mirror of
https://github.com/jerryscript-project/jerryscript.git
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a2d3ea61eb
This patch adds two new string concatenation functions: ecma_append_chars_to_string and ecma_append_magic_string_to_string The former appends a cesu8 byte array and the latter appends a magic string to the end of an ecma-string. These two free (dereference) their ecma-string argument, and this change is also applied to the original ecma_concat_ecma_strings function which simplifies string handling in most cases. JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
351 lines
10 KiB
C
351 lines
10 KiB
C
/* Copyright JS Foundation and other contributors, http://js.foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdarg.h>
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#include "ecma-builtins.h"
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#include "ecma-conversion.h"
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#include "ecma-exceptions.h"
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#include "ecma-gc.h"
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#include "ecma-globals.h"
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#include "ecma-helpers.h"
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#include "ecma-objects.h"
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#include "jcontext.h"
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#include "jrt.h"
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/** \addtogroup ecma ECMA
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* @{
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*
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* \addtogroup exceptions Exceptions
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* @{
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*/
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/**
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* Standard ecma-error object constructor.
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*
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* @return pointer to ecma-object representing specified error
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* with reference counter set to one.
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*/
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ecma_object_t *
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ecma_new_standard_error (ecma_standard_error_t error_type) /**< native error type */
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{
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#ifndef CONFIG_DISABLE_ERROR_BUILTINS
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ecma_builtin_id_t prototype_id = ECMA_BUILTIN_ID__COUNT;
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switch (error_type)
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{
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case ECMA_ERROR_COMMON:
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{
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prototype_id = ECMA_BUILTIN_ID_ERROR_PROTOTYPE;
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break;
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}
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case ECMA_ERROR_EVAL:
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{
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prototype_id = ECMA_BUILTIN_ID_EVAL_ERROR_PROTOTYPE;
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break;
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}
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case ECMA_ERROR_RANGE:
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{
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prototype_id = ECMA_BUILTIN_ID_RANGE_ERROR_PROTOTYPE;
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break;
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}
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case ECMA_ERROR_REFERENCE:
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{
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prototype_id = ECMA_BUILTIN_ID_REFERENCE_ERROR_PROTOTYPE;
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break;
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}
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case ECMA_ERROR_TYPE:
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{
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prototype_id = ECMA_BUILTIN_ID_TYPE_ERROR_PROTOTYPE;
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break;
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}
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case ECMA_ERROR_URI:
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{
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prototype_id = ECMA_BUILTIN_ID_URI_ERROR_PROTOTYPE;
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break;
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}
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case ECMA_ERROR_SYNTAX:
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{
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prototype_id = ECMA_BUILTIN_ID_SYNTAX_ERROR_PROTOTYPE;
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break;
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}
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}
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#else
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JERRY_UNUSED (error_type);
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ecma_builtin_id_t prototype_id = ECMA_BUILTIN_ID_ERROR_PROTOTYPE;
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#endif /* !CONFIG_DISABLE_ERROR_BUILTINS */
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ecma_object_t *prototype_obj_p = ecma_builtin_get (prototype_id);
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ecma_object_t *new_error_obj_p = ecma_create_object (prototype_obj_p,
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sizeof (ecma_extended_object_t),
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ECMA_OBJECT_TYPE_CLASS);
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ecma_deref_object (prototype_obj_p);
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((ecma_extended_object_t *) new_error_obj_p)->u.class_prop.class_id = LIT_MAGIC_STRING_ERROR_UL;
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return new_error_obj_p;
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} /* ecma_new_standard_error */
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/**
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* Standard ecma-error object constructor.
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*
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* @return pointer to ecma-object representing specified error
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* with reference counter set to one.
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*/
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ecma_object_t *
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ecma_new_standard_error_with_message (ecma_standard_error_t error_type, /**< native error type */
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ecma_string_t *message_string_p) /**< message string */
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{
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ecma_object_t *new_error_obj_p = ecma_new_standard_error (error_type);
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ecma_string_t *message_magic_string_p = ecma_get_magic_string (LIT_MAGIC_STRING_MESSAGE);
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ecma_property_value_t *prop_value_p;
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prop_value_p = ecma_create_named_data_property (new_error_obj_p,
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message_magic_string_p,
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ECMA_PROPERTY_CONFIGURABLE_WRITABLE,
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NULL);
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ecma_deref_ecma_string (message_magic_string_p);
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ecma_ref_ecma_string (message_string_p);
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prop_value_p->value = ecma_make_string_value (message_string_p);
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return new_error_obj_p;
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} /* ecma_new_standard_error_with_message */
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/**
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* Raise a standard ecma-error with the given type and message.
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*
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* @return ecma value
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* Returned value must be freed with ecma_free_value
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*/
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ecma_value_t
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ecma_raise_standard_error (ecma_standard_error_t error_type, /**< error type */
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const lit_utf8_byte_t *msg_p) /**< error message */
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{
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ecma_object_t *error_obj_p;
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if (msg_p != NULL)
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{
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ecma_string_t *error_msg_p = ecma_new_ecma_string_from_utf8 (msg_p,
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lit_zt_utf8_string_size (msg_p));
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error_obj_p = ecma_new_standard_error_with_message (error_type, error_msg_p);
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ecma_deref_ecma_string (error_msg_p);
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}
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else
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{
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error_obj_p = ecma_new_standard_error (error_type);
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}
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JERRY_CONTEXT (error_value) = ecma_make_object_value (error_obj_p);
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return ECMA_VALUE_ERROR;
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} /* ecma_raise_standard_error */
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#ifdef JERRY_ENABLE_ERROR_MESSAGES
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/**
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* Raise a standard ecma-error with the given format string and arguments.
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*
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* @return ecma value
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* Returned value must be freed with ecma_free_value
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*/
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ecma_value_t
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ecma_raise_standard_error_with_format (ecma_standard_error_t error_type, /**< error type */
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const char *format, /**< format string */
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...) /**< ecma-values */
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{
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JERRY_ASSERT (format != NULL);
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ecma_string_t *error_msg_p = ecma_get_magic_string (LIT_MAGIC_STRING__EMPTY);
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const char *start_p = format;
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const char *end_p = format;
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va_list args;
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va_start (args, format);
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while (*end_p)
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{
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if (*end_p == '%')
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{
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/* Concat template string. */
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if (end_p > start_p)
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{
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const lit_utf8_byte_t *chars_p = (const lit_utf8_byte_t *) start_p;
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lit_utf8_size_t chars_size = (lit_utf8_size_t) (end_p - start_p);
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error_msg_p = ecma_append_chars_to_string (error_msg_p,
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chars_p,
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chars_size,
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lit_utf8_string_length (chars_p, chars_size));
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}
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/* Convert an argument to string without side effects. */
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ecma_string_t *arg_string_p;
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const ecma_value_t arg_val = va_arg (args, ecma_value_t);
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if (unlikely (ecma_is_value_object (arg_val)))
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{
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ecma_object_t *arg_object_p = ecma_get_object_from_value (arg_val);
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lit_magic_string_id_t class_name = ecma_object_get_class_name (arg_object_p);
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arg_string_p = ecma_get_magic_string (class_name);
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}
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else
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{
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ecma_value_t str_val = ecma_op_to_string (arg_val);
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arg_string_p = ecma_get_string_from_value (str_val);
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}
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/* Concat argument. */
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error_msg_p = ecma_concat_ecma_strings (error_msg_p, arg_string_p);
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ecma_deref_ecma_string (arg_string_p);
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start_p = end_p + 1;
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}
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end_p++;
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}
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va_end (args);
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/* Concat reset of template string. */
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if (start_p < end_p)
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{
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const lit_utf8_byte_t *chars_p = (const lit_utf8_byte_t *) start_p;
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lit_utf8_size_t chars_size = (lit_utf8_size_t) (end_p - start_p);
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error_msg_p = ecma_append_chars_to_string (error_msg_p,
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chars_p,
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chars_size,
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lit_utf8_string_length (chars_p, chars_size));
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}
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ecma_object_t *error_obj_p = ecma_new_standard_error_with_message (error_type, error_msg_p);
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ecma_deref_ecma_string (error_msg_p);
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JERRY_CONTEXT (error_value) = ecma_make_object_value (error_obj_p);
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return ECMA_VALUE_ERROR;
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} /* ecma_raise_standard_error_with_format */
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#endif /* JERRY_ENABLE_ERROR_MESSAGES */
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/**
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* Raise a common error with the given message.
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*
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* @return ecma value
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* Returned value must be freed with ecma_free_value
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*/
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ecma_value_t
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ecma_raise_common_error (const char *msg_p) /**< error message */
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{
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return ecma_raise_standard_error (ECMA_ERROR_COMMON, (const lit_utf8_byte_t *) msg_p);
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} /* ecma_raise_common_error */
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/**
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* Raise an EvalError with the given message.
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*
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* See also: ECMA-262 v5, 15.11.6.1
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*
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* @return ecma value
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* Returned value must be freed with ecma_free_value
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*/
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ecma_value_t
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ecma_raise_eval_error (const char *msg_p) /**< error message */
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{
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return ecma_raise_standard_error (ECMA_ERROR_EVAL, (const lit_utf8_byte_t *) msg_p);
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} /* ecma_raise_eval_error */
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/**
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* Raise a RangeError with the given message.
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*
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* See also: ECMA-262 v5, 15.11.6.2
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*
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* @return ecma value
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* Returned value must be freed with ecma_free_value
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*/
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ecma_value_t
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ecma_raise_range_error (const char *msg_p) /**< error message */
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{
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return ecma_raise_standard_error (ECMA_ERROR_RANGE, (const lit_utf8_byte_t *) msg_p);
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} /* ecma_raise_range_error */
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/**
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* Raise a ReferenceError with the given message.
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*
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* See also: ECMA-262 v5, 15.11.6.3
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*
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* @return ecma value
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* Returned value must be freed with ecma_free_value
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*/
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ecma_value_t
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ecma_raise_reference_error (const char *msg_p) /**< error message */
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{
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return ecma_raise_standard_error (ECMA_ERROR_REFERENCE, (const lit_utf8_byte_t *) msg_p);
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} /* ecma_raise_reference_error */
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/**
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* Raise a SyntaxError with the given message.
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*
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* See also: ECMA-262 v5, 15.11.6.4
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*
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* @return ecma value
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* Returned value must be freed with ecma_free_value
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*/
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ecma_value_t
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ecma_raise_syntax_error (const char *msg_p) /**< error message */
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{
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return ecma_raise_standard_error (ECMA_ERROR_SYNTAX, (const lit_utf8_byte_t *) msg_p);
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} /* ecma_raise_syntax_error */
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/**
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* Raise a TypeError with the given message.
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*
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* See also: ECMA-262 v5, 15.11.6.5
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*
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* @return ecma value
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* Returned value must be freed with ecma_free_value
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*/
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ecma_value_t
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ecma_raise_type_error (const char *msg_p) /**< error message */
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{
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return ecma_raise_standard_error (ECMA_ERROR_TYPE, (const lit_utf8_byte_t *) msg_p);
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} /* ecma_raise_type_error */
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/**
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* Raise a URIError with the given message.
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*
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* See also: ECMA-262 v5, 15.11.6.6
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*
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* @return ecma value
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* Returned value must be freed with ecma_free_value
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*/
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ecma_value_t
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ecma_raise_uri_error (const char *msg_p) /**< error message */
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{
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return ecma_raise_standard_error (ECMA_ERROR_URI, (const lit_utf8_byte_t *) msg_p);
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} /* ecma_raise_uri_error */
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/**
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* @}
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* @}
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*/
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