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Implement the Symbol builtin object (#2601)

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This patch contains the base functionalities that the new builtin object requires.

Currently unavailable:
 - print (Symbol('foo')) - this features requires the refactor of the print handler function
 - Several global symbol based builtin routines (follow up patch)

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
This commit is contained in:
Robert Fancsik
2019-01-16 10:09:23 +01:00
committed by Robert Sipka
parent 08c7183ef8
commit 7e3d688e5b
43 changed files with 1896 additions and 212 deletions
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jerry-core/ecma/builtin-objects/ecma-builtins.c
+29
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@@ -653,6 +653,16 @@ ecma_builtin_try_to_instantiate_property (ecma_object_t *object_p, /**< object *
lit_magic_string_id_t magic_string_id = ecma_get_string_magic (string_p);
#ifndef CONFIG_DISABLE_ES2015_SYMBOL_BUILTIN
if (JERRY_UNLIKELY (ecma_prop_name_is_symbol (string_p)))
{
if (string_p->hash & ECMA_GLOBAL_SYMBOL_FLAG)
{
magic_string_id = (string_p->hash >> ECMA_GLOBAL_SYMBOL_SHIFT);
}
}
#endif /* !CONFIG_DISABLE_ES2015_SYMBOL_BUILTIN */
if (magic_string_id == LIT_MAGIC_STRING__COUNT)
{
return NULL;
@@ -772,6 +782,25 @@ ecma_builtin_try_to_instantiate_property (ecma_object_t *object_p, /**< object *
value = ecma_make_magic_string_value ((lit_magic_string_id_t) curr_property_p->value);
break;
}
#ifndef CONFIG_DISABLE_ES2015_SYMBOL_BUILTIN
case ECMA_BUILTIN_PROPERTY_SYMBOL:
{
lit_magic_string_id_t symbol_desc_id = (lit_magic_string_id_t) curr_property_p->magic_string_id;
ecma_string_t *symbol_desc_p;
symbol_desc_p = ecma_append_magic_string_to_string (ecma_get_magic_string (LIT_MAGIC_STRING_SYMBOL_DOT_UL),
symbol_desc_id);
ecma_value_t symbol_desc_value = ecma_make_string_value (symbol_desc_p);
ecma_string_t *symbol_p = ecma_new_symbol_from_descriptor_string (symbol_desc_value);
lit_magic_string_id_t symbol_id = (lit_magic_string_id_t) curr_property_p->value;
symbol_p->hash = (uint16_t) ((symbol_id << ECMA_GLOBAL_SYMBOL_SHIFT) | ECMA_GLOBAL_SYMBOL_FLAG);
value = ecma_make_symbol_value (symbol_p);
break;
}
#endif /* !CONFIG_DISABLE_ES2015_SYMBOL_BUILTIN */
case ECMA_BUILTIN_PROPERTY_OBJECT:
{
ecma_object_t *builtin_object_p = ecma_builtin_get ((ecma_builtin_id_t) curr_property_p->value);