The analyzer has detected a potential resource leak. If creating an object causes an exception, the inner object already created may not be properly released.
The example:
public void EditFile(string f) { using (BufferedStream os = new BufferedStream(new FileStream(f, FileMode.Open))) { .... } }
In this case, an object of the FileStream
class may be created successfully, but an exception is thrown when creating an object of the BufferedStrem
class. As a result, the Dispose
method is not be called, and the file descriptor is not released.
To secure the code, consider the following approach:
public void EditFile(string f) { using (FileStream fileStream = new FileStream(f, FileMode.Open)) { using (BufferedStream os = new BufferedStream(fileStream)) { .... } } }
In this implementation, the using
statement creates an object of the FileStream
class in advance, ensuring it is properly released and preventing the resource leak.
This diagnostic is classified as: