public Expression Translate(InMemoryQueryExpression queryExpression, Expression expression)
{
_queryExpression = queryExpression;
_clientEval = false;
_projectionMembers.Push(new ProjectionMember());
var result = Visit(expression);
if (result == null)
{
_clientEval = true;
result = Visit(expression);
_projectionMapping.Clear();
}
_queryExpression.ReplaceProjectionMapping(_projectionMapping);
_queryExpression = null;
_projectionMapping.Clear();
_projectionMembers.Clear();
return(result);
}
public InMemoryShapedQueryExpression(IEntityType entityType)
{
QueryExpression = new InMemoryQueryExpression(entityType);
ShaperExpression = new EntityShaperExpression(
entityType,
new ProjectionBindingExpression(new ProjectionMember(), typeof(ValueBuffer)),
false);
}
public Expression Translate(InMemoryQueryExpression inMemoryQueryExpression, Expression expression)
{
_inMemoryQueryExpression = inMemoryQueryExpression;
try
{
return(Visit(expression));
}
finally
{
_inMemoryQueryExpression = null;
}
}
public InMemoryShapedQueryExpression(IEntityType entityType)
{
QueryExpression = new InMemoryQueryExpression(entityType);
var resultParameter = Parameter(typeof(InMemoryQueryExpression), "result");
ShaperExpression = Lambda(new EntityShaperExpression(
entityType,
new ProjectionBindingExpression(
QueryExpression,
new ProjectionMember(),
typeof(ValueBuffer)),
false),
resultParameter);
}
protected override ShapedQueryExpression CreateShapedQueryExpression(Type elementType)
{
var entityType = _model.FindEntityType(elementType);
var queryExpression = new InMemoryQueryExpression(entityType);
return(new ShapedQueryExpression(
queryExpression,
new EntityShaperExpression(
entityType,
new ProjectionBindingExpression(
queryExpression,
new ProjectionMember(),
typeof(ValueBuffer)),
false)));
}
public Expression Translate(InMemoryQueryExpression queryExpression, Expression expression)
{
_queryExpression = queryExpression;
_projectionMembers.Push(new ProjectionMember());
var result = Visit(expression);
_queryExpression.ApplyProjection(_projectionMapping);
_queryExpression = null;
_projectionMapping.Clear();
_projectionMembers.Clear();
return(result);
}
public InMemoryProjectionBindingRemovingExpressionVisitor(InMemoryQueryExpression queryExpression)
{
_queryExpression = queryExpression;
}
private Expression TranslateExpression(
InMemoryQueryExpression inMemoryQueryExpression,
Expression expression)
{
return(_expressionTranslator.Translate(inMemoryQueryExpression, expression));
}
