To get a trial key
fill out the form below
Team License (a basic version)
Enterprise License (an extended version)
* By clicking this button you agree to our Privacy Policy statement

Request our prices
New License
License Renewal
--Select currency--
USD
EUR
GBP
RUB
* By clicking this button you agree to our Privacy Policy statement

Free PVS-Studio license for Microsoft MVP specialists
* By clicking this button you agree to our Privacy Policy statement

To get the licence for your open-source project, please fill out this form
* By clicking this button you agree to our Privacy Policy statement

I am interested to try it on the platforms:
* By clicking this button you agree to our Privacy Policy statement

Message submitted.

Your message has been sent. We will email you at


If you haven't received our response, please do the following:
check your Spam/Junk folder and click the "Not Spam" button for our message.
This way, you won't miss messages from our team in the future.

>
>
>
V3077. Property setter / event accessor…
Analyzer diagnostics
General Analysis (C++)
General Analysis (C#)
General Analysis (Java)
Diagnosis of micro-optimizations (C++)
Diagnosis of 64-bit errors (Viva64, C++)
MISRA errors
AUTOSAR errors
OWASP errors (C#)
Additional information
Contents

V3077. Property setter / event accessor does not utilize its 'value' parameter.

Mar 11 2016

The analyzer detected a possible error that deals with property and event accessors not using their 'value' parameter.

Consider the following example:

private bool _visible;
public bool IsVisible
{
  get { return _visible; }
  set { _visible = true; }
}

When setting a new value for the "IsVisible" property, the programmer intended to save the result into the "_visible" variable but made a mistake. As a result, changing the property won't affect the object state in any way.

This is the fixed version:

public bool IsVisible
{
  get { return _visible; }
  set { _visible = value; }
}

Code of the following pattern will also trigger the warning:

public bool Unsafe {
  get { return (flags & Flags.Unsafe) != 0; }
  set { flags |= Flags.Unsafe; }
}

In this case, the 'set' method is used to change the flag state and there's no error. However, using a property like that may be misleading, as the assignments "myobj.Unsafe = true" and "myobj.Unsafe = false" will have the same result.

To reset the state of the internal variable, it is better to use a function rather than a property:

public bool Unsafe
{
  get { return (flags & Flags.Unsafe) != 0; }
}

public void SetUnsafe()
{
  flags |= Flags.Unsafe;
}

If you can't do without the property, mark this line with special comment "//-V3077" to tell the analyzer not to output the warning on this property in future:

public bool Unsafe {
  get { return (flags & Flags.Unsafe) != 0; }
  set { flags |= Flags.Unsafe; } //-V3077
}

For a complete overview of all false-positive suppression mechanisms, see the documentation.

You can look at examples of errors detected by the V3077 diagnostic.

This website uses cookies and other technology to provide you a more personalized experience. By continuing the view of our web-pages you accept the terms of using these files. If you don't want your personal data to be processed, please, leave this site.
Learn More →
Accept