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LibJS: Disallow numerical separators in octal numbers and after '.'

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davidot 2021-11-26 18:30:42 +01:00 • committed by Linus Groh
parent 32016d3924
commit afde1821b5
Notes: sideshowbarker 2024-07-17 23:18:56 +09:00
2 changed files with 34 additions and 4 deletions
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12
Userland/Libraries/LibJS/Lexer.cpp
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@ -654,7 +654,7 @@ Token Lexer::next()
if (m_current_char == '.') {
// decimal
consume();
while (is_ascii_digit(m_current_char) || match_numeric_literal_separator_followed_by(is_ascii_digit))
while (is_ascii_digit(m_current_char))
consume();
if (m_current_char == 'e' || m_current_char == 'E')
is_invalid_numeric_literal = !consume_exponent();
@ -688,7 +688,7 @@ Token Lexer::next()
// octal without '0o' prefix. Forbidden in 'strict mode'
do {
consume();
} while (is_ascii_digit(m_current_char) || match_numeric_literal_separator_followed_by(is_ascii_digit));
} while (is_ascii_digit(m_current_char));
}
} else {
// 1...9 or period
@ -700,11 +700,15 @@ Token Lexer::next()
} else {
if (m_current_char == '.') {
consume();
while (is_ascii_digit(m_current_char) || match_numeric_literal_separator_followed_by(is_ascii_digit))
if (m_current_char == '_')
is_invalid_numeric_literal = true;
while (is_ascii_digit(m_current_char) || match_numeric_literal_separator_followed_by(is_ascii_digit)) {
consume();
}
}
if (m_current_char == 'e' || m_current_char == 'E')
is_invalid_numeric_literal = !consume_exponent();
is_invalid_numeric_literal = is_invalid_numeric_literal || !consume_exponent();
}
}
if (is_invalid_numeric_literal) {