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Implement function.toString operation (#4752)

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May increase the memory consumtpion heavily.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2021-08-31 13:37:25 +02:00
committed by GitHub
parent 1c6b18ecdf
commit 6649940ea6
37 changed files with 1002 additions and 192 deletions
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jerry-core/parser/js/js-parser.c
+148 -25
View File
@@ -15,6 +15,7 @@
#include "debugger.h"
#include "ecma-exceptions.h"
#include "ecma-extended-info.h"
#include "ecma-helpers.h"
#include "ecma-literal-storage.h"
#include "ecma-module.h"
@@ -910,11 +911,6 @@ parser_post_processing (parser_context_t *context_p) /**< context */
total_size += sizeof (ecma_value_t);
}
if (context_p->argument_length != UINT16_MAX)
{
total_size += sizeof (ecma_value_t);
}
if (context_p->tagged_template_literal_cp != JMEM_CP_NULL)
{
total_size += sizeof (ecma_value_t);
@@ -925,6 +921,48 @@ parser_post_processing (parser_context_t *context_p) /**< context */
total_size += sizeof (ecma_value_t);
#endif /* JERRY_LINE_INFO */
#if JERRY_ESNEXT || JERRY_FUNCTION_TO_STRING
uint8_t extended_info = 0;
#endif /* JERRY_ESNEXT || JERRY_FUNCTION_TO_STRING */
#if JERRY_ESNEXT
if (context_p->argument_length != UINT16_MAX)
{
extended_info |= CBC_EXTENDED_CODE_FLAGS_HAS_ARGUMENT_LENGTH;
total_size += ecma_extended_info_get_encoded_length (context_p->argument_length);
}
#endif /* JERRY_ESNEXT */
#if JERRY_FUNCTION_TO_STRING
if (context_p->last_context_p != NULL)
{
extended_info |= CBC_EXTENDED_CODE_FLAGS_HAS_SOURCE_CODE_RANGE;
const uint8_t *start_p = context_p->source_start_p;
const uint8_t *function_start_p = context_p->last_context_p->function_start_p;
if (function_start_p < start_p || function_start_p >= start_p + context_p->source_size)
{
JERRY_ASSERT (context_p->arguments_start_p != NULL
&& function_start_p >= context_p->arguments_start_p
&& function_start_p < context_p->arguments_start_p + context_p->arguments_size);
start_p = context_p->arguments_start_p;
extended_info |= CBC_EXTENDED_CODE_FLAGS_SOURCE_CODE_IN_ARGUMENTS;
}
total_size += ecma_extended_info_get_encoded_length ((uint32_t) (function_start_p - start_p));
total_size += ecma_extended_info_get_encoded_length ((uint32_t) (context_p->function_end_p - function_start_p));
}
#endif /* JERRY_FUNCTION_TO_STRING */
#if JERRY_ESNEXT || JERRY_FUNCTION_TO_STRING
if (extended_info != 0)
{
total_size += sizeof (uint8_t);
}
#endif /* JERRY_ESNEXT || JERRY_FUNCTION_TO_STRING */
total_size = JERRY_ALIGNUP (total_size, JMEM_ALIGNMENT);
compiled_code_p = (ecma_compiled_code_t *) parser_malloc (context_p, total_size);
@@ -1327,19 +1365,10 @@ parser_post_processing (parser_context_t *context_p) /**< context */
*(--base_p) = ecma_make_magic_string_value (LIT_MAGIC_STRING__EMPTY);
}
if (context_p->argument_length != UINT16_MAX)
{
compiled_code_p->status_flags |= CBC_CODE_FLAGS_HAS_EXTENDED_INFO;
*(--base_p) = context_p->argument_length;
}
if (context_p->tagged_template_literal_cp != JMEM_CP_NULL)
{
compiled_code_p->status_flags |= CBC_CODE_FLAGS_HAS_TAGGED_LITERALS;
base_p[-1] = (ecma_value_t) context_p->tagged_template_literal_cp;
#if JERRY_LINE_INFO
--base_p;
#endif /* JERRY_LINE_INFO */
*(--base_p) = (ecma_value_t) context_p->tagged_template_literal_cp;
}
#endif /* JERRY_ESNEXT */
@@ -1347,6 +1376,44 @@ parser_post_processing (parser_context_t *context_p) /**< context */
ECMA_SET_INTERNAL_VALUE_POINTER (base_p[-1], line_info_p);
#endif /* JERRY_LINE_INFO */
#if JERRY_ESNEXT || JERRY_FUNCTION_TO_STRING
if (extended_info != 0)
{
#if JERRY_LINE_INFO
base_p--;
#endif /* JERRY_LINE_INFO */
uint8_t *extended_info_p = ((uint8_t *) base_p) - 1;
compiled_code_p->status_flags |= CBC_CODE_FLAGS_HAS_EXTENDED_INFO;
*extended_info_p = extended_info;
#if JERRY_ESNEXT
if (context_p->argument_length != UINT16_MAX)
{
ecma_extended_info_encode_vlq (&extended_info_p, context_p->argument_length);
}
#endif /* JERRY_ESNEXT */
#if JERRY_FUNCTION_TO_STRING
if (context_p->last_context_p != NULL)
{
const uint8_t *start_p = context_p->source_start_p;
if (extended_info & CBC_EXTENDED_CODE_FLAGS_SOURCE_CODE_IN_ARGUMENTS)
{
start_p = context_p->arguments_start_p;
}
const uint8_t *function_start_p = context_p->last_context_p->function_start_p;
ecma_extended_info_encode_vlq (&extended_info_p, (uint32_t) (function_start_p - start_p));
ecma_extended_info_encode_vlq (&extended_info_p, (uint32_t) (context_p->function_end_p - function_start_p));
}
#endif /* JERRY_FUNCTION_TO_STRING */
}
#endif /* JERRY_ESNEXT || JERRY_FUNCTION_TO_STRING */
#if JERRY_PARSER_DUMP_BYTE_CODE
if (context_p->is_show_opcodes)
{
@@ -1793,22 +1860,22 @@ parser_parse_source (void *source_p, /**< source code */
context.module_names_p = NULL;
#endif /* JERRY_MODULE_SYSTEM */
ecma_value_t argument_list = ECMA_VALUE_EMPTY;
context.argument_list = ECMA_VALUE_EMPTY;
if (context.options_p != NULL
&& (context.options_p->options & JERRY_PARSE_HAS_ARGUMENT_LIST))
{
argument_list = context.options_p->argument_list;
context.argument_list = context.options_p->argument_list;
}
else if (context.global_status_flags & ECMA_PARSE_HAS_ARGUMENT_LIST_VALUE)
{
JERRY_ASSERT (context.global_status_flags & ECMA_PARSE_HAS_SOURCE_VALUE);
argument_list = ((ecma_value_t *) source_p)[1];
context.argument_list = ((ecma_value_t *) source_p)[1];
}
if (argument_list != ECMA_VALUE_EMPTY)
if (context.argument_list != ECMA_VALUE_EMPTY)
{
JERRY_ASSERT (ecma_is_value_string (argument_list));
JERRY_ASSERT (ecma_is_value_string (context.argument_list));
context.status_flags |= PARSER_IS_FUNCTION;
#if JERRY_ESNEXT
@@ -1822,7 +1889,7 @@ parser_parse_source (void *source_p, /**< source code */
}
#endif /* JERRY_ESNEXT */
ecma_string_t *string_p = ecma_get_string_from_value (argument_list);
ecma_string_t *string_p = ecma_get_string_from_value (context.argument_list);
uint8_t flags = ECMA_STRING_FLAG_EMPTY;
context.arguments_start_p = ecma_string_get_chars (string_p, &context.arguments_size, NULL, NULL, &flags);
@@ -1881,7 +1948,7 @@ parser_parse_source (void *source_p, /**< source code */
if (CBC_SCRIPT_GET_TYPE (parent_script_p) != CBC_SCRIPT_GENERIC)
{
context.user_value = ((cbc_script_user_t *) parent_script_p)->user_value;
context.user_value = CBC_SCRIPT_GET_USER_VALUE (parent_script_p);
}
#if JERRY_SNAPSHOT_EXEC
}
@@ -1893,8 +1960,20 @@ parser_parse_source (void *source_p, /**< source code */
context.user_value = context.options_p->user_value;
}
uint32_t script_size = (context.user_value != ECMA_VALUE_EMPTY ? sizeof (cbc_script_user_t)
: sizeof (cbc_script_t));
size_t script_size = sizeof (cbc_script_t);
if (context.user_value != ECMA_VALUE_EMPTY)
{
script_size += sizeof (ecma_value_t);
}
#if JERRY_FUNCTION_TO_STRING
if (context.argument_list != ECMA_VALUE_EMPTY)
{
script_size += sizeof (ecma_value_t);
}
#endif /* JERRY_FUNCTION_TO_STRING */
context.script_p = jmem_heap_alloc_block_null_on_error (script_size);
if (JERRY_UNLIKELY (context.script_p == NULL))
@@ -1977,6 +2056,11 @@ parser_parse_source (void *source_p, /**< source code */
context.line_info_p = NULL;
#endif /* JERRY_LINE_INFO */
#if JERRY_FUNCTION_TO_STRING
context.function_start_p = NULL;
context.function_end_p = NULL;
#endif /* JERRY_FUNCTION_TO_STRING */
#if JERRY_PARSER_DUMP_BYTE_CODE
context.is_show_opcodes = (JERRY_CONTEXT (jerry_init_flags) & JERRY_INIT_SHOW_OPCODES);
context.total_byte_code_size = 0;
@@ -2116,9 +2200,44 @@ parser_parse_source (void *source_p, /**< source code */
if (context.user_value != ECMA_VALUE_EMPTY)
{
((cbc_script_user_t *) context.script_p)->user_value = ecma_copy_value_if_not_object (context.user_value);
CBC_SCRIPT_GET_USER_VALUE (context.script_p) = ecma_copy_value_if_not_object (context.user_value);
}
#if JERRY_FUNCTION_TO_STRING
if (!(context.global_status_flags & ECMA_PARSE_HAS_SOURCE_VALUE))
{
ecma_string_t *string_p;
if (context.global_status_flags & ECMA_PARSE_INTERNAL_HAS_4_BYTE_MARKER)
{
string_p = ecma_new_ecma_string_from_utf8_converted_to_cesu8 (context.source_start_p, context.source_size);
}
else
{
string_p = ecma_new_ecma_string_from_utf8 (context.source_start_p, context.source_size);
}
context.script_p->source_code = ecma_make_string_value (string_p);
}
else
{
ecma_value_t source = ((ecma_value_t *) source_p)[0];
ecma_ref_ecma_string (ecma_get_string_from_value (source));
context.script_p->source_code = source;
}
if (context.argument_list != ECMA_VALUE_EMPTY)
{
int idx = (context.user_value != ECMA_VALUE_EMPTY) ? 1 : 0;
CBC_SCRIPT_GET_OPTIONAL_VALUES (context.script_p)[idx] = context.argument_list;
ecma_ref_ecma_string (ecma_get_string_from_value (context.argument_list));
context.script_p->refs_and_type |= CBC_SCRIPT_HAS_FUNCTION_ARGUMENTS;
}
#endif /* JERRY_FUNCTION_TO_STRING */
#if JERRY_PARSER_DUMP_BYTE_CODE
if (context.is_show_opcodes)
{
@@ -2315,6 +2434,10 @@ parser_save_context (parser_context_t *context_p, /**< context */
saved_context_p->line_info_p = context_p->line_info_p;
#endif /* JERRY_LINE_INFO */
#if JERRY_FUNCTION_TO_STRING
saved_context_p->function_start_p = context_p->function_start_p;
#endif /* JERRY_FUNCTION_TO_STRING */
/* Reset private part of the context. */
context_p->status_flags &= PARSER_IS_STRICT;