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No other objects should be allocated before a typedarray is fully (#1619)

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initialized.

All members of an object must be valid when the garbage collector runs,
so no allocations are allowed during typed array initialization.

Fix issue #1605
JerryScript-DCO-1.0-Signed-off-by: Zidong Jiang zidong.jiang@intel.com
This commit is contained in:
Zidong Jiang
2017-02-25 09:23:44 +08:00
committed by GitHub
parent 21340e6b02
commit f1d43784f5
1 changed files with 6 additions and 2 deletions
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jerry-core/ecma/operations/ecma-typedarray-object.c
+6 -2
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@@ -214,6 +214,9 @@ ecma_typedarray_create_object_with_length (ecma_length_t array_length, /**< leng
lit_magic_string_id_t class_id) /**< class name of the typedarray */
{
ecma_length_t byte_length = array_length << element_size_shift;
ecma_value_t new_arraybuffer_p = ecma_make_object_value (ecma_arraybuffer_new_object (byte_length));
ecma_object_t *object_p = ecma_create_object (proto_p,
sizeof (ecma_extended_object_t),
ECMA_OBJECT_TYPE_PSEUDO_ARRAY);
@@ -222,8 +225,9 @@ ecma_typedarray_create_object_with_length (ecma_length_t array_length, /**< leng
ext_object_p->u.pseudo_array.u1.class_id = class_id;
ext_object_p->u.pseudo_array.type = ECMA_PSEUDO_ARRAY_TYPEDARRAY;
ext_object_p->u.pseudo_array.extra_info = element_size_shift;
ext_object_p->u.pseudo_array.u2.arraybuffer = ecma_make_object_value (ecma_arraybuffer_new_object (byte_length));
ecma_free_value (ext_object_p->u.pseudo_array.u2.arraybuffer);
ext_object_p->u.pseudo_array.u2.arraybuffer = new_arraybuffer_p;
ecma_free_value (new_arraybuffer_p);
return object_p;
} /* !ecma_typedarray_create_object_with_length */