Mark internal classes as such

Author: sebastianbergmann

src/Directory.php

@@ -9,6 +9,9 @@
  */
 namespace SebastianBergmann\CodeCoverage;
 
+/**
+ * @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
+ */
 final class Directory
 {
     /**

src/Driver/Driver.php

@@ -13,6 +13,9 @@
 use SebastianBergmann\CodeCoverage\DeadCodeDetectionNotSupportedException;
 use SebastianBergmann\CodeCoverage\RawCodeCoverageData;
 
+/**
+ * @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
+ */
 abstract class Driver
 {
     /**

src/Driver/PcovDriver.php

@@ -12,6 +12,9 @@
 use SebastianBergmann\CodeCoverage\Filter;
 use SebastianBergmann\CodeCoverage\RawCodeCoverageData;
 
+/**
+ * @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
+ */
 final class PcovDriver extends Driver
 {
     /**

src/Driver/PhpdbgDriver.php

@@ -12,6 +12,9 @@
 use SebastianBergmann\CodeCoverage\RawCodeCoverageData;
 use SebastianBergmann\CodeCoverage\RuntimeException;
 
+/**
+ * @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
+ */
 final class PhpdbgDriver extends Driver
 {
     /**

src/Driver/XdebugDriver.php

@@ -13,6 +13,9 @@
 use SebastianBergmann\CodeCoverage\RawCodeCoverageData;
 use SebastianBergmann\CodeCoverage\RuntimeException;
 
+/**
+ * @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
+ */
 final class XdebugDriver extends Driver
 {
     /**

src/Node/AbstractNode.php

@@ -12,7 +12,7 @@
 use SebastianBergmann\CodeCoverage\Percentage;
 
 /**
- * Base class for nodes in the code coverage information tree.
+ * @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
  */
 abstract class AbstractNode implements \Countable
 {

src/Node/Builder.php

@@ -12,6 +12,9 @@
 use SebastianBergmann\CodeCoverage\CodeCoverage;
 use SebastianBergmann\CodeCoverage\ProcessedCodeCoverageData;
 
+/**
+ * @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
+ */
 final class Builder
 {
     public function build(CodeCoverage $coverage): Directory

src/Node/Directory.php

@@ -10,7 +10,7 @@
 namespace SebastianBergmann\CodeCoverage\Node;
 
 /**
- * Represents a directory in the code coverage information tree.
+ * @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
  */
 final class Directory extends AbstractNode implements \IteratorAggregate
 {

src/Node/File.php

@@ -10,7 +10,7 @@
 namespace SebastianBergmann\CodeCoverage\Node;
 
 /**
- * Represents a file in the code coverage information tree.
+ * @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
  */
 final class File extends AbstractNode
 {

src/Node/Iterator.php

@@ -10,7 +10,7 @@
 namespace SebastianBergmann\CodeCoverage\Node;
 
 /**
- * Recursive iterator for node object graphs.
+ * @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
  */
 final class Iterator implements \RecursiveIterator
 {