content: /*
   * Copyright 2021 Alibaba Group Holding Limited.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *  	http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.alibaba.graphscope.stdcxx;
  
  import static com.alibaba.graphscope.utils.CppHeaderName.CORE_JAVA_TYPE_ALIAS_H;
  
  import com.alibaba.fastffi.CXXHead;
  import com.alibaba.fastffi.CXXOperator;
  import com.alibaba.fastffi.CXXPointer;
  import com.alibaba.fastffi.CXXReference;
  import com.alibaba.fastffi.CXXTemplate;
  import com.alibaba.fastffi.CXXValue;
  import com.alibaba.fastffi.FFIFactory;
  import com.alibaba.fastffi.FFIGen;
  import com.alibaba.fastffi.FFISettablePointer;
  import com.alibaba.fastffi.FFITypeAlias;
  
  @FFIGen
  @CXXHead(system = {"vector", "string"})
  @CXXHead(CORE_JAVA_TYPE_ALIAS_H)
  @FFITypeAlias("std::vector")
  @CXXTemplate(cxx = "char", java = "java.lang.Byte")
  @CXXTemplate(cxx = "int32_t", java = "java.lang.Integer")
  public interface StdVector<E> extends CXXPointer, FFISettablePointer {
  
      long size();
  
      @CXXOperator("[]")
      @CXXReference
      E get(long index);
  
      @CXXOperator("[]")
      void set(long index, @CXXReference E value);
  
      void push_back(@CXXValue E e);
  
      default void add(@CXXReference E value) {
          long size = size();
          long cap = capacity();
          if (size == cap) {
              reserve(cap << 1);
          }
          push_back(value);
      }
  
      default @CXXReference E append() {
          long size = size();
          long cap = capacity();
          if (size == cap) {
              reserve(cap << 1);
          }
          resize(size + 1);
          return get(size);
      }
  
      void clear();
  
      long data();
  
      long capacity();
  
      void reserve(long size);
  
      void resize(long size);
  
      @FFIFactory
      interface Factory<E> {
  
          StdVector<E> create();
      }
  }
  