--- /dev/null
+<?php
+
+namespace Drupal\drupalmoduleupgrader;
+
+/**
+ * Basic implementation of an analyzer report.
+ */
+class Report implements ReportInterface {
+
+ /**
+ * @var \Drupal\drupalmoduleupgrader\IssueInterface[]
+ */
+ protected $issues = [];
+
+ /**
+ * {@inheritdoc}
+ */
+ public function addIssue(IssueInterface $issue) {
+ $id = spl_object_hash($issue);
+ $this->issues[$id] = $issue;
+ return $this;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getIssues($tag = NULL) {
+ // We call array_values() here to reset the keys.
+ $issues = array_values($this->issues);
+
+ if ($tag) {
+ $issues = array_filter($issues, function(IssueInterface $issue) use ($tag) {
+ return $issue->hasTag($tag);
+ });
+ }
+
+ return $issues;
+ }
+
+ public function enumerateTag($tag) {
+ $enum = array_map(function(IssueInterface $issue) use ($tag) { return $issue->getTag($tag); }, $this->getIssues($tag));
+ return array_unique($enum);
+ }
+
+}