public static string GetBackingField(MemberInfo mi)
{
System.Reflection.PropertyInfo pi = mi as System.Reflection.PropertyInfo;
#if SILVERLIGHT || CF || UNITY3D || WinRT || MONODROID
string fieldName = SilverlightPropertyResolver.GetPrivateFieldName(pi, pi.DeclaringType);
if (fieldName != null)
{
return(fieldName);
}
#else
System.Reflection.FieldInfo fInfo = BackingFieldResolver.GetBackingField(pi);
if (fInfo != null)
{
return(fInfo.Name);
}
#endif
else
{
string fld = Sqo.Utilities.MetaHelper.GetBackingFieldByAttribute(mi);
if (fld != null)
{
return(fld);
}
else
{
throw new SiaqodbException("A Property must have UseVariable Attribute set");
}
}
}
/// <summary>
/// プロパティ情報からBackingFieldを取得する.
/// </summary>
/// <param name="property">Backing fieldsを取得したいプロパティ情報</param>
/// <param name="useCache">キャッシュ機能を利用する場合はtrueを指定する. default: true</param>
/// <returns>Backing fields情報</returns>
public static FieldInfo GetBackingField(this PropertyInfo property, bool useCache = true)
{
if (property == null)
{
throw new ArgumentNullException("The argument must be a non-null value.");
}
if (useCache && _backingfieldCache.TryGetValue(property, out FieldInfo field))
{
return(field);
}
field = BackingFieldResolver.GetBackingField(property);
if (useCache)
{
_backingfieldCache.Add(property, field);
}
return(field);
}
protected override Expression VisitMemberAccess(MemberExpression m)
{
if (m.Expression != null && m.Expression.NodeType == ExpressionType.Parameter)
{
#if WinRT
if (m.Member.GetMemberType() == MemberTypes.Property)
#else
if (m.Member.MemberType == System.Reflection.MemberTypes.Property)
#endif
{
if (m.Member.Name == "OID")
{
joinFieldName = m.Member.Name;
}
else
{
System.Reflection.PropertyInfo pi = m.Member as System.Reflection.PropertyInfo;
#if SILVERLIGHT || CF || UNITY3D || WinRT || MONODROID
string fieldName = SilverlightPropertyResolver.GetPrivateFieldName(pi, pi.DeclaringType);
if (fieldName != null)
{
joinFieldName = fieldName;
}
else
{
string fld = Sqo.Utilities.MetaHelper.GetBackingFieldByAttribute(m.Member);
if (fld != null)
{
joinFieldName = fld;
}
else
{
throw new SiaqodbException("A Property must have UseVariable Attribute set");
}
}
#else
try
{
System.Reflection.FieldInfo fi = BackingFieldResolver.GetBackingField(pi);
if (fi != null)
{
joinFieldName = fi.Name;
}
}
catch (Exception ex)
{
string fld = Sqo.Utilities.MetaHelper.GetBackingFieldByAttribute(m.Member);
if (fld != null)
{
joinFieldName = fld;
}
else
{
throw new SiaqodbException("A Property must have UseVariable Attribute set");
}
}
#endif
}
}
#if WinRT
else if (m.Member.GetMemberType() == MemberTypes.Field)
#else
else if (m.Member.MemberType == System.Reflection.MemberTypes.Field)
#endif
{
joinFieldName = m.Member.Name;
}
else
{
throw new NotSupportedException("Unsupported Member Type!");
}
return(m);
}
throw new NotSupportedException(string.Format("The member '{0}' is not supported", m.Member.Name));
}
protected override Expression VisitMemberAccess(MemberExpression m)
{
if (m.Expression != null && m.Expression.NodeType == ExpressionType.Parameter)
{
#if WinRT
if (m.Member.GetMemberType() == MemberTypes.Property)
#else
if (m.Member.MemberType == System.Reflection.MemberTypes.Property)
#endif
{
if (m.Member.Name == "OID")
{
SqoColumn col = new SqoColumn();
col.SourcePropName = m.Member.Name;
col.SourceType = m.Expression.Type;
this.columns.Add(col);
return(Expression.Convert(Expression.Call(this.row, miGetValue, Expression.Constant(iColumn++)), m.Type));
}
else
{
System.Reflection.PropertyInfo pi = m.Member as System.Reflection.PropertyInfo;
#if SILVERLIGHT || CF || UNITY3D || WinRT || MONODROID
string fieldName = SilverlightPropertyResolver.GetPrivateFieldName(pi, pi.DeclaringType);
if (fieldName != null)
{
SqoColumn col = new SqoColumn();
col.SourcePropName = fieldName;
col.SourceType = m.Expression.Type;
this.columns.Add(col);
return(Expression.Convert(Expression.Call(this.row, miGetValue, Expression.Constant(iColumn++)), m.Type));
}
else
{
string fld = MetaHelper.GetBackingFieldByAttribute(m.Member);
if (fld != null)
{
SqoColumn col = new SqoColumn();
col.SourcePropName = fld;
col.SourceType = m.Expression.Type;
this.columns.Add(col);
return(Expression.Convert(Expression.Call(this.row, miGetValue, Expression.Constant(iColumn++)), m.Type));
}
else
{
throw new SiaqodbException("A Property must have UseVariable Attribute set");
}
}
#else
try
{
System.Reflection.FieldInfo fi = BackingFieldResolver.GetBackingField(pi);
if (fi != null)
{
SqoColumn col = new SqoColumn();
col.SourcePropName = fi.Name;
col.SourceType = m.Expression.Type;
this.columns.Add(col);
return(Expression.Convert(Expression.Call(this.row, miGetValue, Expression.Constant(iColumn++)), m.Type));
}
else
{
throw new SiaqodbException("A Property must have UseVariable Attribute set");
}
}
catch
{
string fld = Sqo.Utilities.MetaHelper.GetBackingFieldByAttribute(m.Member);
if (fld != null)
{
SqoColumn col = new SqoColumn();
col.SourcePropName = fld;
col.SourceType = m.Expression.Type;
this.columns.Add(col);
return(Expression.Convert(Expression.Call(this.row, miGetValue, Expression.Constant(iColumn++)), m.Type));
}
else
{
throw new SiaqodbException("A Property must have UseVariable Attribute set");
}
}
#endif
}
}
#if WinRT
else if (m.Member.GetMemberType() == MemberTypes.Field)
#else
else if (m.Member.MemberType == System.Reflection.MemberTypes.Field)
#endif
{
SqoColumn col = new SqoColumn();
col.SourcePropName = m.Member.Name;
col.SourceType = m.Expression.Type;
this.columns.Add(col);
return(Expression.Convert(Expression.Call(this.row, miGetValue, Expression.Constant(iColumn++)), m.Type));
}
else
{
throw new NotSupportedException("Not supported Member Type!");
}
}
else
{
return(base.VisitMemberAccess(m));
}
}
protected override Expression VisitMemberAccess(MemberExpression m)
{
//TODO when member is declared by interface, this would solve, but need to find out implementors of interface to get backing field of property
//if (m.Expression != null && (m.Expression.NodeType == ExpressionType.Convert || m.Expression.NodeType == ExpressionType.ConvertChecked))
//{
// MemberExpression memExpr= Expression.MakeMemberAccess(((UnaryExpression)m.Expression).Operand ,m.Member) ;
// return this.VisitMemberAccess(memExpr);
//}
if (m.Expression != null && (m.Expression.NodeType == ExpressionType.Parameter || m.Expression.NodeType == ExpressionType.MemberAccess))
{
if (currentWhere == null)
{
if (m.Type == typeof(bool)) //ex: WHERE Active
{
BinaryExpression exp = BinaryExpression.MakeBinary(ExpressionType.Equal, m, Expression.Constant(true));
return(this.VisitBinary(exp));
}
}
#if WinRT
if (m.Member.GetMemberType() == MemberTypes.Property)
#else
if (m.Member.MemberType == System.Reflection.MemberTypes.Property)
#endif
{
if (m.Member.Name == "OID")
{
currentWhere.AttributeName.Add("OID");
currentWhere.ParentType.Add(m.Member.DeclaringType);
}
else
{
if (m.Member.DeclaringType == typeof(string))
{
throw new Exceptions.LINQUnoptimizeException(string.Format("The member '{0}' is not supported", m.Member.Name));
}
System.Reflection.PropertyInfo pi = m.Member as System.Reflection.PropertyInfo;
#if SILVERLIGHT || CF || UNITY3D || WinRT || MONODROID
string fieldName = SilverlightPropertyResolver.GetPrivateFieldName(pi, pi.DeclaringType);
if (fieldName != null)
{
currentWhere.AttributeName.Add(fieldName);
currentWhere.ParentType.Add(m.Member.DeclaringType);
}
else
{
string fld = Sqo.Utilities.MetaHelper.GetBackingFieldByAttribute(m.Member);
if (fld != null)
{
currentWhere.AttributeName.Add(fld);
currentWhere.ParentType.Add(m.Member.DeclaringType);
}
else
{
throw new SiaqodbException("A Property must have UseVariable Attribute set( property:" + m.Member.Name + " of type:" + m.Member.DeclaringType.ToString() + ")");
}
}
#else
try
{
System.Reflection.FieldInfo fi = BackingFieldResolver.GetBackingField(pi);
if (fi != null)
{
currentWhere.AttributeName.Add(fi.Name);
currentWhere.ParentType.Add(m.Member.DeclaringType);
}
}
catch
{
string fld = Sqo.Utilities.MetaHelper.GetBackingFieldByAttribute(m.Member);
if (fld != null)
{
currentWhere.AttributeName.Add(fld);
currentWhere.ParentType.Add(m.Member.DeclaringType);
}
else
{
throw new SiaqodbException("A Property must have UseVariable Attribute set( property:" + m.Member.Name + " of type:" + m.Member.DeclaringType.ToString() + ")");
}
}
#endif
}
}
#if WinRT
else if (m.Member.GetMemberType() == MemberTypes.Field)
#else
else if (m.Member.MemberType == System.Reflection.MemberTypes.Field)
#endif
{
currentWhere.AttributeName.Add(m.Member.Name);
currentWhere.ParentType.Add(m.Member.DeclaringType);
}
else
{
throw new NotSupportedException("Unsupported Member Type!");
}
if (m.Expression.NodeType == ExpressionType.MemberAccess)
{
return(base.VisitMemberAccess(m));
}
else
{
return(m);
}
}
throw new Exceptions.LINQUnoptimizeException(string.Format("The member '{0}' is not supported", m.Member.Name));
}