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Ensure that the constructed object in [[Set]] operation with primitive base cannot be extensible (#2917)

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Related part of the standard: https://www.ecma-international.org/ecma-262/5.1/#sec-8.7 1st note.

This patch fixes #2914.

Co-authored-by: Gabor Loki loki@inf.u-szeged.hu
JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
This commit is contained in:
Robert Fancsik
2019-06-24 11:12:23 +02:00
committed by GitHub
parent cbd41df5eb
commit 44b21de7fc
2 changed files with 56 additions and 2 deletions
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jerry-core/vm/vm.c
+8 -2
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@@ -144,6 +144,8 @@ vm_op_set_value (ecma_value_t object, /**< base object */
ecma_value_t value, /**< ecma value */
bool is_strict) /**< strict mode */
{
ecma_object_t * object_p;
if (JERRY_UNLIKELY (!ecma_is_value_object (object)))
{
ecma_value_t to_object = ecma_op_to_object (object);
@@ -168,11 +170,15 @@ vm_op_set_value (ecma_value_t object, /**< base object */
#endif /* ENABLED (JERRY_ERROR_MESSAGES) */
}
object = to_object;
object_p = ecma_get_object_from_value (to_object);
ecma_set_object_extensible (object_p, false);
}
else
{
object_p = ecma_get_object_from_value (object);
}
ecma_string_t *property_p;
ecma_object_t *object_p = ecma_get_object_from_value (object);
if (!ecma_is_value_prop_name (property))
{