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Rework the core of class parsing/runtime semantic (#3598)

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Changes:
 - Use the pre-scanner to provide information for the parser about the existence of the class constructor
 - The allocation of the super declarative environment is no longer needed
 - The VM frame context holds the information about the this binding status
 - Reduce the number of class related VM/CBC instructions
 - Improve ecma_op_function_{construct, call} to properly set new.target

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
This commit is contained in:
Robert Fancsik
2020-03-16 14:37:47 +01:00
committed by GitHub
parent 56b9f098ab
commit bfd2639634
49 changed files with 1671 additions and 1490 deletions
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jerry-core/ecma/base/ecma-helpers.c
+2 -2
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@@ -141,7 +141,7 @@ ecma_create_object_lex_env (ecma_object_t *outer_lexical_environment_p, /**< out
{
#if ENABLED (JERRY_ES2015)
JERRY_ASSERT (type == ECMA_LEXICAL_ENVIRONMENT_THIS_OBJECT_BOUND
|| type == ECMA_LEXICAL_ENVIRONMENT_SUPER_OBJECT_BOUND);
|| type == ECMA_LEXICAL_ENVIRONMENT_HOME_OBJECT_BOUND);
#else /* !ENABLED (JERRY_ES2015) */
JERRY_ASSERT (type == ECMA_LEXICAL_ENVIRONMENT_THIS_OBJECT_BOUND);
#endif /* ENABLED (JERRY_ES2015) */
@@ -288,7 +288,7 @@ ecma_get_lex_env_binding_object (const ecma_object_t *object_p) /**< object-boun
JERRY_ASSERT (ecma_is_lexical_environment (object_p));
#if ENABLED (JERRY_ES2015)
JERRY_ASSERT (ecma_get_lex_env_type (object_p) == ECMA_LEXICAL_ENVIRONMENT_THIS_OBJECT_BOUND
|| ecma_get_lex_env_type (object_p) == ECMA_LEXICAL_ENVIRONMENT_SUPER_OBJECT_BOUND);
|| ecma_get_lex_env_type (object_p) == ECMA_LEXICAL_ENVIRONMENT_HOME_OBJECT_BOUND);
#else /* !ENABLED (JERRY_ES2015) */
JERRY_ASSERT (ecma_get_lex_env_type (object_p) == ECMA_LEXICAL_ENVIRONMENT_THIS_OBJECT_BOUND);
#endif /* ENABLED (JERRY_ES2015) */