Statement CaseDefaultStatement(SSwitch switchStat)
{
//var ret = new SSequence(new SAssignment(vars["min"], new EUnaryOperation(vars["tempCurrentValue"], OperationType.Switch)),
// new SAssignment(vars["max"], new EUnaryOperation(vars["tempCurrentValue"], OperationType.Switch)),
// new SAssignment(vars["increasing_or_decreasing_factor"], new EUnaryOperation(vars["tempCurrentValue"], OperationType.Switch)));
//while(currToken != "}")
//{
// NextToken();
//}
//return ret;
if (Accept(Symbol.S_Default))
{
List <Statement> stats = new List <Statement>();
Expect(Symbol.S_Colon);
while (!Accept(Symbol.S_Break))
{
stats.Add(Statement());
}
Expect(Symbol.S_Semicolon);
switchStat.defaultStat = new SSequence(stats.ToArray());
return(new SSequence(stats.ToArray()));
}
else
{
Expect(Symbol.S_Case);
Numeric caseKey = new Numeric(currToken.sequence, 0);
Expression condition = new EUnaryOperation(new EBinaryOperation(switchStat.dice, new ENumericLiteral(currToken.sequence, 0), OperationType.Substraction), OperationType.EqualZero);
NextToken();
Expect(Symbol.S_Colon);
List <Statement> ifStats = new List <Statement>();
while (!Accept(Symbol.S_Break))
{
ifStats.Add(Statement());
}
Expect(Symbol.S_Semicolon);
switchStat.caseStat.Add(caseKey, new SSequence(ifStats.ToArray()));
var elseStats = CaseDefaultStatement(switchStat);
return(new SIfElse(condition, new SSequence(ifStats.ToArray()), elseStats, null, null));
}
}
Expression BooleanFactor()
{
if (Accept(Symbol.S_True))
{
var num = new ENumericLiteral(1, 0);
AddDOMForLiteral(num);
return(num);
}
else if (Accept(Symbol.S_False))
{
var num = new ENumericLiteral(0, 0);
AddDOMForLiteral(num);
return(num);
}
else if (Accept(Symbol.S_LParen))
{
var exp = BooleanExpression();
Expect(Symbol.S_RParen);
return(exp);
}
//else if(Accept("!"))
//{
// var exp = BooleanExpression();
//}
else
{
var operand1 = NumericExpression();
Expression result = null;
if (Accept(Symbol.S_Equal))
{
var operand2 = NumericExpression();
result = new EUnaryOperation(new EBinaryOperation(operand1, operand2, OperationType.Substraction), OperationType.EqualZero);
}
else if (Accept(Symbol.S_NotEqual))
{
var operand2 = NumericExpression();
result = new EUnaryOperation(new EUnaryOperation(new EBinaryOperation(operand1, operand2, OperationType.Substraction), OperationType.EqualZero), OperationType.NOT);
}
else if (Accept(Symbol.S_EqualLess))
{
var operand2 = NumericExpression();
result = new EUnaryOperation(new EUnaryOperation(new EBinaryOperation(operand2, operand1, OperationType.Substraction), OperationType.LessZero), OperationType.NOT);
}
else if (Accept(Symbol.S_EqualGreater))
{
var operand2 = NumericExpression();
result = new EUnaryOperation(new EUnaryOperation(new EBinaryOperation(operand1, operand2, OperationType.Substraction), OperationType.LessZero), OperationType.NOT);
}
else if (Accept(Symbol.S_Less))
{
var operand2 = NumericExpression();
result = new EUnaryOperation(new EBinaryOperation(operand1, operand2, OperationType.Substraction), OperationType.LessZero);
}
else if (Accept(Symbol.S_Greater))
{
var operand2 = NumericExpression();
result = new EUnaryOperation(new EBinaryOperation(operand2, operand1, OperationType.Substraction), OperationType.LessZero);
}
else
{
Error("BooleanFactor: expect ==, !=, <=, >=, < or >");
}
return(result);
}
}
