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jerryscript/src/libecmabuiltins/ecma-builtin-global-object.c
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/* Copyright 2014 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "ecma-alloc.h"
#include "ecma-builtins.h"
#include "ecma-conversion.h"
#include "ecma-gc.h"
#include "ecma-globals.h"
#include "ecma-helpers.h"
#include "ecma-try-catch-macro.h"
#include "globals.h"
#define ECMA_BUILTINS_INTERNAL
#include "ecma-builtins-internal.h"
/** \addtogroup ecma ECMA
* @{
*
* \addtogroup ecmabuiltins
* @{
*
* \addtogroup global ECMA Global object built-in
* @{
*/
/**
* List of the Global object's built-in property names
*/
static const ecma_magic_string_id_t ecma_builtin_global_property_names[] =
{
ECMA_MAGIC_STRING_EVAL,
ECMA_MAGIC_STRING_UNDEFINED,
ECMA_MAGIC_STRING_NAN,
ECMA_MAGIC_STRING_INFINITY_UL,
ECMA_MAGIC_STRING_OBJECT_UL,
ECMA_MAGIC_STRING_FUNCTION_UL,
ECMA_MAGIC_STRING_ARRAY_UL,
ECMA_MAGIC_STRING_STRING_UL,
ECMA_MAGIC_STRING_BOOLEAN_UL,
ECMA_MAGIC_STRING_NUMBER_UL,
ECMA_MAGIC_STRING_DATE_UL,
ECMA_MAGIC_STRING_REG_EXP_UL,
ECMA_MAGIC_STRING_ERROR_UL,
ECMA_MAGIC_STRING_EVAL_ERROR_UL,
ECMA_MAGIC_STRING_RANGE_ERROR_UL,
ECMA_MAGIC_STRING_REFERENCE_ERROR_UL,
ECMA_MAGIC_STRING_SYNTAX_ERROR_UL,
ECMA_MAGIC_STRING_TYPE_ERROR_UL,
ECMA_MAGIC_STRING_URI_ERROR_UL,
ECMA_MAGIC_STRING_MATH_UL,
ECMA_MAGIC_STRING_JSON_U,
ECMA_MAGIC_STRING_PARSE_INT,
ECMA_MAGIC_STRING_PARSE_FLOAT,
ECMA_MAGIC_STRING_IS_NAN,
ECMA_MAGIC_STRING_IS_FINITE,
ECMA_MAGIC_STRING_DECODE_URI,
ECMA_MAGIC_STRING_DECODE_URI_COMPONENT,
ECMA_MAGIC_STRING_ENCODE_URI,
ECMA_MAGIC_STRING_ENCODE_URI_COMPONENT,
#ifdef CONFIG_ECMA_COMPACT_PROFILE
ECMA_MAGIC_STRING_COMPACT_PROFILE_ERROR_UL
#endif /* CONFIG_ECMA_COMPACT_PROFILE */
};
/**
* Number of the Global object's built-in properties
*/
static const ecma_length_t ecma_builtin_global_property_number = (sizeof (ecma_builtin_global_property_names) /
sizeof (ecma_magic_string_id_t));
JERRY_STATIC_ASSERT (sizeof (ecma_builtin_global_property_names) > sizeof (void*));
/**
* The Global object's 'eval' routine
*
* See also:
* ECMA-262 v5, 15.1.2.1
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value.
*/
static ecma_completion_value_t
ecma_builtin_global_object_eval (ecma_value_t x) /**< routine's first argument */
{
ECMA_BUILTIN_CP_UNIMPLEMENTED (x);
} /* ecma_builtin_global_object_eval */
/**
* The Global object's 'parseInt' routine
*
* See also:
* ECMA-262 v5, 15.1.2.2
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value.
*/
static ecma_completion_value_t
ecma_builtin_global_object_parse_int (ecma_value_t string, /**< routine's first argument */
ecma_value_t radix) /**< routine's second argument */
{
ECMA_BUILTIN_CP_UNIMPLEMENTED (string, radix);
} /* ecma_builtin_global_object_parse_int */
/**
* The Global object's 'parseFloat' routine
*
* See also:
* ECMA-262 v5, 15.1.2.3
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value.
*/
static ecma_completion_value_t
ecma_builtin_global_object_parse_float (ecma_value_t string) /**< routine's first argument */
{
ECMA_BUILTIN_CP_UNIMPLEMENTED (string);
} /* ecma_builtin_global_object_parse_float */
/**
* The Global object's 'isNaN' routine
*
* See also:
* ECMA-262 v5, 15.1.2.4
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value.
*/
static ecma_completion_value_t
ecma_builtin_global_object_is_nan (ecma_value_t arg) /**< routine's first argument */
{
ecma_completion_value_t ret_value;
ECMA_TRY_CATCH (num_value, ecma_op_to_number (arg), ret_value);
ecma_number_t *num_p = ECMA_GET_POINTER (num_value.u.value.value);
bool is_nan = ecma_number_is_nan (*num_p);
ret_value = ecma_make_simple_completion_value (is_nan ? ECMA_SIMPLE_VALUE_TRUE
: ECMA_SIMPLE_VALUE_FALSE);
ECMA_FINALIZE (num_value);
return ret_value;
} /* ecma_builtin_global_object_is_nan */
/**
* The Global object's 'isFinite' routine
*
* See also:
* ECMA-262 v5, 15.1.2.5
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value.
*/
static ecma_completion_value_t
ecma_builtin_global_object_is_finite (ecma_value_t arg) /**< routine's first argument */
{
ecma_completion_value_t ret_value;
ECMA_TRY_CATCH (num_value, ecma_op_to_number (arg), ret_value);
ecma_number_t *num_p = ECMA_GET_POINTER (num_value.u.value.value);
bool is_finite = !(ecma_number_is_nan (*num_p)
|| ecma_number_is_infinity (*num_p));
ret_value = ecma_make_simple_completion_value (is_finite ? ECMA_SIMPLE_VALUE_TRUE
: ECMA_SIMPLE_VALUE_FALSE);
ECMA_FINALIZE (num_value);
return ret_value;
} /* ecma_builtin_global_object_is_finite */
/**
* The Global object's 'decodeURI' routine
*
* See also:
* ECMA-262 v5, 15.1.3.1
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value.
*/
static ecma_completion_value_t
ecma_builtin_global_object_decode_uri (ecma_value_t encoded_uri) /**< routine's first argument */
{
ECMA_BUILTIN_CP_UNIMPLEMENTED (encoded_uri);
} /* ecma_builtin_global_object_decode_uri */
/**
* The Global object's 'decodeURIComponent' routine
*
* See also:
* ECMA-262 v5, 15.1.3.2
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value.
*/
static ecma_completion_value_t
ecma_builtin_global_object_decode_uri_component (ecma_value_t encoded_uri_component) /**< routine's first argument */
{
ECMA_BUILTIN_CP_UNIMPLEMENTED (encoded_uri_component);
} /* ecma_builtin_global_object_decode_uri_component */
/**
* The Global object's 'encodeURI' routine
*
* See also:
* ECMA-262 v5, 15.1.3.3
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value.
*/
static ecma_completion_value_t
ecma_builtin_global_object_encode_uri (ecma_value_t uri) /**< routine's first argument */
{
ECMA_BUILTIN_CP_UNIMPLEMENTED (uri);
} /* ecma_builtin_global_object_encode_uri */
/**
* The Global object's 'encodeURIComponent' routine
*
* See also:
* ECMA-262 v5, 15.1.3.4
*
* @return completion value
* Returned value must be freed with ecma_free_completion_value.
*/
static ecma_completion_value_t
ecma_builtin_global_object_encode_uri_component (ecma_value_t uri_component) /**< routine's first argument */
{
ECMA_BUILTIN_CP_UNIMPLEMENTED (uri_component);
} /* ecma_builtin_global_object_encode_uri_component */
/**
* Get number of routine's parameters
*
* @return number of parameters
*/
ecma_length_t
ecma_builtin_global_get_routine_parameters_number (ecma_magic_string_id_t builtin_routine_id) /**< built-in routine's
name */
{
switch (builtin_routine_id)
{
case ECMA_MAGIC_STRING_EVAL:
case ECMA_MAGIC_STRING_PARSE_FLOAT:
case ECMA_MAGIC_STRING_IS_NAN:
case ECMA_MAGIC_STRING_IS_FINITE:
case ECMA_MAGIC_STRING_DECODE_URI:
case ECMA_MAGIC_STRING_DECODE_URI_COMPONENT:
case ECMA_MAGIC_STRING_ENCODE_URI:
case ECMA_MAGIC_STRING_ENCODE_URI_COMPONENT:
{
return 1;
}
case ECMA_MAGIC_STRING_PARSE_INT:
{
return 2;
}
default:
{
JERRY_UNREACHABLE ();
}
}
} /* ecma_builtin_global_get_routine_parameters_number */
/**
* Dispatcher of the Global object's built-in routines
*
* @return completion-value
* Returned value must be freed with ecma_free_completion_value.
*/
ecma_completion_value_t
ecma_builtin_global_dispatch_routine (ecma_magic_string_id_t builtin_routine_id, /**< Global object's
built-in routine's name */
ecma_value_t this_arg_value __unused, /**< 'this' argument value */
ecma_value_t arguments_list [], /**< list of arguments passed to routine */
ecma_length_t arguments_number) /**< length of arguments' list */
{
const ecma_value_t value_undefined = ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED);
switch (builtin_routine_id)
{
case ECMA_MAGIC_STRING_EVAL:
{
ecma_value_t arg = (arguments_number >= 1 ? arguments_list[0] : value_undefined);
return ecma_builtin_global_object_eval (arg);
}
case ECMA_MAGIC_STRING_PARSE_INT:
{
ecma_value_t arg1 = (arguments_number >= 1 ? arguments_list[0] : value_undefined);
ecma_value_t arg2 = (arguments_number >= 2 ? arguments_list[1] : value_undefined);
return ecma_builtin_global_object_parse_int (arg1, arg2);
}
case ECMA_MAGIC_STRING_PARSE_FLOAT:
{
ecma_value_t arg = (arguments_number >= 1 ? arguments_list[0] : value_undefined);
return ecma_builtin_global_object_parse_float (arg);
}
case ECMA_MAGIC_STRING_IS_NAN:
{
ecma_value_t arg = (arguments_number >= 1 ? arguments_list[0] : value_undefined);
return ecma_builtin_global_object_is_nan (arg);
}
case ECMA_MAGIC_STRING_IS_FINITE:
{
ecma_value_t arg = (arguments_number >= 1 ? arguments_list[0] : value_undefined);
return ecma_builtin_global_object_is_finite (arg);
}
case ECMA_MAGIC_STRING_DECODE_URI:
{
ecma_value_t arg = (arguments_number >= 1 ? arguments_list[0] : value_undefined);
return ecma_builtin_global_object_decode_uri (arg);
}
case ECMA_MAGIC_STRING_DECODE_URI_COMPONENT:
{
ecma_value_t arg = (arguments_number >= 1 ? arguments_list[0] : value_undefined);
return ecma_builtin_global_object_decode_uri_component (arg);
}
case ECMA_MAGIC_STRING_ENCODE_URI:
{
ecma_value_t arg = (arguments_number >= 1 ? arguments_list[0] : value_undefined);
return ecma_builtin_global_object_encode_uri (arg);
}
case ECMA_MAGIC_STRING_ENCODE_URI_COMPONENT:
{
ecma_value_t arg = (arguments_number >= 1 ? arguments_list[0] : value_undefined);
return ecma_builtin_global_object_encode_uri_component (arg);
}
default:
{
JERRY_UNREACHABLE ();
}
}
} /* ecma_builtin_global_dispatch_routine */
/**
* If the property's name is one of built-in properties of the Global object
* that is not instantiated yet, instantiate the property and
* return pointer to the instantiated property.
*
* @return pointer property, if one was instantiated,
* NULL - otherwise.
*/
ecma_property_t*
ecma_builtin_global_try_to_instantiate_property (ecma_object_t *obj_p, /**< object */
ecma_string_t *prop_name_p) /**< property's name */
{
JERRY_ASSERT (ecma_builtin_is (obj_p, ECMA_BUILTIN_ID_GLOBAL));
JERRY_ASSERT (ecma_find_named_property (obj_p, prop_name_p) == NULL);
ecma_magic_string_id_t id;
if (!ecma_is_string_magic (prop_name_p, &id))
{
return NULL;
}
int32_t index = ecma_builtin_bin_search_for_magic_string_id_in_array (ecma_builtin_global_property_names,
ecma_builtin_global_property_number,
id);
if (index == -1)
{
return NULL;
}
JERRY_ASSERT (index >= 0 && (uint32_t) index < sizeof (uint32_t) * JERRY_BITSINBYTE);
ecma_internal_property_id_t mask_prop_id = ECMA_INTERNAL_PROPERTY_NON_INSTANTIATED_BUILT_IN_MASK_0_31;
uint32_t bit = (uint32_t) 1u << index;
ecma_property_t *mask_prop_p = ecma_find_internal_property (obj_p, mask_prop_id);
if (mask_prop_p == NULL)
{
mask_prop_p = ecma_create_internal_property (obj_p, mask_prop_id);
mask_prop_p->u.internal_property.value = 0;
}
uint32_t bit_mask = mask_prop_p->u.internal_property.value;
if (bit_mask & bit)
{
return NULL;
}
bit_mask |= bit;
mask_prop_p->u.internal_property.value = bit_mask;
ecma_value_t value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
ecma_property_writable_value_t writable = ECMA_PROPERTY_WRITABLE;
ecma_property_enumerable_value_t enumerable = ECMA_PROPERTY_NOT_ENUMERABLE;
ecma_property_configurable_value_t configurable = ECMA_PROPERTY_CONFIGURABLE;
switch (id)
{
case ECMA_MAGIC_STRING_EVAL:
case ECMA_MAGIC_STRING_PARSE_INT:
case ECMA_MAGIC_STRING_PARSE_FLOAT:
case ECMA_MAGIC_STRING_IS_NAN:
case ECMA_MAGIC_STRING_IS_FINITE:
case ECMA_MAGIC_STRING_DECODE_URI:
case ECMA_MAGIC_STRING_DECODE_URI_COMPONENT:
case ECMA_MAGIC_STRING_ENCODE_URI:
case ECMA_MAGIC_STRING_ENCODE_URI_COMPONENT:
{
ecma_object_t *func_obj_p = ecma_builtin_make_function_object_for_routine (ECMA_BUILTIN_ID_GLOBAL,
id);
value = ecma_make_object_value (func_obj_p);
break;
}
case ECMA_MAGIC_STRING_UNDEFINED:
{
value = ecma_make_simple_value (ECMA_SIMPLE_VALUE_UNDEFINED);
writable = ECMA_PROPERTY_NOT_WRITABLE;
enumerable = ECMA_PROPERTY_NOT_ENUMERABLE;
configurable = ECMA_PROPERTY_NOT_CONFIGURABLE;
break;
}
case ECMA_MAGIC_STRING_NAN:
{
ecma_number_t *num_p = ecma_alloc_number ();
*num_p = ecma_number_make_nan ();
value = ecma_make_number_value (num_p);
writable = ECMA_PROPERTY_NOT_WRITABLE;
enumerable = ECMA_PROPERTY_NOT_ENUMERABLE;
configurable = ECMA_PROPERTY_NOT_CONFIGURABLE;
break;
}
case ECMA_MAGIC_STRING_INFINITY_UL:
{
ecma_number_t *num_p = ecma_alloc_number ();
*num_p = ecma_number_make_infinity (false);
value = ecma_make_number_value (num_p);
writable = ECMA_PROPERTY_NOT_WRITABLE;
enumerable = ECMA_PROPERTY_NOT_ENUMERABLE;
configurable = ECMA_PROPERTY_NOT_CONFIGURABLE;
break;
}
case ECMA_MAGIC_STRING_OBJECT_UL:
{
ecma_object_t *object_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_OBJECT);
value = ecma_make_object_value (object_obj_p);
break;
}
case ECMA_MAGIC_STRING_MATH_UL:
{
ecma_object_t *object_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_MATH);
value = ecma_make_object_value (object_obj_p);
break;
}
case ECMA_MAGIC_STRING_STRING_UL:
{
ecma_object_t *string_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_STRING);
value = ecma_make_object_value (string_obj_p);
break;
}
case ECMA_MAGIC_STRING_BOOLEAN_UL:
{
ecma_object_t *boolean_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_BOOLEAN);
value = ecma_make_object_value (boolean_obj_p);
break;
}
case ECMA_MAGIC_STRING_NUMBER_UL:
{
ecma_object_t *number_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_NUMBER);
value = ecma_make_object_value (number_obj_p);
break;
}
case ECMA_MAGIC_STRING_ARRAY_UL:
{
ecma_object_t *array_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_ARRAY);
value = ecma_make_object_value (array_obj_p);
break;
}
case ECMA_MAGIC_STRING_FUNCTION_UL:
{
ecma_object_t *function_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_FUNCTION);
value = ecma_make_object_value (function_obj_p);
break;
}
#ifdef CONFIG_ECMA_COMPACT_PROFILE
case ECMA_MAGIC_STRING_COMPACT_PROFILE_ERROR_UL:
{
ecma_object_t *compact_profile_error_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_COMPACT_PROFILE_ERROR);
value = ecma_make_object_value (compact_profile_error_obj_p);
break;
}
#endif /* CONFIG_ECMA_COMPACT_PROFILE */
case ECMA_MAGIC_STRING_DATE_UL:
case ECMA_MAGIC_STRING_REG_EXP_UL:
case ECMA_MAGIC_STRING_ERROR_UL:
case ECMA_MAGIC_STRING_EVAL_ERROR_UL:
case ECMA_MAGIC_STRING_RANGE_ERROR_UL:
case ECMA_MAGIC_STRING_REFERENCE_ERROR_UL:
case ECMA_MAGIC_STRING_SYNTAX_ERROR_UL:
case ECMA_MAGIC_STRING_TYPE_ERROR_UL:
case ECMA_MAGIC_STRING_URI_ERROR_UL:
case ECMA_MAGIC_STRING_JSON_U:
{
#ifdef CONFIG_ECMA_COMPACT_PROFILE
/* The object throws CompactProfileError upon invocation */
ecma_object_t *get_set_p = ecma_builtin_get (ECMA_BUILTIN_ID_COMPACT_PROFILE_ERROR);
ecma_property_t *compact_profile_thrower_property_p = ecma_create_named_accessor_property (obj_p,
prop_name_p,
get_set_p,
get_set_p,
true,
false);
ecma_deref_object (get_set_p);
return compact_profile_thrower_property_p;
#else /* CONFIG_ECMA_COMPACT_PROFILE */
JERRY_UNIMPLEMENTED ("The built-in is not implemented.");
#endif /* CONFIG_ECMA_COMPACT_PROFILE */
JERRY_UNREACHABLE ();
}
default:
{
JERRY_UNREACHABLE ();
}
}
ecma_property_t *prop_p = ecma_create_named_data_property (obj_p,
prop_name_p,
writable,
enumerable,
configurable);
prop_p->u.named_data_property.value = ecma_copy_value (value, false);
ecma_gc_update_may_ref_younger_object_flag_by_value (obj_p,
prop_p->u.named_data_property.value);
ecma_free_value (value, true);
return prop_p;
} /* ecma_builtin_global_try_to_instantiate_property */
/**
* @}
* @}
* @}
*/
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