fixup! Add warning for missing argument types in stubs

Author: kocsismate

build/gen_stub.php

@@ -580,18 +580,19 @@ public function getVariableName(): string {
             throw new Exception("@$this->name doesn't have any value");
         }
 
+        $matches = [];
+
         if ($this->name === "param") {
-            $pos = strpos($value, " ");
-            if ($pos !== false) {
-                $value = substr($value, $pos + 1);
-            }
+            preg_match('/^\s*[\w\|\\\]+\s*\$(\w+).*$/', $value, $matches);
+        } elseif ($this->name === "prefer-ref") {
+            preg_match('/^\s*\$(\w+).*$/', $value, $matches);
         }
 
-        if ($value[0] !== '$') {
-            throw new Exception("@$this->name doesn't contain variable name");
+        if (isset($matches[1]) === false) {
+            throw new Exception("@$this->name doesn't contain variable name or has an invalid format \"$value\"");
         }
 
-        return substr($value, 1);
+        return $matches[1];
     }
 }
 
@@ -673,8 +674,8 @@ function parseFunctionLike(
         $type = $param->type ? Type::fromNode($param->type) : null;
         if ($type === null && !isset($docParamTypes[$varName]) && !$hasParameterWarning) {
             $hasParameterWarning = true;
-            //throw new Exception("Missing argument type for function $name()");
-            echo "Warning: Missing argument type for function $name()\n";
+            //throw new Exception("Missing parameter type for function $name()");
+            echo "Warning: Missing parameter type for function $name()\n";
         }
 
         if ($param->default instanceof Expr\ConstFetch &&
@@ -1124,7 +1125,7 @@ function initPhpParser() {
 $optind = null;
 $options = getopt("f", ["force-regeneration"], $optind);
 $forceRegeneration = isset($options["f"]) || isset($options["force-regeneration"]);
-$location = $argv[$optind + 1] ?? ".";
+$location = $argv[$optind] ?? ".";
 
 if (is_file($location)) {
     // Generate single file.