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Implementing 'length' property of String instances.

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This commit is contained in:
Ruben Ayrapetyan
2014-10-15 19:02:41 +04:00
parent 5d874596ec
commit 9b178f5ab0
1 changed files with 20 additions and 0 deletions
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src/libecmaoperations/ecma-string-object.c
+20
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@@ -48,9 +48,12 @@ ecma_op_create_string_object (ecma_value_t *arguments_list_p, /**< list of argum
ecma_string_t* prim_prop_str_value_p;
ecma_number_t length_value;
if (arguments_list_len == 0)
{
prim_prop_str_value_p = ecma_new_ecma_string_from_magic_string_id (ECMA_MAGIC_STRING__EMPTY);
length_value = ECMA_NUMBER_ZERO;
}
else
{
@@ -66,6 +69,11 @@ ecma_op_create_string_object (ecma_value_t *arguments_list_p, /**< list of argum
JERRY_ASSERT (to_str_arg_value.u.value.value_type == ECMA_TYPE_STRING);
prim_prop_str_value_p = ECMA_GET_POINTER (to_str_arg_value.u.value.value);
int32_t string_len = ecma_string_get_length (prim_prop_str_value_p);
JERRY_ASSERT (string_len >= 0);
length_value = ecma_uint32_to_number ((uint32_t) string_len);
}
}
@@ -82,6 +90,18 @@ ecma_op_create_string_object (ecma_value_t *arguments_list_p, /**< list of argum
ECMA_INTERNAL_PROPERTY_PRIMITIVE_STRING_VALUE);
ECMA_SET_POINTER (prim_value_prop_p->u.internal_property.value, prim_prop_str_value_p);
// 15.5.5.1
ecma_string_t *length_magic_string_p = ecma_get_magic_string (ECMA_MAGIC_STRING_LENGTH);
ecma_property_t *length_prop_p = ecma_create_named_data_property (obj_p,
length_magic_string_p,
false,
false,
false);
ecma_number_t *length_prop_value_p = ecma_alloc_number ();
*length_prop_value_p = length_value;
length_prop_p->u.named_data_property.value = ecma_make_number_value (length_prop_value_p);
ecma_deref_ecma_string (length_magic_string_p);
return ecma_make_normal_completion_value (ecma_make_object_value (obj_p));
} /* ecma_op_create_string_object */