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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-parser.c
+31
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@@ -679,6 +679,11 @@ parse_print_final_cbc (ecma_compiled_code_t *compiled_code_p, /**< compiled code
{
JERRY_DEBUG_MSG (",constructor");
}
if (compiled_code_p->status_flags & CBC_CODE_FLAGS_GENERATOR)
{
JERRY_DEBUG_MSG (",generator");
}
#endif /* ENABLED (JERRY_ES2015) */
JERRY_DEBUG_MSG ("]\n");
@@ -1276,6 +1281,11 @@ parser_post_processing (parser_context_t *context_p) /**< context */
compiled_code_p->status_flags |= CBC_CODE_FLAGS_CONSTRUCTOR;
}
if (context_p->status_flags & PARSER_IS_GENERATOR_FUNCTION)
{
compiled_code_p->status_flags |= CBC_CODE_FLAGS_GENERATOR;
}
if (context_p->status_flags & PARSER_FUNCTION_HAS_REST_PARAM)
{
compiled_code_p->status_flags |= CBC_CODE_FLAGS_REST_PARAMETER;
@@ -1622,6 +1632,16 @@ parser_parse_function_arguments (parser_context_t *context_p, /**< context */
if (context_p->token.type == end_type)
{
#if ENABLED (JERRY_ES2015)
if (context_p->status_flags & PARSER_IS_GENERATOR_FUNCTION)
{
parser_emit_cbc_ext (context_p, CBC_EXT_CREATE_GENERATOR);
parser_emit_cbc_ext (context_p, CBC_EXT_CONTINUE_EXEC);
parser_emit_cbc (context_p, CBC_POP);
}
context_p->status_flags &= (uint32_t) ~PARSER_DISALLOW_YIELD;
#endif /* ENABLED (JERRY_ES2015) */
scanner_create_variables (context_p, SCANNER_CREATE_VARS_NO_OPTS);
return;
}
@@ -1786,6 +1806,17 @@ parser_parse_function_arguments (parser_context_t *context_p, /**< context */
parser_raise_error (context_p, error);
}
#if ENABLED (JERRY_ES2015)
if (context_p->status_flags & PARSER_IS_GENERATOR_FUNCTION)
{
parser_emit_cbc_ext (context_p, CBC_EXT_CREATE_GENERATOR);
parser_emit_cbc_ext (context_p, CBC_EXT_CONTINUE_EXEC);
parser_emit_cbc (context_p, CBC_POP);
}
context_p->status_flags &= (uint32_t) ~PARSER_DISALLOW_YIELD;
#endif /* ENABLED (JERRY_ES2015) */
scanner_revert_active (context_p);
scanner_create_variables (context_p, SCANNER_CREATE_VARS_IS_FUNCTION_BODY);
} /* parser_parse_function_arguments */