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Implement async generators (#3916)

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JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2020-06-22 13:54:18 +02:00
committed by GitHub
parent 0f0041d720
commit b2a6109430
32 changed files with 1247 additions and 50 deletions
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jerry-core/ecma/base/ecma-gc.c
+40
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@@ -404,6 +404,27 @@ ecma_gc_mark_executable_object (ecma_object_t *object_p) /**< object */
{
vm_executable_object_t *executable_object_p = (vm_executable_object_t *) object_p;
if (executable_object_p->extended_object.u.class_prop.extra_info & ECMA_ASYNC_GENERATOR_CALLED)
{
ecma_value_t task = executable_object_p->extended_object.u.class_prop.u.head;
while (!ECMA_IS_INTERNAL_VALUE_NULL (task))
{
ecma_async_generator_task_t *task_p;
task_p = ECMA_GET_INTERNAL_VALUE_POINTER (ecma_async_generator_task_t, task);
JERRY_ASSERT (ecma_is_value_object (task_p->promise));
ecma_gc_set_object_visited (ecma_get_object_from_value (task_p->promise));
if (ecma_is_value_object (task_p->operation_value))
{
ecma_gc_set_object_visited (ecma_get_object_from_value (task_p->operation_value));
}
task = task_p->next;
}
}
if (!ECMA_EXECUTABLE_OBJECT_IS_SUSPENDED (executable_object_p->extended_object.u.class_prop.extra_info))
{
/* All objects referenced by running executable objects are strong roots,
@@ -584,6 +605,7 @@ ecma_gc_mark (ecma_object_t *object_p) /**< object to mark from */
#endif /* ENABLED (JERRY_BUILTIN_CONTAINER) */
#if ENABLED (JERRY_ESNEXT)
case LIT_MAGIC_STRING_GENERATOR_UL:
case LIT_MAGIC_STRING_ASYNC_GENERATOR_UL:
{
ecma_gc_mark_executable_object (object_p);
break;
@@ -850,6 +872,23 @@ ecma_gc_free_executable_object (ecma_object_t *object_p) /**< object */
ecma_bytecode_deref ((ecma_compiled_code_t *) bytecode_header_p);
if (executable_object_p->extended_object.u.class_prop.extra_info & ECMA_ASYNC_GENERATOR_CALLED)
{
ecma_value_t task = executable_object_p->extended_object.u.class_prop.u.head;
while (!ECMA_IS_INTERNAL_VALUE_NULL (task))
{
ecma_async_generator_task_t *task_p;
task_p = ECMA_GET_INTERNAL_VALUE_POINTER (ecma_async_generator_task_t, task);
JERRY_ASSERT (ecma_is_value_object (task_p->promise));
ecma_free_value_if_not_object (task_p->operation_value);
task = task_p->next;
jmem_heap_free_block (task_p, sizeof (ecma_async_generator_task_t));
}
}
if (executable_object_p->extended_object.u.class_prop.extra_info & ECMA_EXECUTABLE_OBJECT_COMPLETED)
{
return size;
@@ -1167,6 +1206,7 @@ ecma_gc_free_object (ecma_object_t *object_p) /**< object to free */
#endif /* ENABLED (JERRY_BUILTIN_DATAVIEW) */
#if ENABLED (JERRY_ESNEXT)
case LIT_MAGIC_STRING_GENERATOR_UL:
case LIT_MAGIC_STRING_ASYNC_GENERATOR_UL:
{
ext_object_size = ecma_gc_free_executable_object (object_p);
break;