{"record":{"id":"b89cc5bc48c997f2","repo":"bevyengine/bevy","slug":"argument-signature-has-too-many-arguments","errorCode":null,"errorMessage":"argument signature `{:?}` has too many arguments (max {})","messagePattern":"argument signature `(.+?)` has too many arguments \\(max (.+?)\\)","errorType":"exception","errorClass":"FunctionOverloadError","httpStatus":null,"severity":"error","filePath":"crates/bevy_reflect/src/func/error.rs","lineNumber":60,"sourceCode":"/// [`DynamicFunction`]: crate::func::DynamicFunction\n/// [`DynamicFunctionMut`]: crate::func::DynamicFunctionMut\npub type FunctionResult<'a> = Result<Return<'a>, FunctionError>;\n\n/// An error that occurs when attempting to add a function overload.\n#[derive(Debug, Error, PartialEq)]\npub enum FunctionOverloadError {\n    /// A [`SignatureInfo`] was expected, but none was found.\n    ///\n    /// [`SignatureInfo`]: crate::func::info::SignatureInfo\n    #[error(\"expected at least one `SignatureInfo` but found none\")]\n    MissingSignature,\n    /// An error that occurs when attempting to add a function overload with a duplicate signature.\n    #[error(\"could not add function overload: duplicate found for signature `{0:?}`\")]\n    DuplicateSignature(ArgumentSignature),\n    /// An attempt was made to add an overload with more than [`ArgCount::MAX_COUNT`] arguments.\n    ///\n    /// [`ArgCount::MAX_COUNT`]: crate::func::args::ArgCount\n    #[error(\n        \"argument signature `{:?}` has too many arguments (max {})\",\n        0,\n        ArgCount::MAX_COUNT\n    )]\n    TooManyArguments(ArgumentSignature),\n}\n\n/// An error that occurs when registering a function into a [`FunctionRegistry`].\n///\n/// [`FunctionRegistry`]: crate::func::FunctionRegistry\n#[derive(Debug, Error, PartialEq)]\npub enum FunctionRegistrationError {\n    /// A function with the given name has already been registered.\n    ///\n    /// Contains the duplicate function name.\n    #[error(\"a function has already been registered with name {0:?}\")]\n    DuplicateName(Cow<'static, str>),\n    /// The function is missing a name by which it can be registered.","sourceCodeStart":42,"sourceCodeEnd":78,"githubUrl":"https://github.com/bevyengine/bevy/blob/396ca727080776bd313bb892423b7d94e03b81b4/crates/bevy_reflect/src/func/error.rs#L42-L78","documentation":"FunctionOverloadError::TooManyArguments — the overload's argument signature has more parameters than ArgCount::MAX_COUNT allows, so it cannot be represented. Reduce the number of arguments in the function signature.","triggerScenarios":"Thrown at crates/bevy_reflect/src/func/error.rs:60 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Reduce the number of parameters to within the maximum","Group parameters into a single struct parameter"],"exampleFix":null,"handlingStrategy":"validation","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"396ca727080776bd313bb892423b7d94e03b81b4","analyzedAt":"2026-08-20T16:12:39.808Z","contentChangedAt":"2026-08-20T16:12:39.808Z","schemaVersion":2},"datasetVersion":"2026-09-14T05:17:10.506Z"}