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.addMethodInvocation((MethodInvocation node) {
    final String methodName = node.methodName.name;

    // Only check BLE-specific methods
    if (methodName != 'connect' &&
        methodName != 'discoverServices' &&
        methodName != 'startScan') {
      return;
    }

    // Use type resolution to verify this is a BLE type
    final Expression? target = node.target;
    if (target == null) {
      // Static call like FlutterBluePlus.startScan()
      final String? targetName = node.realTarget?.toSource();
      if (targetName != 'FlutterBluePlus' && targetName != 'FlutterBlue') {
        return;
      }
    } else {
      // Instance call - check the static type
      final String? typeName = target.staticType?.element?.name;
      if (typeName == null || !_bleTypeNames.contains(typeName)) {
        return;
      }
    }

    // Check if this is inside a method that checks adapter state
    bool hasStateCheck = false;
    AstNode? current = node.parent;
    BlockFunctionBody? enclosingBody;

    while (current != null) {
      if (current is BlockFunctionBody) {
        enclosingBody = current;
        break;
      }
      current = current.parent;
    }

    if (enclosingBody != null) {
      final String bodySource = enclosingBody.toSource();
      if (RegExp(r'\badapterState\b').hasMatch(bodySource) ||
          RegExp(r'\bisAvailable\b').hasMatch(bodySource) ||
          RegExp(r'\bBluetoothAdapterState\b').hasMatch(bodySource)) {
        hasStateCheck = true;
      }
    }

    if (!hasStateCheck) {
      reporter.atNode(node.methodName, code);
    }
  });
}