runWithReporter method

  1. @override
void runWithReporter(
  1. SaropaDiagnosticReporter reporter,
  2. SaropaContext context
)
override

Override this method to implement your lint rule.

Use context to register callbacks for AST node types:

context.addMethodInvocation((node) {
  if (condition) {
    reporter.atNode(node);
  }
});

Implementation

@override
void runWithReporter(
  SaropaDiagnosticReporter reporter,
  SaropaContext context,
) {
  context.addInstanceCreationExpression((InstanceCreationExpression node) {
    final String typeName = node.constructorName.type.name.lexeme;

    // Check for AndroidNotificationDetails constructor
    if (typeName != 'AndroidNotificationDetails') return;

    // Check if channelDescription is provided as named argument
    bool hasChannelDescription = false;
    bool hasImportance = false;

    for (final Expression arg in node.argumentList.arguments) {
      if (arg is NamedExpression) {
        final String name = arg.name.label.name;
        if (name == 'channelDescription') {
          hasChannelDescription = true;
        }
        if (name == 'importance') {
          hasImportance = true;
        }
      }
    }

    // Warn if missing channelDescription
    if (!hasChannelDescription) {
      reporter.atNode(node.constructorName, code);
      return;
    }

    // Also suggest setting importance for visibility
    if (!hasImportance) {
      reporter.atNode(node.constructorName, code);
    }
  });
}