_tza ()
    *        Get the real system time. ex: localtime_r, gmtime_r, daylight on Linux
    *        Introduce system macros at first.
    */
+  TODO ("Implement time functions in jerry-libc.");
   return ECMA_NUMBER_ZERO;
 } /* ecma_date_local_tza */
 
@@ -473,6 +474,7 @@ ecma_date_daylight_saving_ta (ecma_number_t time) /**< time value */
    *        Get the real system time. ex: localtime_r, gmtime_r, daylight on Linux
    *        Introduce system macros at first.
    */
+  TODO ("Implement time functions in jerry-libc.");
   return ECMA_NUMBER_ZERO;
 } /* ecma_date_daylight_saving_ta */
 
@@ -934,18 +936,21 @@ ecma_date_value_to_string (ecma_number_t datetime_num, /**<datetime */
   else
   {
     ecma_string_t *output_str_p;
-    ecma_number_t milliseconds = ecma_date_ms_from_time (datetime_num);
+    ecma_number_t milliseconds;
 
-    if (timezone == ECMA_DATE_UTC)
-    {
-      output_str_p = ecma_get_magic_string (LIT_MAGIC_STRING__EMPTY);
-      ecma_date_insert_num_with_sep (&output_str_p, milliseconds, LIT_MAGIC_STRING_Z_CHAR, 3);
-    }
-    else
+    if (timezone == ECMA_DATE_LOCAL)
     {
+      datetime_num = ecma_date_local_time (datetime_num);
+      milliseconds = ecma_date_ms_from_time (datetime_num);
       output_str_p = ecma_new_ecma_string_from_number (milliseconds);
       ecma_date_insert_leading_zeros (&output_str_p, milliseconds, 3);
     }
+    else /* ECMA_DATE_UTC */
+    {
+      milliseconds = ecma_date_ms_from_time (datetime_num);
+      output_str_p = ecma_get_magic_string (LIT_MAGIC_STRING__EMPTY);
+      ecma_date_insert_num_with_sep (&output_str_p, milliseconds, LIT_MAGIC_STRING_Z_CHAR, 3);
+    }
 
     ecma_number_t seconds = ecma_date_sec_from_time (datetime_num);
     ecma_date_insert_num_with_sep (&output_str_p, seconds, LIT_MAGIC_STRING_DOT_CHAR, 2);
@@ -991,7 +996,6 @@ ecma_completion_value_t
 ecma_date_object_to_string (ecma_value_t this_arg, /**< this argument */
                             ecma_date_timezone_t timezone) /**< timezone */
 {
-  TODO ("Add support for local time zone output.");
   ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();
 
   if (!ecma_is_value_object (this_arg)
diff --git a/tests/jerry/date-tostring.js b/tests/jerry/date-tostring.js
index 8c23876e1..fcf6bcb04 100644
--- a/tests/jerry/date-tostring.js
+++ b/tests/jerry/date-tostring.js
@@ -111,3 +111,7 @@ assert (typeof Date() != typeof (new Date ()));
 assert (Date () == (new Date ()).toString ());
 assert (Date (2015, 1, 1) == (new Date ()).toString ());
 assert (Date (Number.NaN) == Date ());
+
+// Fixme: remove these cases when TZA and DST are supported.
+assert (new Date ("2015-07-08T11:29:05.023-02:00").toString() == "2015-07-08T13:29:05.023");
+assert (new Date ("2015-07-08T11:29:05.023-02:00").toLocaleString() == "2015-07-08T13:29:05.023");