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Invalid regexp literals should throw syntax error in ES11 (#4506)

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JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
This commit is contained in:
Robert Fancsik
2021-01-19 16:20:23 +01:00
committed by GitHub
parent d97540e883
commit 3e548401fd
11 changed files with 12 additions and 536 deletions
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jerry-core/parser/js/js-lexer.c
+3 -81
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@@ -95,42 +95,6 @@ lexer_hex_to_code_point (const uint8_t *source_p, /**< current source position *
#if ENABLED (JERRY_ESNEXT)
/**
* Find a string literal in the literal pool matching with the given buffer's content
*
* @return PARSER_INVALID_LITERAL_INDEX - if the literal is not present in the literal pool
* literal's index in the pool - otherwise
*/
static uint16_t
parser_find_string_literal (parser_context_t *context_p, /**< context */
lexer_literal_t **out_literal_p, /**< [out] found literal */
uint8_t *buffer_p, /**< character buffer */
lit_utf8_size_t size) /**< buffer's size */
{
JERRY_ASSERT (out_literal_p != NULL);
JERRY_ASSERT (buffer_p != NULL);
uint16_t literal_index = 0;
lexer_literal_t *literal_p;
parser_list_iterator_t literal_iterator;
parser_list_iterator_init (&context_p->literal_pool, &literal_iterator);
while ((literal_p = (lexer_literal_t *) parser_list_iterator_next (&literal_iterator)) != NULL)
{
if (literal_p->type == LEXER_STRING_LITERAL
&& literal_p->prop.length == size
&& memcmp (literal_p->u.char_p, buffer_p, size) == 0)
{
*out_literal_p = literal_p;
return literal_index;
}
literal_index++;
}
return PARSER_INVALID_LITERAL_INDEX;
} /* parser_find_string_literal */
/**
* Parse hexadecimal character sequence enclosed in braces
*
@@ -3104,56 +3068,14 @@ lexer_construct_regexp_object (parser_context_t *context_p, /**< context */
re_compiled_code_t *re_bytecode_p = re_compile_bytecode (pattern_str_p, current_flags);
ecma_deref_ecma_string (pattern_str_p);
lexer_literal_t *literal_p = NULL;
uint8_t literal_type = LEXER_REGEXP_LITERAL;
if (JERRY_UNLIKELY (re_bytecode_p == NULL))
{
#if ENABLED (JERRY_ESNEXT)
ecma_value_t error = jcontext_take_exception ();
ecma_property_t *prop_p = ecma_find_named_property (ecma_get_object_from_value (error),
ecma_get_magic_string (LIT_MAGIC_STRING_MESSAGE));
const char default_msg[] = "Invalid regular expression";
lit_utf8_byte_t *buffer_p = (lit_utf8_byte_t *) default_msg;
lit_utf8_size_t size = sizeof (buffer_p) - 1;
if (prop_p != NULL)
{
ecma_string_t *message_p = ecma_get_string_from_value (ECMA_PROPERTY_VALUE_PTR (prop_p)->value);
JERRY_ASSERT (!ECMA_IS_DIRECT_STRING (message_p));
JERRY_ASSERT (ECMA_STRING_GET_CONTAINER (message_p) == ECMA_STRING_CONTAINER_HEAP_ASCII_STRING);
buffer_p = ECMA_ASCII_STRING_GET_BUFFER (message_p);
size = ECMA_ASCII_STRING_GET_SIZE (message_p);
}
uint16_t literal_index = parser_find_string_literal (context_p, &literal_p, buffer_p, size);
if (literal_index != PARSER_INVALID_LITERAL_INDEX)
{
ecma_free_value (error);
context_p->lit_object.literal_p = literal_p;
context_p->lit_object.index = literal_index;
return;
}
literal_p = (lexer_literal_t *) parser_list_append (context_p, &context_p->literal_pool);
literal_p->u.char_p = (uint8_t *) jmem_heap_alloc_block (size);
memcpy ((uint8_t *) literal_p->u.char_p, buffer_p, size);
literal_type = LEXER_STRING_LITERAL;
length = size;
ecma_free_value (error);
#else /* !ENABLED (JERRY_ESNEXT) */
parser_raise_error (context_p, PARSER_ERR_INVALID_REGEXP);
#endif /* ENABLED (JERRY_ESNEXT) */
}
else
{
literal_p = (lexer_literal_t *) parser_list_append (context_p, &context_p->literal_pool);
literal_p->u.bytecode_p = (ecma_compiled_code_t *) re_bytecode_p;
}
literal_p->type = literal_type;
lexer_literal_t *literal_p = (lexer_literal_t *) parser_list_append (context_p, &context_p->literal_pool);
literal_p->u.bytecode_p = (ecma_compiled_code_t *) re_bytecode_p;
literal_p->type = LEXER_REGEXP_LITERAL;
literal_p->prop.length = (prop_length_t) length;
literal_p->status_flags = 0;