private bool TryResolveQueryableSuorceInConstantQueryArgument(object?value, out ConstantQueryArgument?newConstantQueryArgument)
{
if (value is ConstantQueryArgument constantQueryArgument)
{
var hasChanged = false;
var tempConstantQueryArgument = new ConstantQueryArgument(constantQueryArgument.Value);
foreach (var property in tempConstantQueryArgument.Value.Properties.AsEmptyIfNull())
{
if (TryGetQueryableByQueryableResourceDescriptor(property.Value, out var queryable))
{
property.Value = queryable;
hasChanged = true;
}
}
if (hasChanged)
{
newConstantQueryArgument = tempConstantQueryArgument;
return(true);
}
}
newConstantQueryArgument = null;
return(false);
}
protected override ConstantExpression VisitConstant(ConstantExpression node)
{
var queryable = node.CheckNotNull(nameof(node)).Value.AsQueryableOrNull();
if (queryable != null)
{
var typeInfo = _typeInfoProvider.GetTypeInfo(queryable.ElementType);
var queryableResourceDescriptor = new QueryableResourceDescriptor(typeInfo);
return(new ConstantExpression(queryableResourceDescriptor));
}
if (node.Value is ConstantQueryArgument constantQueryArgument)
{
var newConstantQueryArgument = new ConstantQueryArgument(constantQueryArgument);
var properties = newConstantQueryArgument.Properties ?? Enumerable.Empty <Property>();
foreach (var property in properties)
{
var value = property.Value.AsQueryableOrNull();
if (value != null)
{
var typeInfo = _typeInfoProvider.GetTypeInfo(value.ElementType);
var queryableResourceDescriptor = new QueryableResourceDescriptor(typeInfo);
property.Value = queryableResourceDescriptor;
}
}
return(new ConstantExpression(newConstantQueryArgument, node.Type));
}
return(base.VisitConstant(node));
}
protected override ConstantExpression VisitConstant(ConstantExpression expression)
{
var type = expression.Type.ResolveType(_typeResolver);
if (type == typeof(QueryableResourceDescriptor) && !(expression.Value is null))
{
var queryableResourceDescriptor = (QueryableResourceDescriptor)expression.Value;
var queryableType = queryableResourceDescriptor.Type.ResolveType(_typeResolver);
var queryable = _provider(queryableType);
return(new ConstantExpression(queryable));
}
if (type == typeof(ConstantQueryArgument) && !(expression.Value is null))
{
var newConstantQueryArgument = new ConstantQueryArgument((ConstantQueryArgument)expression.Value);
var properties = newConstantQueryArgument.Properties ?? Enumerable.Empty <Property>();
foreach (var property in properties)
{
var queryableResourceDescriptor = property.Value as QueryableResourceDescriptor;
if (!(queryableResourceDescriptor is null))
{
var queryableType = queryableResourceDescriptor.Type.ResolveType(_typeResolver);
var queryable = _provider(queryableType);
property.Value = queryable;
}
}
return(new ConstantExpression(newConstantQueryArgument));
}
return(base.VisitConstant(expression));
}
protected override ConstantExpression VisitConstant(ConstantExpression expression)
{
var queryable = AsQueryableOrNull(expression.Value);
if (!(queryable is null))
{
var typeInfo = _typeInfoProvider.Get(queryable.ElementType);
var queryableResourceDescriptor = new QueryableResourceDescriptor(typeInfo);
return(new ConstantExpression(queryableResourceDescriptor));
}
var constantQueryArgument = expression.Value as ConstantQueryArgument;
if (!(constantQueryArgument is null))
{
var newConstantQueryArgument = new ConstantQueryArgument(constantQueryArgument);
var properties = newConstantQueryArgument.Properties ?? Enumerable.Empty <Property>();
foreach (var property in properties)
{
var value = AsQueryableOrNull(property.Value);
if (!(value is null))
{
var typeInfo = _typeInfoProvider.Get(value.ElementType);
var queryableResourceDescriptor = new QueryableResourceDescriptor(typeInfo);
property.Value = queryableResourceDescriptor;
}
}
return(new ConstantExpression(newConstantQueryArgument, expression.Type));
}
return(base.VisitConstant(expression));
}
protected override ConstantExpression VisitConstant(ConstantExpression expression)
{
var queryable = AsQueryableOrNull(expression.Value);
if (!ReferenceEquals(null, queryable))
{
var queryableResourceDescriptor = new QueryableResourceDescriptor(queryable.ElementType);
return(new ConstantExpression(queryableResourceDescriptor));
}
var constantQueryArgument = expression.Value as ConstantQueryArgument;
if (!ReferenceEquals(null, constantQueryArgument))
{
var newConstantQueryArgument = new ConstantQueryArgument(constantQueryArgument);
var properties = newConstantQueryArgument.Properties ?? Enumerable.Empty <Property>();
foreach (var property in properties)
{
var value = AsQueryableOrNull(property.Value);
if (!ReferenceEquals(null, value))
{
var queryableResourceDescriptor = new QueryableResourceDescriptor(value.ElementType);
property.Value = queryableResourceDescriptor;
}
}
return(new ConstantExpression(newConstantQueryArgument, expression.Type));
}
return(base.VisitConstant(expression));
}
