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LibJS: Implement bitwise unsigned right shift operator (>>>)

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Linus Groh
2020-04-23 15:43:10 +01:00
committed by Andreas Kling
parent 502d1f5165
commit 396ecfa2d7
6 changed files with 108 additions and 0 deletions
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9
Libraries/LibJS/Parser.cpp
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@@ -1,5 +1,6 @@
/*
* Copyright (c) 2020, Stephan Unverwerth <s.unverwerth@gmx.de>
* Copyright (c) 2020, Linus Groh <mail@linusgroh.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -589,6 +590,12 @@ NonnullRefPtr<Expression> Parser::parse_secondary_expression(NonnullRefPtr<Expre
case TokenType::ShiftRightEquals:
consume();
return create_ast_node<AssignmentExpression>(AssignmentOp::RightShiftAssignment, move(lhs), parse_expression(min_precedence, associativity));
case TokenType::UnsignedShiftRight:
consume();
return create_ast_node<BinaryExpression>(BinaryOp::UnsignedRightShift, move(lhs), parse_expression(min_precedence, associativity));
case TokenType::UnsignedShiftRightEquals:
consume();
return create_ast_node<AssignmentExpression>(AssignmentOp::UnsignedRightShiftAssignment, move(lhs), parse_expression(min_precedence, associativity));
case TokenType::ParenOpen:
return parse_call_expression(move(lhs));
case TokenType::Equals:
@@ -1078,6 +1085,8 @@ bool Parser::match_secondary_expression() const
|| type == TokenType::ShiftLeftEquals
|| type == TokenType::ShiftRight
|| type == TokenType::ShiftRightEquals
|| type == TokenType::UnsignedShiftRight
|| type == TokenType::UnsignedShiftRightEquals
|| type == TokenType::DoubleAmpersand
|| type == TokenType::DoublePipe
|| type == TokenType::DoubleQuestionMark;