Add compilers as filters callback arguments

Author: kylekatarnls

src/Phug/Compiler.php

@@ -593,7 +593,7 @@ public function importBlocks(array $blocks)
      */
     public function registerImportPath($path)
     {
-        $current = $this->getPath() ?: $this->getOption('filename');
+        $current = $this->getPath();
         if (!isset($this->importPaths[$current])) {
             $this->importPaths[$current] = [];
         }
@@ -628,7 +628,7 @@ public function getImportPaths($path = null)
      */
     public function getCurrentImportPaths()
     {
-        return $this->getImportPaths($this->getPath() ?: $this->getOption('filename'));
+        return $this->getImportPaths($this->getPath());
     }
 
     /**
@@ -702,6 +702,7 @@ public function compile($input, $path = null)
 
         $input = $compileEvent->getInput();
         $path = $compileEvent->getPath();
+        $this->importPaths = [];
         $includes = [];
         foreach ($this->getOption('includes') as $include) {
             $includes[] = $this->compileDocument(file_get_contents($include), $include);

src/Phug/Compiler/NodeCompiler/FilterNodeCompiler.php

@@ -99,7 +99,9 @@ public function proceedFilter($filter, $input, $options)
         return strval(call_user_func(
             $filter,
             $input,
-            $options
+            $options,
+            $this->getCompiler(),
+            $this
         ));
     }
 }

tests/Phug/Compiler/NodeCompiler/FilterNodeCompilerTest.php

@@ -4,6 +4,7 @@
 
 use Phug\Compiler;
 use Phug\Compiler\NodeCompiler\FilterNodeCompiler;
+use Phug\CompilerInterface;
 use Phug\Formatter\Element\DocumentElement;
 use Phug\Formatter\Element\TextElement;
 use Phug\Parser\Node\ElementNode;
@@ -140,6 +141,27 @@ public function testFilterOption()
         );
     }
 
+    /**
+     * @covers ::<public>
+     */
+    public function testFilterCompilerArgument()
+    {
+        $compiler = new Compiler([
+            'filename' => '/directory/bar.pug',
+            'filters'  => [
+                'foo' => function ($contents, $options, CompilerInterface $compiler) {
+                    return basename($compiler->getPath());
+                },
+            ],
+        ]);
+        self::assertSame(
+            'bar.pug',
+            $compiler->compile(
+                ':foo'
+            )
+        );
+    }
+
     /**
      * @covers            ::compileText
      * @expectedException \Phug\CompilerException