Parameter class abstract interface

Provides reflective access to method/constructor parameter metadata.

This interface enables inspection of:

• Parameter types and positions
• Optional/required status
• Named vs positional parameters
• Default values
• Annotations

{@template parameter_interface_features}

Key Features

• Type-safe parameter type access
• Default value inspection
• Parameter kind detection (named/positional)
• Signature generation
• Annotation support

Implementation Notes

Concrete implementations typically wrap platform-specific reflection objects while providing this uniform interface.

Example Usage

// Get parameter metadata
final params = method.getParameters();
final firstParam = params[0];

// Inspect parameter properties
print('Name: ${firstParam.getName()}');
print('Type: ${firstParam.getType<dynamic>().getName()}');
print('Optional: ${firstParam.isOptional()}');

// Check for default value
if (firstParam.hasDefaultValue()) {
  print('Default: ${firstParam.getDefaultValue()}');
}

{@endtemplate}