Allow optimised autoloader generation

Author: assertchris

source/Composer/Plugin.php

@@ -12,6 +12,7 @@
 use ReflectionClass;
 use RecursiveDirectoryIterator;
 use RecursiveIteratorIterator;
+use function Pre\Plugin\compile;
 
 class Plugin implements PluginInterface, EventSubscriberInterface
 {
@@ -92,7 +93,7 @@ public function onPreAutoloadDump(Event $event)
                 $pre = $file->getPathname();
                 $php = preg_replace("/pre$/", "php", $pre);
 
-                Pre\Plugin\compile(
+                compile(
                     $pre, $php, $format = true, $comment = false
                 );
             }

source/functions.php

@@ -2,126 +2,141 @@
 
 namespace Pre\Plugin;
 
-function find($file, $iterations = 10, $prefix = __DIR__)
-{
-    $folder = "../";
+if (!function_exists("\\Pre\\Plugin\\find")) {
+    function find($file, $iterations = 10, $prefix = __DIR__) {
+        $folder = "../";
 
-    if ($prefix) {
-        $folder = "{$prefix}/{$folder}";
-    }
+        if ($prefix) {
+            $folder = "{$prefix}/{$folder}";
+        }
 
-    for ($i = 0; $i < $iterations; $i++) {
-        $try = "{$folder}{$file}";
+        for ($i = 0; $i < $iterations; $i++) {
+            $try = "{$folder}{$file}";
 
-        if (file_exists($try)) {
-            return realpath($try);
-        }
+            if (file_exists($try)) {
+                return realpath($try);
+            }
 
-        $folder .= "../";
+            $folder .= "../";
+        }
     }
 }
 
-function base()
-{
-    $vendor = find("vendor");
-    return realpath("{$vendor}/../");
+if (!function_exists("\\Pre\\Plugin\\base")) {
+    function base() {
+        $vendor = find("vendor");
+        return realpath("{$vendor}/../");
+    }
 }
 
-function defer($code)
-{
-    $hidden = realpath(__DIR__ . "/../hidden/vendor/autoload.php");
-    $visible = find("autoload.php");
-    
-    if (!$visible) {
-        // the plugin is being used/tested directly
-        $visible = __DIR__ . "/../vendor/autoload.php";
-    }
 
-    $defer = "
-        require '{$hidden}';
-        require '{$visible}';
+if (!function_exists("\\Pre\\Plugin\\defer")) {
+    function defer($code) {
+        $hidden = realpath(__DIR__ . "/../hidden/vendor/autoload.php");
+        $visible = find("autoload.php");
 
-        \$function = function() {
-            {$code};
-        };
+        if (!$visible) {
+            // the plugin is being used/tested directly
+            $visible = __DIR__ . "/../vendor/autoload.php";
+        }
 
-        print base64_encode(serialize(\$function()));
-    ";
+        $defer = "
+            require '{$hidden}';
+            require '{$visible}';
 
-    $result = exec(
-        "php -r 'eval(base64_decode(\"" . base64_encode($defer) . "\"));'"
-    );
-    
-    return unserialize(base64_decode($result));
-}
+            \$function = function() {
+                {$code};
+            };
+
+            print base64_encode(serialize(\$function()));
+        ";
 
-function instance()
-{
-    static $instance = null;
+        $result = exec(
+            "php -r 'eval(base64_decode(\"" . base64_encode($defer) . "\"));'"
+        );
 
-    if ($instance === null) {
-        $instance = new Parser();
+        return unserialize(base64_decode($result));
     }
+}
+
+if (!function_exists("\\Pre\\Plugin\\instance")) {
+    function instance() {
+        static $instance = null;
+
+        if ($instance === null) {
+            $instance = new Parser();
+        }
 
-    return $instance;
+        return $instance;
+    }
 }
 
-function process($from)
-{
-    $instance = instance();
-    return $instance->process($from);
+if (!function_exists("\\Pre\\Plugin\\process")) {
+    function process($from) {
+        $instance = instance();
+        return $instance->process($from);
+    }
 }
 
-function compile($from, $to, $format = true, $comment = true)
-{
-    $instance = instance();
-    return $instance->compile($from, $to, $format, $comment);
+if (!function_exists("\\Pre\\Plugin\\compile")) {
+    function compile($from, $to, $format = true, $comment = true) {
+        $instance = instance();
+        return $instance->compile($from, $to, $format, $comment);
+    }
 }
 
-function parse($code)
-{
-    $instance = instance();
-    return $instance->parse($code);
+if (!function_exists("\\Pre\\Plugin\\parse")) {
+    function parse($code) {
+        $instance = instance();
+        return $instance->parse($code);
+    }
 }
 
-function format($code)
-{
-    $instance = instance();
-    return $instance->format($code);
+if (!function_exists("\\Pre\\Plugin\\format")) {
+    function format($code) {
+        $instance = instance();
+        return $instance->format($code);
+    }
 }
 
-function addMacro($macro)
-{
-    $instance = instance();
-    return $instance->addMacro($macro);
+if (!function_exists("\\Pre\\Plugin\\addMacro")) {
+    function addMacro($macro) {
+        $instance = instance();
+        return $instance->addMacro($macro);
+    }
 }
 
-function removeMacro($macro)
-{
-    $instance = instance();
-    return $instance->removeMacro($macro);
+if (!function_exists("\\Pre\\Plugin\\removeMacro")) {
+    function removeMacro($macro) {
+        $instance = instance();
+        return $instance->removeMacro($macro);
+    }
 }
 
-function addCompiler($compiler, $callable)
-{
-    $instance = instance();
-    return $instance->addCompiler($compiler, $callable);
+if (!function_exists("\\Pre\\Plugin\\addCompiler")) {
+    function addCompiler($compiler, $callable) {
+        $instance = instance();
+        return $instance->addCompiler($compiler, $callable);
+    }
 }
 
-function removeCompiler($compiler)
-{
-    $instance = instance();
-    return $instance->removeCompiler($compiler);
+if (!function_exists("\\Pre\\Plugin\\removeCompiler")) {
+    function removeCompiler($compiler) {
+        $instance = instance();
+        return $instance->removeCompiler($compiler);
+    }
 }
 
-function addFunction(...$args)
-{
-    $instance = instance();
-    return $instance->addFunction(...$args);
+if (!function_exists("\\Pre\\Plugin\\addFunction")) {
+    function addFunction(...$args) {
+        $instance = instance();
+        return $instance->addFunction(...$args);
+    }
 }
 
-function getFunction(...$args)
-{
-    $instance = instance();
-    return $instance->getFunction(...$args);
+if (!function_exists("\\Pre\\Plugin\\getFunction")) {
+    function getFunction(...$args) {
+        $instance = instance();
+        return $instance->getFunction(...$args);
+    }
 }