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Fix detection of Use Strict directive not in the start of Directive Prologue.

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JerryScript-DCO-1.0-Signed-off-by: Andrey Shitov a.shitov@samsung.com
This commit is contained in:
Andrey Shitov 2015-07-08 13:52:05 +03:00
parent 146ac15b5f
commit 17cdc35d6d
1 changed files with 17 additions and 4 deletions
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21
jerry-core/parser/js/parser.cpp
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@ -2881,11 +2881,24 @@ preparse_scope (bool is_global)
bool is_ref_eval_identifier = false;
bool is_use_strict = false;
if (token_is (TOK_STRING) && lit_literal_equal_type_cstr (lit_get_literal_by_cp (token_data_as_lit_cp ()),
"use strict"))
/*
* Check Directive Prologue for Use Strict directive (see ECMA-262 5.1 section 14.1)
*/
while (token_is (TOK_STRING))
{
scopes_tree_set_strict_mode (STACK_TOP (scopes), true);
is_use_strict = true;
if (lit_literal_equal_type_cstr (lit_get_literal_by_cp (token_data_as_lit_cp ()), "use strict"))
{
scopes_tree_set_strict_mode (STACK_TOP (scopes), true);
is_use_strict = true;
break;
}
skip_newlines ();
if (token_is (TOK_SEMICOLON))
{
skip_newlines ();
}
}
lexer_set_strict_mode (scopes_tree_strict_mode (STACK_TOP (scopes)));