Improve sources and fix tests

Author: SerafimArts

README.md

@@ -99,7 +99,6 @@ $result = pipe($arg)
     ->array_merge($result, _);
 ```
 
-
 ## Working With Value
 
 To pass a value as an argument to a function, use the 
@@ -130,7 +129,7 @@ To get the value, use one of the options:
 $context = pipe('hello')->strtoupper;
 
 var_dump($context);
-// object(Serafim\Pipe\Pipe)#8 (1) { ... } 
+// object(Fun\Pipe\Pipe)#8 (1) { ... } 
 
 var_dump($context());
 // string(5) "HELLO"
@@ -150,23 +149,6 @@ namespace Example {
 }
 ```
 
-During a `pipe` call, it implicitly uses the namespace in which it is called 
-as a priority:
-
-```php
-namespace {
-    echo (pipe()->foo)(); // 'foo'
-}
-
-namespace Example {
-    echo (pipe()->foo)(); // 'Example\\foo'
-}
-
-namespace Another {
-    echo (pipe()->foo)(); // 'foo'
-}
-```
-
 Let's try to manage the namespace:
 
 ```php
@@ -202,3 +184,6 @@ pipe()
     ->a // Call "a()"
 ;
 ```
+
+> Note that the behavior of the `->use()` method differs depending on whether 
+> the second argument is passed.

bin/pipe

@@ -1,13 +1,14 @@
 #!/usr/bin/env php
 <?php
+
 /**
  * This file is part of Pipe package.
  *
  * For the full copyright and license information, please view the LICENSE
  * file that was distributed with this source code.
  */
-declare(strict_types=1);
 
+declare(strict_types=1);
 
 use Composer\Autoload\ClassLoader;
 use Symfony\Component\Console\Application;

composer.json

@@ -23,6 +23,7 @@
     ],
     "require": {
         "php": ">=7.4",
+        "symfony/polyfill-php80": "^1.0",
         "phpfn/placeholder": "^2.0"
     },
     "autoload": {

src/Console/BuildAutocompleteCommand.php

@@ -23,8 +23,6 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 /**
- * Class BuildAutocompleteCommand
- *
  * @mixin Pipe
  */
 class BuildAutocompleteCommand extends Command
@@ -83,7 +81,7 @@ public function execute(InputInterface $input, OutputInterface $output): int
             'classes'  => [
                 ClassGenerator::fromArray([
                     'name'          => 'Pipe',
-                    'namespacename' => 'Serafim\\Pipe',
+                    'namespacename' => 'Fun\\Pipe',
                     'docblock'      => $docblock,
                 ]),
             ],
@@ -142,7 +140,8 @@ private function getDocBlock(): array
 
                 $tags[] = [
                     'name'        => 'method',
-                    'description' => 'PipeInterface|$this ' . ($methods[] = $name) . '(' . \implode(', ', $parameters) . ')',
+                    'description' => 'PipeInterface|$this ' .
+                        ($methods[] = $name) . '(' . \implode(', ', $parameters) . ')',
                 ];
             }
 

src/Exception/FunctionNotFoundException.php

@@ -11,9 +11,6 @@
 
 namespace Fun\Pipe\Exception;
 
-/**
- * Class FunctionNotFoundException
- */
 class FunctionNotFoundException extends \Error
 {
 }

src/Pipe.php

@@ -79,14 +79,14 @@ final class Pipe implements PipeInterface
      *
      * @var string|null
      */
-    private $use;
+    private ?string $use = null;
 
     /**
      * The namespace that using for all function prefixes.
      *
      * @var string
      */
-    private $namespace;
+    private string $namespace;
 
     /**
      * Pipe constructor.
@@ -96,8 +96,7 @@ final class Pipe implements PipeInterface
      */
     public function __construct($value = null, string $namespace = null)
     {
-        $this->namespace = $namespace ?? Trace::getNamespace(__DIR__);
-
+        $this->namespace = $namespace ?? '';
         $this->value = $this->resolveValue($value);
     }
 
@@ -154,9 +153,7 @@ public function __invoke(...$args)
      */
     private function applyArguments(array $arguments): array
     {
-        return Placeholder::map($arguments, function () {
-            return $this->value;
-        });
+        return Placeholder::map($arguments, fn() => $this->value);
     }
 
     /**

src/PipeInterface.php

@@ -11,9 +11,6 @@
 
 namespace Fun\Pipe;
 
-/**
- * Interface PipeInterface
- */
 interface PipeInterface
 {
     /**

src/RendererTrait.php

@@ -11,9 +11,6 @@
 
 namespace Fun\Pipe;
 
-/**
- * Trait RendererTrait
- */
 trait RendererTrait
 {
     /**
@@ -82,6 +79,7 @@ private function splitIterableValues(iterable $values): string
     private function renderAsJson($value): string
     {
         $result = \json_encode($value);
+
         if (\json_last_error() !== \JSON_ERROR_NONE) {
             return $this->renderFallback($value);
         }

src/Trace.php

@@ -11,9 +11,6 @@
 
 namespace Fun\Pipe\Tests;
 
-/**
- * Class TestFunctionPiping
- */
 class FunctionPipingTestCase extends TestCase
 {
     /**

tests/FunctionPipingTestCase.php

@@ -13,9 +13,6 @@
 
 use Fun\Pipe\PipeInterface;
 
-/**
- * Class NamespacedFunctionsTestCase
- */
 class NamespacedFunctionsTestCase extends TestCase
 {
     /**
@@ -57,7 +54,7 @@ public function testGlobalFunctionFromNamespace(): void
     public function testExportedFunctionFromNamespace(): void
     {
         $this->assertSame(
-            __NAMESPACE__ . '\\test_foo',
+            'test_foo',
             (pipe(true)->test_foo)()
         );
     }
@@ -85,10 +82,7 @@ public function testFunctionWithChangedContext(): void
 
         $this->assertSame('Some\\Any\\test_foo', $context());
 
-        $context = $context
-            ->test_foo;
-
-        $this->assertSame(__NAMESPACE__ . '\\test_foo', $context());
+        $this->assertSame('test_foo', ($context->test_foo)());
     }
 
     /**

tests/NamespacedFunctionsTestCase.php

@@ -11,25 +11,23 @@
 
 namespace Fun\Pipe\Tests {
 
-    function test_foo()
+    function test_foo(): string
     {
         return __FUNCTION__;
     }
 }
-
 namespace {
 
-    function global_foo()
+    function global_foo(): string
     {
         return __FUNCTION__;
     }
 
-    function test_foo()
+    function test_foo(): string
     {
         return __FUNCTION__;
     }
 }
-
 namespace Some\Any {
 
     function test_foo()