Make (almost) all classes final

Author: sebastianbergmann

ChangeLog-6.0.md

@@ -4,6 +4,10 @@ All notable changes of the PHP_CodeCoverage 6.0 release series are documented in
 
 ## [6.0.0] - 2018-02-02
 
+### Changed
+
+* Almost all classes are now final
+
 ### Removed
 
 * Implemented [#561](https://github.com/sebastianbergmann/php-code-coverage/issues/561): Remove HHVM driver

src/CodeCoverage.php

@@ -23,7 +23,7 @@
 /**
  * Provides collection functionality for PHP code coverage information.
  */
-class CodeCoverage
+final class CodeCoverage
 {
     /**
      * @var Driver

src/Driver/PHPDBG.php

@@ -17,7 +17,7 @@
  *
  * @codeCoverageIgnore
  */
-class PHPDBG implements Driver
+final class PHPDBG implements Driver
 {
     /**
      * Constructor.

src/Driver/Xdebug.php

@@ -17,7 +17,7 @@
  *
  * @codeCoverageIgnore
  */
-class Xdebug implements Driver
+final class Xdebug implements Driver
 {
     /**
      * Cache the number of lines for each file

src/Exception/CoveredCodeNotExecutedException.php

@@ -13,6 +13,6 @@
 /**
  * Exception that is raised when covered code is not executed.
  */
-class CoveredCodeNotExecutedException extends RuntimeException
+final class CoveredCodeNotExecutedException extends RuntimeException
 {
 }

src/Exception/InvalidArgumentException.php

@@ -10,7 +10,7 @@
 
 namespace SebastianBergmann\CodeCoverage;
 
-class InvalidArgumentException extends \InvalidArgumentException implements Exception
+final class InvalidArgumentException extends \InvalidArgumentException implements Exception
 {
     /**
      * @param int    $argument

src/Exception/MissingCoversAnnotationException.php

@@ -13,6 +13,6 @@
 /**
  * Exception that is raised when @covers must be used but is not.
  */
-class MissingCoversAnnotationException extends RuntimeException
+final class MissingCoversAnnotationException extends RuntimeException
 {
 }

src/Exception/UnintentionallyCoveredCodeException.php

@@ -13,7 +13,7 @@
 /**
  * Exception that is raised when code is unintentionally covered.
  */
-class UnintentionallyCoveredCodeException extends RuntimeException
+final class UnintentionallyCoveredCodeException extends RuntimeException
 {
     /**
      * @var array

src/Filter.php

@@ -13,7 +13,7 @@
 /**
  * Filter for whitelisting of code coverage information.
  */
-class Filter
+final class Filter
 {
     /**
      * Source files that are whitelisted.

src/Node/Builder.php

@@ -12,7 +12,7 @@
 
 use SebastianBergmann\CodeCoverage\CodeCoverage;
 
-class Builder
+final class Builder
 {
     /**
      * @param CodeCoverage $coverage