From 0422e2230dda50bd0d66f2ed9862597b3cddff82 Mon Sep 17 00:00:00 2001
From: Ruben Ayrapetyan <r.ayrapetyan@samsung.com>
Date: Mon, 29 Jun 2015 23:42:49 +0300
Subject: [PATCH] Fix syntax check for case 'eval' or 'arguments' identifiers
 are used for name of function in strict mode.

JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan r.ayrapetyan@samsung.com
---
 jerry-core/parser/js/parser.cpp |  4 ++++
 tests/jerry/func-decl.js        | 13 +++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/jerry-core/parser/js/parser.cpp b/jerry-core/parser/js/parser.cpp
index 5d93fad7c..ff9767d8d 100644
--- a/jerry-core/parser/js/parser.cpp
+++ b/jerry-core/parser/js/parser.cpp
@@ -631,6 +631,8 @@ parse_function_declaration (void)
   token_after_newlines_must_be (TOK_NAME);
   const operand name = literal_operand (token_data_as_lit_cp ());
 
+  syntax_check_for_eval_and_arguments_in_strict_mode (name, is_strict_mode (), tok.loc);
+
   skip_newlines ();
   STACK_PUSH (scopes, scopes_tree_init (STACK_TOP (scopes)));
   serializer_set_scope (STACK_TOP (scopes));
@@ -678,6 +680,8 @@ parse_function_expression (void)
   if (token_is (TOK_NAME))
   {
     const operand name = literal_operand (token_data_as_lit_cp ());
+    syntax_check_for_eval_and_arguments_in_strict_mode (name, is_strict_mode (), tok.loc);
+
     skip_newlines ();
     res = parse_argument_list (VARG_FUNC_EXPR, name, NULL, NULL);
   }
diff --git a/tests/jerry/func-decl.js b/tests/jerry/func-decl.js
index e3d725575..97d0ace93 100644
--- a/tests/jerry/func-decl.js
+++ b/tests/jerry/func-decl.js
@@ -23,3 +23,16 @@ assert ((function() {
     }
     return f();
 })() === 'bar');
+
+function check_syntax_error (s) {
+  try {
+    eval (s);
+    assert (false);
+  }
+  catch (e) {
+    assert (e instanceof SyntaxError);
+  }
+}
+
+check_syntax_error ("'use strict'; function arguments () {}");
+check_syntax_error ("'use strict'; var l = function arguments () {}");