Fix ErrorEvent property access in PrismStreamEvent: $event->type should be $event->errorType

[nicolawebdev]

Description

PrismStreamEvent::toLaravelStreamEvent() crashes when a Prism ErrorEvent is emitted during streaming, because it accesses $event->type which doesn't exist as a property on Prism\Prism\Streaming\Events\ErrorEvent.

Error

ErrorException: Undefined property: Prism\Prism\Streaming\Events\ErrorEvent::$type
in vendor/laravel/ai/src/Gateway/Prism/PrismStreamEvent.php:50

Root Cause

In PrismStreamEvent.php line 50:

PrismStreamEventType::Error => new Error($event->id, $event->type, $event->message, $event->recoverable, $event->timestamp, $event->metadata),

The Prism ErrorEvent class defines the property as errorType, not type:

// Prism\Prism\Streaming\Events\ErrorEvent
public function __construct(
    string $id,
    int $timestamp,
    public string $errorType,       // <-- property is "errorType"
    public string $message,
    public bool $recoverable,
    public ?array $metadata = null,
) { ... }

The type() method exists but returns StreamEventType::Error (an enum), not the string expected by Laravel\Ai\Streaming\Events\Error.

Fix

- PrismStreamEventType::Error => new Error($event->id, $event->type, $event->message, $event->recoverable, $event->timestamp, $event->metadata),
+ PrismStreamEventType::Error => new Error($event->id, $event->errorType, $event->message, $event->recoverable, $event->timestamp, $event->metadata),

Versions

• laravel/ai: v0.4.1
• prism-php/prism: v1.18.1
• PHP: 8.4