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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-helpers.h"
#include "ecma-builtin-helpers.h"
#include "lit-char-helpers.h"
#ifndef CONFIG_DISABLE_JSON_BUILTIN
/** \addtogroup ecma ECMA
* @{
*
* \addtogroup ecmabuiltinhelpers ECMA builtin helper operations
* @{
*/
/**
* Check whether the object is pushed onto the occurence stack
*
* Used by:
* - ecma_builtin_json_object step 1
* - ecma_builtin_json_array step 1
*
* @return true - if the object is pushed onto the occurence stack
* false - otherwise
*/
bool
ecma_json_has_object_in_stack (ecma_json_occurence_stack_item_t *stack_p, /**< stack */
ecma_object_t *object_p) /**< object */
{
while (stack_p != NULL)
{
if (stack_p->object_p == object_p)
{
return true;
}
stack_p = stack_p->next_p;
}
return false;
} /* ecma_json_has_object_in_stack */
/**
* Check the string value existance in the collection.
*
* Used by:
* - ecma_builtin_json_stringify step 4.b.ii.5
*
* @return true, if the string is already in the collection.
*/
bool
ecma_has_string_value_in_collection (ecma_collection_header_t *collection_p, /**< collection */
ecma_value_t string_value) /**< string value */
{
JERRY_ASSERT (ecma_is_value_string (string_value));
ecma_string_t *string_p = ecma_get_string_from_value (string_value);
ecma_value_t *ecma_value_p = ecma_collection_iterator_init (collection_p);
while (ecma_value_p != NULL)
{
ecma_string_t *current_p = ecma_get_string_from_value (*ecma_value_p);
if (ecma_compare_ecma_strings (current_p, string_p))
{
return true;
}
ecma_value_p = ecma_collection_iterator_next (ecma_value_p);
}
return false;
} /* ecma_has_string_value_in_collection*/
/**
* Common function to concatenate key-value pairs into an ecma-string.
*
* See also:
* ECMA-262 v5, 15.12.3
*
* Used by:
* - ecma_builtin_helper_json_create_formatted_json step 10.b.ii
* - ecma_builtin_helper_json_create_non_formatted_json step 10.a.i
*
* @return pointer to ecma-string
* Returned value must be freed with ecma_deref_ecma_string.
*/
static ecma_string_t *
ecma_builtin_helper_json_create_separated_properties (ecma_collection_header_t *partial_p, /**< key-value pairs*/
ecma_string_t *separator_p) /**< separator*/
{
ecma_string_t *properties_str_p = ecma_get_magic_string (LIT_MAGIC_STRING__EMPTY);
ecma_value_t *ecma_value_p = ecma_collection_iterator_init (partial_p);
bool first = true;
while (ecma_value_p != NULL)
{
ecma_string_t *current_p = ecma_get_string_from_value (*ecma_value_p);
ecma_value_p = ecma_collection_iterator_next (ecma_value_p);
if (JERRY_LIKELY (!first))
{
properties_str_p = ecma_concat_ecma_strings (properties_str_p, separator_p);
}
properties_str_p = ecma_concat_ecma_strings (properties_str_p, current_p);
first = false;
}
return properties_str_p;
} /* ecma_builtin_helper_json_create_separated_properties */
/**
* Common function to create a formatted JSON string.
*
* See also:
* ECMA-262 v5, 15.12.3
*
* Used by:
* - ecma_builtin_json_object step 10.b
* - ecma_builtin_json_array step 10.b
*
* @return ecma value
* Returned value must be freed with ecma_free_value.
*/
ecma_value_t
ecma_builtin_helper_json_create_formatted_json (lit_utf8_byte_t left_bracket, /**< left bracket character */
lit_utf8_byte_t right_bracket, /**< right bracket character */
ecma_string_t *stepback_p, /**< stepback*/
ecma_collection_header_t *partial_p, /**< key-value pairs*/
ecma_json_stringify_context_t *context_p) /**< context*/
{
JERRY_ASSERT (left_bracket < LIT_UTF8_1_BYTE_CODE_POINT_MAX
&& right_bracket < LIT_UTF8_1_BYTE_CODE_POINT_MAX);
/* 10.b.i */
lit_utf8_byte_t chars[2] = { LIT_CHAR_COMMA, LIT_CHAR_LF };
ecma_string_t *separator_p = ecma_new_ecma_string_from_utf8 (chars, 2);
separator_p = ecma_concat_ecma_strings (separator_p, context_p->indent_str_p);
/* 10.b.ii */
ecma_string_t *properties_str_p = ecma_builtin_helper_json_create_separated_properties (partial_p, separator_p);
ecma_deref_ecma_string (separator_p);
/* 10.b.iii */
chars[0] = left_bracket;
ecma_string_t *final_str_p = ecma_new_ecma_string_from_utf8 (chars, 2);
final_str_p = ecma_concat_ecma_strings (final_str_p, context_p->indent_str_p);
final_str_p = ecma_concat_ecma_strings (final_str_p, properties_str_p);
ecma_deref_ecma_string (properties_str_p);
chars[0] = LIT_CHAR_LF;
final_str_p = ecma_append_chars_to_string (final_str_p, chars, 1, 1);
final_str_p = ecma_concat_ecma_strings (final_str_p, stepback_p);
chars[0] = right_bracket;
final_str_p = ecma_append_chars_to_string (final_str_p, chars, 1, 1);
return ecma_make_string_value (final_str_p);
} /* ecma_builtin_helper_json_create_formatted_json */
/**
* Common function to create a non-formatted JSON string.
*
* See also:
* ECMA-262 v5, 15.12.3
*
* Used by:
* - ecma_builtin_json_object step 10.a
* - ecma_builtin_json_array step 10.a
*
* @return ecma value
* Returned value must be freed with ecma_free_value.
*/
ecma_value_t
ecma_builtin_helper_json_create_non_formatted_json (lit_utf8_byte_t left_bracket, /**< left bracket character */
lit_utf8_byte_t right_bracket, /**< right bracket character */
ecma_collection_header_t *partial_p) /**< key-value pairs */
{
JERRY_ASSERT (left_bracket < LIT_UTF8_1_BYTE_CODE_POINT_MAX
&& right_bracket < LIT_UTF8_1_BYTE_CODE_POINT_MAX);
/* 10.a */
ecma_string_t *comma_str_p = ecma_get_magic_string (LIT_MAGIC_STRING_COMMA_CHAR);
ecma_string_t *properties_str_p;
/* 10.a.i */
properties_str_p = ecma_builtin_helper_json_create_separated_properties (partial_p, comma_str_p);
/* 10.a.ii */
ecma_string_t *result_str_p = ecma_new_ecma_string_from_code_unit (left_bracket);
result_str_p = ecma_concat_ecma_strings (result_str_p, properties_str_p);
ecma_deref_ecma_string (properties_str_p);
lit_utf8_byte_t chars[1] = { right_bracket };
result_str_p = ecma_append_chars_to_string (result_str_p, chars, 1, 1);
return ecma_make_string_value (result_str_p);
} /* ecma_builtin_helper_json_create_non_formatted_json */
#endif /* !CONFIG_DISABLE_JSON_BUILTIN */
/**
* @}
* @}
*/
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