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Implement correct construction of let/const declarations and function statements. (#3259)

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Various cbc opcodes are added to support the different instantiations.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2019-10-30 16:01:55 +01:00
committed by Dániel Bátyai
parent 1c34539997
commit 1edfa81c76
21 changed files with 571 additions and 385 deletions
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jerry-core/parser/js/js-lexer.c
+31 -26
View File
@@ -1546,6 +1546,36 @@ lexer_process_char_literal (parser_context_t *context_p, /**< context */
*/
#define LEXER_MAX_LITERAL_LOCAL_BUFFER_SIZE 48
/**
* Convert an ident with escapes to a utf8 string.
*/
void
lexer_convert_ident_to_utf8 (const uint8_t *source_p, /**< source string */
uint8_t *destination_p, /**< destination string */
prop_length_t length) /**< length of destination string */
{
const uint8_t *destination_end_p = destination_p + length;
JERRY_ASSERT (length <= PARSER_MAXIMUM_IDENT_LENGTH);
do
{
if (*source_p == LIT_CHAR_BACKSLASH)
{
destination_p += lit_char_to_utf8_bytes (destination_p,
lexer_unchecked_hex_to_character (source_p + 2, 4));
source_p += 6;
continue;
}
JERRY_ASSERT (IS_UTF8_INTERMEDIATE_OCTET (*source_p)
|| lit_char_is_identifier_part (source_p));
*destination_p++ = *source_p++;
}
while (destination_p < destination_end_p);
} /* lexer_convert_ident_to_utf8 */
/**
* Construct a literal object from an identifier.
*/
@@ -1580,32 +1610,7 @@ lexer_construct_literal_object (parser_context_t *context_p, /**< context */
if (literal_p->type == LEXER_IDENT_LITERAL)
{
const uint8_t *source_end_p = context_p->source_end_p;
JERRY_ASSERT (literal_p->length <= PARSER_MAXIMUM_IDENT_LENGTH);
do
{
if (*source_p == LIT_CHAR_BACKSLASH)
{
destination_p += lit_char_to_utf8_bytes (destination_p,
lexer_unchecked_hex_to_character (source_p + 2, 4));
source_p += 6;
continue;
}
*destination_p++ = *source_p++;
while (source_p < source_end_p
&& IS_UTF8_INTERMEDIATE_OCTET (*source_p))
{
*destination_p++ = *source_p++;
}
}
while (source_p < source_end_p
&& (lit_char_is_identifier_part (source_p) || *source_p == LIT_CHAR_BACKSLASH));
JERRY_ASSERT (destination_p == destination_start_p + literal_p->length);
lexer_convert_ident_to_utf8 (source_p, destination_start_p, literal_p->length);
}
else
{