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Commit 1e981115 authored by Yixin Zhang's avatar Yixin Zhang
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Fix issue #380: Signed integer overflow check 

Instead of checking something like `x * y + z > max` where `x * y` can
overflow, check for `x > (max - z) / y` instead.
parent 79fa8b2f
Hide whitespace changes
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Showing with 394 additions and 872 deletions
src/json.hpp
View file @ 1e981115
......@@ -9311,915 +9311,437 @@ class basic_json
m_start = m_cursor;
assert(m_start != nullptr);
{
lexer_char_t yych;
unsigned int yyaccept = 0;
static const unsigned char yybm[] =
{
0, 0, 0, 0, 0, 0, 0, 0,
0, 32, 32, 0, 0, 32, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
160, 128, 0, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
192, 192, 192, 192, 192, 192, 192, 192,
192, 192, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 0, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
};
if ((m_limit - m_cursor) < 5)
{
fill_line_buffer(5); // LCOV_EXCL_LINE
}
yych = *m_cursor;
if (yybm[0 + yych] & 32)
{
goto basic_json_parser_6;
}
if (yych <= '[')
{
if (yych <= '-')
{
if (yych <= '"')
{
if (yych <= 0x00)
{
goto basic_json_parser_2;
}
if (yych <= '!')
{
goto basic_json_parser_4;
}
goto basic_json_parser_9;
}
else
{
if (yych <= '+')
{
goto basic_json_parser_4;
}
if (yych <= ',')
{
goto basic_json_parser_10;
}
goto basic_json_parser_12;
}
}
else
{
if (yych <= '9')
{
if (yych <= '/')
{
goto basic_json_parser_4;
}
if (yych <= '0')
{
goto basic_json_parser_13;
}
goto basic_json_parser_15;
}
else
{
if (yych <= ':')
{
goto basic_json_parser_17;
}
if (yych <= 'Z')
{
goto basic_json_parser_4;
}
goto basic_json_parser_19;
}
}
}
else
{
if (yych <= 'n')
{
if (yych <= 'e')
{
if (yych == ']')
{
goto basic_json_parser_21;
}
goto basic_json_parser_4;
}
else
{
if (yych <= 'f')
{
goto basic_json_parser_23;
}
if (yych <= 'm')
{
goto basic_json_parser_4;
}
goto basic_json_parser_24;
}
}
else
{
if (yych <= 'z')
{
if (yych == 't')
{
goto basic_json_parser_25;
}
goto basic_json_parser_4;
}
else
{
if (yych <= '{')
{
goto basic_json_parser_26;
}
if (yych == '}')
{
goto basic_json_parser_28;
}
goto basic_json_parser_4;
}
}
}
{
lexer_char_t yych;
unsigned int yyaccept = 0;
static const unsigned char yybm[] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 32, 32, 0, 0, 32, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
160, 128, 0, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
192, 192, 192, 192, 192, 192, 192, 192,
192, 192, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 0, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
};
if ((m_limit - m_cursor) < 5) fill_line_buffer(5); // LCOV_EXCL_LINE
yych = *m_cursor;
if (yybm[0+yych] & 32) {
goto basic_json_parser_6;
}
if (yych <= '[') {
if (yych <= '-') {
if (yych <= '"') {
if (yych <= 0x00) goto basic_json_parser_2;
if (yych <= '!') goto basic_json_parser_4;
goto basic_json_parser_9;
} else {
if (yych <= '+') goto basic_json_parser_4;
if (yych <= ',') goto basic_json_parser_10;
goto basic_json_parser_12;
}
} else {
if (yych <= '9') {
if (yych <= '/') goto basic_json_parser_4;
if (yych <= '0') goto basic_json_parser_13;
goto basic_json_parser_15;
} else {
if (yych <= ':') goto basic_json_parser_17;
if (yych <= 'Z') goto basic_json_parser_4;
goto basic_json_parser_19;
}
}
} else {
if (yych <= 'n') {
if (yych <= 'e') {
if (yych == ']') goto basic_json_parser_21;
goto basic_json_parser_4;
} else {
if (yych <= 'f') goto basic_json_parser_23;
if (yych <= 'm') goto basic_json_parser_4;
goto basic_json_parser_24;
}
} else {
if (yych <= 'z') {
if (yych == 't') goto basic_json_parser_25;
goto basic_json_parser_4;
} else {
if (yych <= '{') goto basic_json_parser_26;
if (yych == '}') goto basic_json_parser_28;
goto basic_json_parser_4;
}
}
}
basic_json_parser_2:
++m_cursor;
{
last_token_type = token_type::end_of_input;
break;
}
++m_cursor;
{ last_token_type = token_type::end_of_input; break; }
basic_json_parser_4:
++m_cursor;
++m_cursor;
basic_json_parser_5:
{
last_token_type = token_type::parse_error;
break;
}
{ last_token_type = token_type::parse_error; break; }
basic_json_parser_6:
++m_cursor;
if (m_limit <= m_cursor)
{
fill_line_buffer(1); // LCOV_EXCL_LINE
}
yych = *m_cursor;
if (yybm[0 + yych] & 32)
{
goto basic_json_parser_6;
}
{
continue;
}
++m_cursor;
if (m_limit <= m_cursor) fill_line_buffer(1); // LCOV_EXCL_LINE
yych = *m_cursor;
if (yybm[0+yych] & 32) {
goto basic_json_parser_6;
}
{ continue; }
basic_json_parser_9:
yyaccept = 0;
yych = *(m_marker = ++m_cursor);
if (yych <= 0x1F)
{
goto basic_json_parser_5;
}
if (yych <= 0x7F)
{
goto basic_json_parser_31;
}
if (yych <= 0xC1)
{
goto basic_json_parser_5;
}
if (yych <= 0xF4)
{
goto basic_json_parser_31;
}
goto basic_json_parser_5;
yyaccept = 0;
yych = *(m_marker = ++m_cursor);
if (yych <= 0x1F) goto basic_json_parser_5;
if (yych <= 0x7F) goto basic_json_parser_31;
if (yych <= 0xC1) goto basic_json_parser_5;
if (yych <= 0xF4) goto basic_json_parser_31;
goto basic_json_parser_5;
basic_json_parser_10:
++m_cursor;
{
last_token_type = token_type::value_separator;
break;
}
++m_cursor;
{ last_token_type = token_type::value_separator; break; }
basic_json_parser_12:
yych = *++m_cursor;
if (yych <= '/')
{
goto basic_json_parser_5;
}
if (yych <= '0')
{
goto basic_json_parser_13;
}
if (yych <= '9')
{
goto basic_json_parser_15;
}
goto basic_json_parser_5;
yych = *++m_cursor;
if (yych <= '/') goto basic_json_parser_5;
if (yych <= '0') goto basic_json_parser_13;
if (yych <= '9') goto basic_json_parser_15;
goto basic_json_parser_5;
basic_json_parser_13:
yyaccept = 1;
yych = *(m_marker = ++m_cursor);
if (yych <= 'D')
{
if (yych == '.')
{
goto basic_json_parser_43;
}
}
else
{
if (yych <= 'E')
{
goto basic_json_parser_44;
}
if (yych == 'e')
{
goto basic_json_parser_44;
}
}
yyaccept = 1;
yych = *(m_marker = ++m_cursor);
if (yych <= 'D') {
if (yych == '.') goto basic_json_parser_43;
} else {
if (yych <= 'E') goto basic_json_parser_44;
if (yych == 'e') goto basic_json_parser_44;
}
basic_json_parser_14:
{
last_token_type = token_type::value_number;
break;
}
{ last_token_type = token_type::value_number; break; }
basic_json_parser_15:
yyaccept = 1;
m_marker = ++m_cursor;
if ((m_limit - m_cursor) < 3)
{
fill_line_buffer(3); // LCOV_EXCL_LINE
}
yych = *m_cursor;
if (yybm[0 + yych] & 64)
{
goto basic_json_parser_15;
}
if (yych <= 'D')
{
if (yych == '.')
{
goto basic_json_parser_43;
}
goto basic_json_parser_14;
}
else
{
if (yych <= 'E')
{
goto basic_json_parser_44;
}
if (yych == 'e')
{
goto basic_json_parser_44;
}
goto basic_json_parser_14;
}
yyaccept = 1;
m_marker = ++m_cursor;
if ((m_limit - m_cursor) < 3) fill_line_buffer(3); // LCOV_EXCL_LINE
yych = *m_cursor;
if (yybm[0+yych] & 64) {
goto basic_json_parser_15;
}
if (yych <= 'D') {
if (yych == '.') goto basic_json_parser_43;
goto basic_json_parser_14;
} else {
if (yych <= 'E') goto basic_json_parser_44;
if (yych == 'e') goto basic_json_parser_44;
goto basic_json_parser_14;
}
basic_json_parser_17:
++m_cursor;
{
last_token_type = token_type::name_separator;
break;
}
++m_cursor;
{ last_token_type = token_type::name_separator; break; }
basic_json_parser_19:
++m_cursor;
{
last_token_type = token_type::begin_array;
break;
}
++m_cursor;
{ last_token_type = token_type::begin_array; break; }
basic_json_parser_21:
++m_cursor;
{
last_token_type = token_type::end_array;
break;
}
++m_cursor;
{ last_token_type = token_type::end_array; break; }
basic_json_parser_23:
yyaccept = 0;
yych = *(m_marker = ++m_cursor);
if (yych == 'a')
{
goto basic_json_parser_45;
}
goto basic_json_parser_5;
yyaccept = 0;
yych = *(m_marker = ++m_cursor);
if (yych == 'a') goto basic_json_parser_45;
goto basic_json_parser_5;
basic_json_parser_24:
yyaccept = 0;
yych = *(m_marker = ++m_cursor);
if (yych == 'u')
{
goto basic_json_parser_46;
}
goto basic_json_parser_5;
yyaccept = 0;
yych = *(m_marker = ++m_cursor);
if (yych == 'u') goto basic_json_parser_46;
goto basic_json_parser_5;
basic_json_parser_25:
yyaccept = 0;
yych = *(m_marker = ++m_cursor);
if (yych == 'r')
{
goto basic_json_parser_47;
}
goto basic_json_parser_5;
yyaccept = 0;
yych = *(m_marker = ++m_cursor);
if (yych == 'r') goto basic_json_parser_47;
goto basic_json_parser_5;
basic_json_parser_26:
++m_cursor;
{
last_token_type = token_type::begin_object;
break;
}
++m_cursor;
{ last_token_type = token_type::begin_object; break; }
basic_json_parser_28:
++m_cursor;
{
last_token_type = token_type::end_object;
break;
}
++m_cursor;
{ last_token_type = token_type::end_object; break; }
basic_json_parser_30:
++m_cursor;
if (m_limit <= m_cursor)
{
fill_line_buffer(1); // LCOV_EXCL_LINE
}
yych = *m_cursor;
++m_cursor;
if (m_limit <= m_cursor) fill_line_buffer(1); // LCOV_EXCL_LINE
yych = *m_cursor;
basic_json_parser_31:
if (yybm[0 + yych] & 128)
{
goto basic_json_parser_30;
}
if (yych <= 0xE0)
{
if (yych <= '\\')
{
if (yych <= 0x1F)
{
goto basic_json_parser_32;
}
if (yych <= '"')
{
goto basic_json_parser_33;
}
goto basic_json_parser_35;
}
else
{
if (yych <= 0xC1)
{
goto basic_json_parser_32;
}
if (yych <= 0xDF)
{
goto basic_json_parser_36;
}
goto basic_json_parser_37;
}
}
else
{
if (yych <= 0xEF)
{
if (yych == 0xED)
{
goto basic_json_parser_39;
}
goto basic_json_parser_38;
}
else
{
if (yych <= 0xF0)
{
goto basic_json_parser_40;
}
if (yych <= 0xF3)
{
goto basic_json_parser_41;
}
if (yych <= 0xF4)
{
goto basic_json_parser_42;
}
}
}
if (yybm[0+yych] & 128) {
goto basic_json_parser_30;
}
if (yych <= 0xE0) {
if (yych <= '\\') {
if (yych <= 0x1F) goto basic_json_parser_32;
if (yych <= '"') goto basic_json_parser_33;
goto basic_json_parser_35;
} else {
if (yych <= 0xC1) goto basic_json_parser_32;
if (yych <= 0xDF) goto basic_json_parser_36;
goto basic_json_parser_37;
}
} else {
if (yych <= 0xEF) {
if (yych == 0xED) goto basic_json_parser_39;
goto basic_json_parser_38;
} else {
if (yych <= 0xF0) goto basic_json_parser_40;
if (yych <= 0xF3) goto basic_json_parser_41;
if (yych <= 0xF4) goto basic_json_parser_42;
}
}
basic_json_parser_32:
m_cursor = m_marker;
if (yyaccept == 0)
{
goto basic_json_parser_5;
}
else
{
goto basic_json_parser_14;
}
m_cursor = m_marker;
if (yyaccept == 0) {
goto basic_json_parser_5;
} else {
goto basic_json_parser_14;
}
basic_json_parser_33:
++m_cursor;
{
last_token_type = token_type::value_string;
break;
}
++m_cursor;
{ last_token_type = token_type::value_string; break; }
basic_json_parser_35:
++m_cursor;
if (m_limit <= m_cursor)
{
fill_line_buffer(1); // LCOV_EXCL_LINE
}
yych = *m_cursor;
if (yych <= 'e')
{
if (yych <= '/')
{
if (yych == '"')
{
goto basic_json_parser_30;
}
if (yych <= '.')
{
goto basic_json_parser_32;
}
goto basic_json_parser_30;
}
else
{
if (yych <= '\\')
{
if (yych <= '[')
{
goto basic_json_parser_32;
}
goto basic_json_parser_30;
}
else
{
if (yych == 'b')
{
goto basic_json_parser_30;
}
goto basic_json_parser_32;
}
}
}
else
{
if (yych <= 'q')
{
if (yych <= 'f')
{
goto basic_json_parser_30;
}
if (yych == 'n')
{
goto basic_json_parser_30;
}
goto basic_json_parser_32;
}
else
{
if (yych <= 's')
{
if (yych <= 'r')
{
goto basic_json_parser_30;
}
goto basic_json_parser_32;
}
else
{
if (yych <= 't')
{
goto basic_json_parser_30;
}
if (yych <= 'u')
{
goto basic_json_parser_48;
}
goto basic_json_parser_32;
}
}
}
basic_json_parser_36:
++m_cursor;
if (m_limit <= m_cursor)
{
fill_line_buffer(1); // LCOV_EXCL_LINE
}
yych = *m_cursor;
if (yych <= 0x7F)
{
goto basic_json_parser_32;
}
if (yych <= 0xBF)
{
goto basic_json_parser_30;
}
++m_cursor;
if (m_limit <= m_cursor) fill_line_buffer(1); // LCOV_EXCL_LINE
yych = *m_cursor;
if (yych <= 'e') {
if (yych <= '/') {
if (yych == '"') goto basic_json_parser_30;
if (yych <= '.') goto basic_json_parser_32;
goto basic_json_parser_30;
} else {
if (yych <= '\\') {
if (yych <= '[') goto basic_json_parser_32;
goto basic_json_parser_30;
} else {
if (yych == 'b') goto basic_json_parser_30;
goto basic_json_parser_32;
basic_json_parser_37:
++m_cursor;
if (m_limit <= m_cursor)
{
fill_line_buffer(1); // LCOV_EXCL_LINE
}
yych = *m_cursor;
if (yych <= 0x9F)
{
goto basic_json_parser_32;
}
if (yych <= 0xBF)
{
goto basic_json_parser_36;
}
}
}
} else {
if (yych <= 'q') {
if (yych <= 'f') goto basic_json_parser_30;
if (yych == 'n') goto basic_json_parser_30;
goto basic_json_parser_32;
} else {
if (yych <= 's') {
if (yych <= 'r') goto basic_json_parser_30;
goto basic_json_parser_32;
basic_json_parser_38:
++m_cursor;
if (m_limit <= m_cursor)
{
fill_line_buffer(1); // LCOV_EXCL_LINE
}
yych = *m_cursor;
if (yych <= 0x7F)
{
goto basic_json_parser_32;
}
if (yych <= 0xBF)
{
goto basic_json_parser_36;
}
} else {
if (yych <= 't') goto basic_json_parser_30;
if (yych <= 'u') goto basic_json_parser_48;
goto basic_json_parser_32;
}
}
}
basic_json_parser_36:
++m_cursor;
if (m_limit <= m_cursor) fill_line_buffer(1); // LCOV_EXCL_LINE
yych = *m_cursor;
if (yych <= 0x7F) goto basic_json_parser_32;
if (yych <= 0xBF) goto basic_json_parser_30;
goto basic_json_parser_32;
basic_json_parser_37:
++m_cursor;
if (m_limit <= m_cursor) fill_line_buffer(1); // LCOV_EXCL_LINE
yych = *m_cursor;
if (yych <= 0x9F) goto basic_json_parser_32;
if (yych <= 0xBF) goto basic_json_parser_36;
goto basic_json_parser_32;
basic_json_parser_38:
++m_cursor;
if (m_limit <= m_cursor) fill_line_buffer(1); // LCOV_EXCL_LINE
yych = *m_cursor;
if (yych <= 0x7F) goto basic_json_parser_32;
if (yych <= 0xBF) goto basic_json_parser_36;
goto basic_json_parser_32;
basic_json_parser_39:
++m_cursor;
if (m_limit <= m_cursor)
{
fill_line_buffer(1); // LCOV_EXCL_LINE
}
yych = *m_cursor;
if (yych <= 0x7F)
{
goto basic_json_parser_32;
}
if (yych <= 0x9F)
{
goto basic_json_parser_36;
}
goto basic_json_parser_32;
++m_cursor;
if (m_limit <= m_cursor) fill_line_buffer(1); // LCOV_EXCL_LINE
yych = *m_cursor;
if (yych <= 0x7F) goto basic_json_parser_32;
if (yych <= 0x9F) goto basic_json_parser_36;
goto basic_json_parser_32;
basic_json_parser_40:
++m_cursor;
if (m_limit <= m_cursor)
{
fill_line_buffer(1); // LCOV_EXCL_LINE
}
yych = *m_cursor;
if (yych <= 0x8F)
{
goto basic_json_parser_32;
}
if (yych <= 0xBF)
{
goto basic_json_parser_38;
}
goto basic_json_parser_32;
++m_cursor;
if (m_limit <= m_cursor) fill_line_buffer(1); // LCOV_EXCL_LINE
yych = *m_cursor;
if (yych <= 0x8F) goto basic_json_parser_32;
if (yych <= 0xBF) goto basic_json_parser_38;
goto basic_json_parser_32;
basic_json_parser_41:
++m_cursor;
if (m_limit <= m_cursor)
{
fill_line_buffer(1); // LCOV_EXCL_LINE
}
yych = *m_cursor;
if (yych <= 0x7F)
{
goto basic_json_parser_32;
}
if (yych <= 0xBF)
{
goto basic_json_parser_38;
}
goto basic_json_parser_32;
++m_cursor;
if (m_limit <= m_cursor) fill_line_buffer(1); // LCOV_EXCL_LINE
yych = *m_cursor;
if (yych <= 0x7F) goto basic_json_parser_32;
if (yych <= 0xBF) goto basic_json_parser_38;
goto basic_json_parser_32;
basic_json_parser_42:
++m_cursor;
if (m_limit <= m_cursor)
{
fill_line_buffer(1); // LCOV_EXCL_LINE
}
yych = *m_cursor;
if (yych <= 0x7F)
{
goto basic_json_parser_32;
}
if (yych <= 0x8F)
{
goto basic_json_parser_38;
}
goto basic_json_parser_32;
++m_cursor;
if (m_limit <= m_cursor) fill_line_buffer(1); // LCOV_EXCL_LINE
yych = *m_cursor;
if (yych <= 0x7F) goto basic_json_parser_32;
if (yych <= 0x8F) goto basic_json_parser_38;
goto basic_json_parser_32;
basic_json_parser_43:
yych = *++m_cursor;
if (yych <= '/')
{
goto basic_json_parser_32;
}
if (yych <= '9')
{
goto basic_json_parser_49;
}
goto basic_json_parser_32;
yych = *++m_cursor;
if (yych <= '/') goto basic_json_parser_32;
if (yych <= '9') goto basic_json_parser_49;
goto basic_json_parser_32;
basic_json_parser_44:
yych = *++m_cursor;
if (yych <= ',')
{
if (yych == '+')
{
goto basic_json_parser_51;
}
goto basic_json_parser_32;
}
else
{
if (yych <= '-')
{
goto basic_json_parser_51;
}
if (yych <= '/')
{
goto basic_json_parser_32;
}
if (yych <= '9')
{
goto basic_json_parser_52;
}
goto basic_json_parser_32;
}
yych = *++m_cursor;
if (yych <= ',') {
if (yych == '+') goto basic_json_parser_51;
goto basic_json_parser_32;
} else {
if (yych <= '-') goto basic_json_parser_51;
if (yych <= '/') goto basic_json_parser_32;
if (yych <= '9') goto basic_json_parser_52;
goto basic_json_parser_32;
}
basic_json_parser_45:
yych = *++m_cursor;
if (yych == 'l')
{
goto basic_json_parser_54;
}
goto basic_json_parser_32;
yych = *++m_cursor;
if (yych == 'l') goto basic_json_parser_54;
goto basic_json_parser_32;
basic_json_parser_46:
yych = *++m_cursor;
if (yych == 'l')
{
goto basic_json_parser_55;
}
goto basic_json_parser_32;
yych = *++m_cursor;
if (yych == 'l') goto basic_json_parser_55;
goto basic_json_parser_32;
basic_json_parser_47:
yych = *++m_cursor;
if (yych == 'u')
{
goto basic_json_parser_56;
}
goto basic_json_parser_32;
yych = *++m_cursor;
if (yych == 'u') goto basic_json_parser_56;
goto basic_json_parser_32;
basic_json_parser_48:
++m_cursor;
if (m_limit <= m_cursor)
{
fill_line_buffer(1); // LCOV_EXCL_LINE
}
yych = *m_cursor;
if (yych <= '@')
{
if (yych <= '/')
{
goto basic_json_parser_32;
}
if (yych <= '9')
{
goto basic_json_parser_57;
}
goto basic_json_parser_32;
}
else
{
if (yych <= 'F')
{
goto basic_json_parser_57;
}
if (yych <= '`')
{
goto basic_json_parser_32;
}
if (yych <= 'f')
{
goto basic_json_parser_57;
}
goto basic_json_parser_32;
}
++m_cursor;
if (m_limit <= m_cursor) fill_line_buffer(1); // LCOV_EXCL_LINE
yych = *m_cursor;
if (yych <= '@') {
if (yych <= '/') goto basic_json_parser_32;
if (yych <= '9') goto basic_json_parser_57;
goto basic_json_parser_32;
} else {
if (yych <= 'F') goto basic_json_parser_57;
if (yych <= '`') goto basic_json_parser_32;
if (yych <= 'f') goto basic_json_parser_57;
goto basic_json_parser_32;
}
basic_json_parser_49:
yyaccept = 1;
m_marker = ++m_cursor;
if ((m_limit - m_cursor) < 3)
{
fill_line_buffer(3); // LCOV_EXCL_LINE
}
yych = *m_cursor;
if (yych <= 'D')
{
if (yych <= '/')
{
goto basic_json_parser_14;
}
if (yych <= '9')
{
goto basic_json_parser_49;
}
goto basic_json_parser_14;
}
else
{
if (yych <= 'E')
{
goto basic_json_parser_44;
}
if (yych == 'e')
{
goto basic_json_parser_44;
}
goto basic_json_parser_14;
}
yyaccept = 1;
m_marker = ++m_cursor;
if ((m_limit - m_cursor) < 3) fill_line_buffer(3); // LCOV_EXCL_LINE
yych = *m_cursor;
if (yych <= 'D') {
if (yych <= '/') goto basic_json_parser_14;
if (yych <= '9') goto basic_json_parser_49;
goto basic_json_parser_14;
} else {
if (yych <= 'E') goto basic_json_parser_44;
if (yych == 'e') goto basic_json_parser_44;
goto basic_json_parser_14;
}
basic_json_parser_51:
yych = *++m_cursor;
if (yych <= '/')
{
goto basic_json_parser_32;
}
if (yych >= ':')
{
goto basic_json_parser_32;
}
yych = *++m_cursor;
if (yych <= '/') goto basic_json_parser_32;
if (yych >= ':') goto basic_json_parser_32;
basic_json_parser_52:
++m_cursor;
if (m_limit <= m_cursor)
{
fill_line_buffer(1); // LCOV_EXCL_LINE
}
yych = *m_cursor;
if (yych <= '/')
{
goto basic_json_parser_14;
}
if (yych <= '9')
{
goto basic_json_parser_52;
}
goto basic_json_parser_14;
++m_cursor;
if (m_limit <= m_cursor) fill_line_buffer(1); // LCOV_EXCL_LINE
yych = *m_cursor;
if (yych <= '/') goto basic_json_parser_14;
if (yych <= '9') goto basic_json_parser_52;
goto basic_json_parser_14;
basic_json_parser_54:
yych = *++m_cursor;
if (yych == 's')
{
goto basic_json_parser_58;
}
goto basic_json_parser_32;
yych = *++m_cursor;
if (yych == 's') goto basic_json_parser_58;
goto basic_json_parser_32;
basic_json_parser_55:
yych = *++m_cursor;
if (yych == 'l')
{
goto basic_json_parser_59;
}
goto basic_json_parser_32;
yych = *++m_cursor;
if (yych == 'l') goto basic_json_parser_59;
goto basic_json_parser_32;
basic_json_parser_56:
yych = *++m_cursor;
if (yych == 'e')
{
goto basic_json_parser_61;
}
goto basic_json_parser_32;
yych = *++m_cursor;
if (yych == 'e') goto basic_json_parser_61;
goto basic_json_parser_32;
basic_json_parser_57:
++m_cursor;
if (m_limit <= m_cursor)
{
fill_line_buffer(1); // LCOV_EXCL_LINE
}
yych = *m_cursor;
if (yych <= '@')
{
if (yych <= '/')
{
goto basic_json_parser_32;
}
if (yych <= '9')
{
goto basic_json_parser_63;
}
goto basic_json_parser_32;
}
else
{
if (yych <= 'F')
{
goto basic_json_parser_63;
}
if (yych <= '`')
{
goto basic_json_parser_32;
}
if (yych <= 'f')
{
goto basic_json_parser_63;
}
goto basic_json_parser_32;
}
++m_cursor;
if (m_limit <= m_cursor) fill_line_buffer(1); // LCOV_EXCL_LINE
yych = *m_cursor;
if (yych <= '@') {
if (yych <= '/') goto basic_json_parser_32;
if (yych <= '9') goto basic_json_parser_63;
goto basic_json_parser_32;
} else {
if (yych <= 'F') goto basic_json_parser_63;
if (yych <= '`') goto basic_json_parser_32;
if (yych <= 'f') goto basic_json_parser_63;
goto basic_json_parser_32;
}
basic_json_parser_58:
yych = *++m_cursor;
if (yych == 'e')
{
goto basic_json_parser_64;
}
goto basic_json_parser_32;
yych = *++m_cursor;
if (yych == 'e') goto basic_json_parser_64;
goto basic_json_parser_32;
basic_json_parser_59:
++m_cursor;
{
last_token_type = token_type::literal_null;
break;
}
++m_cursor;
{ last_token_type = token_type::literal_null; break; }
basic_json_parser_61:
++m_cursor;
{
last_token_type = token_type::literal_true;
break;
}
++m_cursor;
{ last_token_type = token_type::literal_true; break; }
basic_json_parser_63:
++m_cursor;
if (m_limit <= m_cursor)
{
fill_line_buffer(1); // LCOV_EXCL_LINE
}
yych = *m_cursor;
if (yych <= '@')
{
if (yych <= '/')
{
goto basic_json_parser_32;
}
if (yych <= '9')
{
goto basic_json_parser_66;
}
goto basic_json_parser_32;
}
else
{
if (yych <= 'F')
{
goto basic_json_parser_66;
}
if (yych <= '`')
{
goto basic_json_parser_32;
}
if (yych <= 'f')
{
goto basic_json_parser_66;
}
goto basic_json_parser_32;
}
++m_cursor;
if (m_limit <= m_cursor) fill_line_buffer(1); // LCOV_EXCL_LINE
yych = *m_cursor;
if (yych <= '@') {
if (yych <= '/') goto basic_json_parser_32;
if (yych <= '9') goto basic_json_parser_66;
goto basic_json_parser_32;
} else {
if (yych <= 'F') goto basic_json_parser_66;
if (yych <= '`') goto basic_json_parser_32;
if (yych <= 'f') goto basic_json_parser_66;
goto basic_json_parser_32;
}
basic_json_parser_64:
++m_cursor;
{
last_token_type = token_type::literal_false;
break;
}
++m_cursor;
{ last_token_type = token_type::literal_false; break; }
basic_json_parser_66:
++m_cursor;
if (m_limit <= m_cursor)
{
fill_line_buffer(1); // LCOV_EXCL_LINE
}
yych = *m_cursor;
if (yych <= '@')
{
if (yych <= '/')
{
goto basic_json_parser_32;
}
if (yych <= '9')
{
goto basic_json_parser_30;
}
goto basic_json_parser_32;
}
else
{
if (yych <= 'F')
{
goto basic_json_parser_30;
}
if (yych <= '`')
{
goto basic_json_parser_32;
}
if (yych <= 'f')
{
goto basic_json_parser_30;
}
goto basic_json_parser_32;
}
}
++m_cursor;
if (m_limit <= m_cursor) fill_line_buffer(1); // LCOV_EXCL_LINE
yych = *m_cursor;
if (yych <= '@') {
if (yych <= '/') goto basic_json_parser_32;
if (yych <= '9') goto basic_json_parser_30;
goto basic_json_parser_32;
} else {
if (yych <= 'F') goto basic_json_parser_30;
if (yych <= '`') goto basic_json_parser_32;
if (yych <= 'f') goto basic_json_parser_30;
goto basic_json_parser_32;
}
}
}
......@@ -10619,19 +10141,19 @@ basic_json_parser_66:
// skip if definitely not an integer
if (type != value_t::number_float)
{
// multiply last value by ten and add the new digit
auto temp = value * 10 + *curptr - '0';
auto digit = *curptr - '0';
// test for overflow
if (temp < value || temp > max)
// overflow if value * 10 + digit > max, move terms around
// to avoid overflow in intermediate values
if (value > (max - digit) / 10)
{
// overflow
type = value_t::number_float;
}
else
{
// no overflow - save it
value = temp;
// no overflow
value = value * 10 + digit;
}
}
}
......
src/json.hpp.re2c
View file @ 1e981115
......@@ -9769,19 +9769,19 @@ class basic_json
// skip if definitely not an integer
if (type != value_t::number_float)
{
// multiply last value by ten and add the new digit
auto temp = value * 10 + *curptr - '0';
auto digit = *curptr - '0';
// test for overflow
if (temp < value || temp > max)
// overflow if value * 10 + digit > max, move terms around
// to avoid overflow in intermediate values
if (value > (max - digit) / 10)
{
// overflow
type = value_t::number_float;
}
else
{
// no overflow - save it
value = temp;
// no overflow
value = value * 10 + digit;
}
}
}
......
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