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Posted to issues@arrow.apache.org by "sgilmore10 (via GitHub)" <gi...@apache.org> on 2023/06/05 14:43:07 UTC

[GitHub] [arrow] sgilmore10 opened a new issue, #35914: [MATLAB] Integrate the latest `libmexclass` changes to support error-handling

sgilmore10 opened a new issue, #35914:
URL: https://github.com/apache/arrow/issues/35914

   ### Describe the enhancement requested
   
   
   
   Integrate the latest version of `libmexclass` (commit [77f3d72](https://github.com/mathworks/libmexclass/commit/77f3d72c22a9ddab7b54ba325d757c3e82e57987)) to support error-handling. 
   
   Here's an overview of the changes:
   
   1. Added a simple class called `libmexclass::error::Error` which has two `std::string` member properties: `id` and `message`. 
   2. Added a new field named `error` to  `libmexclass::proxy::method::Context`. `error` is a `std::optional<libmexclass::error::Error>`. Proxy class methods can set this field if an error occurred.
   3. The gateway MEX function checks if `error` is set. If so, it throws a MATLAB facing error using the `id` and `message` stored in `error`.
   4. To support throwing errors at construction, proxy classes are now required to define a static make function with the following signature: `libmexclass::proxy::MakeResult make(const libmexclass::proxy::FunctionArguments& constructor_arguments);` The output argument `libmexclass::proxy::MakeResult` is a typedef to `std::variant<std::shared_ptr<libmexclass::proxy::Proxy>, libmexclass::error::Error>`.
   
   ### Component(s)
   
   MATLAB


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[GitHub] [arrow] kou closed issue #35914: [MATLAB] Integrate the latest `libmexclass` changes to support error-handling

Posted by "kou (via GitHub)" <gi...@apache.org>.

kou closed issue #35914: [MATLAB] Integrate the latest `libmexclass` changes to support error-handling
URL: https://github.com/apache/arrow/issues/35914


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[GitHub] [arrow] sgilmore10 commented on issue #35914: [MATLAB] Integrate the latest `libmexclass` changes to support error-handling

Posted by "sgilmore10 (via GitHub)" <gi...@apache.org>.

sgilmore10 commented on issue #35914:
URL: https://github.com/apache/arrow/issues/35914#issuecomment-1576936957

   take


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