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Generational mark and sweep GC.

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This commit is contained in:
Ruben Ayrapetyan
2014-08-07 14:54:32 +04:00
parent ba6713e295
commit e3cd8ee942
15 changed files with 475 additions and 180 deletions
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src/libecmaobjects/ecma-helpers.c
+9 -39
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@@ -83,12 +83,10 @@ ecma_create_object( ecma_object_t *prototype_object_p, /**< pointer to prototybe
ecma_object_type_t type) /**< object type */
{
ecma_object_t *object_p = ecma_alloc_object();
ecma_init_gc_info( object_p);
object_p->properties_p = ECMA_NULL_POINTER;
object_p->is_lexical_environment = false;
object_p->GCInfo.is_object_valid = true;
object_p->GCInfo.u.refs = 1;
object_p->u.object.extensible = is_extensible;
ecma_set_pointer( object_p->u.object.prototype_object_p, prototype_object_p);
@@ -111,20 +109,13 @@ ecma_object_t*
ecma_create_decl_lex_env(ecma_object_t *outer_lexical_environment_p) /**< outer lexical environment */
{
ecma_object_t *new_lexical_environment_p = ecma_alloc_object();
ecma_init_gc_info( new_lexical_environment_p);
new_lexical_environment_p->is_lexical_environment = true;
new_lexical_environment_p->u.lexical_environment.type = ECMA_LEXICAL_ENVIRONMENT_DECLARATIVE;
new_lexical_environment_p->properties_p = ECMA_NULL_POINTER;
new_lexical_environment_p->GCInfo.is_object_valid = true;
new_lexical_environment_p->GCInfo.u.refs = 1;
if ( outer_lexical_environment_p != NULL )
{
ecma_ref_object( outer_lexical_environment_p);
}
ecma_set_pointer( new_lexical_environment_p->u.lexical_environment.outer_reference_p, outer_lexical_environment_p);
return new_lexical_environment_p;
@@ -148,29 +139,23 @@ ecma_create_object_lex_env(ecma_object_t *outer_lexical_environment_p, /**< oute
JERRY_ASSERT( binding_obj_p != NULL );
ecma_object_t *new_lexical_environment_p = ecma_alloc_object();
ecma_init_gc_info( new_lexical_environment_p);
new_lexical_environment_p->is_lexical_environment = true;
new_lexical_environment_p->u.lexical_environment.type = ECMA_LEXICAL_ENVIRONMENT_OBJECTBOUND;
new_lexical_environment_p->properties_p = ECMA_NULL_POINTER;
new_lexical_environment_p->GCInfo.is_object_valid = true;
new_lexical_environment_p->GCInfo.u.refs = 1;
if ( outer_lexical_environment_p != NULL )
{
ecma_ref_object( outer_lexical_environment_p);
}
ecma_set_pointer( new_lexical_environment_p->u.lexical_environment.outer_reference_p, outer_lexical_environment_p);
ecma_property_t *provide_this_prop_p = ecma_create_internal_property( new_lexical_environment_p, ECMA_INTERNAL_PROPERTY_PROVIDE_THIS);
provide_this_prop_p->u.internal_property.value = provide_this;
ecma_property_t *binding_object_prop_p = ecma_create_internal_property( new_lexical_environment_p, ECMA_INTERNAL_PROPERTY_BINDING_OBJECT);
ecma_ref_object( binding_obj_p);
ecma_set_pointer( binding_object_prop_p->u.internal_property.value, binding_obj_p);
ecma_gc_update_may_ref_younger_object_flag_by_object( new_lexical_environment_p, binding_obj_p);
return new_lexical_environment_p;
} /* ecma_create_object_lex_env */
@@ -302,7 +287,10 @@ ecma_create_named_accessor_property(ecma_object_t *obj_p, /**< object */
ecma_set_pointer( prop_p->u.named_accessor_property.name_p, ecma_new_ecma_string( name_p));
ecma_set_pointer( prop_p->u.named_accessor_property.get_p, get_p);
ecma_gc_update_may_ref_younger_object_flag_by_object( obj_p, get_p);
ecma_set_pointer( prop_p->u.named_accessor_property.set_p, set_p);
ecma_gc_update_may_ref_younger_object_flag_by_object( obj_p, set_p);
prop_p->u.named_accessor_property.enumerable = enumerable;
prop_p->u.named_accessor_property.configurable = configurable;
@@ -409,7 +397,7 @@ ecma_free_named_data_property( ecma_property_t *property_p) /**< the property */
JERRY_ASSERT( property_p->type == ECMA_PROPERTY_NAMEDDATA );
ecma_free_array( ecma_get_pointer( property_p->u.named_data_property.name_p));
ecma_free_value( property_p->u.named_data_property.value);
ecma_free_value( property_p->u.named_data_property.value, false);
ecma_dealloc_property( property_p);
} /* ecma_free_named_data_property */
@@ -424,19 +412,6 @@ ecma_free_named_accessor_property( ecma_property_t *property_p) /**< the propert
ecma_free_array( ecma_get_pointer( property_p->u.named_accessor_property.name_p));
ecma_object_t *get_p = ecma_get_pointer(property_p->u.named_accessor_property.get_p);
ecma_object_t *set_p = ecma_get_pointer(property_p->u.named_accessor_property.set_p);
if ( get_p != NULL )
{
ecma_deref_object( get_p);
}
if ( set_p != NULL )
{
ecma_deref_object( set_p);
}
ecma_dealloc_property( property_p);
} /* ecma_free_named_accessor_property */
@@ -463,11 +438,6 @@ ecma_free_internal_property( ecma_property_t *property_p) /**< the property */
case ECMA_INTERNAL_PROPERTY_SCOPE: /* a lexical environment */
case ECMA_INTERNAL_PROPERTY_BINDING_OBJECT: /* an object */
{
ecma_deref_object( ecma_get_pointer( property_value));
break;
}
case ECMA_INTERNAL_PROPERTY_PROTOTYPE: /* the property's value is located in ecma_object_t */
case ECMA_INTERNAL_PROPERTY_EXTENSIBLE: /* the property's value is located in ecma_object_t */
case ECMA_INTERNAL_PROPERTY_PROVIDE_THIS: /* a boolean */