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.addClassDeclaration((ClassDeclaration node) {
    // Check if this is a State class
    final ExtendsClause? extendsClause = node.extendsClause;
    if (extendsClause == null) return;

    final String superName = extendsClause.superclass.toSource();
    if (!superName.startsWith('State<')) return;
    // Check fields for large collection types
    for (final ClassMember member in node.body.members) {
      if (member is FieldDeclaration) {
        final TypeAnnotation? type = member.fields.type;
        if (type == null) continue;

        final String typeSource = type.toSource();
        for (final String pattern in _largeTypePatterns) {
          if (typeSource.contains(pattern)) {
            // Check if it's unbounded (no clear size limit)
            final String fieldSource = member.toSource();
            if (!fieldSource.contains('// bounded') &&
                !fieldSource.contains('maxSize') &&
                !fieldSource.contains('limit')) {
              reporter.atNode(member);
              break;
            }
          }
        }
      }
    }
  });
}