annotate vendor/consolidation/annotated-command/src/Parser/Internal/FullyQualifiedClassCache.php @ 19:fa3358dc1485 tip

Add ndrum files
author Chris Cannam
date Wed, 28 Aug 2019 13:14:47 +0100
parents 129ea1e6d783
children
rev   line source
Chris@0 1 <?php
Chris@0 2 namespace Consolidation\AnnotatedCommand\Parser\Internal;
Chris@0 3
Chris@0 4 class FullyQualifiedClassCache
Chris@0 5 {
Chris@0 6 protected $classCache = [];
Chris@0 7 protected $namespaceCache = [];
Chris@0 8
Chris@0 9 public function qualify($filename, $className)
Chris@0 10 {
Chris@0 11 $this->primeCache($filename, $className);
Chris@0 12 return $this->cached($filename, $className);
Chris@0 13 }
Chris@0 14
Chris@0 15 protected function cached($filename, $className)
Chris@0 16 {
Chris@0 17 return isset($this->classCache[$filename][$className]) ? $this->classCache[$filename][$className] : $className;
Chris@0 18 }
Chris@0 19
Chris@0 20 protected function primeCache($filename, $className)
Chris@0 21 {
Chris@0 22 // If the cache has already been primed, do no further work
Chris@0 23 if (isset($this->namespaceCache[$filename])) {
Chris@0 24 return false;
Chris@0 25 }
Chris@0 26
Chris@0 27 $handle = fopen($filename, "r");
Chris@0 28 if (!$handle) {
Chris@0 29 return false;
Chris@0 30 }
Chris@0 31
Chris@0 32 $namespaceName = $this->primeNamespaceCache($filename, $handle);
Chris@0 33 $this->primeUseCache($filename, $handle);
Chris@0 34
Chris@0 35 // If there is no 'use' statement for the className, then
Chris@0 36 // generate an effective classname from the namespace
Chris@0 37 if (!isset($this->classCache[$filename][$className])) {
Chris@0 38 $this->classCache[$filename][$className] = $namespaceName . '\\' . $className;
Chris@0 39 }
Chris@0 40
Chris@0 41 fclose($handle);
Chris@0 42 }
Chris@0 43
Chris@0 44 protected function primeNamespaceCache($filename, $handle)
Chris@0 45 {
Chris@0 46 $namespaceName = $this->readNamespace($handle);
Chris@0 47 if (!$namespaceName) {
Chris@0 48 return false;
Chris@0 49 }
Chris@0 50 $this->namespaceCache[$filename] = $namespaceName;
Chris@0 51 return $namespaceName;
Chris@0 52 }
Chris@0 53
Chris@0 54 protected function primeUseCache($filename, $handle)
Chris@0 55 {
Chris@0 56 $usedClasses = $this->readUseStatements($handle);
Chris@0 57 if (empty($usedClasses)) {
Chris@0 58 return false;
Chris@0 59 }
Chris@0 60 $this->classCache[$filename] = $usedClasses;
Chris@0 61 }
Chris@0 62
Chris@0 63 protected function readNamespace($handle)
Chris@0 64 {
Chris@0 65 $namespaceRegex = '#^\s*namespace\s+#';
Chris@0 66 $line = $this->readNextRelevantLine($handle);
Chris@0 67 if (!$line || !preg_match($namespaceRegex, $line)) {
Chris@0 68 return false;
Chris@0 69 }
Chris@0 70
Chris@0 71 $namespaceName = preg_replace($namespaceRegex, '', $line);
Chris@0 72 $namespaceName = rtrim($namespaceName, ';');
Chris@0 73 return $namespaceName;
Chris@0 74 }
Chris@0 75
Chris@0 76 protected function readUseStatements($handle)
Chris@0 77 {
Chris@0 78 $useRegex = '#^\s*use\s+#';
Chris@0 79 $result = [];
Chris@0 80 while (true) {
Chris@0 81 $line = $this->readNextRelevantLine($handle);
Chris@0 82 if (!$line || !preg_match($useRegex, $line)) {
Chris@0 83 return $result;
Chris@0 84 }
Chris@0 85 $usedClass = preg_replace($useRegex, '', $line);
Chris@0 86 $usedClass = rtrim($usedClass, ';');
Chris@0 87 $unqualifiedClass = preg_replace('#.*\\\\#', '', $usedClass);
Chris@0 88 // If this is an aliased class, 'use \Foo\Bar as Baz', then adjust
Chris@0 89 if (strpos($usedClass, ' as ')) {
Chris@0 90 $unqualifiedClass = preg_replace('#.*\sas\s+#', '', $usedClass);
Chris@17 91 $usedClass = preg_replace('#[a-zA-Z0-9]+\s+as\s+#', '', $usedClass);
Chris@0 92 }
Chris@0 93 $result[$unqualifiedClass] = $usedClass;
Chris@0 94 }
Chris@0 95 }
Chris@0 96
Chris@0 97 protected function readNextRelevantLine($handle)
Chris@0 98 {
Chris@0 99 while (($line = fgets($handle)) !== false) {
Chris@0 100 if (preg_match('#^\s*\w#', $line)) {
Chris@0 101 return trim($line);
Chris@0 102 }
Chris@0 103 }
Chris@0 104 return false;
Chris@0 105 }
Chris@0 106 }