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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/lit/lit-strings.c
+16 -15
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@@ -22,14 +22,14 @@
*
* NOTE:
* Isolated surrogates are allowed.
* Correct pair of surrogates is not allowed, it should be represented as 4-byte utf-8 character.
*
* @return true if utf-8 string is well-formed
* false otherwise
*/
bool
lit_is_valid_utf8_string (const lit_utf8_byte_t *utf8_buf_p, /**< utf-8 string */
lit_utf8_size_t buf_size) /**< string size */
lit_utf8_size_t buf_size, /**< string size */
bool is_strict) /**< true if surrogate pairs are not allowed */
{
lit_utf8_size_t idx = 0;
@@ -95,21 +95,22 @@ lit_is_valid_utf8_string (const lit_utf8_byte_t *utf8_buf_p, /**< utf-8 string *
return false;
}
if (code_point >= LIT_UTF16_HIGH_SURROGATE_MIN
&& code_point <= LIT_UTF16_HIGH_SURROGATE_MAX)
{
is_prev_code_point_high_surrogate = true;
}
else if (code_point >= LIT_UTF16_LOW_SURROGATE_MIN
&& code_point <= LIT_UTF16_LOW_SURROGATE_MAX
&& is_prev_code_point_high_surrogate)
{
/* sequence of high and low surrogate is not allowed */
return false;
}
else
if (is_strict)
{
is_prev_code_point_high_surrogate = false;
if (code_point >= LIT_UTF16_HIGH_SURROGATE_MIN
&& code_point <= LIT_UTF16_HIGH_SURROGATE_MAX)
{
is_prev_code_point_high_surrogate = true;
}
else if (code_point >= LIT_UTF16_LOW_SURROGATE_MIN
&& code_point <= LIT_UTF16_LOW_SURROGATE_MAX
&& is_prev_code_point_high_surrogate)
{
/* sequence of high and low surrogate is not allowed */
return false;
}
}
idx += extra_bytes_count;