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Reduce the memory consumption of function objects. (#1954)

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Several properties of strict and bound functions are moved to
lazy property instantiation. The memory consumption of bound
functions are also reduced when only a this is present.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2017-08-30 14:17:35 +02:00
committed by Dániel Bátyai
parent 82a94d0f88
commit e897858c64
10 changed files with 275 additions and 232 deletions
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jerry-core/ecma/base/ecma-gc.c
+26 -5
View File
@@ -336,12 +336,23 @@ ecma_gc_mark (ecma_object_t *object_p) /**< object to mark from */
ecma_gc_set_object_visited (target_func_obj_p, true);
ecma_length_t args_length = ext_function_p->u.bound_function.args_length;
ecma_value_t args_len_or_this = ext_function_p->u.bound_function.args_len_or_this;
if (!ecma_is_value_integer_number (args_len_or_this))
{
if (ecma_is_value_object (args_len_or_this))
{
ecma_gc_set_object_visited (ecma_get_object_from_value (args_len_or_this), true);
}
break;
}
ecma_integer_value_t args_length = ecma_get_integer_from_value (args_len_or_this);
ecma_value_t *args_p = (ecma_value_t *) (ext_function_p + 1);
JERRY_ASSERT (args_length > 0);
for (ecma_length_t i = 0; i < args_length; i++)
for (ecma_integer_value_t i = 0; i < args_length; i++)
{
if (ecma_is_value_object (args_p[i]))
{
@@ -659,15 +670,25 @@ ecma_gc_sweep (ecma_object_t *object_p) /**< object to free */
if (object_type == ECMA_OBJECT_TYPE_BOUND_FUNCTION)
{
ecma_extended_object_t *ext_function_p = (ecma_extended_object_t *) object_p;
ecma_length_t args_length = ext_function_p->u.bound_function.args_length;
ecma_value_t args_len_or_this = ext_function_p->u.bound_function.args_len_or_this;
if (!ecma_is_value_integer_number (args_len_or_this))
{
ecma_free_value_if_not_object (args_len_or_this);
ecma_dealloc_extended_object (ext_function_p, sizeof (ecma_extended_object_t));
return;
}
ecma_integer_value_t args_length = ecma_get_integer_from_value (args_len_or_this);
ecma_value_t *args_p = (ecma_value_t *) (ext_function_p + 1);
for (ecma_length_t i = 0; i < args_length; i++)
for (ecma_integer_value_t i = 0; i < args_length; i++)
{
ecma_free_value_if_not_object (args_p[i]);
}
size_t args_size = args_length * sizeof (ecma_value_t);
size_t args_size = ((size_t) args_length) * sizeof (ecma_value_t);
ecma_dealloc_extended_object (ext_function_p, sizeof (ecma_extended_object_t) + args_size);
return;
}