findScope method

Scope findScope(
  1. Name nameNode
)

Implementation

Scope findScope(Name nameNode) {
  String? name = nameNode.value;
  Node? parent = nameNode.parent;
  Node? node = nameNode;
  if (parent is FunctionNode && parent.name == node && !parent.isExpression) {
    node = parent.parent;
  }
  Scope scope = enclosingScope(node);
  while (scope is! Program) {
    if (scope.environment == null) {
      throw "$scope does not have an environment";
    }
    if (scope.environment!.contains(name)) return scope;
    scope = enclosingScope(scope.parent);
  }
  return scope;
}