org.sonar.plugins.csharp.S2327.html Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of sonar-csharp-plugin Show documentation

Code Analyzer for C#

There is a newer version: 10.2.0.105762

Why is this an issue?
When multiple, adjacent try statements have duplicate catch and/or finally blocks, they should be merged to
consolidate the catch/finally logic for cleaner, more readable code. Note that this applies even when there is intervening code outside
any try block.
Noncompliant code example
try
{
  DoTheFirstThing(a, b);
}
catch (InvalidOperationException ex)
{
  HandleException(ex);
}

DoSomeOtherStuff();

try  // Noncompliant; catch is identical to previous
{
  DoTheSecondThing();
}
catch (InvalidOperationException ex)
{
  HandleException(ex);
}

try  // Compliant; catch handles exception differently
{
  DoTheThirdThing(a);
}
catch (InvalidOperationException ex)
{
  LogAndDie(ex);
}

Compliant solution
try
{
  DoTheFirstThing(a, b);
  DoSomeOtherStuff();
  DoTheSecondThing();
}
catch (InvalidOperationException ex)
{
  HandleException(ex);
}

try  // Compliant; catch handles exception differently
{
  DoTheThirdThing(a);
}
catch (InvalidOperationException ex)
{
  LogAndDie(ex);
}