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@@ -253,6 +253,9 @@ class JsonFile
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*/
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public static function parseJson($json, $file = null)
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{
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+ if (null === $json) {
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+ return;
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+ }
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$data = json_decode($json, true);
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if (null === $data && JSON_ERROR_NONE !== json_last_error()) {
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self::validateSyntax($json, $file);
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