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LibJS: Implement exponentiation assignment operator (**=)

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Linus Groh 2020-05-04 23:03:35 +01:00 • committed by Andreas Kling
commit a2e1f1a872
Notes: sideshowbarker 2024-07-19 06:57:56 +09:00
8 changed files with 23 additions and 5 deletions
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6
Libraries/LibJS/Parser.cpp
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@ -133,7 +133,7 @@ Parser::Parser(Lexer lexer)
g_operator_precedence.set(TokenType::Equals, 3);
g_operator_precedence.set(TokenType::PlusEquals, 3);
g_operator_precedence.set(TokenType::MinusEquals, 3);
g_operator_precedence.set(TokenType::AsteriskAsteriskEquals, 3);
g_operator_precedence.set(TokenType::DoubleAsteriskEquals, 3);
g_operator_precedence.set(TokenType::AsteriskEquals, 3);
g_operator_precedence.set(TokenType::SlashEquals, 3);
g_operator_precedence.set(TokenType::PercentEquals, 3);
@ -637,6 +637,9 @@ NonnullRefPtr<Expression> Parser::parse_secondary_expression(NonnullRefPtr<Expre
case TokenType::DoubleAsterisk:
consume();
return create_ast_node<BinaryExpression>(BinaryOp::Exponentiation, move(lhs), parse_expression(min_precedence, associativity));
case TokenType::DoubleAsteriskEquals:
consume();
return create_ast_node<AssignmentExpression>(AssignmentOp::ExponentiationAssignment, move(lhs), parse_expression(min_precedence, associativity));
case TokenType::GreaterThan:
consume();
return create_ast_node<BinaryExpression>(BinaryOp::GreaterThan, move(lhs), parse_expression(min_precedence, associativity));
@ -1192,6 +1195,7 @@ bool Parser::match_secondary_expression() const
|| type == TokenType::SlashEquals
|| type == TokenType::Percent
|| type == TokenType::DoubleAsterisk
|| type == TokenType::DoubleAsteriskEquals
|| type == TokenType::Equals
|| type == TokenType::EqualsEqualsEquals
|| type == TokenType::ExclamationMarkEqualsEquals