{"record":{"id":"a22fb8d0f9032168","repo":"DioxusLabs/dioxus","slug":"invalid-result-type","errorCode":null,"errorMessage":"Invalid Result type","messagePattern":"Invalid Result type","errorType":"validation","errorClass":"syn::Error","httpStatus":null,"severity":"error","filePath":"packages/manganis/manganis-macro/src/ffi.rs","lineNumber":99,"sourceCode":"                            return Err(syn::Error::new(ty.span(), \"Invalid Option type\"));\n                        }\n                        \"Result\" => {\n                            if let syn::PathArguments::AngleBracketed(args) = &segment.arguments {\n                                let mut iter = args.args.iter();\n                                if let (\n                                    Some(syn::GenericArgument::Type(ok_ty)),\n                                    Some(syn::GenericArgument::Type(err_ty)),\n                                ) = (iter.next(), iter.next())\n                                {\n                                    let ok_type = Self::from_type(ok_ty)?;\n                                    let err_type = Self::from_type(err_ty)?;\n                                    return Ok(ForeignType::Result(\n                                        Box::new(ok_type),\n                                        Box::new(err_type),\n                                    ));\n                                }\n                            }\n                            return Err(syn::Error::new(ty.span(), \"Invalid Result type\"));\n                        }\n                        _ => {\n                            // Assume it's an opaque type reference\n                            return Ok(ForeignType::OpaqueRef(segment.ident.clone()));\n                        }\n                    }\n                }\n                Err(syn::Error::new(ty.span(), \"Unsupported type path\"))\n            }\n            Type::Reference(type_ref) => {\n                if let Type::Path(path) = &*type_ref.elem {\n                    if path.path.is_ident(\"str\") {\n                        return Ok(ForeignType::StrRef);\n                    }\n                    // Check for &OpaqueType\n                    if path.path.segments.len() == 1 {\n                        return Ok(ForeignType::OpaqueRef(path.path.segments[0].ident.clone()));\n                    }","sourceCodeStart":81,"sourceCodeEnd":117,"githubUrl":"https://github.com/DioxusLabs/dioxus/blob/393d190a801ccb441d41923e232289b4f8a5c669/packages/manganis/manganis-macro/src/ffi.rs#L81-L117","documentation":"Error \"Invalid Result type\" thrown in DioxusLabs/dioxus.","triggerScenarios":"Thrown at packages/manganis/manganis-macro/src/ffi.rs:99 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"393d190a801ccb441d41923e232289b4f8a5c669","analyzedAt":"2026-08-16T11:27:45.815Z","schemaVersion":2},"datasetVersion":"2026-08-16T13:17:31.715Z"}