| protected conditional_expression ( ) : Expression | ||
| return | Expression | |
protected Expression conditional_expression()
{
Expression e;
IToken t = null;
IToken tgt = null;
IToken tlt = null;
IToken tnot = null;
IToken tis = null;
IToken tnint = null;
IToken tin = null;
IToken tisa = null;
e = null;
Expression r = null;
BinaryOperatorType op = BinaryOperatorType.None;
IToken token = null;
TypeReference tr = null;
try { // for error handling
e=sum();
{ // ( ... )*
for (;;)
{
if ((tokenSet_113_.member(LA(1))))
{
{
switch ( LA(1) )
{
case IS:
case IN:
case NOT:
case CMP_OPERATOR:
case GREATER_THAN:
case LESS_THAN:
{
{
{
switch ( LA(1) )
{
case CMP_OPERATOR:
{
{
t = LT(1);
match(CMP_OPERATOR);
if (0==inputState.guessing)
{
op = OperatorParser.ParseComparison(t.getText()); token = t;
}
}
break;
}
case GREATER_THAN:
{
{
tgt = LT(1);
match(GREATER_THAN);
if (0==inputState.guessing)
{
op = BinaryOperatorType.GreaterThan; token = tgt;
}
}
break;
}
case LESS_THAN:
{
{
tlt = LT(1);
match(LESS_THAN);
if (0==inputState.guessing)
{
op = BinaryOperatorType.LessThan; token = tlt;
}
}
break;
}
case NOT:
{
{
tnint = LT(1);
match(NOT);
match(IN);
if (0==inputState.guessing)
{
op = BinaryOperatorType.NotMember; token = tnint;
}
}
break;
}
case IN:
{
{
tin = LT(1);
match(IN);
if (0==inputState.guessing)
{
op = BinaryOperatorType.Member; token = tin;
}
}
break;
}
default:
if ((LA(1)==IS) && (LA(2)==NOT))
{
{
tnot = LT(1);
match(IS);
match(NOT);
if (0==inputState.guessing)
{
op = BinaryOperatorType.ReferenceInequality; token = tnot;
}
}
}
else if ((LA(1)==IS) && (tokenSet_114_.member(LA(2)))) {
{
tis = LT(1);
match(IS);
if (0==inputState.guessing)
{
op = BinaryOperatorType.ReferenceEquality; token = tis;
}
}
}
else
{
throw new NoViableAltException(LT(1), getFilename());
}
break; }
}
r=sum();
}
break;
}
case ISA:
{
{
tisa = LT(1);
match(ISA);
tr=type_reference();
if (0==inputState.guessing)
{
op = BinaryOperatorType.TypeTest;
token = tisa;
r = new TypeofExpression(tr.LexicalInfo, tr);
}
}
break;
}
default:
{
throw new NoViableAltException(LT(1), getFilename());
}
}
}
if (0==inputState.guessing)
{
BinaryExpression be = new BinaryExpression(ToLexicalInfo(token));
be.Operator = op;
be.Left = e;
be.Right = r;
e = be;
}
}
else
{
goto _loop523_breakloop;
}
}
_loop523_breakloop: ;
} // ( ... )*
}
catch (RecognitionException ex)
{
if (0 == inputState.guessing)
{
reportError(ex, "conditional_expression");
recover(ex,tokenSet_115_);
}
else
{
throw ex;
}
}
return e;
}