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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.h
+10 -2
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@@ -192,13 +192,20 @@ typedef enum
#define ECMA_ASSERT_VALUE_IS_SYMBOL(value) (false)
#endif /* ENABLED (JERRY_ES2015) */
/**
* Check whether the given type is ECMA_OBJECT_TYPE_PROXY
*
* @param type object type
*/
#define ECMA_OBJECT_TYPE_IS_PROXY(type) (JERRY_UNLIKELY ((type) == ECMA_OBJECT_TYPE_PROXY))
/**
* Check whether the given object has [[ProxyHandler]] and [[ProxyTarger]] internal slots
*
* @param obj_p ecma-object
*/
#if ENABLED (JERRY_ES2015_BUILTIN_PROXY)
#define ECMA_OBJECT_IS_PROXY(obj_p) (JERRY_UNLIKELY (ecma_get_object_type ((obj_p)) == ECMA_OBJECT_TYPE_PROXY))
#define ECMA_OBJECT_IS_PROXY(obj_p) (ECMA_OBJECT_TYPE_IS_PROXY (ecma_get_object_type ((obj_p))))
#else /* !ENABLED (JERRY_ES2015_BUILTIN_PROXY) */
#define ECMA_OBJECT_IS_PROXY(obj_p) (false)
#endif /* ENABLED (JERRY_ES2015_BUILTIN_PROXY) */
@@ -402,6 +409,8 @@ lit_utf8_size_t ecma_number_to_binary_floating_point_number (ecma_number_t num,
/* ecma-helpers-collection.c */
ecma_collection_t *ecma_new_collection (void);
void ecma_collection_push_back (ecma_collection_t *collection_p, ecma_value_t value);
void ecma_collection_reserve (ecma_collection_t *collection_p, uint32_t count);
void ecma_collection_append (ecma_collection_t *collection_p, const ecma_value_t *buffer_p, uint32_t count);
void ecma_collection_destroy (ecma_collection_t *collection_p);
void ecma_collection_free (ecma_collection_t *collection_p);
void ecma_collection_free_if_not_object (ecma_collection_t *collection_p);
@@ -419,7 +428,6 @@ bool JERRY_ATTR_PURE ecma_get_object_is_builtin (const ecma_object_t *object_p);
void ecma_set_object_is_builtin (ecma_object_t *object_p);
uint8_t ecma_get_object_builtin_id (ecma_object_t *object_p);
ecma_lexical_environment_type_t JERRY_ATTR_PURE ecma_get_lex_env_type (const ecma_object_t *object_p);
ecma_object_t JERRY_ATTR_PURE *ecma_get_lex_env_outer_reference (const ecma_object_t *object_p);
ecma_object_t JERRY_ATTR_PURE *ecma_get_lex_env_binding_object (const ecma_object_t *object_p);
ecma_object_t *ecma_clone_decl_lexical_environment (ecma_object_t *lex_env_p, bool copy_values);