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Free three parser status flag bits. (#3451)

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The operations covered by these bits can be done in a different way.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2019-12-17 11:43:37 +01:00
committed by Dániel Bátyai
parent 0428b51e35
commit d0b4e7dd04
6 changed files with 55 additions and 57 deletions
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jerry-core/parser/js/js-parser-statm.c
+11 -22
View File
@@ -306,7 +306,7 @@ parser_statement_length (uint8_t type) /**< type of statement */
(uint8_t) (sizeof (parser_for_in_of_statement_t) + sizeof (parser_loop_statement_t) + 1),
#endif /* ENABLED (JERRY_ES2015) */
/* PARSER_STATEMENT_WITH */
(uint8_t) (sizeof (parser_with_statement_t) + 1),
(uint8_t) (sizeof (parser_with_statement_t) + 1 + 1),
/* PARSER_STATEMENT_TRY */
(uint8_t) (sizeof (parser_try_statement_t) + 1),
};
@@ -810,12 +810,15 @@ parser_parse_with_statement_start (parser_context_t *context_p) /**< context */
PARSER_PLUS_EQUAL_U16 (context_p->context_stack_depth, PARSER_WITH_CONTEXT_STACK_ALLOCATION);
#endif /* !JERRY_NDEBUG */
uint8_t inside_with = (context_p->status_flags & PARSER_INSIDE_WITH) != 0;
context_p->status_flags |= PARSER_INSIDE_WITH | PARSER_LEXICAL_ENV_NEEDED;
parser_emit_cbc_ext_forward_branch (context_p,
CBC_EXT_WITH_CREATE_CONTEXT,
&with_statement.branch);
parser_stack_push (context_p, &with_statement, sizeof (parser_with_statement_t));
parser_stack_push_uint8 (context_p, inside_with);
parser_stack_push_uint8 (context_p, PARSER_STATEMENT_WITH);
parser_stack_iterator_init (context_p, &context_p->last_statement);
} /* parser_parse_with_statement_start */
@@ -827,10 +830,16 @@ static void
parser_parse_with_statement_end (parser_context_t *context_p) /**< context */
{
parser_with_statement_t with_statement;
parser_stack_iterator_t iterator;
JERRY_ASSERT (context_p->status_flags & PARSER_INSIDE_WITH);
parser_stack_pop_uint8 (context_p);
if (!context_p->stack_top_uint8)
{
context_p->status_flags &= (uint32_t) ~PARSER_INSIDE_WITH;
}
parser_stack_pop_uint8 (context_p);
parser_stack_pop (context_p, &with_statement, sizeof (parser_with_statement_t));
parser_stack_iterator_init (context_p, &context_p->last_statement);
@@ -843,26 +852,6 @@ parser_parse_with_statement_end (parser_context_t *context_p) /**< context */
parser_emit_cbc (context_p, CBC_CONTEXT_END);
parser_set_branch_to_current_position (context_p, &with_statement.branch);
parser_stack_iterator_init (context_p, &iterator);
while (true)
{
uint8_t type = parser_stack_iterator_read_uint8 (&iterator);
if (type == PARSER_STATEMENT_START)
{
context_p->status_flags &= (uint32_t) ~PARSER_INSIDE_WITH;
return;
}
if (type == PARSER_STATEMENT_WITH)
{
return;
}
parser_stack_iterator_skip (&iterator, parser_statement_length (type));
}
} /* parser_parse_with_statement_end */
#if ENABLED (JERRY_ES2015)