private Expression RebindEntityMemberInit(MemberInitExpression init)
{
Debug.Assert(init != null, "init != null");
Debug.Assert(init.Bindings.Count > 0, "init.Bindings.Count > 0 -- otherwise this is just empty construction");
Expression[] expressions;
if (!this.pathBuilder.HasRewrites)
{
MemberAssignmentAnalysis propertyAnalysis = MemberAssignmentAnalysis.Analyze(
this.pathBuilder.LambdaParameterInScope,
((MemberAssignment)init.Bindings[0]).Expression);
expressions = propertyAnalysis.GetExpressionsToTargetEntity();
Debug.Assert(expressions.Length != 0, "expressions.Length != 0 -- otherwise there is no correlation to parameter in entity member init");
}
else
{
expressions = MemberAssignmentAnalysis.EmptyExpressionArray;
}
Expression entryParameterAtMemberInit = this.pathBuilder.ParameterEntryInScope;
List <string> propertyNames = new List <string>();
List <Func <object, object, Type, object> > propertyFunctions = new List <Func <object, object, Type, object> >();
Type projectedType = init.NewExpression.Type;
Expression projectedTypeExpression = Expression.Constant(projectedType, typeof(Type));
Expression entryToInitValue; Expression expectedParamValue; ParameterExpression entryParameterForMembers; ParameterExpression expectedParameterForMembers; string[] expressionNames = expressions.Skip(1).Select(e => ((MemberExpression)e).Member.Name).ToArray();
if (expressions.Length <= 1)
{
entryToInitValue = this.pathBuilder.ParameterEntryInScope;
expectedParamValue = this.pathBuilder.ExpectedParamTypeInScope;
entryParameterForMembers = (ParameterExpression)this.pathBuilder.ParameterEntryInScope;
expectedParameterForMembers = (ParameterExpression)this.pathBuilder.ExpectedParamTypeInScope;
}
else
{
entryToInitValue = this.GetDeepestEntry(expressions);
expectedParamValue = projectedTypeExpression;
entryParameterForMembers = Expression.Parameter(typeof(object), "subentry" + this.identifierId++);
expectedParameterForMembers = (ParameterExpression)this.pathBuilder.ExpectedParamTypeInScope;
ProjectionPath entryPath = new ProjectionPath(
(ParameterExpression)this.pathBuilder.LambdaParameterInScope,
this.pathBuilder.ExpectedParamTypeInScope,
this.pathBuilder.ParameterEntryInScope,
expressions.Skip(1));
this.annotations.Add(entryToInitValue, new ExpressionAnnotation()
{
Segment = entryPath[entryPath.Count - 1]
});
this.annotations.Add(entryParameterForMembers, new ExpressionAnnotation()
{
Segment = entryPath[entryPath.Count - 1]
});
this.pathBuilder.RegisterRewrite(this.pathBuilder.LambdaParameterInScope, expressionNames, entryParameterForMembers);
}
for (int i = 0; i < init.Bindings.Count; i++)
{
MemberAssignment assignment = (MemberAssignment)init.Bindings[i];
propertyNames.Add(assignment.Member.Name);
LambdaExpression propertyLambda;
if ((ClientType.CheckElementTypeIsEntity(assignment.Member.ReflectedType) &&
assignment.Expression.NodeType == ExpressionType.MemberInit))
{
Expression nestedEntry = CallMaterializer(
"ProjectionGetEntry",
entryParameterAtMemberInit,
Expression.Constant(assignment.Member.Name, typeof(string)));
ParameterExpression nestedEntryParameter = Expression.Parameter(
typeof(object),
"subentry" + this.identifierId++);
ProjectionPath entryPath;
ExpressionAnnotation entryAnnotation;
if (this.annotations.TryGetValue(this.pathBuilder.ParameterEntryInScope, out entryAnnotation))
{
entryPath = new ProjectionPath(
(ParameterExpression)this.pathBuilder.LambdaParameterInScope,
this.pathBuilder.ExpectedParamTypeInScope,
entryParameterAtMemberInit);
entryPath.AddRange(entryAnnotation.Segment.StartPath);
}
else
{
entryPath = new ProjectionPath(
(ParameterExpression)this.pathBuilder.LambdaParameterInScope,
this.pathBuilder.ExpectedParamTypeInScope,
entryParameterAtMemberInit,
expressions.Skip(1));
}
ProjectionPathSegment nestedSegment = new ProjectionPathSegment(
entryPath,
assignment.Member.Name,
assignment.Member.ReflectedType);
entryPath.Add(nestedSegment);
string[] names = (entryPath.Where(m => m.Member != null).Select(m => m.Member)).ToArray();
this.annotations.Add(nestedEntryParameter, new ExpressionAnnotation()
{
Segment = nestedSegment
});
this.pathBuilder.RegisterRewrite(this.pathBuilder.LambdaParameterInScope, names, nestedEntryParameter);
Expression e = this.Visit(assignment.Expression);
this.pathBuilder.RevokeRewrite(this.pathBuilder.LambdaParameterInScope, names);
this.annotations.Remove(nestedEntryParameter);
e = Expression.Convert(e, typeof(object));
ParameterExpression[] parameters =
new ParameterExpression[]
{
this.materializerExpression,
nestedEntryParameter,
expectedParameterForMembers,
};
propertyLambda = Expression.Lambda(e, parameters);
Expression[] nestedParams =
new Expression[]
{
this.materializerExpression,
nestedEntry,
expectedParameterForMembers,
};
var invokeParameters =
new ParameterExpression[]
{
this.materializerExpression,
(ParameterExpression)entryParameterAtMemberInit,
expectedParameterForMembers,
};
propertyLambda = Expression.Lambda(Expression.Invoke(propertyLambda, nestedParams), invokeParameters);
}
else
{
Expression e = this.Visit(assignment.Expression);
e = Expression.Convert(e, typeof(object));
ParameterExpression[] parameters =
new ParameterExpression[]
{
this.materializerExpression,
entryParameterForMembers,
expectedParameterForMembers,
};
propertyLambda = Expression.Lambda(e, parameters);
}
#if TRACE_CLIENT_PROJECTIONS
Trace.WriteLine("Compiling lambda for " + assignment.Member.Name + ": " + propertyLambda);
#endif
propertyFunctions.Add((Func <object, object, Type, object>)propertyLambda.Compile());
}
for (int i = 1; i < expressions.Length; i++)
{
this.pathBuilder.RevokeRewrite(this.pathBuilder.LambdaParameterInScope, expressionNames);
this.annotations.Remove(entryToInitValue);
this.annotations.Remove(entryParameterForMembers);
}
Expression reboundExpression = CallMaterializer(
"ProjectionInitializeEntity",
this.materializerExpression,
entryToInitValue,
expectedParamValue,
projectedTypeExpression,
Expression.Constant(propertyNames.ToArray()),
Expression.Constant(propertyFunctions.ToArray()));
return(Expression.Convert(reboundExpression, projectedType));
}
private Expression RebindEntityMemberInit(MemberInitExpression init)
{
Expression[] expressionsToTargetEntity;
Expression deepestEntry;
Expression expectedParamTypeInScope;
ParameterExpression expression5;
ParameterExpression expression6;
if (!this.pathBuilder.HasRewrites)
{
expressionsToTargetEntity = MemberAssignmentAnalysis.Analyze(this.pathBuilder.LambdaParameterInScope, ((MemberAssignment)init.Bindings[0]).Expression).GetExpressionsToTargetEntity();
}
else
{
expressionsToTargetEntity = MemberAssignmentAnalysis.EmptyExpressionArray;
}
Expression parameterEntryInScope = this.pathBuilder.ParameterEntryInScope;
List <string> list = new List <string>();
List <Func <object, object, Type, object> > list2 = new List <Func <object, object, Type, object> >();
Type type = init.NewExpression.Type;
Expression expression2 = Expression.Constant(type, typeof(Type));
string[] names = (from e in expressionsToTargetEntity.Skip <Expression>(1) select((MemberExpression)e).Member.Name).ToArray <string>();
if (expressionsToTargetEntity.Length <= 1)
{
deepestEntry = this.pathBuilder.ParameterEntryInScope;
expectedParamTypeInScope = this.pathBuilder.ExpectedParamTypeInScope;
expression5 = (ParameterExpression)this.pathBuilder.ParameterEntryInScope;
expression6 = (ParameterExpression)this.pathBuilder.ExpectedParamTypeInScope;
}
else
{
deepestEntry = this.GetDeepestEntry(expressionsToTargetEntity);
expectedParamTypeInScope = expression2;
expression5 = Expression.Parameter(typeof(object), "subentry" + this.identifierId++);
expression6 = (ParameterExpression)this.pathBuilder.ExpectedParamTypeInScope;
ProjectionPath path = new ProjectionPath((ParameterExpression)this.pathBuilder.LambdaParameterInScope, this.pathBuilder.ExpectedParamTypeInScope, this.pathBuilder.ParameterEntryInScope, expressionsToTargetEntity.Skip <Expression>(1));
ExpressionAnnotation annotation = new ExpressionAnnotation {
Segment = path[path.Count - 1]
};
this.annotations.Add(deepestEntry, annotation);
ExpressionAnnotation annotation2 = new ExpressionAnnotation {
Segment = path[path.Count - 1]
};
this.annotations.Add(expression5, annotation2);
this.pathBuilder.RegisterRewrite(this.pathBuilder.LambdaParameterInScope, names, expression5);
}
for (int i = 0; i < init.Bindings.Count; i++)
{
LambdaExpression expression7;
MemberAssignment assignment = (MemberAssignment)init.Bindings[i];
list.Add(assignment.Member.Name);
if (ClientTypeUtil.TypeOrElementTypeIsEntity(ClientTypeUtil.GetMemberType(assignment.Member)) && (assignment.Expression.NodeType == ExpressionType.MemberInit))
{
ProjectionPath path2;
ExpressionAnnotation annotation3;
Expression expression8 = CallMaterializer("ProjectionGetEntry", new Expression[] { parameterEntryInScope, Expression.Constant(assignment.Member.Name, typeof(string)) });
ParameterExpression key = Expression.Parameter(typeof(object), "subentry" + this.identifierId++);
if (this.annotations.TryGetValue(this.pathBuilder.ParameterEntryInScope, out annotation3))
{
path2 = new ProjectionPath((ParameterExpression)this.pathBuilder.LambdaParameterInScope, this.pathBuilder.ExpectedParamTypeInScope, parameterEntryInScope);
path2.AddRange(annotation3.Segment.StartPath);
}
else
{
path2 = new ProjectionPath((ParameterExpression)this.pathBuilder.LambdaParameterInScope, this.pathBuilder.ExpectedParamTypeInScope, parameterEntryInScope, expressionsToTargetEntity.Skip <Expression>(1));
}
Type reflectedType = assignment.Member.ReflectedType;
ProjectionPathSegment item = new ProjectionPathSegment(path2, assignment.Member.Name, reflectedType);
path2.Add(item);
string[] strArray2 = (from m in path2
where m.Member != null
select m.Member).ToArray <string>();
ExpressionAnnotation annotation4 = new ExpressionAnnotation {
Segment = item
};
this.annotations.Add(key, annotation4);
this.pathBuilder.RegisterRewrite(this.pathBuilder.LambdaParameterInScope, strArray2, key);
Expression expression = this.Visit(assignment.Expression);
this.pathBuilder.RevokeRewrite(this.pathBuilder.LambdaParameterInScope, strArray2);
this.annotations.Remove(key);
expression = Expression.Convert(expression, typeof(object));
ParameterExpression[] parameters = new ParameterExpression[] { this.materializerExpression, key, expression6 };
expression7 = Expression.Lambda(expression, parameters);
Expression[] arguments = new Expression[] { this.materializerExpression, expression8, expression6 };
ParameterExpression[] expressionArray4 = new ParameterExpression[] { this.materializerExpression, (ParameterExpression)parameterEntryInScope, expression6 };
expression7 = Expression.Lambda(Expression.Invoke(expression7, arguments), expressionArray4);
}
else
{
Expression body = Expression.Convert(this.Visit(assignment.Expression), typeof(object));
ParameterExpression[] expressionArray5 = new ParameterExpression[] { this.materializerExpression, expression5, expression6 };
expression7 = Expression.Lambda(body, expressionArray5);
}
list2.Add((Func <object, object, Type, object>)expression7.Compile());
}
for (int j = 1; j < expressionsToTargetEntity.Length; j++)
{
this.pathBuilder.RevokeRewrite(this.pathBuilder.LambdaParameterInScope, names);
this.annotations.Remove(deepestEntry);
this.annotations.Remove(expression5);
}
return(Expression.Convert(CallMaterializer("ProjectionInitializeEntity", new Expression[] { this.materializerExpression, deepestEntry, expectedParamTypeInScope, expression2, Expression.Constant(list.ToArray()), Expression.Constant(list2.ToArray()) }), type));
}
