run method

@override void run(CustomLintResolver resolver, ErrorReporter reporter, CustomLintContext context)

Emits lints for a given file.

run will only be invoked with files respecting filesToAnalyze

Implementation

@override
void run(
  CustomLintResolver resolver,
  ErrorReporter reporter,
  CustomLintContext context,
) {
  context.registry.addHookWidgetBody((node, diagnosticNode) {
    // get all hook expressions from build method
    final hookExpressions = switch (node) {
      ExpressionFunctionBody(expression: final AstNode node) ||
      BlockFunctionBody(
        block: final AstNode node,
      ) => getAllInnerHookExpressions(node),
      _ => <InvocationExpression>[],
    };

    final returnExpressions = getAllReturnExpressions(node).nonNulls;
    // everything past that return is considered conditional
    final firstReturn =
        returnExpressions.isEmpty
            ? null
            : returnExpressions.reduce(
              (acc, curr) => acc.offset < curr.offset ? acc : curr,
            );

    final hooksCalledConditionally = hookExpressions.where(
      (e) => _isConditional(firstReturn, e, node),
    );

    for (final hookExpression in hooksCalledConditionally) {
      reporter.atNode(hookExpression, _getLintCode());
    }
  });
}