// will return either a PropBlock or a LitBlock
#region Modified code - Added entityMetadataProvider parameter
public static BaseBlock CreateRHSBlock(Object exprSource,
Type entityType, DataType otherExprDataType, IEntityMetadataProvider entityMetadataProvider)
{
if (exprSource == null)
{
return(new LitBlock(exprSource, otherExprDataType));
}
if (exprSource is String)
{
String source = (String)exprSource;
if (entityType == null)
{
// if entityType is unknown then assume that the rhs is a
// literal
return(new LitBlock(source, otherExprDataType));
}
if (PropertySignature.IsProperty(entityType, source, entityMetadataProvider))
{
return(new PropBlock(source, entityType, entityMetadataProvider));
}
else
{
return(new LitBlock(source, otherExprDataType));
}
}
if (TypeFns.IsPredefinedType(exprSource.GetType()))
{
return(new LitBlock(exprSource, otherExprDataType));
}
if (exprSource is IDictionary <string, Object> )
{
var exprMap = (IDictionary <string, Object>)exprSource;
// note that this is NOT the same a using get and checking for null
// because null is a valid 'value'.
if (!exprMap.ContainsKey("value"))
{
throw new Exception(
"Unable to locate a 'value' property on: "
+ exprMap.ToString());
}
Object value = exprMap["value"];
if (exprMap.ContainsKey("isProperty"))
{
return(new PropBlock((String)value, entityType, entityMetadataProvider));
}
else
{
String dt = (String)exprMap["dataType"];
DataType dataType = (dt != null) ? DataType.FromName(dt) : otherExprDataType;
return(new LitBlock(value, dataType));
}
}
if (exprSource is IList)
{
// right now this pretty much implies the values on an 'in' clause
return(new LitBlock(exprSource, otherExprDataType));
}
if (TypeFns.IsEnumType(exprSource.GetType()))
{
return(new LitBlock(exprSource, otherExprDataType));
}
throw new Exception(
"Unable to parse the right hand side of this BinaryExpression: "
+ exprSource.ToString());
}
public void Validate(Type entityType)
{
Property = new PropertySignature(entityType, PropertyPath);
}
public void Validate(Type entityType, IEntityMetadataProvider entityMetadataProvider)
{
Property = new PropertySignature(entityType, PropertyPath, entityMetadataProvider);
}