Added simple file to class

Author: dantleech

lib/Adapter/Simple/SimpleFileToClass.php

@@ -0,0 +1,86 @@
+<?php
+
+namespace Phpactor\ClassFileConverter\Adapter\Simple;
+
+use Phpactor\ClassFileConverter\Domain\FileToClass;
+use Phpactor\ClassFileConverter\Domain\ClassNameCandidates;
+use Phpactor\ClassFileConverter\Domain\FilePath;
+use Phpactor\ClassFileConverter\Domain\ClassName;
+
+class SimpleFileToClass implements FileToClass
+{
+    public function fileToClassCandidates(FilePath $filePath): ClassNameCandidates
+    {
+        $classNames = [];
+
+        $className = $this->getClassNameFromFile($filePath->__toString());
+
+        if ($className) {
+            $classNames[] = ClassName::fromString($className);
+        }
+
+        return ClassNameCandidates::fromClassNames($classNames);
+    }
+
+    /**
+     * Return the class name from a file.
+     *
+     * Taken from http://stackoverflow.com/questions/7153000/get-class-name-from-file
+     *
+     * @param string $file
+     *
+     * @return string
+     */
+    private function getClassNameFromFile($file)
+    {
+        $fp = fopen($file, 'r');
+
+        $class = $namespace = $buffer = '';
+        $i = 0;
+
+        while (!$class) {
+            if (feof($fp)) {
+                break;
+            }
+
+            // Read entire lines to prevent keyword truncation
+            for ($line = 0; $line <= 20; $line++) {
+                $buffer .= fgets($fp);
+            }
+            $tokens = @token_get_all($buffer);
+
+            if (strpos($buffer, '{') === false) {
+                continue;
+            }
+
+            for (; $i < count($tokens); $i++) {
+                if ($tokens[$i][0] === T_NAMESPACE) {
+                    for ($j = $i + 1; $j < count($tokens); $j++) {
+                        if ($tokens[$j][0] === T_STRING) {
+                            $namespace .= '\\' . $tokens[$j][1];
+                        } elseif ($tokens[$j] === '{' || $tokens[$j] === ';') {
+                            break;
+                        }
+                    }
+                }
+
+                if ($tokens[$i][0] === T_CLASS) {
+                    for ($j = $i + 1; $j < count($tokens); $j++) {
+                        if ($tokens[$j][0] === T_STRING) {
+                            $class = $tokens[$i + 2][1];
+                            break 2;
+                        }
+                    }
+                }
+            }
+        }
+
+        if (!trim($class)) {
+            return;
+        }
+
+        fclose($fp);
+
+        return ltrim($namespace . '\\' . $class, '\\');
+    }
+}

tests/Integration/Simple/SimpleFileToClassTest.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace Phpactor\ClassFileConverter\Tests\Integration\Simple;
+
+use Phpactor\ClassFileConverter\Tests\Integration\IntegrationTestCase;
+use Symfony\Component\Filesystem\Filesystem;
+use Phpactor\ClassFileConverter\Adapter\Simple\SimpleFileToClass;
+use Phpactor\ClassFileConverter\Domain\FilePath;
+use Phpactor\ClassFileConverter\Domain\ClassNameCandidates;
+use Phpactor\ClassFileConverter\Domain\ClassName;
+
+class SimpleFileToClassTest extends IntegrationTestCase
+{
+    /**
+     * @var SimpleFileToClass
+     */
+    private $fileToClass;
+
+    public function setUp()
+    {
+        $this->initWorkspace();
+        $projectPath = __DIR__.'/project';
+        $filesystem = new Filesystem();
+        $filesystem->mirror($projectPath, $this->workspacePath());
+        $this->fileToClass = new SimpleFileToClass();
+    }
+
+    public function testFileToClass()
+    {
+        $candidates = $this->fileToClass->fileToClassCandidates(FilePath::fromString(__DIR__ . '/project/lib/Foobar.php'));
+
+        $this->assertEquals(ClassNameCandidates::fromClassNames([
+            ClassName::fromString('Acme\\Foobar')
+        ]), $candidates);
+    }
+
+    public function testFileToNoCandidates()
+    {
+        $candidates = $this->fileToClass->fileToClassCandidates(FilePath::fromString(__DIR__ . '/project/lib/NoClasses.php'));
+
+        $this->assertEquals(ClassNameCandidates::fromClassNames([]), $candidates);
+    }
+}

tests/Integration/Simple/project/lib/Foobar.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace Acme;
+
+class Foobar
+{
+}