Abstract: It is an important performance issue how to reduce the translated code quantity in a programming language translation.Based on the comprehensive consideration of the definition and use of value and template in TTCN-3 language，a new translation scheme from the type system of TTCN-3 to C++ is presented.Compared with the existing scheme，the proportion of the original TTCN-3 code quantity to the translated C++ code quantity decreases from 1∶20 to 1∶5.Meanwhile，the new scheme reduces the preservation of type information copies and improves the memory utilization，or rather the performance of the compiler and the executor.In addition，since the translated C++ codes are basically consistent with the original TTCN-3 codes，this will improve readability，or maintainability of the code.

Key words: Testing and Test Control Notation version 3（TTCN-3）, translation, supported database of type, type information

摘要： 在程序语言翻译技术中，如何有效地减少翻译后的代码数量是一个值得研究的性能问题。综合考虑TTCN-3语言中值和模板的定义和使用，提出一种新的TTCN-3语言到C++语言翻译方案。与现有的翻译方案相比，翻译后的C++代码与原TTCN-3代码比例由1∶20降低到1∶5左右。与此同时，新方案减少了类型信息副本的保存，提高内存的利用效率，更确切地说，提高了TTCN-3语言编译器和执行器的性能。此外，因为翻译后的C++代码与原TTCN-3代码基本一致，这使得代码的可读性得到改善，进而提高代码的可维护性。

关键词: TTCN-3语言, 翻译, 类型支持库, 类型信息