From 810e3c7ae875dfe2434e91c4012161738ef5bc79 Mon Sep 17 00:00:00 2001
From: Ruben Ayrapetyan <r.ayrapetyan@samsung.com>
Date: Fri, 10 Apr 2015 10:24:27 +0300
Subject: [PATCH] Implementation of Function.prototype.call.

---
 .../ecma-builtin-function-prototype.cpp       | 27 ++++++++++++++++--
 tests/jerry/function.prototype.js             | 28 +++++++++++++++++++
 2 files changed, 52 insertions(+), 3 deletions(-)
 create mode 100644 tests/jerry/function.prototype.js

diff --git a/jerry-core/ecma/builtin-objects/ecma-builtin-function-prototype.cpp b/jerry-core/ecma/builtin-objects/ecma-builtin-function-prototype.cpp
index 24136a67d..b0b715f8c 100644
--- a/jerry-core/ecma/builtin-objects/ecma-builtin-function-prototype.cpp
+++ b/jerry-core/ecma/builtin-objects/ecma-builtin-function-prototype.cpp
@@ -20,8 +20,7 @@
 #include "ecma-gc.h"
 #include "ecma-globals.h"
 #include "ecma-helpers.h"
-#include "ecma-objects.h"
-#include "ecma-string-object.h"
+#include "ecma-function-object.h"
 #include "ecma-try-catch-macro.h"
 #include "jrt.h"
 
@@ -88,7 +87,29 @@ ecma_builtin_function_prototype_object_call (const ecma_value_t& this_arg, /**<
                                              const ecma_value_t* arguments_list_p, /**< list of arguments */
                                              ecma_length_t arguments_number) /**< number of arguments */
 {
-  ECMA_BUILTIN_CP_UNIMPLEMENTED (this_arg, arguments_list_p, arguments_number);
+  if (!ecma_op_is_callable (this_arg))
+  {
+    return ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_TYPE));
+  }
+  else
+  {
+    ecma_object_t *func_obj_p = ecma_get_object_from_value (this_arg);
+
+    if (arguments_number == 0)
+    {
+      return ecma_op_function_call (func_obj_p,
+                                    ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED),
+                                    NULL,
+                                    0);
+    }
+    else
+    {
+      return ecma_op_function_call (func_obj_p,
+                                    arguments_list_p [0],
+                                    (arguments_number == 1u) ? NULL : (arguments_list_p + 1),
+                                    (ecma_length_t) (arguments_number - 1u));
+    }
+  }
 } /* ecma_builtin_function_prototype_object_call */
 
 /**
diff --git a/tests/jerry/function.prototype.js b/tests/jerry/function.prototype.js
new file mode 100644
index 000000000..4142f5731
--- /dev/null
+++ b/tests/jerry/function.prototype.js
@@ -0,0 +1,28 @@
+// Copyright 2015 Samsung Electronics Co., Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+function f (arg1, arg2, arg3)
+{
+  this.string = arg1;
+  this.number = arg2;
+  this.boolean = arg3;
+}
+
+var this_arg = {};
+
+f.call (this_arg, 's', 1, true, null);
+
+assert (this_arg.string  === 's');
+assert (this_arg.number  === 1);
+assert (this_arg.boolean === true);