public override Expr VisitFilterExpr([NotNull] JPathParser.FilterExprContext context)
{
var lhs = context.Lhs.Accept(this);
var filter = context.Filter.Accept(this);
return((filter is IntLit || filter is VarExpr)
? (Expr) new RangeExpr(lhs, begin: filter, end: filter)
: (Expr) new FilterExpr(lhs: lhs, filter: filter));
}
/// <summary>
/// Visit a parse tree produced by the <c>FilterExpr</c>
/// labeled alternative in <see cref="JPathParser.expr"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitFilterExpr([NotNull] JPathParser.FilterExprContext context)
{
return(VisitChildren(context));
}
public override Expr VisitFilterExpr([NotNull] JPathParser.FilterExprContext context)
{
return(new FilterExpr(lhs: context.Lhs.Accept(this), filter: context.Filter.Accept(this)));
}
/// <summary>
/// Exit a parse tree produced by the <c>FilterExpr</c>
/// labeled alternative in <see cref="JPathParser.expr"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitFilterExpr([NotNull] JPathParser.FilterExprContext context)
{
}
