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/* Copyright JS Foundation and other contributors, http://js.foundation
*
* 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-exceptions.h"
#include "ecma-gc.h"
#include "ecma-globals.h"
#include "ecma-helpers.h"
#include "ecma-objects.h"
#include "ecma-string-object.h"
#include "ecma-try-catch-macro.h"
#include "jrt.h"
#include "lit-magic-strings.h"
#define ECMA_BUILTINS_INTERNAL
#include "ecma-builtins-internal.h"
#define BUILTIN_INC_HEADER_NAME "ecma-builtin-error-prototype.inc.h"
#define BUILTIN_UNDERSCORED_ID error_prototype
#include "ecma-builtin-internal-routines-template.inc.h"
/** \addtogroup ecma ECMA
* @{
*
* \addtogroup ecmabuiltins
* @{
*
* \addtogroup errorprototype ECMA Error.prototype object built-in
* @{
*/
/**
* The Error.prototype object's 'toString' routine
*
* See also:
* ECMA-262 v5, 15.11.4.4
*
* @return ecma value
* Returned value must be freed with ecma_free_value.
*/
static ecma_value_t
ecma_builtin_error_prototype_object_to_string (ecma_value_t this_arg) /**< this argument */
{
ecma_value_t ret_value = ECMA_VALUE_EMPTY;
/* 2. */
if (!ecma_is_value_object (this_arg))
{
ret_value = ecma_raise_type_error (ECMA_ERR_MSG ("Argument 'this' is not an object."));
}
else
{
ecma_object_t *obj_p = ecma_get_object_from_value (this_arg);
ECMA_TRY_CATCH (name_get_ret_value,
ecma_op_object_get_by_magic_id (obj_p, LIT_MAGIC_STRING_NAME),
ret_value);
ecma_value_t name_to_str_completion;
if (ecma_is_value_undefined (name_get_ret_value))
{
name_to_str_completion = ecma_make_magic_string_value (LIT_MAGIC_STRING_ERROR_UL);
}
else
{
name_to_str_completion = ecma_op_to_string (name_get_ret_value);
}
if (JERRY_UNLIKELY (ECMA_IS_VALUE_ERROR (name_to_str_completion)))
{
ret_value = ecma_copy_value (name_to_str_completion);
}
else
{
ECMA_TRY_CATCH (msg_get_ret_value,
ecma_op_object_get_by_magic_id (obj_p, LIT_MAGIC_STRING_MESSAGE),
ret_value);
ecma_value_t msg_to_str_completion;
if (ecma_is_value_undefined (msg_get_ret_value))
{
msg_to_str_completion = ecma_make_magic_string_value (LIT_MAGIC_STRING__EMPTY);
}
else
{
msg_to_str_completion = ecma_op_to_string (msg_get_ret_value);
}
if (JERRY_UNLIKELY (ECMA_IS_VALUE_ERROR (msg_to_str_completion)))
{
ret_value = ecma_copy_value (msg_to_str_completion);
}
else
{
ecma_string_t *name_string_p = ecma_get_string_from_value (name_to_str_completion);
ecma_string_t *msg_string_p = ecma_get_string_from_value (msg_to_str_completion);
ecma_string_t *ret_str_p;
if (ecma_string_is_empty (name_string_p))
{
ret_str_p = msg_string_p;
ecma_ref_ecma_string (ret_str_p);
}
else if (ecma_string_is_empty (msg_string_p))
{
ret_str_p = name_string_p;
ecma_ref_ecma_string (ret_str_p);
}
else
{
const lit_utf8_size_t name_size = ecma_string_get_size (name_string_p);
const lit_utf8_size_t msg_size = ecma_string_get_size (msg_string_p);
const lit_utf8_size_t colon_size = lit_get_magic_string_size (LIT_MAGIC_STRING_COLON_CHAR);
const lit_utf8_size_t space_size = lit_get_magic_string_size (LIT_MAGIC_STRING_SPACE_CHAR);
const lit_utf8_size_t size = name_size + msg_size + colon_size + space_size;
JMEM_DEFINE_LOCAL_ARRAY (ret_str_buffer, size, lit_utf8_byte_t);
lit_utf8_byte_t *ret_str_buffer_p = ret_str_buffer;
lit_utf8_size_t bytes = ecma_string_copy_to_cesu8_buffer (name_string_p, ret_str_buffer_p, name_size);
JERRY_ASSERT (bytes == name_size);
ret_str_buffer_p = ret_str_buffer_p + bytes;
JERRY_ASSERT (ret_str_buffer_p <= ret_str_buffer + size);
ret_str_buffer_p = lit_copy_magic_string_to_buffer (LIT_MAGIC_STRING_COLON_CHAR,
ret_str_buffer_p,
colon_size);
JERRY_ASSERT (ret_str_buffer_p <= ret_str_buffer + size);
ret_str_buffer_p = lit_copy_magic_string_to_buffer (LIT_MAGIC_STRING_SPACE_CHAR,
ret_str_buffer_p,
space_size);
JERRY_ASSERT (ret_str_buffer_p <= ret_str_buffer + size);
bytes = ecma_string_copy_to_cesu8_buffer (msg_string_p, ret_str_buffer_p, msg_size);
JERRY_ASSERT (bytes == msg_size);
ret_str_buffer_p = ret_str_buffer_p + bytes;
JERRY_ASSERT (ret_str_buffer_p == ret_str_buffer + size);
ret_str_p = ecma_new_ecma_string_from_utf8 (ret_str_buffer,
size);
JMEM_FINALIZE_LOCAL_ARRAY (ret_str_buffer);
}
ret_value = ecma_make_string_value (ret_str_p);
}
ecma_free_value (msg_to_str_completion);
ECMA_FINALIZE (msg_get_ret_value);
}
ecma_free_value (name_to_str_completion);
ECMA_FINALIZE (name_get_ret_value);
}
return ret_value;
} /* ecma_builtin_error_prototype_object_to_string */
/**
* @}
* @}
* @}
*/
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