diff --git a/src/Error/Error.php b/src/Error/Error.php
index 61c309fa16e..bd50ffaf9e8 100644
--- a/src/Error/Error.php
+++ b/src/Error/Error.php
@@ -39,10 +39,8 @@
 class Error extends \Exception
 {
     private $lineno;
-    private $name;
     private $rawMessage;
-    private $sourcePath;
-    private $sourceCode;
+    private ?Source $source;
 
     /**
      * Constructor.
@@ -57,16 +55,8 @@ public function __construct(string $message, int $lineno = -1, ?Source $source =
     {
         parent::__construct('', 0, $previous);
 
-        if (null === $source) {
-            $name = null;
-        } else {
-            $name = $source->getName();
-            $this->sourceCode = $source->getCode();
-            $this->sourcePath = $source->getPath();
-        }
-
         $this->lineno = $lineno;
-        $this->name = $name;
+        $this->source = $source;
         $this->rawMessage = $message;
         $this->updateRepr();
     }
@@ -84,25 +74,17 @@ public function getTemplateLine(): int
     public function setTemplateLine(int $lineno): void
     {
         $this->lineno = $lineno;
-
         $this->updateRepr();
     }
 
     public function getSourceContext(): ?Source
     {
-        return $this->name ? new Source($this->sourceCode, $this->name, $this->sourcePath) : null;
+        return $this->source;
     }
 
     public function setSourceContext(?Source $source = null): void
     {
-        if (null === $source) {
-            $this->sourceCode = $this->name = $this->sourcePath = null;
-        } else {
-            $this->sourceCode = $source->getCode();
-            $this->name = $source->getName();
-            $this->sourcePath = $source->getPath();
-        }
-
+        $this->source = $source;
         $this->updateRepr();
     }
 
@@ -122,8 +104,8 @@ private function updateRepr(): void
     {
         $this->message = $this->rawMessage;
 
-        if ($this->sourcePath && $this->lineno > 0) {
-            $this->file = $this->sourcePath;
+        if ($this->source && $this->source->getPath() && $this->lineno > 0) {
+            $this->file = $this->source->getPath();
             $this->line = $this->lineno;
 
             return;
@@ -141,11 +123,12 @@ private function updateRepr(): void
             $questionMark = true;
         }
 
-        if ($this->name) {
-            if (\is_string($this->name) || $this->name instanceof \Stringable) {
-                $name = \sprintf('"%s"', $this->name);
+        if ($this->source && $this->source->getName()) {
+            $name = $this->source->getName();
+            if (\is_string($name) || $name instanceof \Stringable) {
+                $name = \sprintf('"%s"', $name);
             } else {
-                $name = json_encode($this->name);
+                $name = json_encode($name);
             }
             $this->message .= \sprintf(' in %s', $name);
         }
@@ -165,31 +148,26 @@ private function updateRepr(): void
 
     private function guessTemplateInfo(): void
     {
+        // $this->source is never null here (see guess() usage in Template)
+
         $template = null;
         $templateClass = null;
+        $name = $this->source->getName();
 
         $backtrace = debug_backtrace(\DEBUG_BACKTRACE_IGNORE_ARGS | \DEBUG_BACKTRACE_PROVIDE_OBJECT);
         foreach ($backtrace as $trace) {
             if (isset($trace['object']) && $trace['object'] instanceof Template) {
                 $currentClass = \get_class($trace['object']);
                 $isEmbedContainer = null === $templateClass ? false : str_starts_with($templateClass, $currentClass);
-                if (null === $this->name || ($this->name == $trace['object']->getTemplateName() && !$isEmbedContainer)) {
+                if (null === $name || ($name == $trace['object']->getTemplateName() && !$isEmbedContainer)) {
                     $template = $trace['object'];
                     $templateClass = \get_class($trace['object']);
                 }
             }
         }
 
-        // update template name
-        if (null !== $template && null === $this->name) {
-            $this->name = $template->getTemplateName();
-        }
-
-        // update template path if any
-        if (null !== $template && null === $this->sourcePath) {
-            $src = $template->getSourceContext();
-            $this->sourceCode = $src->getCode();
-            $this->sourcePath = $src->getPath();
+        if (null !== $template) {
+            $this->source = new Source($template->getSourceContext()->getCode(), $name, $template->getSourceContext()->getPath());
         }
 
         if (null === $template || $this->lineno > -1) {