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Improve float number handling and conversion (#4820)

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Fixes #4739.

JerryScript-DCO-1.0-Signed-off-by: Dániel Bátyai dbatyai@inf.u-szeged.hu
This commit is contained in:
Dániel Bátyai
2021-12-03 12:58:37 +01:00
committed by GitHub
parent a1c1d42710
commit 81d2319144
30 changed files with 1022 additions and 1603 deletions
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jerry-core/parser/js/js-lexer.c
+7 -32
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@@ -2619,44 +2619,19 @@ lexer_construct_number_object (parser_context_t *context_p, /**< context */
{
#endif /* JERRY_BUILTIN_BIGINT */
ecma_number_t num;
uint32_t options = 0;
if (context_p->token.extra_value < LEXER_NUMBER_OCTAL)
{
#if JERRY_ESNEXT
num = ecma_utf8_string_to_number (context_p->token.lit_location.char_p, length, ECMA_CONVERSION_ALLOW_UNDERSCORE);
#else /* !JERRY_ESNEXT */
num = ecma_utf8_string_to_number (context_p->token.lit_location.char_p, length, 0);
options |= ECMA_CONVERSION_ALLOW_UNDERSCORE;
#endif /* JERRY_ESNEXT */
if (context_p->token.extra_value == LEXER_NUMBER_OCTAL)
{
num = ecma_utf8_string_to_number_by_radix (context_p->token.lit_location.char_p, length, 8, options);
}
else
{
const uint8_t *src_p = context_p->token.lit_location.char_p;
const uint8_t *src_end_p = src_p + length - 1;
ecma_number_t multiplier = 8.0;
JERRY_ASSERT (src_p[0] == LIT_CHAR_0);
#if JERRY_ESNEXT
if (context_p->token.extra_value == LEXER_NUMBER_BINARY)
{
src_p++;
multiplier = 2.0;
}
else if (LEXER_TO_ASCII_LOWERCASE (src_p[1]) == LIT_CHAR_LOWERCASE_O)
{
src_p++;
}
#endif /* JERRY_ESNEXT */
num = 0;
do
{
if (src_p[1] == LIT_CHAR_UNDERSCORE)
{
src_p++;
}
num = num * multiplier + (ecma_number_t) (*(++src_p) - LIT_CHAR_0);
} while (src_p < src_end_p);
num = ecma_utf8_string_to_number (context_p->token.lit_location.char_p, length, options);
}
if (is_expr)