public void Transform(SelectClause selectClause)
{
// The select clause typically requires joins for non-Identifier member access
_requiresJoinForNonIdentifier = true;
selectClause.TransformExpressions(Visit);
_requiresJoinForNonIdentifier = false;
}
public override void VisitSelectClause(SelectClause selectClause, QueryModel queryModel)
{
var newSelector = _subqueryInjector.Visit(selectClause.Selector);
selectClause.Selector = newSelector;
selectClause.TransformExpressions(TransformingVisitor.Visit);
}
public void TransformExpressions()
{
var oldExpression = ExpressionHelper.CreateExpression();
var newExpression = ExpressionHelper.CreateExpression();
var clause = new SelectClause(oldExpression);
clause.TransformExpressions(ex =>
{
Assert.That(ex, Is.SameAs(oldExpression));
return(newExpression);
});
Assert.That(clause.Selector, Is.SameAs(newExpression));
}
/// <summary>
/// Transforms all the expressions in this <see cref="QueryModel"/>'s clauses via the given <paramref name="transformation"/> delegate.
/// </summary>
/// <param name="transformation">The transformation object. This delegate is called for each <see cref="Expression"/> within this
/// <see cref="QueryModel"/>, and those expressions will be replaced with what the delegate returns.</param>
public void TransformExpressions(Func <Expression, Expression> transformation)
{
MainFromClause.TransformExpressions(transformation);
foreach (var bodyClause in BodyClauses)
{
bodyClause.TransformExpressions(transformation);
}
SelectClause.TransformExpressions(transformation);
foreach (var resultOperator in ResultOperators)
{
resultOperator.TransformExpressions(transformation);
}
}
/// <summary>
/// Transforms all the expressions in this <see cref="QueryModel"/>'s clauses via the given <paramref name="transformation"/> delegate.
/// </summary>
/// <param name="transformation">The transformation object. This delegate is called for each <see cref="Expression"/> within this
/// <see cref="QueryModel"/>, and those expressions will be replaced with what the delegate returns.</param>
public void TransformExpressions(Func <Expression, Expression> transformation)
{
ArgumentUtility.CheckNotNull("transformation", transformation);
MainFromClause.TransformExpressions(transformation);
foreach (var bodyClause in BodyClauses)
{
bodyClause.TransformExpressions(transformation);
}
SelectClause.TransformExpressions(transformation);
foreach (var resultOperator in ResultOperators)
{
resultOperator.TransformExpressions(transformation);
}
}
/// <summary> /// This API supports the Entity Framework Core infrastructure and is not intended to be used /// directly from your code. This API may change or be removed in future releases. /// </summary> public override void VisitSelectClause(SelectClause selectClause, QueryModel queryModel) => selectClause.TransformExpressions(TransformingVisitor.Visit);
public override void VisitSelectClause(SelectClause selectClause, QueryModel queryModel)
{
selectClause.TransformExpressions(e => MergeAggregatingResultsInExpressionRewriter.Rewrite(e, new NameGenerator(queryModel)));
}
public override void VisitSelectClause(SelectClause selectClause, QueryModel queryModel)
{
selectClause.TransformExpressions(MergeAggregatingResultsInExpressionRewriter.Rewrite);
}
public override void VisitSelectClause(SelectClause selectClause, QueryModel queryModel)
{
selectClause.TransformExpressions(e => MergeAggregatingResultsInExpressionRewriter.Rewrite(e, new NameGenerator(queryModel)));
}
public void Transform(SelectClause selectClause)
{
selectClause.TransformExpressions(VisitExpression);
}
public void Transform(SelectClause selectClause)
{
_requiresJoinForNonIdentifier = true;
selectClause.TransformExpressions(VisitExpression);
_requiresJoinForNonIdentifier = false;
}
public override void VisitSelectClause(SelectClause selectClause, QueryModel queryModel)
{
selectClause.TransformExpressions(_innerVisitor.Visit);
}