Add missing null check

vdechenaux · vdechenaux · commit b7f3c961b041 · 2019-10-30T21:55:25.000+01:00
Fixes #1
diff --git a/src/Webcam.php b/src/Webcam.php
@@ -52,6 +52,10 @@ public function close(): void
 
     public function saveFrame(string $filename): bool
     {
+        if ($this->cvCamera === null) {
+            return false;
+        }
+
         return (bool) $this->ffi->cvSaveImage($filename, $this->ffi->cvQueryFrame($this->cvCamera));
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -52,6 +52,10 @@ public function close(): void`
`52`	`52`
`53`	`53`	`public function saveFrame(string $filename): bool`
`54`	`54`	`{`
	`55`	`+ if ($this->cvCamera === null) {`
	`56`	`+ return false;`
	`57`	`+ }`
	`58`	`+`
`55`	`59`	`return (bool) $this->ffi->cvSaveImage($filename, $this->ffi->cvQueryFrame($this->cvCamera));`
`56`	`60`	`}`
`57`	`61`	`}`