示例#1
0
  private void checkCyclicConstructorDelegationCall(
      @NotNull ConstructorDescriptor constructorDescriptor,
      @NotNull Set<ConstructorDescriptor> visitedConstructors) {
    if (visitedConstructors.contains(constructorDescriptor)) return;

    // if visit constructor that is already in current chain
    // such constructor is on cycle
    Set<ConstructorDescriptor> visitedInCurrentChain = Sets.newHashSet();
    ConstructorDescriptor currentConstructorDescriptor = constructorDescriptor;
    while (true) {
      visitedInCurrentChain.add(currentConstructorDescriptor);
      ConstructorDescriptor delegatedConstructorDescriptor =
          getDelegatedConstructor(currentConstructorDescriptor);
      if (delegatedConstructorDescriptor == null) break;

      // if next delegation call is super or primary constructor or already visited
      if (!constructorDescriptor
              .getContainingDeclaration()
              .equals(delegatedConstructorDescriptor.getContainingDeclaration())
          || delegatedConstructorDescriptor.isPrimary()
          || visitedConstructors.contains(delegatedConstructorDescriptor)) {
        break;
      }

      if (visitedInCurrentChain.contains(delegatedConstructorDescriptor)) {
        reportEachConstructorOnCycle(delegatedConstructorDescriptor);
        break;
      }
      currentConstructorDescriptor = delegatedConstructorDescriptor;
    }
    visitedConstructors.addAll(visitedInCurrentChain);
  }