jsReleaseRuntimeRefs function

String? jsReleaseRuntimeRefs(Pointer<JSRuntime> rt, Pointer<JSContext> ctx)

Release Dart-side references while ctx is still valid.

QuickJS contexts must be released before the runtime, but JSRef cleanup needs the context to free JSValues. Returning the leak report lets callers finish native teardown before surfacing the diagnostic.

Implementation

String? jsReleaseRuntimeRefs(Pointer<JSRuntime> rt, Pointer<JSContext> ctx) {
  final referenceleak = <String>[];
  final opaque = runtimeOpaques[rt];
  if (opaque == null) return null;

  while (true) {
    JSRef? ref;
    for (final candidate in opaque._ref.values) {
      if (candidate is JSRefLeakable) {
        ref = candidate;
        break;
      }
    }
    if (ref == null) break;
    ref.destroy();
  }
  while (opaque._ref.isNotEmpty) {
    final ref = opaque._ref.values.first;
    final objStrs = ref.toString().split('\n');
    final objStr = objStrs.isNotEmpty ? objStrs[0] + " ..." : objStrs[0];
    referenceleak.add(
      "  ${identityHashCode(ref)}\t${ref._refCount + 1}\t${ref.runtimeType.toString()}\t$objStr",
    );
    ref.destroy();
  }
  return referenceleak.isEmpty
      ? null
      : 'reference leak:\n    ADDR\tREF\tTYPE\tPROP\n${referenceleak.join('\n')}';
}