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Remove INSTANTIATED_MASK_32_63 internal property type. (#1474)

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Furthermore the maximum number of properties is increased to 96.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2016-12-09 13:28:06 +01:00
committed by GitHub
parent 4f8b7726d7
commit 9d6ca800e1
5 changed files with 146 additions and 114 deletions
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jerry-core/ecma/builtin-objects/ecma-builtin-internal-routines-template.inc.h
+3
View File
@@ -54,6 +54,9 @@
#undef ROUTINE_ARG_LIST_0
#undef ROUTINE_ARG
/**
* List of built-in routine identifiers.
*/
enum
{
PASTE (ECMA_ROUTINE_START_, BUILTIN_UNDERSCORED_ID) = ECMA_BUILTIN_ID__COUNT - 1,
jerry-core/ecma/builtin-objects/ecma-builtins.c
+110 -87
View File
@@ -34,6 +34,46 @@
static void ecma_instantiate_builtin (ecma_builtin_id_t id);
/**
* Helper definition for ecma_builtin_property_list_references.
*/
typedef const ecma_builtin_property_descriptor_t *ecma_builtin_property_list_reference_t;
/**
* Property descriptor lists for all built-ins.
*/
static const ecma_builtin_property_list_reference_t ecma_builtin_property_list_references[] =
{
#define BUILTIN(builtin_id, \
object_type, \
object_prototype_builtin_id, \
is_extensible, \
is_static, \
lowercase_name) \
ecma_builtin_ ## lowercase_name ## _property_descriptor_list,
#include "ecma-builtins.inc.h"
};
/**
* Get the number of properties of a built-in object.
*
* @return the number of properties
*/
static size_t
ecma_builtin_get_property_count (ecma_builtin_id_t builtin_id)
{
const ecma_builtin_property_descriptor_t *property_list_p = ecma_builtin_property_list_references[builtin_id];
const ecma_builtin_property_descriptor_t *curr_property_p = property_list_p;
while (curr_property_p->magic_string_id != LIT_MAGIC_STRING__COUNT)
{
curr_property_p++;
}
return (size_t) (curr_property_p - property_list_p);
} /* ecma_builtin_get_property_count */
/**
* Check if passed object is the instance of specified built-in.
*/
@@ -109,6 +149,17 @@ ecma_builtin_init_object (ecma_builtin_id_t obj_builtin_id, /**< built-in ID */
size_t ext_object_size = (is_extended_built_in ? sizeof (ecma_extended_built_in_object_t)
: sizeof (ecma_extended_object_t));
size_t property_count = ecma_builtin_get_property_count (obj_builtin_id);
if (property_count > 32)
{
/* Only 64 extra properties supported at the moment.
* This can be extended to 256 later. */
JERRY_ASSERT (property_count <= (32 + 64));
ext_object_size += sizeof (uint32_t) * 2;
}
ecma_object_t *obj_p = ecma_create_object (prototype_obj_p, ext_object_size, obj_type);
if (!is_extensible)
@@ -136,7 +187,20 @@ ecma_builtin_init_object (ecma_builtin_id_t obj_builtin_id, /**< built-in ID */
built_in_props_p->id = obj_builtin_id;
built_in_props_p->routine_id = obj_builtin_id;
built_in_props_p->instantiated_bitset = 0;
built_in_props_p->instantiated_bitset[0] = 0;
if (property_count > 32)
{
built_in_props_p->length_and_bitset_size = 1 << ECMA_BUILT_IN_BITSET_SHIFT;
uint32_t *instantiated_bitset_p = built_in_props_p->instantiated_bitset;
instantiated_bitset_p[1] = 0;
instantiated_bitset_p[2] = 0;
}
else
{
built_in_props_p->length_and_bitset_size = 0;
}
/** Initializing [[PrimitiveValue]] properties of built-in prototype objects */
switch (obj_builtin_id)
@@ -309,10 +373,25 @@ ecma_builtin_make_function_object_for_routine (ecma_builtin_id_t builtin_id, /**
* object's routine property */
uint8_t length_prop_value) /**< value of 'length' property */
{
JERRY_ASSERT (length_prop_value < (1 << ECMA_BUILT_IN_BITSET_SHIFT));
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_FUNCTION_PROTOTYPE);
size_t ext_object_size = sizeof (ecma_extended_object_t);
size_t property_count = ecma_builtin_get_property_count (builtin_id);
if (property_count > 32)
{
/* Only 64 extra properties supported at the moment.
* This can be extended to 256 later. */
JERRY_ASSERT (property_count <= (32 + 64));
ext_object_size += sizeof (uint32_t) * 2;
}
ecma_object_t *func_obj_p = ecma_create_object (prototype_obj_p,
sizeof (ecma_extended_object_t),
ext_object_size,
ECMA_OBJECT_TYPE_FUNCTION);
ecma_deref_object (prototype_obj_p);
@@ -323,9 +402,19 @@ ecma_builtin_make_function_object_for_routine (ecma_builtin_id_t builtin_id, /**
ecma_extended_object_t *ext_func_obj_p = (ecma_extended_object_t *) func_obj_p;
ext_func_obj_p->u.built_in.id = builtin_id;
ext_func_obj_p->u.built_in.length = length_prop_value;
ext_func_obj_p->u.built_in.routine_id = routine_id;
ext_func_obj_p->u.built_in.instantiated_bitset = 0;
ext_func_obj_p->u.built_in.instantiated_bitset[0] = 0;
if (property_count > 32)
{
length_prop_value = (uint8_t) (length_prop_value | (1 << ECMA_BUILT_IN_BITSET_SHIFT));
uint32_t *instantiated_bitset_p = ext_func_obj_p->u.built_in.instantiated_bitset;
instantiated_bitset_p[1] = 0;
instantiated_bitset_p[2] = 0;
}
ext_func_obj_p->u.built_in.length_and_bitset_size = length_prop_value;
return func_obj_p;
} /* ecma_builtin_make_function_object_for_routine */
@@ -356,20 +445,6 @@ ecma_builtin_make_function_object_for_setter_accessor (ecma_builtin_id_t builtin
return ecma_builtin_make_function_object_for_routine (builtin_id, routine_id, 1);
} /* ecma_builtin_make_function_object_for_setter_accessor */
typedef const ecma_builtin_property_descriptor_t *ecma_builtin_property_list_reference_t;
static const ecma_builtin_property_list_reference_t ecma_builtin_property_list_references[] =
{
#define BUILTIN(builtin_id, \
object_type, \
object_prototype_builtin_id, \
is_extensible, \
is_static, \
lowercase_name) \
ecma_builtin_ ## lowercase_name ## _property_descriptor_list,
#include "ecma-builtins.inc.h"
};
/**
* If the property's name is one of built-in properties of the object
* that is not instantiated yet, instantiate the property and
@@ -404,7 +479,10 @@ ecma_builtin_try_to_instantiate_property (ecma_object_t *object_p, /**< object *
&len_prop_p);
ecma_extended_object_t *ext_obj_p = (ecma_extended_object_t *) object_p;
len_prop_value_p->value = ecma_make_integer_value (ext_obj_p->u.built_in.length);
uint8_t length = ext_obj_p->u.built_in.length_and_bitset_size & ((1 << ECMA_BUILT_IN_BITSET_SHIFT) - 1);
len_prop_value_p->value = ecma_make_integer_value (length);
return len_prop_p;
}
@@ -451,46 +529,17 @@ ecma_builtin_try_to_instantiate_property (ecma_object_t *object_p, /**< object *
uint32_t index = (uint32_t) (curr_property_p - property_list_p);
JERRY_ASSERT (index < 64);
uint32_t *bitset_p = built_in_props_p->instantiated_bitset + (index >> 5);
if (likely (index < 32))
uint32_t bit_for_index = (uint32_t) (1u << (index & 0x1f));
if (*bitset_p & bit_for_index)
{
uint32_t bit_for_index = (uint32_t) 1u << index;
if (built_in_props_p->instantiated_bitset & bit_for_index)
{
/* This property was instantiated before. */
return NULL;
}
built_in_props_p->instantiated_bitset |= bit_for_index;
/* This property was instantiated before. */
return NULL;
}
else
{
uint32_t bit_for_index = (uint32_t) 1u << (index - 32);
ecma_value_t *mask_prop_p = ecma_find_internal_property (object_p,
ECMA_INTERNAL_PROPERTY_INSTANTIATED_MASK_32_63);
uint32_t instantiated_bitset;
if (mask_prop_p == NULL)
{
mask_prop_p = ecma_create_internal_property (object_p, ECMA_INTERNAL_PROPERTY_INSTANTIATED_MASK_32_63);
instantiated_bitset = 0;
}
else
{
instantiated_bitset = *mask_prop_p;
if (instantiated_bitset & bit_for_index)
{
/* This property was instantiated before. */
return NULL;
}
}
*mask_prop_p = (instantiated_bitset | bit_for_index);
}
*bitset_p |= bit_for_index;
ecma_value_t value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
bool is_accessor = false;
@@ -695,50 +744,24 @@ ecma_builtin_list_lazy_property_names (ecma_object_t *object_p, /**< a built-in
const ecma_builtin_property_descriptor_t *curr_property_p = ecma_builtin_property_list_references[builtin_id];
ecma_length_t index = 0;
uint32_t instantiated_bitset = built_in_props_p->instantiated_bitset;
uint32_t *bitset_p = built_in_props_p->instantiated_bitset;
ecma_collection_header_t *for_non_enumerable_p = (separate_enumerable ? non_enum_collection_p
: main_collection_p);
while (curr_property_p->magic_string_id != LIT_MAGIC_STRING__COUNT)
{
JERRY_ASSERT (index < 64);
if (index == 32)
{
ecma_value_t *mask_prop_p = ecma_find_internal_property (object_p,
ECMA_INTERNAL_PROPERTY_INSTANTIATED_MASK_32_63);
if (mask_prop_p == NULL)
{
instantiated_bitset = 0;
}
else
{
instantiated_bitset = *mask_prop_p;
}
}
uint32_t bit_for_index;
if (index >= 32)
{
bit_for_index = (uint32_t) 1u << (index - 32);
}
else
{
bit_for_index = (uint32_t) 1u << index;
}
bool was_instantiated = false;
if (instantiated_bitset & bit_for_index)
{
was_instantiated = true;
bitset_p++;
index = 0;
}
ecma_string_t *name_p = ecma_get_magic_string (curr_property_p->magic_string_id);
if (!was_instantiated || ecma_op_object_has_own_property (object_p, name_p))
uint32_t bit_for_index = (uint32_t) 1u << index;
if (!(*bitset_p & bit_for_index) || ecma_op_object_has_own_property (object_p, name_p))
{
ecma_append_to_values_collection (for_non_enumerable_p,
ecma_make_string_value (name_p),