comparison vendor/consolidation/annotated-command/src/Parser/Internal/FullyQualifiedClassCache.php @ 0:4c8ae668cc8c

Initial import (non-working)

+<?php
+namespace Consolidation\AnnotatedCommand\Parser\Internal;
+
+class FullyQualifiedClassCache
+{
+    protected $classCache = [];
+    protected $namespaceCache = [];
+
+    public function qualify($filename, $className)
+    {
+        $this->primeCache($filename, $className);
+        return $this->cached($filename, $className);
+    }
+
+    protected function cached($filename, $className)
+    {
+        return isset($this->classCache[$filename][$className]) ? $this->classCache[$filename][$className] : $className;
+    }
+
+    protected function primeCache($filename, $className)
+    {
+        // If the cache has already been primed, do no further work
+        if (isset($this->namespaceCache[$filename])) {
+            return false;
+        }
+
+        $handle = fopen($filename, "r");
+        if (!$handle) {
+            return false;
+        }
+
+        $namespaceName = $this->primeNamespaceCache($filename, $handle);
+        $this->primeUseCache($filename, $handle);
+
+        // If there is no 'use' statement for the className, then
+        // generate an effective classname from the namespace
+        if (!isset($this->classCache[$filename][$className])) {
+            $this->classCache[$filename][$className] = $namespaceName . '\\' . $className;
+        }
+
+        fclose($handle);
+    }
+
+    protected function primeNamespaceCache($filename, $handle)
+    {
+        $namespaceName = $this->readNamespace($handle);
+        if (!$namespaceName) {
+            return false;
+        }
+        $this->namespaceCache[$filename] = $namespaceName;
+        return $namespaceName;
+    }
+
+    protected function primeUseCache($filename, $handle)
+    {
+        $usedClasses = $this->readUseStatements($handle);
+        if (empty($usedClasses)) {
+            return false;
+        }
+        $this->classCache[$filename] = $usedClasses;
+    }
+
+    protected function readNamespace($handle)
+    {
+        $namespaceRegex = '#^\s*namespace\s+#';
+        $line = $this->readNextRelevantLine($handle);
+        if (!$line || !preg_match($namespaceRegex, $line)) {
+            return false;
+        }
+
+        $namespaceName = preg_replace($namespaceRegex, '', $line);
+        $namespaceName = rtrim($namespaceName, ';');
+        return $namespaceName;
+    }
+
+    protected function readUseStatements($handle)
+    {
+        $useRegex = '#^\s*use\s+#';
+        $result = [];
+        while (true) {
+            $line = $this->readNextRelevantLine($handle);
+            if (!$line || !preg_match($useRegex, $line)) {
+                return $result;
+            }
+            $usedClass = preg_replace($useRegex, '', $line);
+            $usedClass = rtrim($usedClass, ';');
+            $unqualifiedClass = preg_replace('#.*\\\\#', '', $usedClass);
+            // If this is an aliased class, 'use \Foo\Bar as Baz', then adjust
+            if (strpos($usedClass, ' as ')) {
+                $unqualifiedClass = preg_replace('#.*\sas\s+#', '', $usedClass);
+                $usedClass = preg_replace('#\s+as\s+#', '', $usedClass);
+            }
+            $result[$unqualifiedClass] = $usedClass;
+        }
+    }
+
+    protected function readNextRelevantLine($handle)
+    {
+        while (($line = fgets($handle)) !== false) {
+            if (preg_match('#^\s*\w#', $line)) {
+                return trim($line);
+            }
+        }
+        return false;
+    }
+}