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On-demand built-ins instantiation.

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This commit is contained in:
Ruben Ayrapetyan 2014-10-28 17:52:07 +03:00
parent e35ec87209
commit 87310e43c6
1 changed files with 58 additions and 25 deletions
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83
src/libecmabuiltins/ecma-builtins.c
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@ -40,6 +40,7 @@ ecma_builtin_dispatch_routine (ecma_builtin_id_t builtin_object_id,
ecma_value_t this_arg_value,
ecma_value_t arguments_list [],
ecma_length_t arguments_number);
static void ecma_instantiate_builtin (ecma_builtin_id_t id);
/**
* Pointer to instances of built-in objects
@ -55,7 +56,11 @@ ecma_builtin_is (ecma_object_t *obj_p, /**< pointer to an object */
{
JERRY_ASSERT (obj_p != NULL && !ecma_is_lexical_environment (obj_p));
JERRY_ASSERT (builtin_id < ECMA_BUILTIN_ID__COUNT);
JERRY_ASSERT (ecma_builtin_objects [builtin_id] != NULL);
if (unlikely (ecma_builtin_objects [builtin_id] == NULL))
{
ecma_instantiate_builtin (builtin_id);
}
return (obj_p == ecma_builtin_objects [builtin_id]);
} /* ecma_builtin_is */
@ -69,7 +74,11 @@ ecma_object_t*
ecma_builtin_get (ecma_builtin_id_t builtin_id) /**< id of built-in to check on */
{
JERRY_ASSERT (builtin_id < ECMA_BUILTIN_ID__COUNT);
JERRY_ASSERT (ecma_builtin_objects [builtin_id] != NULL);
if (unlikely (ecma_builtin_objects [builtin_id] == NULL))
{
ecma_instantiate_builtin (builtin_id);
}
ecma_ref_object (ecma_builtin_objects [builtin_id]);
@ -145,7 +154,7 @@ ecma_builtin_init_object (ecma_builtin_id_t obj_builtin_id, /**< built-in ID */
} /* ecma_builtin_init_object */
/**
* Initialize ECMA built-in objects
* Initialize ECMA built-ins components
*/
void
ecma_init_builtins (void)
@ -156,35 +165,59 @@ ecma_init_builtins (void)
{
ecma_builtin_objects [id] = NULL;
}
} /* ecma_init_builtins */
#define INIT_BUILTIN(builtin_id, \
/**
* Instantiate specified ECMA built-in object
*/
static void
ecma_instantiate_builtin (ecma_builtin_id_t id) /**< built-in id */
{
switch (id)
{
#define CASE_BUILTIN(builtin_id, \
object_type, \
object_class, \
object_prototype_builtin_id, \
lowercase_name) \
{ \
ecma_object_t *prototype_obj_p; \
if (object_prototype_builtin_id == ECMA_BUILTIN_ID__COUNT) \
case ECMA_BUILTIN_ID_ ## builtin_id: \
{ \
prototype_obj_p = NULL; \
} \
else \
{ \
prototype_obj_p = ecma_builtin_objects [object_prototype_builtin_id]; \
JERRY_ASSERT (prototype_obj_p != NULL); \
} \
\
ecma_object_t *builtin_obj_p = ecma_builtin_init_object (ECMA_BUILTIN_ID_ ## builtin_id, \
prototype_obj_p, \
ECMA_OBJECT_ ## object_type, \
ECMA_MAGIC_STRING_ ## object_class); \
ecma_builtin_objects [ECMA_BUILTIN_ID_ ## builtin_id] = builtin_obj_p; \
JERRY_ASSERT (ecma_builtin_objects [ECMA_BUILTIN_ID_ ## builtin_id] == NULL); \
\
ecma_object_t *prototype_obj_p; \
if (object_prototype_builtin_id == ECMA_BUILTIN_ID__COUNT) \
{ \
prototype_obj_p = NULL; \
} \
else \
{ \
if (ecma_builtin_objects [object_prototype_builtin_id] == NULL) \
{ \
ecma_instantiate_builtin (object_prototype_builtin_id); \
} \
prototype_obj_p = ecma_builtin_objects [object_prototype_builtin_id]; \
JERRY_ASSERT (prototype_obj_p != NULL); \
} \
\
ecma_object_t *builtin_obj_p = ecma_builtin_init_object (ECMA_BUILTIN_ID_ ## builtin_id, \
prototype_obj_p, \
ECMA_OBJECT_ ## object_type, \
ECMA_MAGIC_STRING_ ## object_class); \
ecma_builtin_objects [ECMA_BUILTIN_ID_ ## builtin_id] = builtin_obj_p; \
\
break; \
}
ECMA_BUILTIN_LIST (CASE_BUILTIN);
#undef CASE_BUILTIN
default:
{
JERRY_UNREACHABLE ();
}
}
ECMA_BUILTIN_LIST (INIT_BUILTIN);
#undef INIT_BUILTIN
} /* ecma_init_builtins */
} /* ecma_instantiate_builtin */
/**
* Finalize ECMA built-in objects