// 11.9 Equality Operators
private dynamic ParseEqualityExpression()
{
var firstToken = _extra.Tokens[_extra.Tokens.Count - 1];
var expr = ParseRelationalExpression();
while (Match("==") || Match("!=") || Match("===") || Match("!=="))
{
var op = Lex().Value;
var r = ParseRelationalExpression();
var lastToken = _extra.Tokens[_extra.Tokens.Count - 1];
expr = new BinaryExpression(_codeGeneration)
{
Operator = op,
Left = expr,
Right = r,
Range = new Range { Start = firstToken.Range.Start, End = lastToken.Range.End },
Loc =
new Loc
{
Start = new Loc.Position { Line = firstToken.Loc.Start.Line, Column = firstToken.Loc.Start.Column },
End = new Loc.Position { Line = lastToken.Loc.End.Line, Column = lastToken.Loc.End.Column }
}
};
}
return expr;
}
private dynamic ParseBitwiseORExpression()
{
var firstToken = _extra.Tokens[_extra.Tokens.Count - 1];
var expr = ParseBitwiseXORExpression();
while (Match('|'))
{
Lex();
var r = ParseBitwiseXORExpression();
var lastToken = _extra.Tokens[_extra.Tokens.Count - 1];
expr = new BinaryExpression(_codeGeneration)
{
Operator = "|",
Left = expr,
Right = r,
Range = new Range { Start = firstToken.Range.Start, End = lastToken.Range.End },
Loc =
new Loc
{
Start = new Loc.Position { Line = firstToken.Loc.Start.Line, Column = firstToken.Loc.Start.Column },
End = new Loc.Position { Line = lastToken.Loc.End.Line, Column = lastToken.Loc.End.Column }
}
};
}
return expr;
}
// 11.8 Relational Operators
private dynamic ParseRelationalExpression()
{
//var expr, previousAllowIn;
var firstToken = _extra.Tokens[_extra.Tokens.Count - 1];
var previousAllowIn = _state.AllowIn;
_state.AllowIn = true;
var expr = ParseShiftExpression();
// PULAR ESPAÇOS!
while (Match('<') || Match('>') || Match("<=") || Match(">=") || (previousAllowIn && MatchKeyword("in")) ||
MatchKeyword("instanceof"))
{
var op = Lex().Value;
var r = ParseShiftExpression();
var lastToken = _extra.Tokens[_extra.Tokens.Count - 1];
expr = new BinaryExpression(_codeGeneration)
{
Operator = op,
Left = expr,
Right = r,
Range = new Range { Start = firstToken.Range.Start, End = lastToken.Range.End },
Loc =
new Loc
{
Start = new Loc.Position { Line = firstToken.Loc.Start.Line, Column = firstToken.Loc.Start.Column },
End = new Loc.Position { Line = lastToken.Loc.End.Line, Column = lastToken.Loc.End.Column }
}
};
}
_state.AllowIn = previousAllowIn;
return expr;
}