public override void VisitAfter(BinaryOpExpr expr)
{
if (IsPlaceHolderExpr(expr.Left))
{
expr.Left = PlaceInBinaryOp((PlaceHolderExpr)expr.Left);
}
if (IsPlaceHolderExpr(expr.Right))
{
expr.Right = PlaceInBinaryOp((PlaceHolderExpr)expr.Right);
}
}
public override void VisitAfter(BinaryOpExpr expr)
{
var right = (Expr)_stack.Pop();
var left = (Expr)_stack.Pop();
if (object.ReferenceEquals(expr.Right, right) &&
object.ReferenceEquals(expr.Left, left))
{
_stack.Push(expr);
return;
}
var node = new BinaryOpExpr(left, expr.Operator, right, expr.Comments.Clone());
_stack.Push(node);
}
virtual public void VisitOnOperator(BinaryOpExpr expr)
{
}
virtual public void VisitAfter(BinaryOpExpr expr)
{
}
virtual public void VisitBefore(BinaryOpExpr expr)
{
}
public void VisitOnOperator(BinaryOpExpr expr)
{
_visitor.VisitOnOperator(expr);
}
public void VisitAfter(BinaryOpExpr expr)
{
_visitor.VisitAfter(expr);
}
public void VisitBefore(BinaryOpExpr expr)
{
_visitor.VisitBefore(expr);
}
public override void ExitBinaryOpExpr(MiniSqlParserParser.BinaryOpExprContext context)
{
var right = (Expr)_stack.Pop();
var comments = this.GetComments(context.op);
var left = (Expr)_stack.Pop();
var opType = context.op.Type;
ExpOperator op = ExpOperator.StringConcat;
if (opType == MiniSqlParserLexer.PIPE2)
{
op = ExpOperator.StringConcat;
}
else if (opType == MiniSqlParserLexer.STAR)
{
op = ExpOperator.Mult;
}
else if (opType == MiniSqlParserLexer.DIV)
{
op = ExpOperator.Div;
}
else if (opType == MiniSqlParserLexer.MOD)
{
op = ExpOperator.Mod;
}
else if (opType == MiniSqlParserLexer.PLUS)
{
op = ExpOperator.Add;
}
else if (opType == MiniSqlParserLexer.MINUS)
{
op = ExpOperator.Sub;
}
else if (opType == MiniSqlParserLexer.LT2)
{
op = ExpOperator.LeftBitShift;
}
else if (opType == MiniSqlParserLexer.GT2)
{
op = ExpOperator.RightBitShift;
}
else if (opType == MiniSqlParserLexer.AMP)
{
op = ExpOperator.BitAnd;
}
else if (opType == MiniSqlParserLexer.PIPE)
{
op = ExpOperator.BitOr;
}
else if (opType == MiniSqlParserLexer.ARROW)
{
op = ExpOperator.GetJsonObj;
}
else if (opType == MiniSqlParserLexer.ARROW2)
{
op = ExpOperator.GetJsonObjAsText;
}
else if (opType == MiniSqlParserLexer.S_GT)
{
op = ExpOperator.GetJsonPath;
}
else if (opType == MiniSqlParserLexer.S_GT2)
{
op = ExpOperator.GetJsonPathAsText;
}
else if (opType == MiniSqlParserLexer.S_MINUS)
{
op = ExpOperator.DelJsonObj;
}
else
{
throw new InvalidEnumArgumentException("Undefined ExpOperator is used"
, (int)opType
, typeof(MiniSqlParserLexer));
}
var node = new BinaryOpExpr(left, op, right, comments);
_stack.Push(node);
}