public override DataApiNode VisitAliasExp(EqlGrammerParser.AliasExpContext context)
{
var name = context.alias.name.GetText();
var query = context.entity.GetText();
Expression result;
if (_selectContext == null)
{
// top level are queries on the context
var exp = EqlCompiler.Compile(query, _schemaProvider, _methodProvider).Expression;
var node = new DataApiNode(name, exp.Body, exp.Parameters.First(), null);
return(node);
}
else
{
result = EqlCompiler.CompileWith(query, _selectContext, _schemaProvider, _methodProvider).Expression.Body;
var node = new DataApiNode(name, result, null, null);
return(node);
}
}
/// <summary>
/// Visit a parse tree produced by <see cref="EqlGrammerParser.aliasExp"/>.
/// <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 VisitAliasExp([NotNull] EqlGrammerParser.AliasExpContext context)
{
return(VisitChildren(context));
}
