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Implement Array.of method (#3418)

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The algorithm is based on ECMA-262 v6, 22.1.2.3

JerryScript-DCO-1.0-Signed-off-by: Adam Szilagyi aszilagy@inf.u-szeged.hu
This commit is contained in:
Szilagyi Adam
2019-12-10 14:30:59 +01:00
committed by Dániel Bátyai
parent b8bc013fc0
commit 6cc9848afc
4 changed files with 146 additions and 2 deletions
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jerry-core/ecma/builtin-objects/ecma-builtin-array.c
+69
View File
@@ -391,6 +391,75 @@ cleanup:
ecma_deref_object (array_like_obj_p);
return ret_value;
} /* ecma_builtin_array_object_from */
/**
* The Array object's 'of' routine
*
* See also:
* ECMA-262 v6, 22.1.2.3
*
* @return ecma value
* Returned value must be freed with ecma_free_value.
*/
static ecma_value_t
ecma_builtin_array_object_of (ecma_value_t this_arg, /**< 'this' argument */
const ecma_value_t *arguments_list_p, /**< arguments list */
ecma_length_t arguments_list_len) /**< number of arguments */
{
if (!ecma_is_constructor (this_arg))
{
return ecma_op_create_array_object (arguments_list_p, arguments_list_len, false);
}
ecma_value_t len = ecma_make_uint32_value (arguments_list_len);
ecma_value_t ret_val = ecma_op_function_construct (ecma_get_object_from_value (this_arg),
ECMA_VALUE_UNDEFINED,
&len,
1);
if (ECMA_IS_VALUE_ERROR (ret_val))
{
ecma_free_value (len);
return ret_val;
}
uint32_t k = 0;
ecma_object_t *obj_p = ecma_get_object_from_value (ret_val);
const uint32_t prop_status_flags = ECMA_PROPERTY_CONFIGURABLE_ENUMERABLE_WRITABLE | ECMA_IS_THROW;
while (k < arguments_list_len)
{
ecma_value_t define_status = ecma_builtin_helper_def_prop_by_index (obj_p,
k,
arguments_list_p[k],
prop_status_flags);
if (ECMA_IS_VALUE_ERROR (define_status))
{
ecma_free_value (len);
ecma_deref_object (obj_p);
return define_status;
}
k++;
}
ret_val = ecma_op_object_put (obj_p,
ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH),
len,
true);
ecma_free_value (len);
if (ECMA_IS_VALUE_ERROR (ret_val))
{
ecma_deref_object (obj_p);
return ret_val;
}
return ecma_make_object_value (obj_p);
} /* ecma_builtin_array_object_of */
#endif /* ENABLED (JERRY_ES2015) */
/**
jerry-core/ecma/builtin-objects/ecma-builtin-array.inc.h
+1
View File
@@ -42,6 +42,7 @@ NUMBER_VALUE (LIT_MAGIC_STRING_LENGTH,
ROUTINE (LIT_MAGIC_STRING_IS_ARRAY_UL, ecma_builtin_array_object_is_array, 1, 1)
#if ENABLED (JERRY_ES2015)
ROUTINE (LIT_MAGIC_STRING_FROM, ecma_builtin_array_object_from, NON_FIXED, 1)
ROUTINE (LIT_MAGIC_STRING_OF, ecma_builtin_array_object_of, NON_FIXED, 0)
#endif /* ENABLED (JERRY_ES2015) */
#endif /* !(ENABLED (JERRY_BUILTIN_ARRAY)) */
jerry-core/lit/lit-magic-strings.inc.h
+4 -2
View File
@@ -38,7 +38,8 @@ LIT_MAGIC_STRING_DEF (LIT_MAGIC_STRING_PI_U, "PI")
#if ENABLED (JERRY_ES2015)
LIT_MAGIC_STRING_DEF (LIT_MAGIC_STRING_IS, "is")
#endif
#if ENABLED (JERRY_ES2015_BUILTIN_TYPEDARRAY)
#if ENABLED (JERRY_BUILTIN_ARRAY) && ENABLED (JERRY_ES2015) \
|| ENABLED (JERRY_ES2015_BUILTIN_TYPEDARRAY)
LIT_MAGIC_STRING_DEF (LIT_MAGIC_STRING_OF, "of")
#endif
#if ENABLED (JERRY_BUILTIN_MATH)
@@ -813,7 +814,8 @@ LIT_MAGIC_STRING_FIRST_STRING_WITH_SIZE (1, LIT_MAGIC_STRING_SPACE_CHAR)
LIT_MAGIC_STRING_FIRST_STRING_WITH_SIZE (2, LIT_MAGIC_STRING_PI_U)
#elif ENABLED (JERRY_ES2015)
LIT_MAGIC_STRING_FIRST_STRING_WITH_SIZE (2, LIT_MAGIC_STRING_IS)
#elif ENABLED (JERRY_ES2015_BUILTIN_TYPEDARRAY)
#elif ENABLED (JERRY_BUILTIN_ARRAY) && ENABLED (JERRY_ES2015) \
|| ENABLED (JERRY_ES2015_BUILTIN_TYPEDARRAY)
LIT_MAGIC_STRING_FIRST_STRING_WITH_SIZE (2, LIT_MAGIC_STRING_OF)
#elif ENABLED (JERRY_BUILTIN_MATH)
LIT_MAGIC_STRING_FIRST_STRING_WITH_SIZE (2, LIT_MAGIC_STRING_LN2_U)