public override Expr VisitAddSub([NotNull] ExprParser.AddSubContext context)
{
return(new FunctionExpr(context.op.Type == ExprParser.PLUS ? "+" : "-")
{
Arguments = context.expr().Select(Visit).ToArray()
});
}
public override int VisitAddSub([NotNull] ExprParser.AddSubContext context)
{
int left = Visit(context.expr(0));
int right = Visit(context.expr(1));
if (context.op.Type == ExprParser.ADD)
{
return(left + right);
}
else
{
Debug.Assert(context.op.Type == ExprParser.SUB);
return(left - right);
}
}
public override Expression VisitAddSub(ExprParser.AddSubContext context)
{
Expression left = Visit(context.expression(0));
Expression right = Visit(context.expression(1));
Expression e = new Expression(context.op.Text);
e.AddOperand(left);
e.AddOperand(right);
if (context.op.Type == ExprParser.ADD)
{
e.Operation = Operation.ADD;
}
else if (context.op.Type == ExprParser.SUB)
{
e.Operation = Operation.SUB;
}
return(e);
}
