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LibJS: Fix some small remaining issues with parsing unicode escapes

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Added a test to ensure the behavior stays the same.
We now throw on a direct usage of an escaped keywords with a specific
error to make it more clear to the user.
This commit is contained in:
davidot 2021-08-21 11:27:20 +02:00 • committed by Linus Groh
parent b012170d69
commit 7bcffd1b6a
6 changed files with 125 additions and 9 deletions
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Userland/Libraries/LibJS/Token.cpp
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@ -204,6 +204,7 @@ bool Token::is_identifier_name() const
// The standard defines this reversed: Identifiers are IdentifierNames except reserved words
// https://tc39.es/ecma262/#prod-Identifier
return m_type == TokenType::Identifier
|| m_type == TokenType::EscapedKeyword
|| m_type == TokenType::Await
|| m_type == TokenType::BoolLiteral
|| m_type == TokenType::Break