public override AttributeDefinition VisitAttribute_name_part(V1QueryParser.Attribute_name_partContext context)
{
var attributeName = context.NAME().GetText();
var downcast = context.downcast()?.asset_type_token().GetText();
var filter = context.attribute_filter();
AttributeDefinition result;
if (!_metaModel.TryGetAttributeDefinition(_rootAssetType, attributeName, out result))
{
throw new InvalidOperationException($"Cannot find attribute definition {_rootAssetType.Token}.{attributeName}");
}
if (!string.IsNullOrEmpty(downcast))
{
var downcastAssetType = _metaModel.GetAssetType(downcast);
result = result.CreateDowncastAttributeDefinition(downcastAssetType);
}
if (filter != null)
{
var subVisitor = new FilterVisitor(result.RelatedAssetType, _metaModel);
var subFilter = subVisitor.Visit(filter);
result = result.CreateFilteredAttributeDefinition(subFilter);
}
return(result);
}
/// <summary>
/// Exit a parse tree produced by <see cref="V1QueryParser.attribute_name_part"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitAttribute_name_part([NotNull] V1QueryParser.Attribute_name_partContext context)
{
}
/// <summary>
/// Visit a parse tree produced by <see cref="V1QueryParser.attribute_name_part"/>.
/// <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 VisitAttribute_name_part([NotNull] V1QueryParser.Attribute_name_partContext context)
{
return(VisitChildren(context));
}
