/**
* Number object creation operation.
*
* See also: ECMA-262 v5, 15.7.2.1
*
* @return ecma value
* Returned value must be freed with ecma_free_value
*/
ecma_value_t
ecma_op_create_number_object (ecma_value_t arg) /**< argument passed to the Number constructor */
{
ecma_value_t conv_to_num_completion = ecma_op_to_number (arg);
if (ECMA_IS_VALUE_ERROR (conv_to_num_completion))
{
return conv_to_num_completion;
}
#ifndef CONFIG_DISABLE_NUMBER_BUILTIN
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_NUMBER_PROTOTYPE);
#else /* CONFIG_DISABLE_NUMBER_BUILTIN */
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_OBJECT_PROTOTYPE);
#endif /* !CONFIG_DISABLE_NUMBER_BUILTIN */
ecma_object_t *object_p = ecma_create_object (prototype_obj_p,
sizeof (ecma_extended_object_t),
ECMA_OBJECT_TYPE_CLASS);
ecma_deref_object (prototype_obj_p);
ecma_extended_object_t *ext_object_p = (ecma_extended_object_t *) object_p;
ext_object_p->u.class_prop.class_id = LIT_MAGIC_STRING_NUMBER_UL;
/* Pass reference (no need to free conv_to_num_completion). */
ext_object_p->u.class_prop.value = conv_to_num_completion;
return ecma_make_object_value (object_p);
} /* ecma_op_create_number_object */
/**
* Number object creation operation.
*
* See also: ECMA-262 v5, 15.7.2.1
*
* @return ecma value
* Returned value must be freed with ecma_free_value
*/
ecma_value_t
ecma_op_create_number_object (ecma_value_t arg) /**< argument passed to the Number constructor */
{
ecma_value_t conv_to_num_completion = ecma_op_to_number (arg);
if (ECMA_IS_VALUE_ERROR (conv_to_num_completion))
{
return conv_to_num_completion;
}
#ifndef CONFIG_DISABLE_NUMBER_BUILTIN
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_NUMBER_PROTOTYPE);
#else /* CONFIG_DISABLE_NUMBER_BUILTIN */
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_OBJECT_PROTOTYPE);
#endif /* !CONFIG_DISABLE_NUMBER_BUILTIN */
ecma_object_t *obj_p = ecma_create_object (prototype_obj_p,
false,
true,
ECMA_OBJECT_TYPE_GENERAL);
ecma_deref_object (prototype_obj_p);
ecma_property_t *class_prop_p = ecma_create_internal_property (obj_p, ECMA_INTERNAL_PROPERTY_CLASS);
ECMA_PROPERTY_VALUE_PTR (class_prop_p)->value = LIT_MAGIC_STRING_NUMBER_UL;
ecma_property_t *prim_value_prop_p = ecma_create_internal_property (obj_p,
ECMA_INTERNAL_PROPERTY_ECMA_VALUE);
/* Pass reference (no need to free conv_to_num_completion). */
ecma_set_internal_property_value (prim_value_prop_p, conv_to_num_completion);
return ecma_make_object_value (obj_p);
} /* ecma_op_create_number_object */
/**
* Boolean object creation operation.
*
* See also: ECMA-262 v5, 15.6.2.1
*
* @return ecma value
* Returned value must be freed with ecma_free_value
*/
ecma_value_t
ecma_op_create_boolean_object (ecma_value_t arg) /**< argument passed to the Boolean constructor */
{
bool boolean_value = ecma_op_to_boolean (arg);
#ifndef CONFIG_ECMA_COMPACT_PROFILE_DISABLE_BOOLEAN_BUILTIN
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_BOOLEAN_PROTOTYPE);
#else /* CONFIG_ECMA_COMPACT_PROFILE_DISABLE_BOOLEAN_BUILTIN */
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_OBJECT_PROTOTYPE);
#endif /* !CONFIG_ECMA_COMPACT_PROFILE_DISABLE_BOOLEAN_BUILTIN */
ecma_object_t *obj_p = ecma_create_object (prototype_obj_p, false, true, ECMA_OBJECT_TYPE_GENERAL);
ecma_deref_object (prototype_obj_p);
ecma_property_t *class_prop_p = ecma_create_internal_property (obj_p, ECMA_INTERNAL_PROPERTY_CLASS);
ECMA_PROPERTY_VALUE_PTR (class_prop_p)->value = LIT_MAGIC_STRING_BOOLEAN_UL;
ecma_property_t *prim_value_prop_p = ecma_create_internal_property (obj_p,
ECMA_INTERNAL_PROPERTY_ECMA_VALUE);
ecma_value_t prim_value = ecma_make_simple_value (boolean_value ? ECMA_SIMPLE_VALUE_TRUE
: ECMA_SIMPLE_VALUE_FALSE);
ecma_set_internal_property_value (prim_value_prop_p, prim_value);
return ecma_make_object_value (obj_p);
} /* ecma_op_create_boolean_object */
/**
* Number object creation operation.
*
* See also: ECMA-262 v5, 15.7.2.1
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value
*/
ecma_completion_value_t
ecma_op_create_number_object (ecma_value_t arg) /**< argument passed to the Number constructor */
{
ecma_completion_value_t conv_to_num_completion = ecma_op_to_number (arg);
if (!ecma_is_completion_value_normal (conv_to_num_completion))
{
return conv_to_num_completion;
}
ecma_number_t *prim_value_p = ecma_get_number_from_completion_value (conv_to_num_completion);
#ifndef CONFIG_ECMA_COMPACT_PROFILE_DISABLE_NUMBER_BUILTIN
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_NUMBER_PROTOTYPE);
#else /* !CONFIG_ECMA_COMPACT_PROFILE_DISABLE_NUMBER_BUILTIN */
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_OBJECT_PROTOTYPE);
#endif /* CONFIG_ECMA_COMPACT_PROFILE_DISABLE_NUMBER_BUILTIN */
ecma_object_t *obj_p = ecma_create_object (prototype_obj_p,
true,
ECMA_OBJECT_TYPE_GENERAL);
ecma_deref_object (prototype_obj_p);
ecma_property_t *class_prop_p = ecma_create_internal_property (obj_p, ECMA_INTERNAL_PROPERTY_CLASS);
class_prop_p->u.internal_property.value = LIT_MAGIC_STRING_NUMBER_UL;
ecma_property_t *prim_value_prop_p = ecma_create_internal_property (obj_p,
ECMA_INTERNAL_PROPERTY_PRIMITIVE_NUMBER_VALUE);
ECMA_SET_POINTER (prim_value_prop_p->u.internal_property.value, prim_value_p);
return ecma_make_normal_completion_value (ecma_make_object_value (obj_p));
} /* ecma_op_create_number_object */
/**
* CreateIterResultObject operation
*
* See also:
* ECMA-262 v6, 7.4.7.
*
* Note:
* Returned value must be freed with ecma_free_value.
*
* @return iterator result object
*/
ecma_value_t
ecma_create_iter_result_object (ecma_value_t value, /**< value */
ecma_value_t done) /**< ECMA_VALUE_{TRUE,FALSE} based
* on the iterator index */
{
/* 1. */
JERRY_ASSERT (ecma_is_value_boolean (done));
/* 2. */
ecma_object_t *object_p = ecma_create_object (ecma_builtin_get (ECMA_BUILTIN_ID_OBJECT_PROTOTYPE),
0,
ECMA_OBJECT_TYPE_GENERAL);
/* 3. */
ecma_property_value_t *prop_value_p;
prop_value_p = ecma_create_named_data_property (object_p,
ecma_get_magic_string (LIT_MAGIC_STRING_VALUE),
ECMA_PROPERTY_CONFIGURABLE_ENUMERABLE_WRITABLE,
NULL);
prop_value_p->value = ecma_copy_value_if_not_object (value);
/* 4. */
prop_value_p = ecma_create_named_data_property (object_p,
ecma_get_magic_string (LIT_MAGIC_STRING_DONE),
ECMA_PROPERTY_CONFIGURABLE_ENUMERABLE_WRITABLE,
NULL);
prop_value_p->value = done;
/* 5. */
return ecma_make_object_value (object_p);
} /* ecma_create_iter_result_object */
/**
* External function object creation operation.
*
* Note:
* external function object is implementation-defined object type
* that represent functions implemented in native code, using Embedding API
*
* @return pointer to newly created external function object
*/
ecma_object_t *
ecma_op_create_external_function_object (ecma_external_pointer_t code_p) /**< pointer to external native handler */
{
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_FUNCTION_PROTOTYPE);
ecma_object_t *function_obj_p;
function_obj_p = ecma_create_object (prototype_obj_p,
sizeof (ecma_extended_object_t),
ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION);
ecma_deref_object (prototype_obj_p);
/*
* [[Class]] property is not stored explicitly for objects of ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION type.
*
* See also: ecma_object_get_class_name
*/
ecma_extended_object_t *ext_func_obj_p = (ecma_extended_object_t *) function_obj_p;
ext_func_obj_p->u.external_function = code_p;
ecma_string_t *magic_string_prototype_p = ecma_get_magic_string (LIT_MAGIC_STRING_PROTOTYPE);
ecma_builtin_helper_def_prop (function_obj_p,
magic_string_prototype_p,
ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED),
true, /* Writable */
false, /* Enumerable */
false, /* Configurable */
false); /* Failure handling */
ecma_deref_ecma_string (magic_string_prototype_p);
return function_obj_p;
} /* ecma_op_create_external_function_object */
/**
* The %TypedArray%.from routine
*
* See also:
* ES2015 22.2.2.1
*
* @return ecma value
* Returned value must be freed with ecma_free_value.
*/
static ecma_value_t
ecma_builtin_typedarray_from (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 */
{
JERRY_ASSERT (arguments_list_len == 0 || arguments_list_p != NULL);
if (!ecma_is_constructor (this_arg))
{
return ecma_raise_type_error (ECMA_ERR_MSG ("'this' is not a constructor."));
}
ecma_value_t source;
ecma_value_t map_fn = ECMA_VALUE_UNDEFINED;
ecma_value_t this_in_fn = ECMA_VALUE_UNDEFINED;
if (arguments_list_len == 0)
{
return ecma_raise_type_error (ECMA_ERR_MSG ("no source argument"));
}
source = arguments_list_p[0];
if (arguments_list_len > 1)
{
map_fn = arguments_list_p[1];
if (!ecma_op_is_callable (map_fn))
{
return ecma_raise_type_error (ECMA_ERR_MSG ("mapfn argument is not callable"));
}
if (arguments_list_len > 2)
{
this_in_fn = arguments_list_p[2];
}
}
ecma_object_t *obj_p = ecma_get_object_from_value (this_arg);
const uint8_t builtin_id = ecma_get_object_builtin_id (obj_p);
if (!ecma_typedarray_helper_is_typedarray (builtin_id))
{
return ecma_raise_type_error (ECMA_ERR_MSG ("'this' is not a typedarray constructor"));
}
ecma_object_t *proto_p = ecma_builtin_get (ecma_typedarray_helper_get_prototype_id (builtin_id));
const uint8_t element_size_shift = ecma_typedarray_helper_get_shift_size (builtin_id);
const lit_magic_string_id_t class_id = ecma_typedarray_helper_get_magic_string (builtin_id);
return ecma_op_typedarray_from (source,
map_fn,
this_in_fn,
proto_p,
element_size_shift,
class_id);
} /* ecma_builtin_typedarray_from */
/**
* Run global code
*/
jerry_completion_code_t
vm_run_global (void)
{
JERRY_ASSERT (__program != NULL);
JERRY_ASSERT (vm_top_context_p == NULL);
#ifdef MEM_STATS
interp_mem_stats_print_legend ();
#endif /* MEM_STATS */
bool is_strict = false;
opcode_counter_t start_pos = 0;
opcode_scope_code_flags_t scope_flags = vm_get_scope_flags (start_pos++);
if (scope_flags & OPCODE_SCOPE_CODE_FLAGS_STRICT)
{
is_strict = true;
}
ecma_object_t *glob_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_GLOBAL);
ecma_object_t *lex_env_p = ecma_get_global_environment ();
ecma_completion_value_t completion = vm_run_from_pos (start_pos,
ecma_make_object_value (glob_obj_p),
lex_env_p,
is_strict,
false);
jerry_completion_code_t ret_code;
if (ecma_is_completion_value_exit (completion))
{
if (ecma_is_value_true (ecma_get_completion_value_value (completion)))
{
ret_code = JERRY_COMPLETION_CODE_OK;
}
else
{
ret_code = JERRY_COMPLETION_CODE_FAILED_ASSERTION_IN_SCRIPT;
}
}
else
{
JERRY_ASSERT (ecma_is_completion_value_throw (completion));
ret_code = JERRY_COMPLETION_CODE_UNHANDLED_EXCEPTION;
}
ecma_free_completion_value (completion);
ecma_deref_object (glob_obj_p);
ecma_deref_object (lex_env_p);
JERRY_ASSERT (vm_top_context_p == NULL);
return ret_code;
} /* vm_run_global */
/**
* Initialize Global environment
*/
void
ecma_init_global_lex_env (void)
{
ecma_object_t *glob_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_GLOBAL);
JERRY_CONTEXT (ecma_global_lex_env_p) = ecma_create_object_lex_env (NULL,
glob_obj_p,
ECMA_LEXICAL_ENVIRONMENT_THIS_OBJECT_BOUND);
} /* ecma_init_global_lex_env */
/**
* Run specified eval-mode bytecode
*
* @return completion value
*/
ecma_completion_value_t
vm_run_eval (const bytecode_data_header_t *bytecode_data_p, /**< byte-code data header */
bool is_direct) /**< is eval called in direct mode? */
{
vm_instr_counter_t first_instr_index = 0u;
opcode_scope_code_flags_t scope_flags = vm_get_scope_flags (bytecode_data_p, first_instr_index++);
bool is_strict = ((scope_flags & OPCODE_SCOPE_CODE_FLAGS_STRICT) != 0);
ecma_value_t this_binding;
ecma_object_t *lex_env_p;
/* ECMA-262 v5, 10.4.2 */
if (is_direct)
{
this_binding = vm_get_this_binding ();
lex_env_p = vm_get_lex_env ();
}
else
{
this_binding = ecma_make_object_value (ecma_builtin_get (ECMA_BUILTIN_ID_GLOBAL));
lex_env_p = ecma_get_global_environment ();
}
if (is_strict)
{
ecma_object_t *strict_lex_env_p = ecma_create_decl_lex_env (lex_env_p);
ecma_deref_object (lex_env_p);
lex_env_p = strict_lex_env_p;
}
ecma_completion_value_t completion = vm_run_from_pos (bytecode_data_p,
first_instr_index,
this_binding,
lex_env_p,
is_strict,
true,
NULL);
if (ecma_is_completion_value_return (completion))
{
completion = ecma_make_normal_completion_value (ecma_get_completion_value_value (completion));
}
else
{
JERRY_ASSERT (ecma_is_completion_value_throw (completion));
}
ecma_deref_object (lex_env_p);
ecma_free_value (this_binding, true);
return completion;
} /* vm_run_eval */
/**
* 'Object' object creation operation with no arguments.
*
* See also: ECMA-262 v5, 15.2.2.1
*
* @return pointer to newly created 'Object' object
*/
ecma_object_t*
ecma_op_create_object_object_noarg (void)
{
ecma_object_t *object_prototype_p = ecma_builtin_get (ECMA_BUILTIN_ID_OBJECT_PROTOTYPE);
// 3., 4., 6., 7.
ecma_object_t *obj_p = ecma_op_create_object_object_noarg_and_set_prototype (object_prototype_p);
ecma_deref_object (object_prototype_p);
return obj_p;
} /* ecma_op_create_object_object_noarg */
/**
* String object creation operation.
*
* See also: ECMA-262 v5, 15.5.2.1
*
* @return ecma value
* Returned value must be freed with ecma_free_value
*/
ecma_value_t
ecma_op_create_string_object (const ecma_value_t *arguments_list_p, /**< list of arguments that
are passed to String constructor */
ecma_length_t arguments_list_len) /**< length of the arguments' list */
{
JERRY_ASSERT (arguments_list_len == 0
|| arguments_list_p != NULL);
ecma_value_t prim_value = ecma_make_magic_string_value (LIT_MAGIC_STRING__EMPTY);
if (arguments_list_len > 0)
{
prim_value = ecma_op_to_string (arguments_list_p[0]);
if (ECMA_IS_VALUE_ERROR (prim_value))
{
return prim_value;
}
JERRY_ASSERT (ecma_is_value_string (prim_value));
}
#ifndef CONFIG_DISABLE_STRING_BUILTIN
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_STRING_PROTOTYPE);
#else /* CONFIG_DISABLE_STRING_BUILTIN */
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_OBJECT_PROTOTYPE);
#endif /* !CONFIG_DISABLE_STRING_BUILTIN */
ecma_object_t *object_p = ecma_create_object (prototype_obj_p,
sizeof (ecma_extended_object_t),
ECMA_OBJECT_TYPE_CLASS);
ecma_deref_object (prototype_obj_p);
ecma_extended_object_t *ext_object_p = (ecma_extended_object_t *) object_p;
ext_object_p->u.class_prop.class_id = LIT_MAGIC_STRING_STRING_UL;
ext_object_p->u.class_prop.u.value = prim_value;
return ecma_make_object_value (object_p);
} /* ecma_op_create_string_object */
/**
* Initialize Global environment
*/
void
ecma_init_environment (void)
{
#ifdef CONFIG_ECMA_GLOBAL_ENVIRONMENT_DECLARATIVE
ecma_global_lex_env_p = ecma_create_decl_lex_env (NULL);
#else /* !CONFIG_ECMA_GLOBAL_ENVIRONMENT_DECLARATIVE */
ecma_object_t *glob_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_GLOBAL);
ecma_global_lex_env_p = ecma_create_object_lex_env (NULL, glob_obj_p, false);
ecma_deref_object (glob_obj_p);
#endif /* !CONFIG_ECMA_GLOBAL_ENVIRONMENT_DECLARATIVE */
} /* ecma_init_environment */
/**
* RegExp object creation operation.
*
* See also: ECMA-262 v5, 15.10.4.1
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value
*/
ecma_completion_value_t
ecma_op_create_regexp_object (ecma_string_t *pattern_p, /**< input pattern */
ecma_string_t *flags_str_p) /**< flags */
{
JERRY_ASSERT (pattern_p != NULL);
ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();
uint8_t flags = 0;
if (flags_str_p != NULL)
{
ECMA_TRY_CATCH (empty, re_parse_regexp_flags (flags_str_p, &flags), ret_value);
ECMA_FINALIZE (empty);
if (!ecma_is_completion_value_empty (ret_value))
{
return ret_value;
}
}
ecma_object_t *re_prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_REGEXP_PROTOTYPE);
ecma_object_t *obj_p = ecma_create_object (re_prototype_obj_p, true, ECMA_OBJECT_TYPE_GENERAL);
ecma_deref_object (re_prototype_obj_p);
/* Set the internal [[Class]] property */
ecma_property_t *class_prop_p = ecma_create_internal_property (obj_p, ECMA_INTERNAL_PROPERTY_CLASS);
class_prop_p->u.internal_property.value = LIT_MAGIC_STRING_REGEXP_UL;
re_initialize_props (obj_p, pattern_p, flags);
/* Set bytecode internal property. */
ecma_property_t *bytecode_prop_p;
bytecode_prop_p = ecma_create_internal_property (obj_p, ECMA_INTERNAL_PROPERTY_REGEXP_BYTECODE);
/* Compile bytecode. */
re_bytecode_t *bc_p = NULL;
ECMA_TRY_CATCH (empty, re_compile_bytecode (&bc_p, pattern_p, flags), ret_value);
ECMA_SET_POINTER (bytecode_prop_p->u.internal_property.value, bc_p);
ret_value = ecma_make_normal_completion_value (ecma_make_object_value (obj_p));
ECMA_FINALIZE (empty);
if (ecma_is_completion_value_throw (ret_value))
{
ecma_deref_object (obj_p);
}
return ret_value;
} /* ecma_op_create_regexp_object */
/**
* Boolean object creation operation.
*
* See also: ECMA-262 v5, 15.6.2.1
*
* @return ecma value
* Returned value must be freed with ecma_free_value
*/
ecma_value_t
ecma_op_create_boolean_object (ecma_value_t arg) /**< argument passed to the Boolean constructor */
{
bool boolean_value = ecma_op_to_boolean (arg);
#ifndef CONFIG_DISABLE_BOOLEAN_BUILTIN
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_BOOLEAN_PROTOTYPE);
#else /* CONFIG_DISABLE_BOOLEAN_BUILTIN */
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_OBJECT_PROTOTYPE);
#endif /* !CONFIG_DISABLE_BOOLEAN_BUILTIN */
ecma_object_t *object_p = ecma_create_object (prototype_obj_p,
sizeof (ecma_extended_object_t),
ECMA_OBJECT_TYPE_CLASS);
ecma_deref_object (prototype_obj_p);
ecma_extended_object_t *ext_object_p = (ecma_extended_object_t *) object_p;
ext_object_p->u.class_prop.class_id = LIT_MAGIC_STRING_BOOLEAN_UL;
ext_object_p->u.class_prop.value = ecma_make_boolean_value (boolean_value);
return ecma_make_object_value (object_p);
} /* ecma_op_create_boolean_object */
/**
* Handle calling [[Construct]] of Uint16Array
*
* @return ecma value
*/
ecma_value_t
ecma_builtin_uint16array_dispatch_construct (const ecma_value_t *arguments_list_p, /**< arguments list */
ecma_length_t arguments_list_len) /**< number of arguments */
{
JERRY_ASSERT (arguments_list_len == 0 || arguments_list_p != NULL);
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_UINT16ARRAY_PROTOTYPE);
ecma_value_t val = ecma_op_create_typedarray (arguments_list_p,
arguments_list_len,
prototype_obj_p,
1,
LIT_MAGIC_STRING_UINT16_ARRAY_UL);
ecma_deref_object (prototype_obj_p);
return val;
} /* ecma_builtin_uint16array_dispatch_construct */
/**
* Construct a Function object for specified built-in routine
*
* See also: ECMA-262 v5, 15
*
* @return pointer to constructed Function object
*/
ecma_object_t*
ecma_builtin_make_function_object_for_routine (ecma_builtin_id_t builtin_id, /**< identifier of built-in object
that initially contains property
with the routine */
uint16_t routine_id, /**< builtin-wide identifier of the built-in
object's routine property */
ecma_number_t length_prop_num_value) /**< ecma-number - value
of 'length' property
of function object to create */
{
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_FUNCTION_PROTOTYPE);
ecma_object_t *func_obj_p = ecma_create_object (prototype_obj_p, true, ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION);
ecma_deref_object (prototype_obj_p);
ecma_set_object_is_builtin (func_obj_p, true);
uint64_t packed_value = jrt_set_bit_field_value (0,
builtin_id,
ECMA_BUILTIN_ROUTINE_ID_BUILT_IN_OBJECT_ID_POS,
ECMA_BUILTIN_ROUTINE_ID_BUILT_IN_OBJECT_ID_WIDTH);
packed_value = jrt_set_bit_field_value (packed_value,
routine_id,
ECMA_BUILTIN_ROUTINE_ID_BUILT_IN_ROUTINE_ID_POS,
ECMA_BUILTIN_ROUTINE_ID_BUILT_IN_ROUTINE_ID_WIDTH);
ecma_property_t *routine_id_prop_p = ecma_create_internal_property (func_obj_p,
ECMA_INTERNAL_PROPERTY_BUILT_IN_ROUTINE_ID);
JERRY_ASSERT ((uint32_t) packed_value == packed_value);
routine_id_prop_p->u.internal_property.value = (uint32_t) packed_value;
ecma_string_t* magic_string_length_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH);
ecma_property_t *len_prop_p = ecma_create_named_data_property (func_obj_p,
magic_string_length_p,
false, false, false);
ecma_deref_ecma_string (magic_string_length_p);
ecma_number_t* len_p = ecma_alloc_number ();
*len_p = length_prop_num_value;
ecma_set_named_data_property_value (len_prop_p, ecma_make_number_value (len_p));
return func_obj_p;
} /* ecma_builtin_make_function_object_for_routine */
/**
* Function object creation operation.
*
* See also: ECMA-262 v5, 13.2
*
* @return pointer to newly created Function object
*/
ecma_object_t *
ecma_op_create_function_object (ecma_object_t *scope_p, /**< function's scope */
const ecma_compiled_code_t *bytecode_data_p) /**< byte-code array */
{
/* 1., 4., 13. */
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_FUNCTION_PROTOTYPE);
ecma_object_t *func_p = ecma_create_object (prototype_obj_p,
sizeof (ecma_extended_object_t),
ECMA_OBJECT_TYPE_FUNCTION);
ecma_deref_object (prototype_obj_p);
/* 2., 6., 7., 8. */
/*
* We don't setup [[Get]], [[Call]], [[Construct]], [[HasInstance]] for each function object.
* Instead we set the object's type to ECMA_OBJECT_TYPE_FUNCTION
* that defines which version of the routine should be used on demand.
*/
/* 3. */
/*
* [[Class]] property is not stored explicitly for objects of ECMA_OBJECT_TYPE_FUNCTION type.
*
* See also: ecma_object_get_class_name
*/
ecma_extended_object_t *ext_func_p = (ecma_extended_object_t *) func_p;
/* 9. */
ECMA_SET_INTERNAL_VALUE_POINTER (ext_func_p->u.function.scope_cp, scope_p);
/* 10., 11., 12. */
ECMA_SET_INTERNAL_VALUE_POINTER (ext_func_p->u.function.bytecode_cp, bytecode_data_p);
ecma_bytecode_ref ((ecma_compiled_code_t *) bytecode_data_p);
/* 14., 15., 16., 17., 18. */
/*
* 'length' and 'prototype' properties are instantiated lazily
*
* See also: ecma_op_function_try_to_lazy_instantiate_property
*/
return func_p;
} /* ecma_op_create_function_object */
/**
* PutValue operation part (lexical environment base or unresolvable reference).
*
* See also: ECMA-262 v5, 8.7.2, sections 3 and 5
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value.
*/
ecma_completion_value_t
ecma_op_put_value_lex_env_base (ecma_object_t *ref_base_lex_env_p, /**< reference's base (lexical environment) */
ecma_string_t *var_name_string_p, /**< variable name */
bool is_strict, /**< flag indicating strict mode */
ecma_value_t value) /**< ECMA-value */
{
const bool is_unresolvable_reference = (ref_base_lex_env_p == NULL);
// 3.
if (unlikely (is_unresolvable_reference))
{
// 3.a.
if (is_strict)
{
return ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_REFERENCE));
}
else
{
// 3.b.
ecma_object_t *global_object_p = ecma_builtin_get (ECMA_BUILTIN_ID_GLOBAL);
ecma_completion_value_t completion = ecma_op_object_put (global_object_p,
var_name_string_p,
value,
false);
ecma_deref_object (global_object_p);
JERRY_ASSERT (ecma_is_completion_value_normal_true (completion)
|| ecma_is_completion_value_normal_false (completion));
return ecma_make_empty_completion_value ();
}
}
// 5.
JERRY_ASSERT (ref_base_lex_env_p != NULL
&& ecma_is_lexical_environment (ref_base_lex_env_p));
// 5.a
return ecma_op_set_mutable_binding (ref_base_lex_env_p,
var_name_string_p,
value,
is_strict);
} /* ecma_op_put_value_lex_env_base */
/**
* Helper function: create arraybuffer object based on the array length
*
* The struct of arraybuffer object:
* ecma_object_t
* extend_part
* data buffer
*
* @return ecma_object_t *
*/
ecma_object_t *
ecma_arraybuffer_new_object (ecma_length_t length) /**< length of the arraybuffer */
{
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_ARRAYBUFFER_PROTOTYPE);
ecma_object_t *object_p = ecma_create_object (prototype_obj_p,
sizeof (ecma_extended_object_t) + length,
ECMA_OBJECT_TYPE_CLASS);
ecma_deref_object (prototype_obj_p);
ecma_extended_object_t *ext_object_p = (ecma_extended_object_t *) object_p;
ext_object_p->u.class_prop.extra_info = ECMA_ARRAYBUFFER_INTERNAL_MEMORY;
ext_object_p->u.class_prop.class_id = LIT_MAGIC_STRING_ARRAY_BUFFER_UL;
ext_object_p->u.class_prop.u.length = length;
lit_utf8_byte_t *buf = (lit_utf8_byte_t *) (ext_object_p + 1);
memset (buf, 0, length);
return object_p;
} /* ecma_arraybuffer_new_object */
/**
* PutValue operation part (lexical environment base or unresolvable reference).
*
* See also: ECMA-262 v5, 8.7.2, sections 3 and 5
*
* @return ecma value
* Returned value must be freed with ecma_free_value.
*/
ecma_value_t
ecma_op_put_value_lex_env_base (ecma_object_t *ref_base_lex_env_p, /**< reference's base (lexical environment) */
ecma_string_t *var_name_string_p, /**< variable name */
bool is_strict, /**< flag indicating strict mode */
ecma_value_t value) /**< ECMA-value */
{
const bool is_unresolvable_reference = (ref_base_lex_env_p == NULL);
// 3.
if (unlikely (is_unresolvable_reference))
{
// 3.a.
if (is_strict)
{
return ecma_raise_reference_error ("");
}
else
{
// 3.b.
ecma_object_t *global_object_p = ecma_builtin_get (ECMA_BUILTIN_ID_GLOBAL);
ecma_value_t completion = ecma_op_object_put (global_object_p,
var_name_string_p,
value,
false);
ecma_deref_object (global_object_p);
JERRY_ASSERT (ecma_is_value_boolean (completion));
return ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
}
}
// 5.
JERRY_ASSERT (ref_base_lex_env_p != NULL
&& ecma_is_lexical_environment (ref_base_lex_env_p));
// 5.a
return ecma_op_set_mutable_binding (ref_base_lex_env_p,
var_name_string_p,
value,
is_strict);
} /* ecma_op_put_value_lex_env_base */
/**
* External function object creation operation.
*
* Note:
* external function object is implementation-defined object type
* that represent functions implemented in native code, using Embedding API
*
* @return pointer to newly created external function object
*/
ecma_object_t*
ecma_op_create_external_function_object (ecma_external_pointer_t code_p) /**< pointer to external native handler */
{
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_FUNCTION_PROTOTYPE);
ecma_object_t *function_obj_p = ecma_create_object (prototype_obj_p, true, ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION);
ecma_deref_object (prototype_obj_p);
/*
* [[Class]] property is not stored explicitly for objects of ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION type.
*
* See also: ecma_object_get_class_name
*/
bool is_created = ecma_create_external_pointer_property (function_obj_p,
ECMA_INTERNAL_PROPERTY_NATIVE_CODE,
(ecma_external_pointer_t) code_p);
JERRY_ASSERT (is_created);
ecma_property_descriptor_t prop_desc = ecma_make_empty_property_descriptor ();
{
prop_desc.is_value_defined = true;
prop_desc.value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED);
prop_desc.is_writable_defined = true;
prop_desc.is_writable = true;
prop_desc.is_enumerable_defined = true;
prop_desc.is_enumerable = false;
prop_desc.is_configurable_defined = true;
prop_desc.is_configurable = false;
}
ecma_string_t *magic_string_prototype_p = ecma_get_magic_string (LIT_MAGIC_STRING_PROTOTYPE);
ecma_op_object_define_own_property (function_obj_p,
magic_string_prototype_p,
&prop_desc,
false);
ecma_deref_ecma_string (magic_string_prototype_p);
return function_obj_p;
} /* ecma_op_create_external_function_object */
/**
* Helper function: create arraybuffer object with external buffer backing.
*
* The struct of external arraybuffer object:
* ecma_object_t
* extend_part
* arraybuffer external info part
*
* @return ecma_object_t *, pointer to the created ArrayBuffer object
*/
ecma_object_t *
ecma_arraybuffer_new_object_external (ecma_length_t length, /**< length of the buffer_p to use */
void *buffer_p, /**< pointer for ArrayBuffer's buffer backing */
ecma_object_native_free_callback_t free_cb) /**< buffer free callback */
{
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_ARRAYBUFFER_PROTOTYPE);
ecma_object_t *object_p = ecma_create_object (prototype_obj_p,
sizeof (ecma_arraybuffer_external_info),
ECMA_OBJECT_TYPE_CLASS);
ecma_deref_object (prototype_obj_p);
ecma_arraybuffer_external_info *array_object_p = (ecma_arraybuffer_external_info *) object_p;
array_object_p->extended_object.u.class_prop.extra_info = ECMA_ARRAYBUFFER_EXTERNAL_MEMORY;
array_object_p->extended_object.u.class_prop.class_id = LIT_MAGIC_STRING_ARRAY_BUFFER_UL;
array_object_p->extended_object.u.class_prop.u.length = length;
array_object_p->buffer_p = buffer_p;
array_object_p->free_cb = free_cb;
return object_p;
} /* ecma_arraybuffer_new_object_external */
/**
* Construct a Function object for specified built-in routine
*
* See also: ECMA-262 v5, 15
*
* @return pointer to constructed Function object
*/
ecma_object_t *
ecma_builtin_make_function_object_for_routine (ecma_builtin_id_t builtin_id, /**< identifier of built-in object
that initially contains property
with the routine */
uint16_t routine_id, /**< builtin-wide identifier of the built-in
object's routine property */
uint8_t length_prop_value) /**< value of 'length' property
of function object to create */
{
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_FUNCTION_PROTOTYPE);
ecma_object_t *func_obj_p = ecma_create_object (prototype_obj_p, true, ECMA_OBJECT_TYPE_BUILT_IN_FUNCTION);
ecma_deref_object (prototype_obj_p);
ecma_set_object_is_builtin (func_obj_p, true);
uint64_t packed_value = jrt_set_bit_field_value (0,
builtin_id,
ECMA_BUILTIN_ROUTINE_ID_BUILT_IN_OBJECT_ID_POS,
ECMA_BUILTIN_ROUTINE_ID_BUILT_IN_OBJECT_ID_WIDTH);
packed_value = jrt_set_bit_field_value (packed_value,
routine_id,
ECMA_BUILTIN_ROUTINE_ID_BUILT_IN_ROUTINE_ID_POS,
ECMA_BUILTIN_ROUTINE_ID_BUILT_IN_ROUTINE_ID_WIDTH);
packed_value = jrt_set_bit_field_value (packed_value,
length_prop_value,
ECMA_BUILTIN_ROUTINE_ID_LENGTH_VALUE_POS,
ECMA_BUILTIN_ROUTINE_ID_LENGTH_VALUE_WIDTH);
ecma_property_t *routine_desc_prop_p = ecma_create_internal_property (func_obj_p,
ECMA_INTERNAL_PROPERTY_BUILT_IN_ROUTINE_DESC);
JERRY_ASSERT ((uint32_t) packed_value == packed_value);
routine_desc_prop_p->u.internal_property.value = (uint32_t) packed_value;
return func_obj_p;
} /* ecma_builtin_make_function_object_for_routine */
/**
* External function object creation operation.
*
* Note:
* external function object is implementation-defined object type
* that represent functions implemented in native code, using Embedding API
*
* @return pointer to newly created external function object
*/
ecma_object_t *
ecma_op_create_external_function_object (ecma_external_handler_t handler_cb) /**< pointer to external native handler */
{
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_FUNCTION_PROTOTYPE);
ecma_object_t *function_obj_p;
function_obj_p = ecma_create_object (prototype_obj_p,
sizeof (ecma_extended_object_t),
ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION);
ecma_deref_object (prototype_obj_p);
/*
* [[Class]] property is not stored explicitly for objects of ECMA_OBJECT_TYPE_EXTERNAL_FUNCTION type.
*
* See also: ecma_object_get_class_name
*/
ecma_extended_object_t *ext_func_obj_p = (ecma_extended_object_t *) function_obj_p;
ext_func_obj_p->u.external_handler_cb = handler_cb;
return function_obj_p;
} /* ecma_op_create_external_function_object */
/**
* Construct a Function object for specified built-in routine
*
* See also: ECMA-262 v5, 15
*
* @return pointer to constructed Function object
*/
static ecma_object_t *
ecma_builtin_make_function_object_for_routine (ecma_builtin_id_t builtin_id, /**< identifier of built-in object */
uint16_t routine_id, /**< builtin-wide identifier of the built-in
* object's routine property */
uint8_t length_prop_value) /**< value of 'length' property */
{
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_FUNCTION_PROTOTYPE);
ecma_object_t *func_obj_p = ecma_create_object (prototype_obj_p, true, true, ECMA_OBJECT_TYPE_FUNCTION);
ecma_deref_object (prototype_obj_p);
ecma_set_object_is_builtin (func_obj_p);
JERRY_ASSERT (routine_id >= ECMA_BUILTIN_ID__COUNT);
ecma_extended_object_t *ext_func_obj_p = (ecma_extended_object_t *) func_obj_p;
ext_func_obj_p->u.built_in.id = builtin_id;
ext_func_obj_p->u.built_in.length = length_prop_value;
ext_func_obj_p->u.built_in.routine_id = routine_id;
ext_func_obj_p->u.built_in.instantiated_bitset = 0;
return func_obj_p;
} /* ecma_builtin_make_function_object_for_routine */
/**
* Handle calling [[Construct]] of built-in Date object
*
* See also:
* ECMA-262 v5, 15.9.3.1
*
* @return completion-value
*/
ecma_completion_value_t
ecma_builtin_date_dispatch_construct (const ecma_value_t *arguments_list_p, /**< arguments list */
ecma_length_t arguments_list_len) /**< number of arguments */
{
ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();
ecma_number_t *prim_value_num_p = NULL;
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_DATE_PROTOTYPE);
ecma_object_t *obj_p = ecma_create_object (prototype_obj_p,
true,
ECMA_OBJECT_TYPE_GENERAL);
ecma_deref_object (prototype_obj_p);
if (arguments_list_len == 0)
{
ECMA_TRY_CATCH (parse_res_value,
ecma_builtin_date_now (ecma_make_object_value (obj_p)),
ret_value);
prim_value_num_p = ecma_alloc_number ();
*prim_value_num_p = *ecma_get_number_from_value (parse_res_value);
ECMA_FINALIZE (parse_res_value)
}
/**
* Handle calling [[Construct]] of built-in Date object
*
* See also:
* ECMA-262 v5, 15.9.3.1
*
* @return ecma value
*/
ecma_value_t
ecma_builtin_date_dispatch_construct (const ecma_value_t *arguments_list_p, /**< arguments list */
ecma_length_t arguments_list_len) /**< number of arguments */
{
ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
ecma_number_t prim_value_num = ECMA_NUMBER_ZERO;
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_DATE_PROTOTYPE);
ecma_object_t *obj_p = ecma_create_object (prototype_obj_p,
false,
true,
ECMA_OBJECT_TYPE_GENERAL);
ecma_deref_object (prototype_obj_p);
if (arguments_list_len == 0)
{
ECMA_TRY_CATCH (parse_res_value,
ecma_builtin_date_now (ecma_make_object_value (obj_p)),
ret_value);
prim_value_num = ecma_get_number_from_value (parse_res_value);
ECMA_FINALIZE (parse_res_value)
}
/**
* Array object creation operation.
*
* See also: ECMA-262 v5, 15.4.2.1
* ECMA-262 v5, 15.4.2.2
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value
*/
ecma_completion_value_t
ecma_op_create_array_object (const ecma_value_t *arguments_list_p, /**< list of arguments that
are passed to Array constructor */
ecma_length_t arguments_list_len, /**< length of the arguments' list */
bool is_treat_single_arg_as_length) /**< if the value is true,
arguments_list_len is 1
and single argument is Number,
then treat the single argument
as new Array's length rather
than as single item of the Array */
{
JERRY_ASSERT (arguments_list_len == 0
|| arguments_list_p != NULL);
uint32_t length;
const ecma_value_t *array_items_p;
ecma_length_t array_items_count;
if (is_treat_single_arg_as_length
&& arguments_list_len == 1
&& ecma_is_value_number (arguments_list_p[0]))
{
ecma_number_t *num_p = ecma_get_number_from_value (arguments_list_p[0]);
uint32_t num_uint32 = ecma_number_to_uint32 (*num_p);
if (*num_p != ecma_uint32_to_number (num_uint32))
{
return ecma_make_throw_obj_completion_value (ecma_new_standard_error (ECMA_ERROR_RANGE));
}
else
{
length = num_uint32;
array_items_p = NULL;
array_items_count = 0;
}
}
else
{
length = arguments_list_len;
array_items_p = arguments_list_p;
array_items_count = arguments_list_len;
}
#ifndef CONFIG_ECMA_COMPACT_PROFILE_DISABLE_ARRAY_BUILTIN
ecma_object_t *array_prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_ARRAY_PROTOTYPE);
#else /* !CONFIG_ECMA_COMPACT_PROFILE_DISABLE_ARRAY_BUILTIN */
ecma_object_t *array_prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_OBJECT_PROTOTYPE);
#endif /* CONFIG_ECMA_COMPACT_PROFILE_DISABLE_ARRAY_BUILTIN */
ecma_object_t *obj_p = ecma_create_object (array_prototype_obj_p, true, ECMA_OBJECT_TYPE_ARRAY);
ecma_deref_object (array_prototype_obj_p);
/*
* [[Class]] property is not stored explicitly for objects of ECMA_OBJECT_TYPE_ARRAY type.
*
* See also: ecma_object_get_class_name
*/
ecma_string_t *length_magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH);
ecma_number_t *length_num_p = ecma_alloc_number ();
*length_num_p = ecma_uint32_to_number (length);
ecma_property_t *length_prop_p = ecma_create_named_data_property (obj_p,
length_magic_string_p,
true, false, false);
ecma_set_named_data_property_value (length_prop_p, ecma_make_number_value (length_num_p));
ecma_deref_ecma_string (length_magic_string_p);
for (uint32_t index = 0;
index < array_items_count;
index++)
{
if (ecma_is_value_array_hole (array_items_p[index]))
{
continue;
}
ecma_string_t *item_name_string_p = ecma_new_ecma_string_from_uint32 (index);
ecma_builtin_helper_def_prop (obj_p,
item_name_string_p,
array_items_p[index],
true, /* Writable */
true, /* Enumerable */
true, /* Configurable */
false); /* Failure handling */
ecma_deref_ecma_string (item_name_string_p);
}
return ecma_make_normal_completion_value (ecma_make_object_value (obj_p));
} /* ecma_op_create_array_object */
/**
* The Function.prototype object's 'bind' routine
*
* See also:
* ECMA-262 v5, 15.3.4.5
*
* @return ecma value
* Returned value must be freed with ecma_free_value.
*/
static ecma_value_t
ecma_builtin_function_prototype_object_bind (ecma_value_t this_arg, /**< this argument */
const ecma_value_t *arguments_list_p, /**< list of arguments */
ecma_length_t arguments_number) /**< number of arguments */
{
ecma_value_t ret_value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
/* 2. */
if (!ecma_op_is_callable (this_arg))
{
ret_value = ecma_raise_type_error (ECMA_ERR_MSG (""));
}
else
{
/* 4. 11. 18. */
ecma_object_t *prototype_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_FUNCTION_PROTOTYPE);
ecma_object_t *function_p = ecma_create_object (prototype_obj_p,
false,
true,
ECMA_OBJECT_TYPE_BOUND_FUNCTION);
ecma_deref_object (prototype_obj_p);
/* 7. */
ecma_value_t *target_function_prop_p;
target_function_prop_p = ecma_create_internal_property (function_p,
ECMA_INTERNAL_PROPERTY_BOUND_FUNCTION_TARGET_FUNCTION);
ecma_object_t *this_arg_obj_p = ecma_get_object_from_value (this_arg);
ECMA_SET_INTERNAL_VALUE_POINTER (*target_function_prop_p, this_arg_obj_p);
/* 8. */
ecma_value_t *bound_this_prop_p;
bound_this_prop_p = ecma_create_internal_property (function_p, ECMA_INTERNAL_PROPERTY_BOUND_FUNCTION_BOUND_THIS);
const ecma_length_t arg_count = arguments_number;
if (arg_count > 0)
{
*bound_this_prop_p = ecma_copy_value_if_not_object (arguments_list_p[0]);
}
else
{
*bound_this_prop_p = ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED);
}
if (arg_count > 1)
{
ecma_collection_header_t *bound_args_collection_p;
bound_args_collection_p = ecma_new_values_collection (&arguments_list_p[1], arg_count - 1, false);
ecma_value_t *bound_args_prop_p;
bound_args_prop_p = ecma_create_internal_property (function_p, ECMA_INTERNAL_PROPERTY_BOUND_FUNCTION_BOUND_ARGS);
ECMA_SET_INTERNAL_VALUE_POINTER (*bound_args_prop_p, bound_args_collection_p);
}
/*
* [[Class]] property is not stored explicitly for objects of ECMA_OBJECT_TYPE_FUNCTION type.
*
* See also: ecma_object_get_class_name
*/
/* 16. */
ecma_number_t length = ECMA_NUMBER_ZERO;
ecma_string_t *magic_string_length_p = ecma_new_ecma_length_string ();
/* 15. */
if (ecma_object_get_class_name (this_arg_obj_p) == LIT_MAGIC_STRING_FUNCTION_UL)
{
ecma_value_t get_len_value = ecma_op_object_get (this_arg_obj_p, magic_string_length_p);
JERRY_ASSERT (!ECMA_IS_VALUE_ERROR (get_len_value));
JERRY_ASSERT (ecma_is_value_number (get_len_value));
const ecma_length_t bound_arg_count = arg_count > 1 ? arg_count - 1 : 0;
/* 15.a */
length = ecma_get_number_from_value (get_len_value) - ((ecma_number_t) bound_arg_count);
ecma_free_value (get_len_value);
/* 15.b */
if (ecma_number_is_negative (length))
{
length = ECMA_NUMBER_ZERO;
}
}
/* 17. */
ecma_value_t completion = ecma_builtin_helper_def_prop (function_p,
magic_string_length_p,
ecma_make_number_value (length),
false, /* Writable */
false, /* Enumerable */
false, /* Configurable */
false); /* Failure handling */
JERRY_ASSERT (ecma_is_value_boolean (completion));
ecma_deref_ecma_string (magic_string_length_p);
/* 19-21. */
ecma_object_t *thrower_p = ecma_builtin_get (ECMA_BUILTIN_ID_TYPE_ERROR_THROWER);
ecma_property_descriptor_t prop_desc = ecma_make_empty_property_descriptor ();
{
prop_desc.is_enumerable_defined = true;
prop_desc.is_enumerable = false;
prop_desc.is_configurable_defined = true;
prop_desc.is_configurable = false;
prop_desc.is_get_defined = true;
prop_desc.get_p = thrower_p;
prop_desc.is_set_defined = true;
prop_desc.set_p = thrower_p;
}
ecma_string_t *magic_string_caller_p = ecma_get_magic_string (LIT_MAGIC_STRING_CALLER);
completion = ecma_op_object_define_own_property (function_p,
magic_string_caller_p,
&prop_desc,
false);
JERRY_ASSERT (ecma_is_value_boolean (completion));
ecma_deref_ecma_string (magic_string_caller_p);
ecma_string_t *magic_string_arguments_p = ecma_get_magic_string (LIT_MAGIC_STRING_ARGUMENTS);
completion = ecma_op_object_define_own_property (function_p,
magic_string_arguments_p,
&prop_desc,
false);
JERRY_ASSERT (ecma_is_value_boolean (completion));
ecma_deref_ecma_string (magic_string_arguments_p);
ecma_deref_object (thrower_p);
/* 22. */
ret_value = ecma_make_object_value (function_p);
}
return ret_value;
} /* ecma_builtin_function_prototype_object_bind */