C++ method_iterator::getNameAsString方法代码示例

CXXMethodDecl* RecordInfo::DeclaresNewOperator() {
  for (CXXRecordDecl::method_iterator it = record_->method_begin();
       it != record_->method_end();
       ++it) {
    if (it->getNameAsString() == kNewOperatorName && it->getNumParams() == 1)
      return *it;
  }
  return 0;
}

// A (non-virtual) class is considered abstract in Blink if it has
// no public constructors and no create methods.
bool RecordInfo::IsConsideredAbstract() {
  for (CXXRecordDecl::ctor_iterator it = record_->ctor_begin();
       it != record_->ctor_end();
       ++it) {
    if (!it->isCopyOrMoveConstructor() && it->getAccess() == AS_public)
      return false;
  }
  for (CXXRecordDecl::method_iterator it = record_->method_begin();
       it != record_->method_end();
       ++it) {
    if (it->getNameAsString() == kCreateName)
      return false;
  }
  return true;
}

void RecordInfo::DetermineTracingMethods() {
  if (determined_trace_methods_)
    return;
  determined_trace_methods_ = true;
  if (Config::IsGCBase(name_))
    return;
  CXXMethodDecl* trace = 0;
  CXXMethodDecl* traceAfterDispatch = 0;
  bool isTraceAfterDispatch;
  for (CXXRecordDecl::method_iterator it = record_->method_begin();
       it != record_->method_end();
       ++it) {
    if (Config::IsTraceMethod(*it, &isTraceAfterDispatch)) {
      if (isTraceAfterDispatch) {
        traceAfterDispatch = *it;
      } else {
        trace = *it;
      }
    } else if (it->getNameAsString() == kFinalizeName) {
        finalize_dispatch_method_ = *it;
    }
  }
  if (traceAfterDispatch) {
    trace_method_ = traceAfterDispatch;
    trace_dispatch_method_ = trace;
  } else {
    // TODO: Can we never have a dispatch method called trace without the same
    // class defining a traceAfterDispatch method?
    trace_method_ = trace;
    trace_dispatch_method_ = 0;
  }
  if (trace_dispatch_method_ && finalize_dispatch_method_)
    return;
  // If this class does not define dispatching methods inherit them.
  for (Bases::iterator it = GetBases().begin(); it != GetBases().end(); ++it) {
    // TODO: Does it make sense to inherit multiple dispatch methods?
    if (CXXMethodDecl* dispatch = it->second.info()->GetTraceDispatchMethod()) {
      assert(!trace_dispatch_method_ && "Multiple trace dispatching methods");
      trace_dispatch_method_ = dispatch;
    }
    if (CXXMethodDecl* dispatch =
        it->second.info()->GetFinalizeDispatchMethod()) {
      assert(!finalize_dispatch_method_ &&
             "Multiple finalize dispatching methods");
      finalize_dispatch_method_ = dispatch;
    }
  }
}

bool RecordInfo::IsNonNewable() {
  if (is_non_newable_ == kNotComputed) {
    bool deleted = false;
    bool all_deleted = true;
    for (CXXRecordDecl::method_iterator it = record_->method_begin();
         it != record_->method_end();
         ++it) {
      if (it->getNameAsString() == kNewOperatorName) {
        deleted = it->isDeleted();
        all_deleted = all_deleted && deleted;
      }
    }
    is_non_newable_ = (deleted && all_deleted) ? kTrue : kFalse;
  }
  return is_non_newable_;
}

bool RecordInfo::IsOnlyPlacementNewable() {
  if (is_only_placement_newable_ == kNotComputed) {
    bool placement = false;
    bool new_deleted = false;
    for (CXXRecordDecl::method_iterator it = record_->method_begin();
         it != record_->method_end();
         ++it) {
      if (it->getNameAsString() == kNewOperatorName) {
        if (it->getNumParams() == 1) {
          new_deleted = it->isDeleted();
        } else if (it->getNumParams() == 2) {
          placement = !it->isDeleted();
        }
      }
    }
    is_only_placement_newable_ = (placement && new_deleted) ? kTrue : kFalse;
  }
  return is_only_placement_newable_;
}

bool RecordInfo::IsStackAllocated() {
  if (is_stack_allocated_ == kNotComputed) {
    is_stack_allocated_ = kFalse;
    for (Bases::iterator it = GetBases().begin();
         it != GetBases().end();
         ++it) {
      if (it->second.info()->IsStackAllocated()) {
        is_stack_allocated_ = kTrue;
        return is_stack_allocated_;
      }
    }
    for (CXXRecordDecl::method_iterator it = record_->method_begin();
         it != record_->method_end();
         ++it) {
      if (it->getNameAsString() == kNewOperatorName &&
          it->isDeleted() &&
          Config::IsStackAnnotated(*it)) {
        is_stack_allocated_ = kTrue;
        return is_stack_allocated_;
      }
    }
  }
  return is_stack_allocated_;
}