/// <summary>
/// This is an internal API that supports the Entity Framework Core infrastructure and not subject to
/// the same compatibility standards as public APIs. It may be changed or removed without notice in
/// any release. You should only use it directly in your code with extreme caution and knowing that
/// doing so can result in application failures when updating to a new Entity Framework Core release.
/// </summary>
protected override Expression VisitMethodCall(MethodCallExpression methodCallExpression)
{
Check.NotNull(methodCallExpression, nameof(methodCallExpression));
if (methodCallExpression.TryGetEFPropertyArguments(out var source, out var propertyName))
{
return(TryBindMember(source, MemberIdentity.Create(propertyName), out var result)
? result
: null);
}
if (TranslationFailed(methodCallExpression.Object, Visit(methodCallExpression.Object), out var sqlObject))
{
return(null);
}
var arguments = new SqlExpression[methodCallExpression.Arguments.Count];
for (var i = 0; i < arguments.Length; i++)
{
var argument = methodCallExpression.Arguments[i];
if (TranslationFailed(argument, Visit(argument), out var sqlArgument))
{
return(null);
}
arguments[i] = sqlArgument;
}
return(_methodCallTranslatorProvider.Translate(_model, sqlObject, methodCallExpression.Method, arguments));
}
protected override Expression VisitMethodCall(MethodCallExpression methodCallExpression)
{
if (methodCallExpression.Method.IsEFPropertyMethod())
{
if (Visit(methodCallExpression.Arguments[0]) is EntityShaperExpression entityShaper)
{
var entityType = entityShaper.EntityType;
var property = entityType.FindProperty((string)((ConstantExpression)methodCallExpression.Arguments[1]).Value);
return(_selectExpression.BindProperty(entityShaper.ValueBufferExpression, property));
}
else
{
throw new InvalidOperationException();
}
}
var @object = (SqlExpression)Visit(methodCallExpression.Object);
var failed = TranslationFailed(methodCallExpression.Object, @object);
var arguments = new SqlExpression[methodCallExpression.Arguments.Count];
for (var i = 0; i < arguments.Length; i++)
{
arguments[i] = (SqlExpression)Visit(methodCallExpression.Arguments[i]);
failed |= (methodCallExpression.Arguments[i] != null && arguments[i] == null);
}
return(failed
? null
: _methodCallTranslatorProvider.Translate(_model, @object, methodCallExpression.Method, arguments));
}
/// <summary>
/// This is an internal API that supports the Entity Framework Core infrastructure and not subject to
/// the same compatibility standards as public APIs. It may be changed or removed without notice in
/// any release. You should only use it directly in your code with extreme caution and knowing that
/// doing so can result in application failures when updating to a new Entity Framework Core release.
/// </summary>
protected override Expression VisitMethodCall(MethodCallExpression methodCallExpression)
{
if (methodCallExpression.TryGetEFPropertyArguments(out var source, out var propertyName))
{
return(TryBindMember(Visit(source), MemberIdentity.Create(propertyName), out var result)
? result
: null);
}
var @object = Visit(methodCallExpression.Object);
if (TranslationFailed(methodCallExpression.Object, @object))
{
return(null);
}
var arguments = new SqlExpression[methodCallExpression.Arguments.Count];
for (var i = 0; i < arguments.Length; i++)
{
var argument = Visit(methodCallExpression.Arguments[i]);
if (TranslationFailed(methodCallExpression.Arguments[i], argument))
{
return(null);
}
arguments[i] = (SqlExpression)argument;
}
return(_methodCallTranslatorProvider.Translate(_model, (SqlExpression)@object, methodCallExpression.Method, arguments));
}
/// <summary>
/// This is an internal API that supports the Entity Framework Core infrastructure and not subject to
/// the same compatibility standards as public APIs. It may be changed or removed without notice in
/// any release. You should only use it directly in your code with extreme caution and knowing that
/// doing so can result in application failures when updating to a new Entity Framework Core release.
/// </summary>
protected override Expression VisitMethodCall(MethodCallExpression methodCallExpression)
{
if (methodCallExpression.TryGetEFPropertyArguments(out var source, out var propertyName))
{
if (!TryBindMember(Visit(source), MemberIdentity.Create(propertyName), out var result))
{
throw new InvalidOperationException($"Property {propertyName} not found on {source}");
}
return(result);
}
//if (methodCallExpression.Method.DeclaringType == typeof(Queryable))
//{
// var translation = _queryableMethodTranslatingExpressionVisitor.TranslateSubquery(methodCallExpression);
// var subquery = (SelectExpression)translation.QueryExpression;
// subquery.ApplyProjection();
// if (methodCallExpression.Method.Name == nameof(Queryable.Any)
// || methodCallExpression.Method.Name == nameof(Queryable.All)
// || methodCallExpression.Method.Name == nameof(Queryable.Contains))
// {
// if (subquery.Tables.Count == 0
// && subquery.Projection.Count == 1)
// {
// return subquery.Projection[0].Expression;
// }
// throw new InvalidOperationException();
// }
// return new SubSelectExpression(subquery);
//}
var @object = Visit(methodCallExpression.Object);
if (TranslationFailed(methodCallExpression.Object, @object))
{
return(null);
}
var arguments = new SqlExpression[methodCallExpression.Arguments.Count];
for (var i = 0; i < arguments.Length; i++)
{
var argument = Visit(methodCallExpression.Arguments[i]);
if (TranslationFailed(methodCallExpression.Arguments[i], argument))
{
return(null);
}
arguments[i] = (SqlExpression)argument;
}
return(_methodCallTranslatorProvider.Translate(_model, (SqlExpression)@object, methodCallExpression.Method, arguments));
}
protected override Expression VisitMethodCall(MethodCallExpression methodCallExpression)
{
if (methodCallExpression.TryGetEFPropertyArguments(out var source, out var propertyName))
{
return(BindProperty(source, propertyName));
}
var subqueryTranslation = _queryableMethodTranslatingExpressionVisitor.TranslateSubquery(methodCallExpression);
if (subqueryTranslation != null)
{
if (subqueryTranslation.ResultType == ResultType.Enumerable)
{
return(null);
}
var subquery = (SelectExpression)subqueryTranslation.QueryExpression;
subquery.ApplyProjection();
if (subquery.Projection.Count != 1)
{
return(null);
}
if ((methodCallExpression.Method.Name == nameof(Queryable.Any) ||
methodCallExpression.Method.Name == nameof(Queryable.All) ||
methodCallExpression.Method.Name == nameof(Queryable.Contains)) &&
subquery.Tables.Count == 0)
{
return(subquery.Projection[0].Expression);
}
return(new SubSelectExpression(subquery));
}
var @object = Visit(methodCallExpression.Object);
if (TranslationFailed(methodCallExpression.Object, @object))
{
return(null);
}
var arguments = new SqlExpression[methodCallExpression.Arguments.Count];
for (var i = 0; i < arguments.Length; i++)
{
var argument = Visit(methodCallExpression.Arguments[i]);
if (TranslationFailed(methodCallExpression.Arguments[i], argument))
{
return(null);
}
arguments[i] = (SqlExpression)argument;
}
return(_methodCallTranslatorProvider.Translate(_model, (SqlExpression)@object, methodCallExpression.Method, arguments));
}
protected override Expression VisitMethodCall(MethodCallExpression methodCallExpression)
{
if (methodCallExpression.TryGetEFPropertyArguments(out var source, out var propertyName))
{
Type convertedType = null;
if (source is UnaryExpression unaryExpression &&
unaryExpression.NodeType == ExpressionType.Convert)
{
source = unaryExpression.Operand;
if (unaryExpression.Type != typeof(object))
{
convertedType = unaryExpression.Type;
}
}
if (source is EntityShaperExpression entityShaper)
{
var entityType = entityShaper.EntityType;
if (convertedType != null)
{
entityType = entityType.RootType().GetDerivedTypesInclusive()
.FirstOrDefault(et => et.ClrType == convertedType);
}
if (entityType != null)
{
var property = entityType.FindProperty(propertyName);
return(BindProperty(entityShaper, property));
}
}
throw new InvalidOperationException();
}
if (methodCallExpression.Method.DeclaringType == typeof(Queryable))
{
var translation = _queryableMethodTranslatingExpressionVisitor.TranslateSubquery(methodCallExpression);
var subquery = (SelectExpression)translation.QueryExpression;
subquery.ApplyProjection();
if (methodCallExpression.Method.Name == nameof(Queryable.Any) ||
methodCallExpression.Method.Name == nameof(Queryable.All) ||
methodCallExpression.Method.Name == nameof(Queryable.Contains))
{
if (subquery.Tables.Count == 0 &&
subquery.Projection.Count == 1)
{
return(subquery.Projection[0].Expression);
}
else
{
throw new InvalidOperationException();
}
}
else
{
return(new SubSelectExpression(subquery));
}
}
var @object = Visit(methodCallExpression.Object);
if (TranslationFailed(methodCallExpression.Object, @object))
{
return(null);
}
var arguments = new SqlExpression[methodCallExpression.Arguments.Count];
for (var i = 0; i < arguments.Length; i++)
{
var argument = Visit(methodCallExpression.Arguments[i]);
if (TranslationFailed(methodCallExpression.Arguments[i], argument))
{
return(null);
}
arguments[i] = (SqlExpression)argument;
}
return(_methodCallTranslatorProvider.Translate(_model, (SqlExpression)@object, methodCallExpression.Method, arguments));
}
protected override Expression VisitMethodCall(MethodCallExpression methodCallExpression)
{
if (methodCallExpression.Method.IsEFPropertyMethod())
{
var firstArgument = methodCallExpression.Arguments[0];
// In certain cases EF.Property would have convert node around the source.
if (firstArgument is UnaryExpression unaryExpression &&
unaryExpression.NodeType == ExpressionType.Convert &&
unaryExpression.Type == typeof(object))
{
firstArgument = unaryExpression.Operand;
}
if (firstArgument is EntityShaperExpression entityShaper)
{
return(BindProperty(entityShaper, (string)((ConstantExpression)methodCallExpression.Arguments[1]).Value));
}
else
{
throw new InvalidOperationException();
}
}
if (methodCallExpression.Method.DeclaringType == typeof(Queryable))
{
var translation = _queryableMethodTranslatingExpressionVisitorFactory.Create(_model).Visit(methodCallExpression);
if (translation is ShapedQueryExpression shapedQuery)
{
var subquery = (SelectExpression)shapedQuery.QueryExpression;
subquery.ApplyProjection();
if (methodCallExpression.Method.Name == nameof(Queryable.Any) ||
methodCallExpression.Method.Name == nameof(Queryable.All) ||
methodCallExpression.Method.Name == nameof(Queryable.Contains))
{
if (subquery.Tables.Count == 0 &&
subquery.Projection.Count == 1)
{
return(subquery.Projection[0].Expression);
}
else
{
throw new InvalidOperationException();
}
}
else
{
return(new SubSelectExpression(subquery));
}
}
else
{
throw new InvalidOperationException();
}
}
var @object = (SqlExpression)Visit(methodCallExpression.Object);
var failed = TranslationFailed(methodCallExpression.Object, @object);
var arguments = new SqlExpression[methodCallExpression.Arguments.Count];
for (var i = 0; i < arguments.Length; i++)
{
arguments[i] = (SqlExpression)Visit(methodCallExpression.Arguments[i]);
failed |= (methodCallExpression.Arguments[i] != null && arguments[i] == null);
}
return(failed
? null
: _methodCallTranslatorProvider.Translate(_model, @object, methodCallExpression.Method, arguments));
}