dart_annotations 1.0.0

A Dart analyzer plugin providing the annotations and static analysis rules for them.

Annotations

A comprehensive Dart analyzer plugin that provides powerful annotations and static analysis rules for them.

Annotations

• @Throws: Declare the exceptions that a function can throw, enabling better documentation and static analysis of error handling.

Rules

• handle_throwing_invocations: Ensures that any function that calls a function annotated with @Throws either catches the declared exceptions or also declares them with @Throws.

Installation

Add this package as a dependency:

dependencies:
  annotations: ^1.0.0

Configuration

You can configure it in your analysis_options.yaml:

analyzer:
  plugins:
    - annotations

linter:
  rules:
    handle_throwing_invocations: true

Usage

@Throws({CustomException})
void riskyFunction() { /* ... */ }

// ✅ Specific exception type
try {
  riskyFunction();
} on CustomException catch (e) {
  // handle
}

// ✅ General Exception catch
try {
  riskyFunction();
} on Exception catch (e) {
  // handle
}

// ✅ Catch-all
try {
  riskyFunction();
} catch (e) {
  // handle
}

// ✅ Rethrowing with @Throws
@Throws({CustomException})
void callerFunction() {
  riskyFunction(); // OK because caller also declares @Throws
}

// ❌ Not declaring @Throws in caller
void anotherCallerFunction() {
    riskyFunction(); // Warning: callerFunction should declare @Throws
}

Contributing

Contributions are welcome! Please feel free to submit a Pull Request. For major changes, please open an issue first to discuss what you would like to change.

License

This project is licensed under the MIT License - see the LICENSE file for details.