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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 "js-parser-tagged-template-literal.h"
#include "ecma-array-object.h"
#include "ecma-builtin-helpers.h"
#include "ecma-gc.h"
#include "ecma-helpers.h"
#include "ecma-objects.h"
#include "js-lexer.h"
/* \addtogroup parser Parser
* @{
*
* \addtogroup jsparser JavaScript
* @{
*
* \addtogroup jsparser_tagged_template_literal Tagged template literal
* @{
*/
/**
* Append the cooked and raw string to the corresponding array
*/
void
parser_tagged_template_literal_append_strings (parser_context_t *context_p, /**< parser context */
ecma_object_t *template_obj_p, /**< template object */
ecma_object_t *raw_strings_p, /**< raw strings object */
uint32_t prop_idx) /**< property index to set the values */
{
lexer_lit_location_t *lit_loc_p = &context_p->token.lit_location;
if (lit_loc_p->length == 0 && !(lit_loc_p->status_flags & LEXER_LIT_LOCATION_HAS_ESCAPE))
{
ecma_builtin_helper_def_prop_by_index (template_obj_p,
prop_idx,
ecma_make_magic_string_value (LIT_MAGIC_STRING__EMPTY),
ECMA_PROPERTY_FLAG_ENUMERABLE);
ecma_builtin_helper_def_prop_by_index (raw_strings_p,
prop_idx,
ecma_make_magic_string_value (LIT_MAGIC_STRING__EMPTY),
ECMA_PROPERTY_FLAG_ENUMERABLE);
return;
}
uint8_t local_byte_array[LEXER_MAX_LITERAL_LOCAL_BUFFER_SIZE];
const uint8_t *source_p =
lexer_convert_literal_to_chars (context_p, &context_p->token.lit_location, local_byte_array, LEXER_STRING_NO_OPTS);
ecma_string_t *raw_str_p;
ecma_string_t *cooked_str_p =
((lit_loc_p->status_flags & LEXER_FLAG_ASCII) ? ecma_new_ecma_string_from_ascii (source_p, lit_loc_p->length)
: ecma_new_ecma_string_from_utf8 (source_p, lit_loc_p->length));
parser_free_allocated_buffer (context_p);
if (lit_loc_p->status_flags & LEXER_LIT_LOCATION_HAS_ESCAPE)
{
context_p->source_p = context_p->token.lit_location.char_p - 1;
lexer_parse_string (context_p, LEXER_STRING_RAW);
source_p =
lexer_convert_literal_to_chars (context_p, &context_p->token.lit_location, local_byte_array, LEXER_STRING_RAW);
raw_str_p =
((lit_loc_p->status_flags & LEXER_FLAG_ASCII) ? ecma_new_ecma_string_from_ascii (source_p, lit_loc_p->length)
: ecma_new_ecma_string_from_utf8 (source_p, lit_loc_p->length));
parser_free_allocated_buffer (context_p);
}
else
{
ecma_ref_ecma_string (cooked_str_p);
raw_str_p = cooked_str_p;
}
ecma_builtin_helper_def_prop_by_index (template_obj_p,
prop_idx,
ecma_make_string_value (cooked_str_p),
ECMA_PROPERTY_FLAG_ENUMERABLE);
ecma_builtin_helper_def_prop_by_index (raw_strings_p,
prop_idx,
ecma_make_string_value (raw_str_p),
ECMA_PROPERTY_FLAG_ENUMERABLE);
ecma_deref_ecma_string (cooked_str_p);
ecma_deref_ecma_string (raw_str_p);
} /* parser_tagged_template_literal_append_strings */
/**
* Create new tagged template literal object
*
* @return pointer to the allocated object
*/
ecma_object_t *
parser_new_tagged_template_literal (ecma_object_t **raw_strings_p) /**< [out] raw strings object */
{
ecma_object_t *template_obj_p = ecma_op_new_array_object (0);
*raw_strings_p = ecma_op_new_array_object (0);
ecma_extended_object_t *template_ext_obj_p = (ecma_extended_object_t *) template_obj_p;
ecma_extended_object_t *raw_ext_obj_p = (ecma_extended_object_t *) *raw_strings_p;
const uint8_t flags = ECMA_PROPERTY_VIRTUAL | ECMA_PROPERTY_FLAG_WRITABLE | ECMA_FAST_ARRAY_FLAG;
JERRY_ASSERT (template_ext_obj_p->u.array.length_prop_and_hole_count == flags);
JERRY_ASSERT (raw_ext_obj_p->u.array.length_prop_and_hole_count == flags);
template_ext_obj_p->u.array.length_prop_and_hole_count = flags | ECMA_ARRAY_TEMPLATE_LITERAL;
raw_ext_obj_p->u.array.length_prop_and_hole_count = flags | ECMA_ARRAY_TEMPLATE_LITERAL;
ecma_builtin_helper_def_prop (template_obj_p,
ecma_get_magic_string (LIT_MAGIC_STRING_RAW),
ecma_make_object_value (*raw_strings_p),
ECMA_PROPERTY_FIXED);
return template_obj_p;
} /* parser_new_tagged_template_literal */
/**
* Set integrity level of the given template array object to "frozen"
*/
static void
parser_tagged_template_literal_freeze_array (ecma_object_t *obj_p)
{
JERRY_ASSERT (ecma_get_object_type (obj_p) == ECMA_OBJECT_TYPE_ARRAY);
ecma_op_ordinary_object_prevent_extensions (obj_p);
ecma_extended_object_t *ext_obj_p = (ecma_extended_object_t *) obj_p;
ext_obj_p->u.array.length_prop_and_hole_count &= (uint32_t) ~ECMA_PROPERTY_FLAG_WRITABLE;
} /* parser_tagged_template_literal_freeze_array */
/**
* Finalize the tagged template object
*/
void
parser_tagged_template_literal_finalize (ecma_object_t *template_obj_p, /**< template object */
ecma_object_t *raw_strings_p) /**< raw strings object */
{
parser_tagged_template_literal_freeze_array (template_obj_p);
parser_tagged_template_literal_freeze_array (raw_strings_p);
} /* parser_tagged_template_literal_finalize */
/**
* @}
* @}
* @}
*/
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