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Implement the core of the generator functions. (#3368)

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Some things are missing:
 - yield* support
 - generator definition in object literal
 - the hidden GeneratorFunction

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2019-11-28 11:54:27 +01:00
committed by Dániel Bátyai
parent 14e95a4775
commit 110f75c99d
35 changed files with 1535 additions and 85 deletions
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jerry-core/parser/js/js-scanner-util.c
+21 -4
View File
@@ -402,10 +402,13 @@ scanner_push_literal_pool (parser_context_t *context_p, /**< context */
JERRY_ASSERT (prev_literal_pool_p != NULL);
status_flags |= SCANNER_LITERAL_POOL_NO_ARGUMENTS;
if (prev_literal_pool_p->status_flags & SCANNER_LITERAL_POOL_IN_WITH)
{
status_flags |= SCANNER_LITERAL_POOL_IN_WITH;
}
#if ENABLED (JERRY_ES2015)
const uint16_t copied_flags = SCANNER_LITERAL_POOL_IN_WITH | SCANNER_LITERAL_POOL_GENERATOR;
#else /* !ENABLED (JERRY_ES2015) */
const uint16_t copied_flags = SCANNER_LITERAL_POOL_IN_WITH;
#endif /* ENABLED (JERRY_ES2015) */
status_flags |= (uint16_t) (prev_literal_pool_p->status_flags & copied_flags);
}
parser_list_init (&literal_pool_p->literal_pool,
@@ -775,6 +778,20 @@ scanner_pop_literal_pool (parser_context_t *context_p, /**< context */
prev_literal_pool_p->no_declarations = (uint16_t) no_declarations;
}
#if ENABLED (JERRY_ES2015)
if (is_function && prev_literal_pool_p != NULL)
{
if (prev_literal_pool_p->status_flags & SCANNER_LITERAL_POOL_GENERATOR)
{
context_p->status_flags |= PARSER_IS_GENERATOR_FUNCTION;
}
else
{
context_p->status_flags &= (uint32_t) ~PARSER_IS_GENERATOR_FUNCTION;
}
}
#endif /* ENABLED (JERRY_ES2015) */
scanner_context_p->active_literal_pool_p = literal_pool_p->prev_p;
parser_list_free (&literal_pool_p->literal_pool);