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Improve destructuring patterns (#4527)

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- Fix evaluation order of the operands
- Implement proper iterator closing of array destructuring
- Support next method caching

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
This commit is contained in:
Robert Fancsik
2021-02-04 13:11:11 +01:00
committed by GitHub
parent 3bb67397a0
commit e7d11eaf9e
12 changed files with 389 additions and 354 deletions
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jerry-core/ecma/base/ecma-gc.c
+30
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@@ -562,6 +562,21 @@ ecma_gc_mark_executable_object (ecma_object_t *object_p) /**< object */
do
{
if (VM_CONTEXT_IS_VARIABLE_LENGTH (VM_GET_CONTEXT_TYPE (context_top_p[-1])))
{
ecma_value_t *last_item_p = context_top_p - VM_GET_CONTEXT_END (context_top_p[-1]);
JERRY_ASSERT (last_item_p >= context_end_p);
context_top_p--;
do
{
ecma_gc_set_object_visited (ecma_get_object_from_value (*(--context_top_p)));
}
while (context_top_p > last_item_p);
continue;
}
uint32_t offsets = vm_get_context_value_offsets (context_top_p);
while (VM_CONTEXT_HAS_NEXT_OFFSET (offsets))
@@ -1245,6 +1260,21 @@ ecma_gc_free_executable_object (ecma_object_t *object_p) /**< object */
{
context_top_p[-1] &= (uint32_t) ~VM_CONTEXT_HAS_LEX_ENV;
if (VM_CONTEXT_IS_VARIABLE_LENGTH (VM_GET_CONTEXT_TYPE (context_top_p[-1])))
{
ecma_value_t *last_item_p = context_top_p - VM_GET_CONTEXT_END (context_top_p[-1]);
JERRY_ASSERT (last_item_p >= context_end_p);
context_top_p--;
do
{
ecma_free_value_if_not_object (*(--context_top_p));
}
while (context_top_p > last_item_p);
continue;
}
uint32_t offsets = vm_get_context_value_offsets (context_top_p);
while (VM_CONTEXT_HAS_NEXT_OFFSET (offsets))