runWithReporter method

@override void runWithReporter(SaropaDiagnosticReporter reporter, SaropaContext context)

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.addSetOrMapLiteral((SetOrMapLiteral node) {
    if (!node.isMap) return;

    final List<String> stringKeys = <String>[];

    for (final CollectionElement element in node.elements) {
      if (element is MapLiteralEntry) {
        final Expression key = element.key;
        if (key is SimpleStringLiteral) {
          stringKeys.add(key.value);
        } else {
          // Non-string key, skip ordering check
          return;
        }
      }
    }

    // Check if keys are sorted
    for (int i = 1; i < stringKeys.length; i++) {
      if (stringKeys[i].compareTo(stringKeys[i - 1]) < 0) {
        reporter.atNode(node);
        return;
      }
    }
  });
}