public override Expression VisitRelational_expression(Relational_expressionContext context)
{
var expression = Visit(context.children[0]);
for (int i = 1; i < context.children.Count - 1; i += 2)
{
var current = Visit(context.children[i + 1]);
var op = context.children[i].GetText();
if (op == "<")
{
expression = Expression.LessThan(expression, current);
}
else if (op == ">")
{
expression = Expression.GreaterThan(expression, current);
}
else if (op == "<=")
{
expression = Expression.LessThanOrEqual(expression, current);
}
else if (op == ">=")
{
expression = Expression.GreaterThanOrEqual(expression, current);
}
else
{
throw new CompilationException($"Unsupported operation. Operation={op}", context);
}
}
return(expression);
}
public Relational_expressionContext relational_expression() {
Relational_expressionContext _localctx = new Relational_expressionContext(_ctx, State);
EnterRule(_localctx, 226, RULE_relational_expression);
int _la;
try {
EnterOuterAlt(_localctx, 1);
{
State = 1243; shift_expression();
State = 1248;
_errHandler.Sync(this);
_la = _input.La(1);
while (((((_la - 81)) & ~0x3f) == 0 && ((1L << (_la - 81)) & ((1L << (GT - 81)) | (1L << (LT - 81)) | (1L << (LE - 81)) | (1L << (GE - 81)))) != 0)) {
{
{
State = 1244;
_la = _input.La(1);
if ( !(((((_la - 81)) & ~0x3f) == 0 && ((1L << (_la - 81)) & ((1L << (GT - 81)) | (1L << (LT - 81)) | (1L << (LE - 81)) | (1L << (GE - 81)))) != 0)) ) {
_errHandler.RecoverInline(this);
}
Consume();
State = 1245; shift_expression();
}
}
State = 1250;
_errHandler.Sync(this);
_la = _input.La(1);
}
}
}
catch (RecognitionException re) {
_localctx.exception = re;
_errHandler.ReportError(this, re);
_errHandler.Recover(this, re);
}
finally {
ExitRule();
}
return _localctx;
}
