/**
* [[GetProperty]] ecma general object's operation
*
* See also:
* ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8
* ECMA-262 v5, 8.12.2
*
* @return pointer to a property - if it exists,
* NULL (i.e. ecma-undefined) - otherwise.
*/
ecma_property_t*
ecma_op_general_object_get_property (ecma_object_t *obj_p, /**< the object */
ecma_string_t *property_name_p) /**< property name */
{
JERRY_ASSERT (obj_p != NULL
&& !ecma_is_lexical_environment (obj_p));
JERRY_ASSERT (property_name_p != NULL);
// 1.
ecma_property_t *prop_p = ecma_op_object_get_own_property (obj_p, property_name_p);
// 2.
if (prop_p != NULL)
{
return prop_p;
}
// 3.
ecma_object_t *prototype_p = ecma_get_object_prototype (obj_p);
// 4., 5.
if (prototype_p != NULL)
{
return ecma_op_object_get_property (prototype_p, property_name_p);
}
else
{
return NULL;
}
} /* ecma_op_general_object_get_property */
/**
* 'in' opcode handler.
*
* See also: ECMA-262 v5, 11.8.7
*
* @return ecma value
* returned value must be freed with ecma_free_value.
*/
ecma_value_t
opfunc_in (ecma_value_t left_value, /**< left value */
ecma_value_t right_value) /**< right value */
{
ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
if (!ecma_is_value_object (right_value))
{
ret_value = ecma_raise_type_error (ECMA_ERR_MSG (""));
}
else
{
ECMA_TRY_CATCH (str_left_value, ecma_op_to_string (left_value), ret_value);
ecma_string_t *left_value_prop_name_p = ecma_get_string_from_value (str_left_value);
ecma_object_t *right_value_obj_p = ecma_get_object_from_value (right_value);
if (ecma_op_object_get_property (right_value_obj_p, left_value_prop_name_p) != NULL)
{
ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_TRUE);
}
else
{
ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_FALSE);
}
ECMA_FINALIZE (str_left_value);
}
return ret_value;
} /* opfunc_in */
/**
* Resolve value corresponding to reference.
*
* @return value of the reference
*/
ecma_value_t
ecma_op_resolve_reference_value (ecma_object_t *lex_env_p, /**< starting lexical environment */
ecma_string_t *name_p, /**< identifier's name */
bool is_strict) /**< strict mode */
{
JERRY_ASSERT (lex_env_p != NULL);
while (lex_env_p != NULL)
{
if (ecma_get_lex_env_type (lex_env_p) == ECMA_LEXICAL_ENVIRONMENT_DECLARATIVE)
{
ecma_property_t *property_p = ecma_find_named_property (lex_env_p, name_p);
if (property_p != NULL)
{
ecma_value_t prop_value = ecma_get_named_data_property_value (property_p);
/* is the binding mutable? */
if (unlikely (!ecma_is_property_writable (property_p)
&& ecma_is_value_empty (prop_value)))
{
/* unitialized mutable binding */
if (is_strict)
{
return ecma_raise_reference_error (ECMA_ERR_MSG (""));
}
else
{
return ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED);
}
}
return ecma_fast_copy_value (prop_value);
}
}
else
{
JERRY_ASSERT (ecma_get_lex_env_type (lex_env_p) == ECMA_LEXICAL_ENVIRONMENT_OBJECT_BOUND
|| ecma_get_lex_env_type (lex_env_p) == ECMA_LEXICAL_ENVIRONMENT_THIS_OBJECT_BOUND);
ecma_object_t *binding_obj_p = ecma_get_lex_env_binding_object (lex_env_p);
ecma_property_t *property_p = ecma_op_object_get_property (binding_obj_p, name_p);
if (property_p != NULL)
{
return ecma_op_object_get (binding_obj_p, name_p);
}
}
lex_env_p = ecma_get_lex_env_outer_reference (lex_env_p);
}
return ecma_raise_reference_error (ECMA_ERR_MSG (""));
} /* ecma_op_resolve_reference_value */
/**
* GetBindingValue operation.
*
* See also: ECMA-262 v5, 10.2.1
*
* @return ecma value
* Returned value must be freed with ecma_free_value.
*/
ecma_value_t
ecma_op_get_binding_value (ecma_object_t *lex_env_p, /**< lexical environment */
ecma_string_t *name_p, /**< argument N */
bool is_strict) /**< argument S */
{
JERRY_ASSERT (lex_env_p != NULL
&& ecma_is_lexical_environment (lex_env_p));
JERRY_ASSERT (name_p != NULL);
if (ecma_get_lex_env_type (lex_env_p) == ECMA_LEXICAL_ENVIRONMENT_DECLARATIVE)
{
ecma_property_t *property_p = ecma_get_named_data_property (lex_env_p, name_p);
ecma_value_t prop_value = ecma_get_named_data_property_value (property_p);
/* is the binding mutable? */
if (!ecma_is_property_writable (property_p)
&& ecma_is_value_empty (prop_value))
{
/* unitialized immutable binding */
if (is_strict)
{
return ecma_raise_reference_error ("");
}
else
{
return ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED);
}
}
return ecma_copy_value (prop_value, true);
}
else
{
JERRY_ASSERT (ecma_get_lex_env_type (lex_env_p) == ECMA_LEXICAL_ENVIRONMENT_OBJECTBOUND);
ecma_object_t *binding_obj_p = ecma_get_lex_env_binding_object (lex_env_p);
if (ecma_op_object_get_property (binding_obj_p, name_p) == NULL)
{
if (is_strict)
{
return ecma_raise_reference_error ("");
}
else
{
return ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED);
}
}
return ecma_op_object_get (binding_obj_p, name_p);
}
} /* ecma_op_get_binding_value */
/**
* [[Get]] ecma general object's operation
*
* See also:
* ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8
* ECMA-262 v5, 8.12.3
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value
*/
ecma_completion_value_t
ecma_op_general_object_get (ecma_object_t *obj_p, /**< the object */
ecma_string_t *property_name_p) /**< property name */
{
JERRY_ASSERT (obj_p != NULL
&& !ecma_is_lexical_environment (obj_p));
JERRY_ASSERT (property_name_p != NULL);
// 1.
const ecma_property_t *prop_p = ecma_op_object_get_property (obj_p, property_name_p);
// 2.
if (prop_p == NULL)
{
return ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_UNDEFINED);
}
// 3.
if (prop_p->type == ECMA_PROPERTY_NAMEDDATA)
{
return ecma_make_normal_completion_value (ecma_copy_value (ecma_get_named_data_property_value (prop_p),
true));
}
else
{
// 4.
ecma_object_t *getter_p = ecma_get_named_accessor_property_getter (prop_p);
// 5.
if (getter_p == NULL)
{
return ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_UNDEFINED);
}
else
{
return ecma_op_function_call (getter_p,
ecma_make_object_value (obj_p),
NULL);
}
}
JERRY_UNREACHABLE ();
} /* ecma_op_general_object_get */
/**
* HasBinding operation.
*
* See also: ECMA-262 v5, 10.2.1
*
* @return true / false
*/
bool
ecma_op_has_binding (ecma_object_t *lex_env_p, /**< lexical environment */
ecma_string_t *name_p) /**< argument N */
{
JERRY_ASSERT (lex_env_p != NULL
&& ecma_is_lexical_environment (lex_env_p));
if (ecma_get_lex_env_type (lex_env_p) == ECMA_LEXICAL_ENVIRONMENT_DECLARATIVE)
{
ecma_property_t *property_p = ecma_find_named_property (lex_env_p, name_p);
return (property_p != NULL);
}
else
{
JERRY_ASSERT (ecma_get_lex_env_type (lex_env_p) == ECMA_LEXICAL_ENVIRONMENT_OBJECTBOUND);
ecma_object_t *binding_obj_p = ecma_get_lex_env_binding_object (lex_env_p);
return (ecma_op_object_get_property (binding_obj_p, name_p) != NULL);
}
} /* ecma_op_has_binding */
/**
* PutValue operation part (object base).
*
* See also: ECMA-262 v5, 8.7.2, section 4
*
* @return ecma value
* Returned value must be freed with ecma_free_value.
*/
ecma_value_t
ecma_op_put_value_object_base (ecma_reference_t ref, /**< ECMA-reference */
ecma_value_t value) /**< ECMA-value */
{
const ecma_value_t base = ref.base;
const bool is_unresolvable_reference = ecma_is_value_undefined (base);
const bool has_primitive_base = (ecma_is_value_boolean (base)
|| ecma_is_value_number (base)
|| ecma_is_value_string (base));
const bool has_object_base = (ecma_is_value_object (base)
&& !(ecma_is_lexical_environment (ecma_get_object_from_value (base))));
const bool is_property_reference = has_primitive_base || has_object_base;
JERRY_ASSERT (!is_unresolvable_reference);
JERRY_ASSERT (is_property_reference);
// 4.a
if (!has_primitive_base)
{
// 4.b case 1
ecma_object_t *obj_p = ecma_get_object_from_value (base);
JERRY_ASSERT (obj_p != NULL
&& !ecma_is_lexical_environment (obj_p));
ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
ECMA_TRY_CATCH (put_ret_value,
ecma_op_object_put (obj_p,
ECMA_GET_NON_NULL_POINTER (ecma_string_t,
ref.referenced_name_cp),
value,
ref.is_strict),
ret_value);
ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
ECMA_FINALIZE (put_ret_value);
return ret_value;
}
else
{
// 4.b case 2
ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
// sub_1.
ECMA_TRY_CATCH (obj_base, ecma_op_to_object (base), ret_value);
ecma_object_t *obj_p = ecma_get_object_from_value (obj_base);
JERRY_ASSERT (obj_p != NULL
&& !ecma_is_lexical_environment (obj_p));
ecma_string_t *referenced_name_p = ECMA_GET_NON_NULL_POINTER (ecma_string_t,
ref.referenced_name_cp);
// sub_2.
if (!ecma_op_object_can_put (obj_p, referenced_name_p))
{
ret_value = ecma_reject_put (ref.is_strict);
}
else
{
// sub_3.
ecma_property_t *own_prop_p = ecma_op_object_get_own_property (obj_p, referenced_name_p);
// sub_5.
ecma_property_t *prop_p = ecma_op_object_get_property (obj_p, referenced_name_p);
// sub_4., sub_7
if ((own_prop_p != NULL && (own_prop_p->flags & ECMA_PROPERTY_FLAG_NAMEDDATA))
|| (prop_p == NULL)
|| !(prop_p->flags & ECMA_PROPERTY_FLAG_NAMEDACCESSOR))
{
ret_value = ecma_reject_put (ref.is_strict);
}
else
{
// sub_6.
JERRY_ASSERT (prop_p != NULL && (prop_p->flags & ECMA_PROPERTY_FLAG_NAMEDACCESSOR));
ecma_object_t *setter_p = ecma_get_named_accessor_property_setter (prop_p);
JERRY_ASSERT (setter_p != NULL);
ECMA_TRY_CATCH (call_ret,
ecma_op_function_call (setter_p, base, &value, 1),
ret_value);
ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
ECMA_FINALIZE (call_ret);
}
}
ECMA_FINALIZE (obj_base);
return ret_value;
}
} /* ecma_op_put_value_object_base */
/**
* GetBindingValue operation.
*
* See also: ECMA-262 v5, 10.2.1
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value.
*/
ecma_completion_value_t
ecma_op_get_binding_value (ecma_object_t *lex_env_p, /**< lexical environment */
ecma_string_t *name_p, /**< argument N */
bool is_strict) /**< argument S */
{
JERRY_ASSERT (lex_env_p != NULL
&& ecma_is_lexical_environment (lex_env_p));
JERRY_ASSERT (name_p != NULL);
if (ecma_get_lex_env_type (lex_env_p) == ECMA_LEXICAL_ENVIRONMENT_DECLARATIVE)
{
#ifndef JERRY_NDEBUG
# ifdef CONFIG_ECMA_COMPACT_PROFILE
bool is_equal = false;
ecma_string_t *arguments_magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_ARGUMENTS);
if (ecma_compare_ecma_strings (name_p, arguments_magic_string_p))
{
is_equal = true;
}
ecma_deref_ecma_string (arguments_magic_string_p);
JERRY_ASSERT (!is_equal);
if (is_equal)
{
return ecma_make_throw_obj_completion_value (ecma_builtin_get (ECMA_BUILTIN_ID_COMPACT_PROFILE_ERROR));
}
# endif /* CONFIG_ECMA_COMPACT_PROFILE */
#endif /* !JERRY_NDEBUG */
ecma_property_t *property_p = ecma_get_named_data_property (lex_env_p, name_p);
ecma_value_t prop_value = ecma_get_named_data_property_value (property_p);
/* is the binding mutable? */
if (!ecma_is_property_writable (property_p)
&& ecma_is_value_empty (prop_value))
{
/* unitialized immutable binding */
if (is_strict)
{
return ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_REFERENCE));
}
else
{
return ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_UNDEFINED);
}
}
return ecma_make_normal_completion_value (ecma_copy_value (prop_value, true));
}
else
{
JERRY_ASSERT (ecma_get_lex_env_type (lex_env_p) == ECMA_LEXICAL_ENVIRONMENT_OBJECTBOUND);
ecma_object_t *binding_obj_p = ecma_get_lex_env_binding_object (lex_env_p);
if (ecma_op_object_get_property (binding_obj_p, name_p) == NULL)
{
if (is_strict)
{
return ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_REFERENCE));
}
else
{
return ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_UNDEFINED);
}
}
return ecma_op_object_get (binding_obj_p, name_p);
}
} /* ecma_op_get_binding_value */
/**
* 'for-in' opcode handler
*
* See also:
* ECMA-262 v5, 12.6.4
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value
*/
ecma_completion_value_t
opfunc_for_in (vm_instr_t instr, /**< instruction */
vm_frame_ctx_t *int_data_p) /**< interpreter context */
{
const idx_t expr_idx = instr.data.for_in.expr;
const idx_t block_end_oc_idx_1 = instr.data.for_in.oc_idx_1;
const idx_t block_end_oc_idx_2 = instr.data.for_in.oc_idx_2;
const vm_instr_counter_t for_in_end_oc = (vm_instr_counter_t) (
vm_calc_instr_counter_from_idx_idx (block_end_oc_idx_1,
block_end_oc_idx_2) + int_data_p->pos);
ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();
/* 1., 2. */
ECMA_TRY_CATCH (expr_value,
get_variable_value (int_data_p,
expr_idx,
false),
ret_value);
int_data_p->pos++;
vm_instr_t meta_instr = vm_get_instr (int_data_p->instrs_p, for_in_end_oc);
JERRY_ASSERT (meta_instr.op_idx == VM_OP_META);
JERRY_ASSERT (meta_instr.data.meta.type == OPCODE_META_TYPE_END_FOR_IN);
/* 3. */
if (!ecma_is_value_undefined (expr_value)
&& !ecma_is_value_null (expr_value))
{
/* 4. */
ECMA_TRY_CATCH (obj_expr_value,
ecma_op_to_object (expr_value),
ret_value);
ecma_object_t *obj_p = ecma_get_object_from_value (obj_expr_value);
ecma_collection_iterator_t names_iterator;
ecma_collection_header_t *names_p = vm_helper_for_in_enumerate_properties_names (obj_p);
if (names_p != NULL)
{
ecma_collection_iterator_init (&names_iterator, names_p);
const vm_instr_counter_t for_in_body_begin_oc = int_data_p->pos;
const vm_instr_counter_t for_in_body_end_oc = for_in_end_oc;
while (ecma_collection_iterator_next (&names_iterator))
{
ecma_value_t name_value = *names_iterator.current_value_p;
ecma_string_t *name_p = ecma_get_string_from_value (name_value);
if (ecma_op_object_get_property (obj_p, name_p) != NULL)
{
ecma_completion_value_t completion = set_variable_value (int_data_p,
int_data_p->pos,
OPCODE_REG_SPECIAL_FOR_IN_PROPERTY_NAME,
name_value);
JERRY_ASSERT (ecma_is_completion_value_empty (completion));
vm_run_scope_t run_scope_for_in = { for_in_body_begin_oc, for_in_body_end_oc };
ecma_completion_value_t for_in_body_completion = vm_loop (int_data_p, &run_scope_for_in);
if (ecma_is_completion_value_empty (for_in_body_completion))
{
JERRY_ASSERT (int_data_p->pos == for_in_body_end_oc);
int_data_p->pos = for_in_body_begin_oc;
}
else
{
JERRY_ASSERT (ecma_is_completion_value_throw (for_in_body_completion)
|| ecma_is_completion_value_return (for_in_body_completion)
|| ecma_is_completion_value_jump (for_in_body_completion));
JERRY_ASSERT (int_data_p->pos <= for_in_body_end_oc);
ret_value = for_in_body_completion;
break;
}
}
}
ecma_free_values_collection (names_p, true);
}
ECMA_FINALIZE (obj_expr_value);
}
int_data_p->pos = (vm_instr_counter_t) (for_in_end_oc + 1u);
ECMA_FINALIZE (expr_value);
return ret_value;
} /* opfunc_for_in */
/**
* RegExp helper function to start the recursive matching algorithm
* and create the result Array object
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value
*/
ecma_completion_value_t
ecma_regexp_exec_helper (ecma_value_t regexp_value, /**< RegExp object */
ecma_value_t input_string, /**< input string */
bool ignore_global) /**< ignore global flag */
{
ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();
JERRY_ASSERT (ecma_is_value_object (regexp_value));
JERRY_ASSERT (ecma_is_value_string (input_string));
ecma_object_t *regexp_object_p = ecma_get_object_from_value (regexp_value);
JERRY_ASSERT (ecma_object_get_class_name (regexp_object_p) == LIT_MAGIC_STRING_REGEXP_UL);
ecma_property_t *bytecode_prop_p = ecma_get_internal_property (regexp_object_p,
ECMA_INTERNAL_PROPERTY_REGEXP_BYTECODE);
re_bytecode_t *bc_p = ECMA_GET_POINTER (re_bytecode_t, bytecode_prop_p->u.internal_property.value);
ecma_string_t *input_string_p = ecma_get_string_from_value (input_string);
lit_utf8_size_t input_string_size = ecma_string_get_size (input_string_p);
MEM_DEFINE_LOCAL_ARRAY (input_utf8_buffer_p, input_string_size, lit_utf8_byte_t);
ecma_string_to_utf8_string (input_string_p, input_utf8_buffer_p, (ssize_t) input_string_size);
lit_utf8_iterator_t iterator = lit_utf8_iterator_create (input_utf8_buffer_p, input_string_size);
re_matcher_ctx_t re_ctx;
re_ctx.input_start_p = iterator.buf_p;
re_ctx.input_end_p = iterator.buf_p + iterator.buf_size;
/* 1. Read bytecode header and init regexp matcher context. */
re_ctx.flags = (uint8_t) re_get_value (&bc_p);
if (ignore_global)
{
re_ctx.flags &= (uint8_t) ~RE_FLAG_GLOBAL;
}
JERRY_DDLOG ("Exec with flags [global: %d, ignoreCase: %d, multiline: %d]\n",
re_ctx.flags & RE_FLAG_GLOBAL,
re_ctx.flags & RE_FLAG_IGNORE_CASE,
re_ctx.flags & RE_FLAG_MULTILINE);
re_ctx.num_of_captures = re_get_value (&bc_p);
JERRY_ASSERT (re_ctx.num_of_captures % 2 == 0);
re_ctx.num_of_non_captures = re_get_value (&bc_p);
/* We create an invalid iterator, that will be used to identify unused result values. */
lit_utf8_iterator_t unused_iter = lit_utf8_iterator_create (NULL, 0);
unused_iter.buf_p = (lit_utf8_byte_t *) 1;
MEM_DEFINE_LOCAL_ARRAY (saved_p, re_ctx.num_of_captures + re_ctx.num_of_non_captures, lit_utf8_iterator_t);
for (uint32_t i = 0; i < re_ctx.num_of_captures + re_ctx.num_of_non_captures; i++)
{
saved_p[i] = unused_iter;
}
re_ctx.saved_p = saved_p;
uint32_t num_of_iter_length = (re_ctx.num_of_captures / 2) + (re_ctx.num_of_non_captures - 1);
MEM_DEFINE_LOCAL_ARRAY (num_of_iter_p, num_of_iter_length, uint32_t);
for (uint32_t i = 0; i < num_of_iter_length; i++)
{
num_of_iter_p[i] = 0u;
}
bool is_match = false;
re_ctx.num_of_iterations_p = num_of_iter_p;
int32_t index = 0;
ecma_length_t input_str_len = lit_utf8_string_length (iterator.buf_p, iterator.buf_size);
if (iterator.buf_p && (re_ctx.flags & RE_FLAG_GLOBAL))
{
ecma_string_t *magic_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_LASTINDEX_UL);
ecma_property_t *lastindex_prop_p = ecma_op_object_get_property (regexp_object_p, magic_str_p);
ECMA_OP_TO_NUMBER_TRY_CATCH (lastindex_num, lastindex_prop_p->u.named_data_property.value, ret_value)
index = ecma_number_to_int32 (lastindex_num);
JERRY_ASSERT (iterator.buf_pos.offset == 0 && !iterator.buf_pos.is_non_bmp_middle);
if (!lit_utf8_iterator_is_eos (&iterator)
&& index <= (int32_t) input_str_len
&& index > 0)
{
lit_utf8_iterator_advance (&iterator, (ecma_length_t) index);
}
ECMA_OP_TO_NUMBER_FINALIZE (lastindex_num);
ecma_deref_ecma_string (magic_str_p);
}
/* 2. Try to match */
lit_utf8_iterator_t sub_iter = lit_utf8_iterator_create (NULL, 0);
while (ecma_is_completion_value_empty (ret_value))
{
if (index < 0 || index > (int32_t) input_str_len)
{
if (re_ctx.flags & RE_FLAG_GLOBAL)
{
ecma_string_t *magic_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_LASTINDEX_UL);
ecma_number_t *lastindex_num_p = ecma_alloc_number ();
*lastindex_num_p = ECMA_NUMBER_ZERO;
ecma_op_object_put (regexp_object_p, magic_str_p, ecma_make_number_value (lastindex_num_p), true);
ecma_dealloc_number (lastindex_num_p);
ecma_deref_ecma_string (magic_str_p);
}
is_match = false;
break;
}
else
{
ECMA_TRY_CATCH (match_value, re_match_regexp (&re_ctx, bc_p, iterator, &sub_iter), ret_value);
if (ecma_is_value_true (match_value))
{
is_match = true;
break;
}
if (!lit_utf8_iterator_is_eos (&iterator))
{
lit_utf8_iterator_advance (&iterator, 1);
}
index++;
ECMA_FINALIZE (match_value);
}
}
if (iterator.buf_p && (re_ctx.flags & RE_FLAG_GLOBAL))
{
ecma_string_t *magic_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_LASTINDEX_UL);
ecma_number_t *lastindex_num_p = ecma_alloc_number ();
*lastindex_num_p = sub_iter.buf_pos.offset;
ecma_op_object_put (regexp_object_p, magic_str_p, ecma_make_number_value (lastindex_num_p), true);
ecma_dealloc_number (lastindex_num_p);
ecma_deref_ecma_string (magic_str_p);
}
/* 3. Fill the result array or return with 'undefiend' */
if (ecma_is_completion_value_empty (ret_value))
{
if (is_match)
{
ecma_completion_value_t result_array = ecma_op_create_array_object (0, 0, false);
ecma_object_t *result_array_obj_p = ecma_get_object_from_completion_value (result_array);
ecma_string_t *input_str_p = ecma_new_ecma_string_from_utf8 (iterator.buf_p, iterator.buf_size);
re_set_result_array_properties (result_array_obj_p, input_str_p, re_ctx.num_of_captures / 2, index);
ecma_deref_ecma_string (input_str_p);
for (uint32_t i = 0; i < re_ctx.num_of_captures; i += 2)
{
ecma_string_t *index_str_p = ecma_new_ecma_string_from_uint32 (i / 2);
/* Note: 'iter_p->buf_p == NULL' means the input is empty string */
if ((re_ctx.saved_p[i].buf_p != unused_iter.buf_p && re_ctx.saved_p[i + 1].buf_p != unused_iter.buf_p)
&& re_ctx.saved_p[i + 1].buf_pos.offset >= re_ctx.saved_p[i].buf_pos.offset)
{
ecma_length_t capture_str_len;
capture_str_len = (ecma_length_t) re_ctx.saved_p[i + 1].buf_pos.offset - re_ctx.saved_p[i].buf_pos.offset;
ecma_string_t *capture_str_p;
if (capture_str_len > 0)
{
const lit_utf8_byte_t *utf8_str_p = re_ctx.saved_p[i].buf_p + re_ctx.saved_p[i].buf_pos.offset;
capture_str_p = ecma_new_ecma_string_from_utf8 (utf8_str_p, capture_str_len);
}
else
{
capture_str_p = ecma_get_magic_string (LIT_MAGIC_STRING__EMPTY);
}
ecma_op_object_put (result_array_obj_p, index_str_p, ecma_make_string_value (capture_str_p), true);
ecma_deref_ecma_string (capture_str_p);
}
else
{
ecma_op_object_put (result_array_obj_p,
index_str_p,
ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED),
true);
}
ecma_deref_ecma_string (index_str_p);
}
ret_value = result_array;
}
else
{
ret_value = ecma_make_normal_completion_value (ecma_make_simple_value (ECMA_SIMPLE_VALUE_NULL));
}
}
MEM_FINALIZE_LOCAL_ARRAY (num_of_iter_p);
MEM_FINALIZE_LOCAL_ARRAY (saved_p);
MEM_FINALIZE_LOCAL_ARRAY (input_utf8_buffer_p);
return ret_value;
} /* ecma_regexp_exec_helper */
/**
* [[CanPut]] ecma general object's operation
*
* See also:
* ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8
* ECMA-262 v5, 8.12.4
*
* @return true - if [[Put]] with the given property name can be performed;
* false - otherwise.
*/
bool
ecma_op_general_object_can_put (ecma_object_t *obj_p, /**< the object */
ecma_string_t *property_name_p) /**< property name */
{
JERRY_ASSERT (obj_p != NULL
&& !ecma_is_lexical_environment (obj_p));
JERRY_ASSERT (property_name_p != NULL);
// 1.
ecma_property_t *prop_p = ecma_op_object_get_own_property (obj_p, property_name_p);
// 2.
if (prop_p != NULL)
{
// a.
if (prop_p->type == ECMA_PROPERTY_NAMEDACCESSOR)
{
ecma_object_t *setter_p = ecma_get_named_accessor_property_setter (prop_p);
// i.
if (setter_p == NULL)
{
return false;
}
// ii.
return true;
}
else
{
// b.
JERRY_ASSERT (prop_p->type == ECMA_PROPERTY_NAMEDDATA);
return ecma_is_property_writable (prop_p);
}
}
// 3.
ecma_object_t *proto_p = ecma_get_object_prototype (obj_p);
// 4.
if (proto_p == NULL)
{
return ecma_get_object_extensible (obj_p);
}
// 5.
ecma_property_t *inherited_p = ecma_op_object_get_property (proto_p, property_name_p);
// 6.
if (inherited_p == NULL)
{
return ecma_get_object_extensible (obj_p);
}
// 7.
if (inherited_p->type == ECMA_PROPERTY_NAMEDACCESSOR)
{
ecma_object_t *setter_p = ecma_get_named_accessor_property_setter (inherited_p);
// a.
if (setter_p == NULL)
{
return false;
}
// b.
return true;
}
else
{
// 8.
JERRY_ASSERT (inherited_p->type == ECMA_PROPERTY_NAMEDDATA);
// a.
if (!ecma_get_object_extensible (obj_p))
{
return false;
}
else
{
// b.
return ecma_is_property_writable (inherited_p);
}
}
JERRY_UNREACHABLE ();
} /* ecma_op_general_object_can_put */
/**
* [[Put]] ecma general object's operation
*
* See also:
* ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8
* ECMA-262 v5, 8.12.5
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value
*/
ecma_completion_value_t
ecma_op_general_object_put (ecma_object_t *obj_p, /**< the object */
ecma_string_t *property_name_p, /**< property name */
ecma_value_t value, /**< ecma-value */
bool is_throw) /**< flag that controls failure handling */
{
JERRY_ASSERT (obj_p != NULL
&& !ecma_is_lexical_environment (obj_p));
JERRY_ASSERT (property_name_p != NULL);
// 1.
if (!ecma_op_object_can_put (obj_p, property_name_p))
{
if (is_throw)
{
// a.
return ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_TYPE));
}
else
{
// b.
return ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_FALSE);
}
}
// 2.
ecma_property_t *own_desc_p = ecma_op_object_get_own_property (obj_p, property_name_p);
// 3.
if (own_desc_p != NULL
&& own_desc_p->type == ECMA_PROPERTY_NAMEDDATA)
{
// a.
ecma_property_descriptor_t value_desc = ecma_make_empty_property_descriptor ();
{
value_desc.is_value_defined = true;
value_desc.value = value;
}
// b., c.
return ecma_op_object_define_own_property (obj_p,
property_name_p,
&value_desc,
is_throw);
}
// 4.
ecma_property_t *desc_p = ecma_op_object_get_property (obj_p, property_name_p);
// 5.
if (desc_p != NULL
&& desc_p->type == ECMA_PROPERTY_NAMEDACCESSOR)
{
// a.
ecma_object_t *setter_p = ecma_get_named_accessor_property_setter (desc_p);
JERRY_ASSERT (setter_p != NULL);
ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();
ECMA_TRY_CATCH (call_ret,
ecma_op_function_call_array_args (setter_p,
ecma_make_object_value (obj_p),
&value,
1),
ret_value);
ret_value = ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_TRUE);
ECMA_FINALIZE (call_ret);
return ret_value;
}
else
{
// 6.a., 6.b.
return ecma_builtin_helper_def_prop (obj_p,
property_name_p,
value,
true, /* Writable */
true, /* Enumerable */
true, /* Configurable */
is_throw); /* Failure handling */
}
JERRY_UNREACHABLE ();
} /* ecma_op_general_object_put */
/**
* ToPropertyDescriptor operation.
*
* See also:
* ECMA-262 v5, 8.10.5
*
* @return ecma value
* Returned value must be freed with ecma_free_value
*/
ecma_value_t
ecma_op_to_property_descriptor (ecma_value_t obj_value, /**< object value */
ecma_property_descriptor_t *out_prop_desc_p) /**< [out] filled property descriptor
if return value is normal
empty completion value */
{
ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
// 1.
if (!ecma_is_value_object (obj_value))
{
ret_value = ecma_raise_type_error (ECMA_ERR_MSG (""));
}
else
{
ecma_object_t *obj_p = ecma_get_object_from_value (obj_value);
// 2.
ecma_property_descriptor_t prop_desc = ecma_make_empty_property_descriptor ();
// 3.
ecma_string_t *enumerable_magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_ENUMERABLE);
if (ecma_op_object_get_property (obj_p, enumerable_magic_string_p) != NULL)
{
ECMA_TRY_CATCH (enumerable_prop_value,
ecma_op_object_get (obj_p, enumerable_magic_string_p),
ret_value);
prop_desc.is_enumerable_defined = true;
prop_desc.is_enumerable = ecma_op_to_boolean (enumerable_prop_value);
ECMA_FINALIZE (enumerable_prop_value);
}
ecma_deref_ecma_string (enumerable_magic_string_p);
if (!ecma_is_value_error (ret_value))
{
JERRY_ASSERT (ecma_is_value_empty (ret_value));
// 4.
ecma_string_t *configurable_magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_CONFIGURABLE);
if (ecma_op_object_get_property (obj_p, configurable_magic_string_p) != NULL)
{
ECMA_TRY_CATCH (configurable_prop_value,
ecma_op_object_get (obj_p, configurable_magic_string_p),
ret_value);
prop_desc.is_configurable_defined = true;
prop_desc.is_configurable = ecma_op_to_boolean (configurable_prop_value);
ECMA_FINALIZE (configurable_prop_value);
}
ecma_deref_ecma_string (configurable_magic_string_p);
}
if (!ecma_is_value_error (ret_value))
{
JERRY_ASSERT (ecma_is_value_empty (ret_value));
// 5.
ecma_string_t *value_magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_VALUE);
if (ecma_op_object_get_property (obj_p, value_magic_string_p) != NULL)
{
ECMA_TRY_CATCH (value_prop_value,
ecma_op_object_get (obj_p, value_magic_string_p),
ret_value);
prop_desc.is_value_defined = true;
prop_desc.value = ecma_copy_value (value_prop_value);
ECMA_FINALIZE (value_prop_value);
}
ecma_deref_ecma_string (value_magic_string_p);
}
if (!ecma_is_value_error (ret_value))
{
JERRY_ASSERT (ecma_is_value_empty (ret_value));
// 6.
ecma_string_t *writable_magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_WRITABLE);
if (ecma_op_object_get_property (obj_p, writable_magic_string_p) != NULL)
{
ECMA_TRY_CATCH (writable_prop_value,
ecma_op_object_get (obj_p, writable_magic_string_p),
ret_value);
prop_desc.is_writable_defined = true;
prop_desc.is_writable = ecma_op_to_boolean (writable_prop_value);
ECMA_FINALIZE (writable_prop_value);
}
ecma_deref_ecma_string (writable_magic_string_p);
}
if (!ecma_is_value_error (ret_value))
{
JERRY_ASSERT (ecma_is_value_empty (ret_value));
// 7.
ecma_string_t *get_magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_GET);
if (ecma_op_object_get_property (obj_p, get_magic_string_p) != NULL)
{
ECMA_TRY_CATCH (get_prop_value,
ecma_op_object_get (obj_p, get_magic_string_p),
ret_value);
if (!ecma_op_is_callable (get_prop_value)
&& !ecma_is_value_undefined (get_prop_value))
{
ret_value = ecma_raise_type_error (ECMA_ERR_MSG (""));
}
else
{
prop_desc.is_get_defined = true;
if (ecma_is_value_undefined (get_prop_value))
{
prop_desc.get_p = NULL;
}
else
{
JERRY_ASSERT (ecma_is_value_object (get_prop_value));
ecma_object_t *get_p = ecma_get_object_from_value (get_prop_value);
ecma_ref_object (get_p);
prop_desc.get_p = get_p;
}
}
ECMA_FINALIZE (get_prop_value);
}
ecma_deref_ecma_string (get_magic_string_p);
}
if (!ecma_is_value_error (ret_value))
{
JERRY_ASSERT (ecma_is_value_empty (ret_value));
// 8.
ecma_string_t *set_magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_SET);
if (ecma_op_object_get_property (obj_p, set_magic_string_p) != NULL)
{
ECMA_TRY_CATCH (set_prop_value,
ecma_op_object_get (obj_p, set_magic_string_p),
ret_value);
if (!ecma_op_is_callable (set_prop_value)
&& !ecma_is_value_undefined (set_prop_value))
{
ret_value = ecma_raise_type_error (ECMA_ERR_MSG (""));
}
else
{
prop_desc.is_set_defined = true;
if (ecma_is_value_undefined (set_prop_value))
{
prop_desc.set_p = NULL;
}
else
{
JERRY_ASSERT (ecma_is_value_object (set_prop_value));
ecma_object_t *set_p = ecma_get_object_from_value (set_prop_value);
ecma_ref_object (set_p);
prop_desc.set_p = set_p;
}
}
ECMA_FINALIZE (set_prop_value);
}
ecma_deref_ecma_string (set_magic_string_p);
}
if (!ecma_is_value_error (ret_value))
{
JERRY_ASSERT (ecma_is_value_empty (ret_value));
// 9.
if (prop_desc.is_get_defined
|| prop_desc.is_set_defined)
{
if (prop_desc.is_value_defined
|| prop_desc.is_writable_defined)
{
ret_value = ecma_raise_type_error (ECMA_ERR_MSG (""));
}
}
}
if (!ecma_is_value_error (ret_value))
{
JERRY_ASSERT (ecma_is_value_empty (ret_value));
}
else
{
ecma_free_property_descriptor (&prop_desc);
}
*out_prop_desc_p = prop_desc;
}
return ret_value;
} /* ecma_op_to_property_descriptor */
/**
* Helper function for concatenating an ecma_value_t to an Array.
*
* See also:
* ECMA-262 v5, 15.4.4.4 steps 5.b - 5.c
*
* Used by:
* - The Array.prototype.concat routine.
*
* @return ecma value
* Returned value must be freed with ecma_free_value.
*/
ecma_value_t
ecma_builtin_helper_array_concat_value (ecma_object_t *obj_p, /**< array */
uint32_t *length_p, /**< [in,out] array's length */
ecma_value_t value) /**< value to concat */
{
ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
/* 5.b */
if (ecma_is_value_object (value)
&& (ecma_object_get_class_name (ecma_get_object_from_value (value)) == LIT_MAGIC_STRING_ARRAY_UL))
{
ecma_string_t *magic_string_length_p = ecma_new_ecma_length_string ();
/* 5.b.ii */
ECMA_TRY_CATCH (arg_len_value,
ecma_op_object_get (ecma_get_object_from_value (value),
magic_string_length_p),
ret_value);
ECMA_OP_TO_NUMBER_TRY_CATCH (arg_len_number, arg_len_value, ret_value);
uint32_t arg_len = ecma_number_to_uint32 (arg_len_number);
/* 5.b.iii */
for (uint32_t array_index = 0;
array_index < arg_len && ecma_is_value_empty (ret_value);
array_index++)
{
ecma_string_t *array_index_string_p = ecma_new_ecma_string_from_uint32 (array_index);
/* 5.b.iii.2 */
if (ecma_op_object_get_property (ecma_get_object_from_value (value),
array_index_string_p) != NULL)
{
ecma_string_t *new_array_index_string_p = ecma_new_ecma_string_from_uint32 (*length_p + array_index);
/* 5.b.iii.3.a */
ECMA_TRY_CATCH (get_value,
ecma_op_object_get (ecma_get_object_from_value (value),
array_index_string_p),
ret_value);
/* 5.b.iii.3.b */
/* This will always be a simple value since 'is_throw' is false, so no need to free. */
ecma_value_t put_comp = ecma_builtin_helper_def_prop (obj_p,
new_array_index_string_p,
get_value,
true, /* Writable */
true, /* Enumerable */
true, /* Configurable */
false); /* Failure handling */
JERRY_ASSERT (ecma_is_value_true (put_comp));
ECMA_FINALIZE (get_value);
ecma_deref_ecma_string (new_array_index_string_p);
}
ecma_deref_ecma_string (array_index_string_p);
}
*length_p += arg_len;
ECMA_OP_TO_NUMBER_FINALIZE (arg_len_number);
ECMA_FINALIZE (arg_len_value);
ecma_deref_ecma_string (magic_string_length_p);
}
else
{
ecma_string_t *new_array_index_string_p = ecma_new_ecma_string_from_uint32 ((*length_p)++);
/* 5.c.i */
/* This will always be a simple value since 'is_throw' is false, so no need to free. */
ecma_value_t put_comp = ecma_builtin_helper_def_prop (obj_p,
new_array_index_string_p,
value,
true, /* Writable */
true, /* Enumerable */
true, /* Configurable */
false); /* Failure handling */
JERRY_ASSERT (ecma_is_value_true (put_comp));
ecma_deref_ecma_string (new_array_index_string_p);
}
if (ecma_is_value_empty (ret_value))
{
ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_TRUE);
}
return ret_value;
} /* ecma_builtin_helper_array_concat_value */
/**
* GetValue operation part (object base).
*
* See also: ECMA-262 v5, 8.7.1, section 4
*
* @return ecma value
* Returned value must be freed with ecma_free_value.
*/
ecma_value_t
ecma_op_get_value_object_base (ecma_reference_t ref) /**< ECMA-reference */
{
const ecma_value_t base = ref.base;
const bool is_unresolvable_reference = ecma_is_value_undefined (base);
const bool has_primitive_base = (ecma_is_value_boolean (base)
|| ecma_is_value_number (base)
|| ecma_is_value_string (base));
const bool has_object_base = (ecma_is_value_object (base)
&& !(ecma_is_lexical_environment (ecma_get_object_from_value (base))));
const bool is_property_reference = has_primitive_base || has_object_base;
JERRY_ASSERT (!is_unresolvable_reference);
JERRY_ASSERT (is_property_reference);
ecma_string_t *referenced_name_p = ECMA_GET_NON_NULL_POINTER (ecma_string_t,
ref.referenced_name_cp);
// 4.a
if (!has_primitive_base)
{
// 4.b case 1
ecma_object_t *obj_p = ecma_get_object_from_value (base);
JERRY_ASSERT (obj_p != NULL
&& !ecma_is_lexical_environment (obj_p));
return ecma_op_object_get (obj_p, referenced_name_p);
}
else
{
// 4.b case 2
ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
// 1.
ECMA_TRY_CATCH (obj_base, ecma_op_to_object (base), ret_value);
ecma_object_t *obj_p = ecma_get_object_from_value (obj_base);
JERRY_ASSERT (obj_p != NULL
&& !ecma_is_lexical_environment (obj_p));
// 2.
ecma_property_t *prop_p = ecma_op_object_get_property (obj_p, referenced_name_p);
if (prop_p == NULL)
{
// 3.
ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED);
}
else if (prop_p->flags & ECMA_PROPERTY_FLAG_NAMEDDATA)
{
// 4.
ret_value = ecma_copy_value (ecma_get_named_data_property_value (prop_p), true);
}
else
{
// 5.
JERRY_ASSERT (prop_p->flags & ECMA_PROPERTY_FLAG_NAMEDACCESSOR);
ecma_object_t *obj_p = ecma_get_named_accessor_property_getter (prop_p);
// 6.
if (obj_p == NULL)
{
ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED);
}
else
{
// 7.
ret_value = ecma_op_function_call (obj_p, base, NULL, 0);
}
}
ECMA_FINALIZE (obj_base);
return ret_value;
}
} /* ecma_op_get_value_object_base */
/**
* The RegExp.prototype object's 'toString' routine
*
* See also:
* ECMA-262 v5, 15.10.6.4
*
* @return ecma value
* Returned value must be freed with ecma_free_value.
*/
static ecma_value_t
ecma_builtin_regexp_prototype_to_string (ecma_value_t this_arg) /**< this argument */
{
ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
if (!ecma_is_value_object (this_arg)
|| ecma_object_get_class_name (ecma_get_object_from_value (this_arg)) != LIT_MAGIC_STRING_REGEXP_UL)
{
ret_value = ecma_raise_type_error (ECMA_ERR_MSG ("Incomplete RegExp type"));
}
else
{
ECMA_TRY_CATCH (obj_this,
ecma_op_to_object (this_arg),
ret_value);
ecma_object_t *obj_p = ecma_get_object_from_value (obj_this);
/* Get RegExp source from the source property */
ecma_string_t *magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_SOURCE);
ecma_property_t *source_prop_p = ecma_op_object_get_property (obj_p, magic_string_p);
ecma_deref_ecma_string (magic_string_p);
ecma_string_t *src_sep_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_SLASH_CHAR);
ecma_string_t *source_str_p = ecma_get_string_from_value (ecma_get_named_data_property_value (source_prop_p));
ecma_string_t *output_str_p = ecma_concat_ecma_strings (src_sep_str_p, source_str_p);
ecma_string_t *concat_p = ecma_concat_ecma_strings (output_str_p, src_sep_str_p);
ecma_deref_ecma_string (src_sep_str_p);
ecma_deref_ecma_string (output_str_p);
output_str_p = concat_p;
/* Check the global flag */
magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_GLOBAL);
ecma_property_t *global_prop_p = ecma_op_object_get_property (obj_p, magic_string_p);
ecma_deref_ecma_string (magic_string_p);
if (ecma_is_value_true (ecma_get_named_data_property_value (global_prop_p)))
{
ecma_string_t *g_flag_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_G_CHAR);
concat_p = ecma_concat_ecma_strings (output_str_p, g_flag_str_p);
ecma_deref_ecma_string (output_str_p);
ecma_deref_ecma_string (g_flag_str_p);
output_str_p = concat_p;
}
/* Check the ignoreCase flag */
magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_IGNORECASE_UL);
ecma_property_t *ignorecase_prop_p = ecma_op_object_get_property (obj_p, magic_string_p);
ecma_deref_ecma_string (magic_string_p);
if (ecma_is_value_true (ecma_get_named_data_property_value (ignorecase_prop_p)))
{
ecma_string_t *ic_flag_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_I_CHAR);
concat_p = ecma_concat_ecma_strings (output_str_p, ic_flag_str_p);
ecma_deref_ecma_string (output_str_p);
ecma_deref_ecma_string (ic_flag_str_p);
output_str_p = concat_p;
}
/* Check the global flag */
magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_MULTILINE);
ecma_property_t *multiline_prop_p = ecma_op_object_get_property (obj_p, magic_string_p);
ecma_deref_ecma_string (magic_string_p);
if (ecma_is_value_true (ecma_get_named_data_property_value (multiline_prop_p)))
{
ecma_string_t *m_flag_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_M_CHAR);
concat_p = ecma_concat_ecma_strings (output_str_p, m_flag_str_p);
ecma_deref_ecma_string (output_str_p);
ecma_deref_ecma_string (m_flag_str_p);
output_str_p = concat_p;
}
ret_value = ecma_make_string_value (output_str_p);
ECMA_FINALIZE (obj_this);
}
return ret_value;
} /* ecma_builtin_regexp_prototype_to_string */
/**
* The RegExp.prototype object's 'compile' routine
*
* See also:
* ECMA-262 v5, B.2.5.1
*
* @return undefined - if compiled successfully
* error ecma value - otherwise
*
* Returned value must be freed with ecma_free_value.
*/
static ecma_value_t
ecma_builtin_regexp_prototype_compile (ecma_value_t this_arg, /**< this argument */
ecma_value_t pattern_arg, /**< pattern or RegExp object */
ecma_value_t flags_arg) /**< flags */
{
ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
if (!ecma_is_value_object (this_arg)
|| ecma_object_get_class_name (ecma_get_object_from_value (this_arg)) != LIT_MAGIC_STRING_REGEXP_UL)
{
ret_value = ecma_raise_type_error (ECMA_ERR_MSG ("Incomplete RegExp type"));
}
else
{
ecma_string_t *pattern_string_p = NULL;
uint16_t flags = 0;
if (ecma_is_value_object (pattern_arg)
&& ecma_object_get_class_name (ecma_get_object_from_value (pattern_arg)) == LIT_MAGIC_STRING_REGEXP_UL)
{
if (!ecma_is_value_undefined (flags_arg))
{
ret_value = ecma_raise_type_error (ECMA_ERR_MSG ("Invalid argument of RegExp compile."));
}
else
{
/* Compile from existing RegExp pbject. */
ecma_object_t *target_p = ecma_get_object_from_value (pattern_arg);
/* Get source. */
ecma_string_t *magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_SOURCE);
ecma_property_t *prop_p = ecma_op_object_get_property (target_p, magic_string_p);
pattern_string_p = ecma_get_string_from_value (ecma_get_named_data_property_value (prop_p));
ecma_deref_ecma_string (magic_string_p);
/* Get flags. */
magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_GLOBAL);
prop_p = ecma_op_object_get_property (target_p, magic_string_p);
if (ecma_is_value_true (ecma_get_named_data_property_value (prop_p)))
{
flags |= RE_FLAG_GLOBAL;
}
ecma_deref_ecma_string (magic_string_p);
magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_IGNORECASE_UL);
prop_p = ecma_op_object_get_property (target_p, magic_string_p);
if (ecma_is_value_true (ecma_get_named_data_property_value (prop_p)))
{
flags |= RE_FLAG_IGNORE_CASE;
}
ecma_deref_ecma_string (magic_string_p);
magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_MULTILINE);
prop_p = ecma_op_object_get_property (target_p, magic_string_p);
if (ecma_is_value_true (ecma_get_named_data_property_value (prop_p)))
{
flags |= RE_FLAG_MULTILINE;
}
ecma_deref_ecma_string (magic_string_p);
ECMA_TRY_CATCH (obj_this, ecma_op_to_object (this_arg), ret_value);
ecma_object_t *this_obj_p = ecma_get_object_from_value (obj_this);
/* Get bytecode property. */
ecma_property_t *bc_prop_p = ecma_get_internal_property (this_obj_p,
ECMA_INTERNAL_PROPERTY_REGEXP_BYTECODE);
/* TODO: We currently have to re-compile the bytecode, because
* we can't copy it without knowing its length. */
const re_compiled_code_t *new_bc_p = NULL;
ecma_value_t bc_comp = re_compile_bytecode (&new_bc_p, pattern_string_p, flags);
/* Should always succeed, since we're compiling from a source that has been compiled previously. */
JERRY_ASSERT (ecma_is_value_empty (bc_comp));
re_compiled_code_t *old_bc_p = ECMA_GET_INTERNAL_VALUE_POINTER (re_compiled_code_t,
ecma_get_internal_property_value (bc_prop_p));
if (old_bc_p != NULL)
{
/* Free the old bytecode */
ecma_bytecode_deref ((ecma_compiled_code_t *) old_bc_p);
}
ECMA_SET_INTERNAL_VALUE_POINTER (ECMA_PROPERTY_VALUE_PTR (bc_prop_p)->value, new_bc_p);
re_initialize_props (this_obj_p, pattern_string_p, flags);
ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED);
ECMA_FINALIZE (obj_this);
}
}
else
{
/* Get source string. */
if (!ecma_is_value_undefined (pattern_arg))
{
ECMA_TRY_CATCH (regexp_str_value,
ecma_op_to_string (pattern_arg),
ret_value);
if (ecma_string_is_empty (ecma_get_string_from_value (regexp_str_value)))
{
pattern_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_EMPTY_NON_CAPTURE_GROUP);
}
else
{
pattern_string_p = ecma_get_string_from_value (regexp_str_value);
ecma_ref_ecma_string (pattern_string_p);
}
ECMA_FINALIZE (regexp_str_value);
}
else
{
pattern_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_EMPTY_NON_CAPTURE_GROUP);
}
/* Parse flags. */
if (ecma_is_value_empty (ret_value) && !ecma_is_value_undefined (flags_arg))
{
ECMA_TRY_CATCH (flags_str_value,
ecma_op_to_string (flags_arg),
ret_value);
ECMA_TRY_CATCH (flags_dummy,
re_parse_regexp_flags (ecma_get_string_from_value (flags_str_value), &flags),
ret_value);
ECMA_FINALIZE (flags_dummy);
ECMA_FINALIZE (flags_str_value);
}
if (ecma_is_value_empty (ret_value))
{
ECMA_TRY_CATCH (obj_this, ecma_op_to_object (this_arg), ret_value);
ecma_object_t *this_obj_p = ecma_get_object_from_value (obj_this);
ecma_property_t *bc_prop_p = ecma_get_internal_property (this_obj_p,
ECMA_INTERNAL_PROPERTY_REGEXP_BYTECODE);
/* Try to compile bytecode from new source. */
const re_compiled_code_t *new_bc_p = NULL;
ECMA_TRY_CATCH (bc_dummy,
re_compile_bytecode (&new_bc_p, pattern_string_p, flags),
ret_value);
re_compiled_code_t *old_bc_p = ECMA_GET_INTERNAL_VALUE_POINTER (re_compiled_code_t,
ecma_get_internal_property_value (bc_prop_p));
if (old_bc_p != NULL)
{
/* Free the old bytecode */
ecma_bytecode_deref ((ecma_compiled_code_t *) old_bc_p);
}
ECMA_SET_INTERNAL_VALUE_POINTER (ECMA_PROPERTY_VALUE_PTR (bc_prop_p)->value, new_bc_p);
re_initialize_props (this_obj_p, pattern_string_p, flags);
ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED);
ECMA_FINALIZE (bc_dummy);
ECMA_FINALIZE (obj_this);
}
if (pattern_string_p != NULL)
{
ecma_deref_ecma_string (pattern_string_p);
}
}
}
return ret_value;
} /* ecma_builtin_regexp_prototype_compile */
/**
* Helper function for concatenating an ecma_value_t to an Array.
*
* See also:
* ECMA-262 v5, 15.4.4.4 steps 5.b - 5.c
*
* Used by:
* - The Array.prototype.concat routine.
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value.
*/
ecma_completion_value_t
ecma_builtin_helper_array_concat_value (ecma_object_t *obj_p, /**< array */
uint32_t *length_p, /**< in-out: array's length */
ecma_value_t value) /**< value to concat */
{
ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();
/* 5.b */
if (ecma_is_value_object (value)
&& (ecma_object_get_class_name (ecma_get_object_from_value (value)) == LIT_MAGIC_STRING_ARRAY_UL))
{
ecma_string_t *magic_string_length_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH);
/* 5.b.ii */
ECMA_TRY_CATCH (arg_len_value,
ecma_op_object_get (ecma_get_object_from_value (value),
magic_string_length_p),
ret_value);
ECMA_OP_TO_NUMBER_TRY_CATCH (arg_len_number, arg_len_value, ret_value);
uint32_t arg_len = ecma_number_to_uint32 (arg_len_number);
/* 5.b.iii */
for (uint32_t array_index = 0;
array_index < arg_len && ecma_is_completion_value_empty (ret_value);
array_index++)
{
ecma_string_t *array_index_string_p = ecma_new_ecma_string_from_uint32 (array_index);
/* 5.b.iii.2 */
if (ecma_op_object_get_property (ecma_get_object_from_value (value),
array_index_string_p) != NULL)
{
ecma_string_t *new_array_index_string_p = ecma_new_ecma_string_from_uint32 (*length_p + array_index);
/* 5.b.iii.3.a */
ECMA_TRY_CATCH (get_value,
ecma_op_object_get (ecma_get_object_from_value (value),
array_index_string_p),
ret_value);
ecma_property_descriptor_t prop_desc = ecma_make_empty_property_descriptor ();
{
prop_desc.is_value_defined = true;
prop_desc.value = get_value;
prop_desc.is_writable_defined = true;
prop_desc.is_writable = true;
prop_desc.is_enumerable_defined = true;
prop_desc.is_enumerable = true;
prop_desc.is_configurable_defined = true;
prop_desc.is_configurable = true;
}
/* 5.b.iii.3.b */
/* This will always be a simple value since 'is_throw' is false, so no need to free. */
ecma_completion_value_t put_comp = ecma_op_object_define_own_property (obj_p,
new_array_index_string_p,
&prop_desc,
false);
JERRY_ASSERT (ecma_is_completion_value_normal_true (put_comp));
ECMA_FINALIZE (get_value);
ecma_deref_ecma_string (new_array_index_string_p);
}
ecma_deref_ecma_string (array_index_string_p);
}
*length_p += arg_len;
ECMA_OP_TO_NUMBER_FINALIZE (arg_len_number);
ECMA_FINALIZE (arg_len_value);
ecma_deref_ecma_string (magic_string_length_p);
}
else
{
ecma_string_t *new_array_index_string_p = ecma_new_ecma_string_from_uint32 ((*length_p)++);
ecma_property_descriptor_t prop_desc = ecma_make_empty_property_descriptor ();
{
prop_desc.is_value_defined = true;
prop_desc.value = value;
prop_desc.is_writable_defined = true;
prop_desc.is_writable = true;
prop_desc.is_enumerable_defined = true;
prop_desc.is_enumerable = true;
prop_desc.is_configurable_defined = true;
prop_desc.is_configurable = true;
}
/* 5.c.i */
/* This will always be a simple value since 'is_throw' is false, so no need to free. */
ecma_completion_value_t put_comp = ecma_op_object_define_own_property (obj_p,
new_array_index_string_p,
&prop_desc,
false);
JERRY_ASSERT (ecma_is_completion_value_normal_true (put_comp));
ecma_deref_ecma_string (new_array_index_string_p);
}
if (ecma_is_completion_value_empty (ret_value))
{
ret_value = ecma_make_simple_completion_value (ECMA_SIMPLE_VALUE_TRUE);
}
return ret_value;
} /* ecma_builtin_helper_array_concat_value */
/**
* [[Put]] ecma general object's operation
*
* See also:
* ECMA-262 v5, 8.6.2; ECMA-262 v5, Table 8
* ECMA-262 v5, 8.12.5
* Also incorporates [[CanPut]] ECMA-262 v5, 8.12.4
*
* @return ecma value
* The returned value must be freed with ecma_free_value.
*
* Returns with ECMA_SIMPLE_VALUE_TRUE if the operation is
* successful. Otherwise it returns with an error object
* or ECMA_SIMPLE_VALUE_FALSE.
*
* Note: even if is_throw is false, the setter can throw an
* error, and this function returns with that error.
*/
ecma_value_t
ecma_op_general_object_put (ecma_object_t *obj_p, /**< the object */
ecma_string_t *property_name_p, /**< property name */
ecma_value_t value, /**< ecma value */
bool is_throw) /**< flag that controls failure handling */
{
JERRY_ASSERT (obj_p != NULL
&& !ecma_is_lexical_environment (obj_p));
JERRY_ASSERT (property_name_p != NULL);
ecma_object_t *setter_p = NULL;
ecma_property_t *prop_p = ecma_op_object_get_own_property (obj_p, property_name_p);
if (prop_p != NULL)
{
if (ECMA_PROPERTY_GET_TYPE (prop_p) == ECMA_PROPERTY_TYPE_NAMEDDATA)
{
if (ecma_is_property_writable (prop_p))
{
const ecma_object_type_t type = ecma_get_object_type (obj_p);
if (type == ECMA_OBJECT_TYPE_ARGUMENTS
|| (type == ECMA_OBJECT_TYPE_ARRAY && ecma_op_general_object_property_name_is_length (property_name_p)))
{
/* These cases cannot be optimized. */
ecma_property_descriptor_t value_desc = ecma_make_empty_property_descriptor ();
value_desc.is_value_defined = true;
value_desc.value = value;
return ecma_op_object_define_own_property (obj_p,
property_name_p,
&value_desc,
is_throw);
}
/* There is no need for special casing arrays here because changing the
* value of an existing property never changes the length of an array. */
ecma_named_data_property_assign_value (obj_p, prop_p, value);
return ecma_make_simple_value (ECMA_SIMPLE_VALUE_TRUE);
}
}
else
{
JERRY_ASSERT (ECMA_PROPERTY_GET_TYPE (prop_p) == ECMA_PROPERTY_TYPE_NAMEDACCESSOR);
setter_p = ecma_get_named_accessor_property_setter (prop_p);
}
}
else
{
ecma_object_t *proto_p = ecma_get_object_prototype (obj_p);
bool create_new_property = true;
if (proto_p != NULL)
{
ecma_property_t *inherited_prop_p = ecma_op_object_get_property (proto_p, property_name_p);
if (inherited_prop_p != NULL)
{
if (ECMA_PROPERTY_GET_TYPE (inherited_prop_p) == ECMA_PROPERTY_TYPE_NAMEDACCESSOR)
{
setter_p = ecma_get_named_accessor_property_setter (inherited_prop_p);
create_new_property = false;
}
else
{
create_new_property = ecma_is_property_writable (inherited_prop_p);
}
}
}
if (create_new_property
&& ecma_get_object_extensible (obj_p))
{
const ecma_object_type_t type = ecma_get_object_type (obj_p);
if (type == ECMA_OBJECT_TYPE_ARGUMENTS)
{
return ecma_builtin_helper_def_prop (obj_p,
property_name_p,
value,
true, /* Writable */
true, /* Enumerable */
true, /* Configurable */
is_throw); /* Failure handling */
}
uint32_t index;
if (type == ECMA_OBJECT_TYPE_ARRAY
&& ecma_string_get_array_index (property_name_p, &index))
{
/* Since the length of an array is a non-configurable named data
* property, the prop_p must be a non-NULL pointer for all arrays. */
JERRY_ASSERT (!ecma_op_general_object_property_name_is_length (property_name_p));
ecma_string_t *magic_string_length_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH);
ecma_property_t *len_prop_p = ecma_op_object_get_own_property (obj_p, magic_string_length_p);
ecma_deref_ecma_string (magic_string_length_p);
JERRY_ASSERT (len_prop_p != NULL
&& ECMA_PROPERTY_GET_TYPE (len_prop_p) == ECMA_PROPERTY_TYPE_NAMEDDATA);
uint32_t old_len = ecma_get_uint32_from_value (ecma_get_named_data_property_value (len_prop_p));
if (index < UINT32_MAX
&& index >= old_len)
{
if (!ecma_is_property_writable (len_prop_p))
{
return ecma_reject (is_throw);
}
ecma_property_value_t *len_prop_value_p = ECMA_PROPERTY_VALUE_PTR (len_prop_p);
ecma_value_assign_uint32 (&len_prop_value_p->value, index + 1);
}
}
ecma_property_t *new_prop_p = ecma_create_named_data_property (obj_p,
property_name_p,
true, /* Writable */
true, /* Enumerable */
true); /* Configurable */
JERRY_ASSERT (ecma_is_value_undefined (ecma_get_named_data_property_value (new_prop_p)));
ecma_set_named_data_property_value (new_prop_p, ecma_copy_value_if_not_object (value));
return ecma_make_simple_value (ECMA_SIMPLE_VALUE_TRUE);
}
}
if (setter_p == NULL)
{
return ecma_reject (is_throw);
}
ecma_value_t ret_value = ecma_op_function_call (setter_p,
ecma_make_object_value (obj_p),
&value,
1);
if (!ecma_is_value_error (ret_value))
{
ecma_fast_free_value (ret_value);
ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_TRUE);
}
return ret_value;
} /* ecma_op_general_object_put */