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LibJS: Allow reserved words as keys in object expressions.

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This commit is contained in:
Stephan Unverwerth 2020-04-18 20:31:27 +02:00 • committed by Andreas Kling
parent 0345fdcb77
commit bf5b251684
5 changed files with 61 additions and 3 deletions
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40
Libraries/LibJS/Token.cpp
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@ -129,4 +129,44 @@ bool Token::bool_value() const
return m_value == "true";
}
bool Token::is_identifier_name() const
{
// IdentifierNames are Identifiers + ReservedWords
// The standard defines this reversed: Identifiers are IdentifierNames except reserved words
// https://www.ecma-international.org/ecma-262/5.1/#sec-7.6
return m_type == TokenType::Identifier
|| m_type == TokenType::Await
|| m_type == TokenType::BoolLiteral
|| m_type == TokenType::Break
|| m_type == TokenType::Case
|| m_type == TokenType::Catch
|| m_type == TokenType::Class
|| m_type == TokenType::Const
|| m_type == TokenType::Continue
|| m_type == TokenType::Default
|| m_type == TokenType::Delete
|| m_type == TokenType::Do
|| m_type == TokenType::Else
|| m_type == TokenType::Finally
|| m_type == TokenType::For
|| m_type == TokenType::Function
|| m_type == TokenType::If
|| m_type == TokenType::In
|| m_type == TokenType::Instanceof
|| m_type == TokenType::Interface
|| m_type == TokenType::Let
|| m_type == TokenType::New
|| m_type == TokenType::NullLiteral
|| m_type == TokenType::Return
|| m_type == TokenType::Switch
|| m_type == TokenType::This
|| m_type == TokenType::Throw
|| m_type == TokenType::Try
|| m_type == TokenType::Typeof
|| m_type == TokenType::Var
|| m_type == TokenType::Void
|| m_type == TokenType::While
|| m_type == TokenType::Yield;
}
}