public override void VisitAdditionalFromClause(AdditionalFromClause fromClause, QueryModel queryModel, int index)
{
var innerExpression
= ReplaceClauseReferences(
CreateQueryingExpressionTreeVisitor(this)
.VisitExpression(fromClause.FromExpression));
var itemParameter
= Expression.Parameter(fromClause.ItemType);
var scopeCreatorExpression
= QuerySourceScope
.Create(fromClause, itemParameter, _querySourceScopeParameter);
_expression
= Expression.Call(
_linqOperatorProvider.SelectMany
.MakeGenericMethod(typeof(QuerySourceScope), typeof(QuerySourceScope)),
_expression,
Expression.Lambda(
Expression.Call(
_linqOperatorProvider.Select
.MakeGenericMethod(fromClause.ItemType, typeof(QuerySourceScope)),
innerExpression,
Expression.Lambda(
scopeCreatorExpression,
new[] { itemParameter })),
new[] { _querySourceScopeParameter }));
_querySourceMapping.AddMapping(
fromClause,
QuerySourceScope.GetResult(_querySourceScopeParameter, fromClause));
}
public override void VisitMainFromClause(
[NotNull] MainFromClause fromClause, [NotNull] QueryModel queryModel)
{
Check.NotNull(fromClause, "fromClause");
Check.NotNull(queryModel, "queryModel");
_expression
= ReplaceClauseReferences(
CreateQueryingExpressionTreeVisitor(fromClause)
.VisitExpression(fromClause.FromExpression));
var sequenceType = _expression.Type.GetSequenceType();
var elementScoped
= sequenceType.IsConstructedGenericType &&
sequenceType.GetGenericTypeDefinition() == typeof(QuerySourceScope <>);
Type elementType;
if (elementScoped)
{
elementType = sequenceType.GetTypeInfo().GenericTypeArguments[0];
}
else
{
elementType = sequenceType;
var itemParameter = Expression.Parameter(elementType);
_expression
= Expression.Call(
_queryCompilationContext.LinqOperatorProvider.Select
.MakeGenericMethod(elementType, typeof(QuerySourceScope)),
_expression,
Expression.Lambda(
QuerySourceScope
.Create(fromClause, itemParameter, QuerySourceScopeParameter),
new[] { itemParameter }));
}
_expression
= Expression.Call(
_queryCompilationContext.LinqOperatorProvider.SelectMany
.MakeGenericMethod(typeof(QuerySourceScope), typeof(QuerySourceScope)),
Expression.Call(
_queryCompilationContext.LinqOperatorProvider.ToSequence
.MakeGenericMethod(typeof(QuerySourceScope)),
QuerySourceScopeParameter),
Expression.Lambda(_expression,
new[] { QuerySourceScopeParameter }));
_querySourceMapping.AddMapping(
fromClause,
QuerySourceScope.GetResult(QuerySourceScopeParameter, fromClause, elementType));
}
public override void VisitGroupJoinClause(
[NotNull] GroupJoinClause groupJoinClause, [NotNull] QueryModel queryModel, int index)
{
Check.NotNull(groupJoinClause, "groupJoinClause");
Check.NotNull(queryModel, "queryModel");
var innerSequenceExpression
= ReplaceClauseReferences(
CreateQueryingExpressionTreeVisitor(groupJoinClause.JoinClause)
.VisitExpression(groupJoinClause.JoinClause.InnerSequence));
var innerElementType
= innerSequenceExpression.Type.GetSequenceType();
var itemParameter
= Expression.Parameter(innerElementType);
_querySourceMapping.AddMapping(groupJoinClause.JoinClause, itemParameter);
var outerKeySelector
= ReplaceClauseReferences(
CreateQueryingExpressionTreeVisitor(groupJoinClause)
.VisitExpression(groupJoinClause.JoinClause.OuterKeySelector));
var innerKeySelector
= ReplaceClauseReferences(
CreateQueryingExpressionTreeVisitor(groupJoinClause)
.VisitExpression(groupJoinClause.JoinClause.InnerKeySelector));
var itemsParameter
= Expression.Parameter(innerSequenceExpression.Type);
var scopeCreatorExpression
= QuerySourceScope
.Create(groupJoinClause, itemsParameter, _querySourceScopeParameter);
_expression
= Expression.Call(
_queryCompilationContext.LinqOperatorProvider.GroupJoin.MakeGenericMethod(
typeof(QuerySourceScope),
innerElementType,
outerKeySelector.Type,
typeof(QuerySourceScope)),
_expression,
innerSequenceExpression,
Expression.Lambda(outerKeySelector, _querySourceScopeParameter),
Expression.Lambda(innerKeySelector, itemParameter),
Expression.Lambda(
scopeCreatorExpression,
new[] { _querySourceScopeParameter, itemsParameter }));
_querySourceMapping.AddMapping(
groupJoinClause,
QuerySourceScope.GetResult(_querySourceScopeParameter, groupJoinClause, innerSequenceExpression.Type));
}
public override void VisitMainFromClause(
[NotNull] MainFromClause fromClause, [NotNull] QueryModel queryModel)
{
Check.NotNull(fromClause, "fromClause");
Check.NotNull(queryModel, "queryModel");
_expression
= ReplaceClauseReferences(fromClause.FromExpression, fromClause);
var sequenceType = _expression.Type.GetSequenceType();
var elementScoped
= sequenceType.IsConstructedGenericType &&
sequenceType.GetGenericTypeDefinition() == typeof(QuerySourceScope <>);
Type elementType;
if (elementScoped)
{
elementType = sequenceType.GetTypeInfo().GenericTypeArguments[0];
}
else
{
elementType = sequenceType;
_expression = CreateScope(_expression, elementType, fromClause);
}
_expression
= Expression.Call(
LinqOperatorProvider.SelectMany
.MakeGenericMethod(typeof(QuerySourceScope), typeof(QuerySourceScope)),
Expression.Call(
LinqOperatorProvider.ToSequence
.MakeGenericMethod(typeof(QuerySourceScope)),
QuerySourceScopeParameter),
Expression.Lambda(_expression,
new[] { QuerySourceScopeParameter }));
_querySourceMapping.AddMapping(
fromClause,
QuerySourceScope.GetResult(QuerySourceScopeParameter, fromClause, elementType));
if (fromClause.ItemType.GetTypeInfo().IsGenericType &&
fromClause.ItemType.GetTypeInfo().GetGenericTypeDefinition() == typeof(IGrouping <,>))
{
queryModel.TransformExpressions(ReplaceClauseReferences);
}
}
public override void VisitGroupJoinClause(GroupJoinClause groupJoinClause, QueryModel queryModel, int index)
{
var itemParameter
= Expression.Parameter(groupJoinClause.JoinClause.ItemType);
_querySourceMapping.AddMapping(groupJoinClause.JoinClause, itemParameter);
var innerSequence
= ReplaceClauseReferences(
CreateQueryingExpressionTreeVisitor(null)
.VisitExpression(groupJoinClause.JoinClause.InnerSequence));
var outerKeySelector
= ReplaceClauseReferences(
CreateQueryingExpressionTreeVisitor(this)
.VisitExpression(groupJoinClause.JoinClause.OuterKeySelector));
var innerKeySelector
= ReplaceClauseReferences(
CreateQueryingExpressionTreeVisitor(this)
.VisitExpression(groupJoinClause.JoinClause.InnerKeySelector));
var itemsParameter
= Expression.Parameter(groupJoinClause.ItemType);
var scopeCreatorExpression
= QuerySourceScope
.Create(groupJoinClause, itemsParameter, _querySourceScopeParameter);
_expression
= Expression.Call(
_linqOperatorProvider.GroupJoin.MakeGenericMethod(
typeof(QuerySourceScope),
groupJoinClause.JoinClause.ItemType,
outerKeySelector.Type,
typeof(QuerySourceScope)),
_expression,
innerSequence,
Expression.Lambda(outerKeySelector, _querySourceScopeParameter),
Expression.Lambda(innerKeySelector, itemParameter),
Expression.Lambda(
scopeCreatorExpression,
new[] { _querySourceScopeParameter, itemsParameter }));
_querySourceMapping.AddMapping(
groupJoinClause,
QuerySourceScope.GetResult(_querySourceScopeParameter, groupJoinClause));
}
public override void VisitMainFromClause(
[NotNull] MainFromClause fromClause, [NotNull] QueryModel queryModel)
{
Check.NotNull(fromClause, nameof(fromClause));
Check.NotNull(queryModel, nameof(queryModel));
_expression
= ReplaceClauseReferences(fromClause.FromExpression, fromClause);
var sequenceType = _expression.Type.GetSequenceType();
var elementScoped
= sequenceType.IsConstructedGenericType &&
sequenceType.GetGenericTypeDefinition() == typeof(QuerySourceScope <>);
Type elementType;
if (elementScoped)
{
elementType = sequenceType.GetTypeInfo().GenericTypeArguments[0];
}
else
{
elementType = sequenceType;
_expression = CreateScope(_expression, elementType, fromClause);
}
_expression
= Expression.Call(
LinqOperatorProvider.SelectMany
.MakeGenericMethod(typeof(QuerySourceScope), typeof(QuerySourceScope)),
Expression.Call(
LinqOperatorProvider.ToSequence
.MakeGenericMethod(typeof(QuerySourceScope)),
QuerySourceScopeParameter),
Expression.Lambda(_expression, QuerySourceScopeParameter));
var querySourceMapping = _queryCompilationContext.QuerySourceMapping;
if (!querySourceMapping.ContainsMapping(fromClause))
{
querySourceMapping.AddMapping(
fromClause,
QuerySourceScope.GetResult(QuerySourceScopeParameter, fromClause, elementType));
}
}
public override void VisitMainFromClause(
[NotNull] MainFromClause fromClause, [NotNull] QueryModel queryModel)
{
Check.NotNull(fromClause, "fromClause");
Check.NotNull(queryModel, "queryModel");
_expression
= ReplaceClauseReferences(
CreateQueryingExpressionTreeVisitor(fromClause)
.VisitExpression(fromClause.FromExpression));
var elementType = _expression.Type.GetSequenceType();
var itemParameter
= Expression.Parameter(elementType);
var scopeCreatorExpression
= QuerySourceScope
.Create(fromClause, itemParameter, _querySourceScopeParameter);
_expression
= Expression.Call(
_queryCompilationContext.LinqOperatorProvider.SelectMany
.MakeGenericMethod(typeof(QuerySourceScope), typeof(QuerySourceScope)),
Expression.Call(
_queryCompilationContext.LinqOperatorProvider.ToSequence
.MakeGenericMethod(typeof(QuerySourceScope)),
_querySourceScopeParameter),
Expression.Lambda(
Expression.Call(
_queryCompilationContext.LinqOperatorProvider.Select
.MakeGenericMethod(elementType, typeof(QuerySourceScope)),
_expression,
Expression.Lambda(
scopeCreatorExpression,
new[] { itemParameter })),
new[] { _querySourceScopeParameter }));
_querySourceMapping.AddMapping(
fromClause,
QuerySourceScope.GetResult(_querySourceScopeParameter, fromClause, elementType));
}
public override void VisitAdditionalFromClause(
[NotNull] AdditionalFromClause fromClause, [NotNull] QueryModel queryModel, int index)
{
Check.NotNull(fromClause, "fromClause");
Check.NotNull(queryModel, "queryModel");
var innerExpression
= ReplaceClauseReferences(fromClause.FromExpression, fromClause);
var innerSequenceType = innerExpression.Type.GetSequenceType();
var innerElementScoped
= innerSequenceType.IsConstructedGenericType &&
innerSequenceType.GetGenericTypeDefinition() == typeof(QuerySourceScope <>);
Type innerElementType;
if (innerElementScoped)
{
innerElementType
= innerSequenceType.GetTypeInfo().GenericTypeArguments[0];
}
else
{
innerElementType = innerSequenceType;
innerExpression = CreateScope(innerExpression, innerElementType, fromClause);
}
_expression
= Expression.Call(
LinqOperatorProvider.SelectMany
.MakeGenericMethod(typeof(QuerySourceScope), typeof(QuerySourceScope)),
_expression,
Expression.Lambda(
innerExpression,
new[] { QuerySourceScopeParameter }));
_querySourceMapping.AddMapping(
fromClause,
QuerySourceScope.GetResult(QuerySourceScopeParameter, fromClause, innerElementType));
}
public override void VisitMainFromClause(MainFromClause fromClause, QueryModel queryModel)
{
_expression
= ReplaceClauseReferences(
CreateQueryingExpressionTreeVisitor(this)
.VisitExpression(fromClause.FromExpression));
var itemParameter
= Expression.Parameter(fromClause.ItemType);
var parentScopeExpression
= _parentQueryModelVisitor == null
? (Expression)Expression.Default(typeof(QuerySourceScope))
: _querySourceScopeParameter;
var scopeCreatorExpression
= QuerySourceScope
.Create(fromClause, itemParameter, parentScopeExpression);
_expression
= Expression.Call(
_linqOperatorProvider.SelectMany
.MakeGenericMethod(typeof(QuerySourceScope), typeof(QuerySourceScope)),
Expression.Call(
_linqOperatorProvider.ToSequence.MakeGenericMethod(typeof(QuerySourceScope)),
parentScopeExpression),
Expression.Lambda(
Expression.Call(
_linqOperatorProvider.Select
.MakeGenericMethod(fromClause.ItemType, typeof(QuerySourceScope)),
_expression,
Expression.Lambda(
scopeCreatorExpression,
new[] { itemParameter })),
new[] { _querySourceScopeParameter }));
_querySourceMapping.AddMapping(
fromClause,
QuerySourceScope.GetResult(_querySourceScopeParameter, fromClause));
}
public override void VisitGroupJoinClause(
[NotNull] GroupJoinClause groupJoinClause, [NotNull] QueryModel queryModel, int index)
{
Check.NotNull(groupJoinClause, "groupJoinClause");
Check.NotNull(queryModel, "queryModel");
var outerKeySelector
= ReplaceClauseReferences(groupJoinClause.JoinClause.OuterKeySelector, groupJoinClause);
var innerExpression
= ReplaceClauseReferences(groupJoinClause.JoinClause.InnerSequence, groupJoinClause.JoinClause);
var innerSequenceType
= innerExpression.Type.GetSequenceType();
var innerItemParameter
= Expression.Parameter(innerSequenceType);
var innerElementScoped
= innerSequenceType.IsConstructedGenericType &&
innerSequenceType.GetGenericTypeDefinition() == typeof(QuerySourceScope <>);
Type innerElementType;
if (innerElementScoped)
{
innerElementType = innerSequenceType.GetTypeInfo().GenericTypeArguments[0];
_querySourceMapping.AddMapping(
groupJoinClause.JoinClause,
QuerySourceScope.GetResult(innerItemParameter, groupJoinClause.JoinClause, innerElementType));
}
else
{
innerElementType = innerSequenceType;
_querySourceMapping.AddMapping(groupJoinClause.JoinClause, innerItemParameter);
}
var innerKeySelector
= ReplaceClauseReferences(groupJoinClause.JoinClause.InnerKeySelector, groupJoinClause);
var innerItemsParameter
= Expression.Parameter(innerExpression.Type);
_expression
= Expression.Call(
LinqOperatorProvider.GroupJoin.MakeGenericMethod(
typeof(QuerySourceScope),
innerSequenceType,
outerKeySelector.Type,
typeof(QuerySourceScope)),
_expression,
innerExpression,
Expression.Lambda(outerKeySelector, QuerySourceScopeParameter),
Expression.Lambda(innerKeySelector, innerItemParameter),
Expression.Lambda(
QuerySourceScope
.Create(
groupJoinClause,
innerElementScoped
? Expression.Call(
LinqOperatorProvider.Select
.MakeGenericMethod(
innerSequenceType,
innerElementType),
innerItemsParameter,
Expression.Lambda(
QuerySourceScope.GetResult(
innerItemParameter,
groupJoinClause.JoinClause,
innerElementType),
innerItemParameter))
: (Expression)innerItemsParameter,
QuerySourceScopeParameter),
QuerySourceScopeParameter, innerItemsParameter));
var expressionTypeInfo = _expression.Type.GetTypeInfo();
_querySourceMapping.AddMapping(
groupJoinClause,
QuerySourceScope
.GetResult(
QuerySourceScopeParameter,
groupJoinClause,
expressionTypeInfo.GetGenericTypeDefinition()
.MakeGenericType(innerElementType)));
if (expressionTypeInfo.GetGenericTypeDefinition() == typeof(IAsyncEnumerable <>))
{
queryModel.TransformExpressions(ReplaceClauseReferences);
}
}
public override void VisitJoinClause(
[NotNull] JoinClause joinClause, [NotNull] QueryModel queryModel, int index)
{
Check.NotNull(joinClause, "joinClause");
Check.NotNull(queryModel, "queryModel");
var outerKeySelector
= ReplaceClauseReferences(joinClause.OuterKeySelector, joinClause);
var innerSequenceExpression
= ReplaceClauseReferences(joinClause.InnerSequence, joinClause);
var innerSequenceType
= innerSequenceExpression.Type.GetSequenceType();
var innerItemParameter
= Expression.Parameter(innerSequenceType);
var innerElementScoped
= innerSequenceType.IsConstructedGenericType &&
innerSequenceType.GetGenericTypeDefinition() == typeof(QuerySourceScope <>);
Type innerElementType;
if (innerElementScoped)
{
innerElementType = innerSequenceType.GetTypeInfo().GenericTypeArguments[0];
_querySourceMapping.AddMapping(
joinClause,
QuerySourceScope.GetResult(innerItemParameter, joinClause, innerElementType));
}
else
{
innerElementType = innerSequenceType;
_querySourceMapping.AddMapping(joinClause, innerItemParameter);
}
var innerKeySelector
= ReplaceClauseReferences(joinClause.InnerKeySelector, joinClause);
_expression
= Expression.Call(
LinqOperatorProvider.Join.MakeGenericMethod(
typeof(QuerySourceScope),
innerSequenceType,
outerKeySelector.Type,
typeof(QuerySourceScope)),
_expression,
innerSequenceExpression,
Expression.Lambda(outerKeySelector, QuerySourceScopeParameter),
Expression.Lambda(innerKeySelector, innerItemParameter),
Expression.Lambda(
QuerySourceScope
.Create(
joinClause,
innerElementScoped
? QuerySourceScope.GetResult(innerItemParameter, joinClause, innerElementType)
: innerItemParameter,
QuerySourceScopeParameter),
QuerySourceScopeParameter, innerItemParameter));
_querySourceMapping.ReplaceMapping(
joinClause,
QuerySourceScope.GetResult(QuerySourceScopeParameter, joinClause, innerElementType));
}
private TResult GetResult <TResult>(IQuerySource querySource)
{
return(_querySource == querySource
? ((TypedScope <TResult>) this)._result
: _parentScope.GetResult <TResult>(querySource));
}
public virtual object GetResult([NotNull] IQuerySource querySource)
=> _querySource == querySource
? UntypedResult
: _parentScope.GetResult(querySource);